13.1 General.

13.1.1 Minimum Requirements.

13.1.1.1

This chapter shall provide the minimum requirements for the routine inspection, testing, and maintenance of common components and valves.

13.2 General Provisions.

13.2.1

All system valves shall be protected from physical damage and shall be accessible.

13.2.2 Main Drain Test.

A main drain test shall be conducted annually for each water supply lead-in to a building water-based fire protection system to determine whether there has been a change in the condition of the water supply.

13.2.2.1

Where the lead-in to a building supplies a header or manifold serving multiple systems, a single main drain test shall be permitted.

13.2.2.2

In systems where the sole water supply is through a backflow preventer and/or pressure-reducing valves, the main drain test of at least one system downstream of the device shall be conducted on a quarterly basis.

13.2.2.3

When there is a 10 percent reduction in full flow pressure when compared to the original acceptance test or previously performed tests, the cause of the reduction shall be identified and corrected if necessary.

13.2.3 Waterflow Alarm Devices.

13.2.3.1 Mechanical Waterflow Alarm Devices, Including, but Not Limited to, Water Motor Gongs.

13.2.3.1.1

Mechanical waterflow alarm devices shall be inspected quarterly to verify that they are free of physical damage

13.2.3.1.2

Mechanical waterflow alarm devices shall be tested quarterly.

13.2.3.1.3

Activation of the waterflow alarm device shall result in an audible alarm starting within 5 minutes of such flow beginning and continuing until such flow stops.

13.2.3.2 Vane-Type, Paddle-Type, and Pressure-Switch-Type Waterflow Devices.

13.2.3.2.1

Vane-type, paddle-type, and pressure-switch-type waterflow alarm devices shall be inspected quarterly to verify that they are free of physical damage.

13.2.3.2.2

Vane-type, paddle-type, and pressure-switch-type waterflow alarm devices shall be tested semiannually.

13.2.3.2.3

Activation of the waterflow alarm device shall occur within 90 seconds of waterflow at the alarm-initiating device when flow equal to that from a single sprinkler of the smallest orifice size installed in the system occurs.

13.2.3.3

Testing waterflow alarm devices on wet pipe systems shall be accomplished by opening the inspector's test connection or by using the automated test equipment in accordance with 4.6.6.

13.2.3.4

Where freezing weather conditions or other circumstances prohibits the use of the inspector's test connection, the bypass connection shall be permitted to be used.

13.2.3.5

Except as permitted in 13.2.3.5.1, testing of vane-type waterflow alarm devices on wet pipe systems shall be accomplished by a flow of water equivalent to the flow out of the smallest single k-factor sprinkler (or smaller) past the flow switch.

13.2.3.5.1

A vane-type waterflow alarm device listed with an integral automated test feature capable of verifying both the presence of water at the location of the waterflow alarm device and the proper function of the waterflow device and alarm shall be permitted to be used.

13.2.3.5.2

Vane-type waterflow alarm devices tested semiannually using circulated water or as described in 13.2.3.5.1 shall be tested by opening the inspector’s test connection at a minimum frequency of once every 3 years.

13.2.3.6

Testing waterflow alarm devices on dry pipe, preaction, or deluge systems shall be accomplished by using the bypass connection.

13.2.3.7 Waterflow Alarm Device Status.

13.2.3.7.1

During testing and maintenance, vane-type waterflow alarm devices shall remain in service unless impairment procedures are followed in accordance with NFPA 72 or the adopted fire code.

13.2.3.7.1.1

Disabling vane-type waterflow alarm devices by preventing movement of the vane or stem shall be prohibited.

13.2.3.7.1.2

Interruption of the signal sent by the vane-type waterflow alarm device is permitted in accordance with 13.2.3.7.1.3 and 13.2.3.7.1.4.

13.2.3.7.1.3

Interruption of the waterflow alarm circuit shall be accomplished using a device listed for the purpose.

13.2.3.7.1.4

Interruption of the waterflow alarm circuit shall result in an audible and visual trouble signal in accordance with NFPA 72 or the adopted fire code, or other approved indication at the switch signal in accordance with NFPA 72 or the adopted fire alarm code, or other approved indication at the switch.

13.2.4 Gauges.

13.2.4.1 Inspections.

13.2.4.1.1

Gauges shall be inspected monthly to verify that the gauges are operable and not physically damaged.

13.2.4.1.2

Gauges monitoring water pressure shall be inspected quarterly to verify that normal water supply pressure is being maintained.

13.2.4.1.3

Gauges monitoring air or nitrogen pressure shall be inspected monthly to verify that normal air or nitrogen pressure are being maintained.

13.2.4.1.3.1

The gauge on the quick-opening device, if provided, shall indicate the same pressure as the gauge on the system side of the dry pipe valve.

13.2.4.1.3.2

Where air pressure supervision is connected to a constantly attended location, gauges shall be inspected quarterly.

13.2.4.1.4

For dry pipe or preaction systems protecting freezers with an air pressure gauge(s) on the air line(s) between the compressor and the dry pipe or preaction valve, the air pressure gauge near the compressor shall be compared monthly to the pressure gauge above the dry pipe or preaction valve.

13.2.4.1.4.1

When the gauge near the compressor is reading higher than the gauge near the dry pipe valve, the air line in service shall be taken out of service and the alternate air line shall be opened to equalize the pressure.

13.2.4.1.4.2

An air line taken out of service in accordance with 13.2.4.1.4.1 shall be internally inspected, removed of all ice blockage, and reassembled for use as a future alternate air line.

13.2.4.2

Gauges shall be replaced every 5 years or tested every 5 years by comparison with a calibrated gauge.

13.2.4.3

Gauges not accurate to within 3 percent of the full scale shall be recalibrated or replaced.

13.2.5 Supervisory Signal Devices (except valve supervisory switches).

13.2.5.1

Supervisory signal devices shall be inspected quarterly to verify that they are free of physical damage.

13.2.5.2

Supervisory signal devices shall be tested annually in accordance with the manufacturer’s instructions.

13.2.6 Records.

Records shall be maintained in accordance with Section 4.3.

13.3 Control Valves in Water-Based Fire Protection Systems.

13.3.1

Each control valve shall be identified and have a sign indicating the system or portion of the system it controls.

13.3.1.1

Systems that have more than one control valve that must be closed to work on a system shall have a sign on each affected valve referring to the existence and location of other valves.

13.3.1.2

When a normally open valve is closed, the procedures established in Chapter 15 shall be followed.

13.3.1.3

Each normally open valve shall be secured by means of a seal or a lock or shall be electrically supervised in accordance with the applicable NFPA standards.

13.3.1.4

Normally closed valves shall be secured by means of a seal or shall be electrically supervised in accordance with the applicable NFPA standard.

13.3.1.5

Sealing or electrical supervision shall not be required for hose valves.

13.3.2 Inspection.

13.3.2.1

All valves shall be inspected weekly.

13.3.2.1.1

Valves secured with locks or supervised in accordance with applicable NFPA standards shall be permitted to be inspected monthly.

13.3.2.1.2

Valves that are electrically supervised shall be permitted to be inspected quarterly.

13.3.2.1.3

Control valve supervisory alarm devices shall be inspected quarterly to verify that they are free of physical damage.

13.3.2.1.4

After any alterations or repairs, an inspection shall be made by the property owner or designated representative to ensure that the system is in service and all valves are in the normal position and properly sealed, locked, or electrically supervised.

13.3.2.2

The valve inspection shall verify that the valves are in the following condition:

•         (1) In the normal open or closed position

•         (2) Sealed, locked, or supervised

•         (3) Accessible

•         (4) Post indicator valves (PIVs) are provided with correct wrenches

•         (5) Free from external leaks

•         (6) Provided with applicable identification

13.3.3 Testing.

13.3.3.1

Each control valve shall be operated annually through its full range and returned to its normal position.

13.3.3.2

Post indicator valves shall be opened until spring or torsion is felt in the rod, indicating that the rod has not become detached from the valve.

13.3.3.2.1

This test shall be conducted every time the valve is closed.

13.3.3.3

Post indicator and outside screw and yoke valves shall be backed a one-quarter turn from the fully open position to prevent jamming.

13.3.3.4

A valve status test shall be conducted any time the control valve is closed and reopened at system riser.

13.3.3.5 Valve Supervisory Switches.

13.3.3.5.1

Valve supervisory switches shall be tested semiannually.

13.3.3.5.2

A distinctive signal shall indicate movement from the valve’s normal position during either the first two revolutions of a handwheel or when the stem of the valve has moved one-fifth of the distance from its normal position.

13.3.3.5.3

The signal shall not be restored at any valve position except the normal position.

13.3.4 Maintenance.

13.3.4.1

The operating stems of outside screw and yoke valves shall be lubricated annually.

13.3.4.2

The valve then shall be completely closed and reopened to test its operation and distribute the lubricant.

13.4 System Valves.

13.4.1 Inspection of Alarm Valves.

Alarm valves shall be inspected as described in 13.4.1.1 and 13.4.1.2.

13.4.1.1

Alarm valves and system riser check valves shall be externally inspected quarterly and shall verify the following:

•         (1) The gauges indicate normal supply water pressure is being maintained.

•         (2) The valves and trim are free of physical damage.

•         (3) All valves are in the appropriate open or closed position.

•         (4) The retarding chamber or alarm drains are not leaking.

•         (5) Where applicable, the valve in the connection to the pressure-type contacts or              water motor–operated alarm devices are either sealed, locked, or electrically             supervised in the open position.

13.4.1.2

Alarm valves and their associated strainers, filters, and restriction orifices shall be inspected internally every 5 years unless tests indicate a greater frequency is necessary.

13.4.1.3 Maintenance.

13.4.1.3.1

Internal components shall be cleaned/repaired as necessary in accordance with the manufacturer’s instructions.

13.4.1.3.2

The system shall be returned to service in accordance with the manufacturer’s instructions.

13.4.2 Check Valves.

13.4.2.1 Inspection.

Valves shall be inspected internally every 5 years to verify that all of the valve’s components operate correctly.

13.4.2.2 Maintenance.

Internal components shall be cleaned, repaired, or replaced as necessary in accordance with the manufacturer’s instructions.

13.4.3 Preaction Valves.

13.4.3.1 Inspection.

13.4.3.1.1

The preaction valve shall be externally inspected monthly to verify the following:

•         (1) The valve is free from physical damage.

•         (2) All trim valves are in the appropriate open or closed position.

•         (3) The valve seat is not leaking.

•         (4) Electrical components are in service.

•         (5) Where applicable, the valve in the connection to the pressure-type contacts or  water motor–operated alarm devices are either sealed, locked, or electrically           supervised in the open position.

13.4.3.1.2

The interior of the preaction valve and the condition of detection devices shall be inspected annually when the trip test is conducted.

13.4.3.1.2.1

Internal inspection of valves that can be reset without removal of a faceplate shall be permitted to be conducted every 5 years.

13.4.3.1.3

Strainers, filters, and restricted orifices shall be inspected internally every 5 years unless tests indicate a greater frequency is necessary.

13.4.3.1.4

Preaction systems with auxiliary drains shall require a sign at the valve indicating the number of auxiliary drains and the location of each individual drain.

13.4.3.2 Testing.

13.4.3.2.1

The priming water level in supervised preaction systems shall be tested quarterly for compliance with the manufacturer’s instructions.

13.4.3.2.2

Except for preaction systems covered by 13.4.3.2.5, every 3 years the preaction valve shall be trip tested with the control valve fully open.

13.4.3.2.3

During those years when full flow testing in accordance with 13.4.3.2.2 is not required, the preaction valve shall be trip tested with the control valve partially open.

13.4.3.2.4

Preaction valve flow tests shall incorporate full functionality of the system as a unit, including automatic and manual activation.

13.4.3.2.5

Preaction valves protecting freezers shall be trip tested in a manner that does not introduce moisture into the piping in the freezer.

13.4.3.2.6

Preaction systems shall be tested once every 3 years for air leakage, using one of the following test methods:

•         (1) Perform a pressure test at 40 psi (3.2 bar) for 2 hours. The system shall be permitted to lose up to 3 psi (0.2 bar) during the duration of the test. Air leaks shall          be addressed if the system loses more than 3 psi (0.2 bar) during this test.

•         (2) With the system at normal system pressure, shut off the air source (compressor    or shop air) for 4 hours. If the low air pressure alarm goes off within this period, the            air leaks shall be addressed.

13.4.3.2.7 Manual Operation.

Manual actuation devices shall be operated annually.

13.4.3.2.8 Return to Service.

After the annual trip test, the preaction system shall be returned to service in accordance with the manufacturer’s instructions.

13.4.3.2.9

Grease or other sealing materials shall not be applied to the seating surfaces of preaction valves.

13.4.3.2.10

Records indicating the date the preaction valve was last tripped and the tripping time, as well as the individual and organization conducting the test, shall be maintained at a location or in a manner readily available for review by the authority having jurisdiction.

13.4.3.2.11

Low air pressure alarms, if provided, shall be tested quarterly in accordance with the manufacturer’s instructions.

13.4.3.2.12

Low-temperature alarms, if installed in valve enclosures, shall be tested annually toward the beginning of the heating season prior to the onset of freezing conditions.

13.4.3.2.13

Automatic air pressure maintenance devices, if provided, shall be tested yearly at the time of the annual preaction valve trip test, in accordance with the manufacturer’s instructions.

13.4.3.2.14

In preaction systems where nitrogen is used to allow for an increased C value in accordance with NFPA 13, the nitrogen supply shall be tested semiannually to verify the nitrogen concentration is at 98 percent or greater.

13.4.3.2.14.1

Where the nitrogen concentration is monitored at a constantly attended location, the concentration shall be verified annually.

13.4.3.2.14.2

If nitrogen concentration is found to be below 98 percent, the cause of the low concentration shall be identified and corrected.

13.4.3.3 Maintenance.

13.4.3.3.1

Leaks causing drops in supervisory pressure sufficient to sound warning alarms and electrical malfunctions causing alarms to sound shall be located and repaired.

13.4.3.3.2

During the annual trip test, the interior of the preaction valve shall be cleaned thoroughly and the parts replaced or repaired as necessary.

13.4.3.3.2.1

Interior cleaning and parts replacement or repair shall be permitted every 5 years for valves that can be reset without removal of a faceplate.

13.4.3.3.3

Auxiliary drains in preaction systems shall be operated after each system operation, toward the beginning of the heating season prior to the onset of freezing conditions where applicable, and thereafter as needed.

13.4.3.3.4

Additional maintenance as required by the manufacturer’s instructions shall be provided.

13.4.4 Deluge Valves.

13.4.4.1 Inspection.

13.4.4.1.1

The deluge valve shall be externally inspected monthly to verify the following:

•         (1) The valve is free from physical damage.

•         (2) All trim valves are in the appropriate open or closed position.

•         (3) The valve seat is not leaking.

•         (4) Electrical components are in service.

•         (5) Where applicable, the valve in the connection to the pressure-type contacts or  water motor–operated alarm devices are either sealed, locked, or electrically           supervised in the open position.

13.4.4.1.2

The interior of the deluge valve and the condition of detection devices shall be inspected annually when the trip test is conducted.

13.4.4.1.2.1

Internal inspection of valves that can be reset without removal of a faceplate shall be permitted to be conducted every 5 years.

13.4.4.1.3

Strainers, filters, restricted orifices, and diaphragm chambers shall be inspected internally every 5 years unless tests indicate a greater frequency is necessary.

13.4.4.2 Testing.

13.4.4.2.1

Deluge valve flow tests shall incorporate full functionality of the system as a unit, including automatic and manual activation.

13.4.4.2.2

Protection shall be provided for any devices or equipment subject to damage by system discharge during flow tests.

13.4.4.2.3

Except as provided by 13.4.4.2.3.1 and 13.4.4.2.3.2, each deluge valve shall be trip tested annually at full flow in warm weather and in accordance with the manufacturer’s instructions.

13.4.4.2.3.1

Where the nature of the protected property is such that water cannot be discharged for test purposes, an annual trip test shall be permitted to be conducted in a manner that does not necessitate discharge in the protected area.

13.4.4.2.3.2

Where the nature of the protected property is such that water cannot be discharged unless protected equipment is shut down (e.g., energized electrical equipment), a full flow system test shall be conducted at the next scheduled shutdown.

13.4.4.2.3.3

For full flow tests in accordance with 13.4.4.2.3.2, the test frequency shall not exceed 3 years.

13.4.4.2.4

During the annual full flow test, the water discharge patterns from all of the open spray nozzles or sprinklers shall be observed to ensure that patterns are not impeded by plugged nozzles, that nozzles are correctly positioned, and that obstructions do not prevent discharge patterns from wetting surfaces to be protected.

13.4.4.2.4.1

Where the nature of the protected property is such that water cannot be discharged, the nozzles or open sprinklers shall be inspected for correct orientation.

13.4.4.2.4.2

Where the nature of the protected property is such that water cannot be discharged unless protected equipment is shut down (e.g., energized electrical equipment), all open spray nozzles or sprinklers shall be inspected in accordance with 13.4.4.2.4 during the full flow system test conducted at the next scheduled shutdown.

13.4.4.2.4.3

Where misalignment or obstructions occur, the piping and sprinklers or nozzles shall be adjusted and/or cleaned to correct the condition, and the system shall be retested.

13.4.4.2.5

Full flow deluge valve tests, in accordance with 13.4.4.2.3 and 13.4.4.2.3.2, shall be conducted with the deluge system control valve fully open.

13.4.4.2.6

Deluge valve trip tests, in accordance with 13.4.4.2.3.1, shall be permitted to be conducted with the deluge system control valve partially open.

13.4.4.2.7 Deluge System Pressure Readings.

13.4.4.2.7.1

Pressure readings shall be recorded at the hydraulically most remote nozzle or sprinkler.

13.4.4.2.7.2

A second pressure reading shall be recorded at the deluge valve.

13.4.4.2.7.3

These readings shall be compared to the hydraulic design pressures to ensure the original system design requirements are met by the water supply.

13.4.4.2.7.4

Where the hydraulically most remote nozzle or sprinkler is inaccessible, nozzles or sprinklers in other than foam-water sprinkler systems shall be permitted to be inspected visually without taking a pressure reading on the most remote nozzle or sprinkler.

13.4.4.2.7.5

Where the reading taken at the riser indicates that the water supply has deteriorated, a gauge shall be placed on the hydraulically most remote nozzle or sprinkler and the results compared with the required design pressure.

13.4.4.2.8 Multiple Systems.

The maximum number of systems expected to operate in case of fire shall be tested simultaneously to inspect the adequacy of the water supply.

13.4.4.2.9 Manual Operation.

Manual actuation devices shall be operated annually.

13.4.4.2.10 Return to Service.

After the annual trip test, the system shall be returned to service in accordance with the manufacturer’s instructions.

13.4.4.2.11

Grease or other sealing materials shall not be applied to the seating surfaces of deluge valves.

13.4.4.2.12

Records indicating the date the deluge valve was last tripped and the tripping time, as well as the individual and organization conducting the test, shall be maintained at a location or in a manner readily available for review by the authority having jurisdiction.

13.4.4.2.13

Low air pressure supervisory devices, if provided on the detection system, shall be tested quarterly in accordance with the manufacturer’s instructions.

13.4.4.2.14

Low-temperature alarms, if installed in valve enclosures, shall be tested annually toward the beginning of the heating season prior to the onset of freezing conditions.

13.4.4.2.15

Automatic air pressure maintenance devices, if provided on the detection system, shall be tested yearly at the time of the annual deluge valve trip test, in accordance with the manufacturer’s instructions.

13.4.4.3 Maintenance.

13.4.4.3.1

Leaks causing drops in supervisory pressure sufficient to sound warning alarms and electrical malfunctions causing alarms to sound shall be located and repaired.

13.4.4.3.2

During the annual trip test, the interior of the deluge valve shall be cleaned thoroughly.

13.4.4.3.2.1

The valve’s internal and external trim parts and components shall be replaced or repaired as necessary.

13.4.4.3.2.2

Interior cleaning shall be permitted every 5 years for valves that can be reset without removal of a faceplate.

13.4.4.3.3

Auxiliary drains in deluge systems shall be operated after each system operation, toward the beginning of the heating season prior to the onset of freezing conditions, and thereafter as needed.

13.4.4.3.4

Additional maintenance as required by the manufacturer’s instructions shall be provided.

13.4.5 Dry Pipe Valves/Quick-Opening Devices.

13.4.5.1 Inspection.

13.4.5.1.1

Systems with auxiliary drains shall require a sign at the dry valve indicating the number of auxiliary drains and the location of each individual drain.

13.4.5.1.2

The dry pipe valve shall be externally inspected monthly to verify the following:

•         (1) The valve is free of physical damage.

•         (2) All trim valves are in the appropriate open or closed position.

•         (3) Where applicable, the valve between the riser and the quick-opening device is   either sealed, locked, or electrically supervised in the open position.

•         (4) The intermediate chamber is not leaking.

•         (5) Where applicable, the valve in the connection to the pressure-type contractors or             water motor–operated alarm devices are either sealed, locked, or electrically             supervised in the open position.

13.4.5.1.3

The interior of the dry pipe valve shall be inspected annually when the trip test is conducted.

13.4.5.1.4

Strainers, filters, and restricted orifices shall be inspected internally every 5 years unless tests indicate a greater frequency is necessary.

13.4.5.2 Testing.

13.4.5.2.1

The priming water level shall be tested quarterly.

13.4.5.2.2

Each dry pipe valve shall be trip tested annually during warm weather.

13.4.5.2.2.1

Dry pipe valves protecting freezers shall be trip tested in a manner that does not introduce moisture into the piping in the freezers.

13.4.5.2.2.

Every 3 years and whenever the system is altered, the dry pipe valve shall be trip tested with the control valve fully open and the quick-opening device, if provided, in service.

13.4.5.2.2.3

During those years when full flow testing in accordance with 13.4.5.2.2.2 is not required, each dry pipe valve shall be trip tested with the control valve partially open.

13.4.5.2.2.4

When refilling a dry system, the air supply shall be capable of restoring normal air pressure in the system within 30 minutes.

13.4.5.2.2.5

The requirements of 13.4.5.2.2.4 shall not apply in refrigerated spaces maintained below 5°F (–15°C), where normal system air pressure shall be permitted to be restored within 60 minutes.

13.4.5.2.3

Grease or other sealing materials shall not be applied to the seating surfaces of dry pipe valves.

13.4.5.2.4

Quick-opening devices, if provided, shall be tested quarterly.

13.4.5.2.5

A tag or card that shows the date on which the dry pipe valve was last tripped, and the name of the person and organization conducting the test, shall be attached to the valve.

13.4.5.2.5.1

Separate records of initial air and water pressure, tripping air pressure, and dry pipe valve operating conditions shall be maintained on the premises for comparison with previous test results.

13.4.5.2.5.2

Records of dry pipe valve tripping time and water transit delivery time to the inspector's test connection shall be maintained for full flow trip tests.

13.4.5.2.6

Low air pressure alarms, if provided, shall be tested annually in accordance with the manufacturer’s instructions.

13.4.5.2.7

Low temperature alarms, if installed in valve enclosures, shall be tested annually at the beginning of the heating season.

13.4.5.2.8

Automatic air pressure maintenance devices, if provided, shall be tested annually during the dry pipe valve trip test in accordance with the manufacturer’s instructions.

13.4.5.2.9

Dry pipe systems shall be tested once every 3 years for gas leakage, using one of the following test methods:

•         (1) A gas (air or nitrogen) pressure test at 40 psi (3.2 bar) shall be performed for 2      hours.

o         (a) The system shall be permitted to lose up to 3 psi (0.2 bar) during the duration of the test.

o         (b) Gas leaks shall be addressed if the system loses more than 3 psi (0.2 bar) during this test.

•         (2) With the system at normal system pressure, the gas source (nitrogen supply,             compressor, or shop air) shall be shut off for 4 hours. If the low pressure alarm goes off within this period, the leaks shall be addressed.

13.4.5.2.10

In dry pipe systems where nitrogen is used to allow for an increased C value in accordance with NFPA 13, the nitrogen supply shall be tested semiannually to verify the nitrogen concentration is at 98 percent or greater.

13.4.5.2.10.1

Where the nitrogen concentration is monitored at a constantly attended location, the concentration shall be verified annually.

13.4.5.2.10.2

If nitrogen concentration is found to be below 98 percent, the cause of the low concentration shall be identified and corrected.

13.4.5.3 Maintenance.

13.4.5.3.1

During the annual trip test, the interior of the dry pipe valve shall be cleaned thoroughly.

13.4.5.3.1.1

The valve’s internal and external trim parts and components shall be replaced or repaired as necessary.

13.4.5.3.2

Quick-opening devices shall be maintained in working order in accordance with manufacturer's requirements.

13.4.5.3.3

Auxiliary drains in dry pipe sprinkler systems shall be drained after each system operation, toward the beginning of the heating season prior to the onset of freezing conditions, and thereafter as needed.

13.5 Pressure-Reducing Valves and Relief Valves.

13.5.1 Inspection and Testing of Sprinkler Pressure-Reducing Valves.

Sprinkler pressure-reducing valves shall be inspected and tested as described in 13.5.1.1 and 13.5.1.2.

13.5.1.1

All valves shall be inspected quarterly to verify that the valves are in the following condition:

•         (1) In the open position

•         (2) Not leaking

•         (3) Maintaining downstream pressures in accordance with the design criteria

•         (4) Handwheels installed and unbroken

13.5.1.2

A full flow test shall be conducted on each valve at 5-⁠year intervals and shall be compared to previous test results.

13.5.1.2.1

Adjustments shall be made in accordance with the manufacturer’s instructions.

13.5.1.3

A partial flow test adequate to move the valve from its seat shall be conducted annually.

13.5.2 Hose Connection Pressure-Regulating Devices.

13.5.2.1

All devices shall be inspected annually to verify the following:

•         (1) The handwheel is not broken or missing.

•         (2) The outlet hose threads are not damaged.

•         (3) No leaks are present.

•         (4) The hose adapter and the cap are not missing.

13.5.2.2

A full flow test shall be conducted on each device at 5-year intervals and shall be compared to previous test results.

13.5.2.2.1

Adjustments shall be made in accordance with the manufacturer’s instructions.

13.5.2.2.2

A tag shall be attached to the valve indicating the date of the test, the flow, the inlet pressure, and the outlet pressure recorded during the test.

13.5.2.3

A partial flow test for pressure-reducing valves adequate to move the device from its seat shall be conducted annually.

13.5.3 Hose Rack Assembly Pressure-Regulating Devices.

13.5.3.1

All devices shall be inspected annually to verify the following:

•         (1) The handwheel is not missing or broken.

•         (2) No leaks are present.

13.5.3.2

A full flow test shall be conducted on each device at 5-year intervals and compared to previous test results.

13.5.3.2.1

Adjustments shall be made in accordance with the manufacturer’s instructions.

13.5.3.2.2

A tag shall be attached to the valve indicating the date of the test, the flow, the inlet pressure, and the outlet pressure recorded during the test.

13.5.3.3

A partial flow test for pressure-reducing valves adequate to move the device from its seat shall be conducted annually.

13.5.4 Master Pressure-Regulating Devices.

13.5.4.1

Devices shall be inspected weekly to verify that the devices are in the following condition:

•         (1) Normal downstream pressures are maintained.

•         (2) Normal supply pressure is maintained.

•         (3) Devices and associated trim components are free of physical damage and are   not leaking.

13.5.4.2

A partial flow test adequate to move the valve from its seat shall be conducted quarterly.

13.5.4.3

A full flow test shall be conducted on each valve annually and shall be compared to previous test results.

13.5.4.4

When valve adjustments are necessary, they shall be made in accordance with the manufacturer's instructions.

13.5.5 Pressure-Reducing Valves.

13.5.5.1

All pressure-reducing valves installed on fire protection systems not covered by 13.5.1, 13.5.2, 13.5.3, or 13.5.4 shall be inspected in accordance with 13.5.1.1.

13.5.5.2

All pressure-reducing valves installed on fire protection systems not covered by 13.5.1, 13.5.2, 13.5.3, or 13.5.4 shall be tested in accordance with 13.5.1.2.

13.5.6 Fire Pump Relief Valves.

13.5.6.1 Circulation Relief Valves.

13.5.6.1.1

Where installed, circulation relief valves shall be inspected on the same frequency as the no-flow (churn) test.

13.5.6.1.2

The inspection shall verify that water flows through the valve when the fire pump is operating at shutoff pressure (i.e., churn) to prevent the pump from overheating.

13.5.6.1.3

On completion of any fire pump test, the closure of the circulation relief valve shall be verified.

13.5.6.2 Main Pressure Relief Valve.

13.5.6.2.1

Where installed, main pressure relief valves shall be inspected during any fire pump test.

13.5.6.2.2

The inspection shall verify that the pressure downstream of the relief valve fittings in the fire pump discharge piping does not exceed the pressure for which the system components are rated.

13.5.6.2.3

During the annual fire pump flow test, the pressure relief valve shall be verified to be correctly adjusted and set to relieve at the correct pressure and to close below that pressure setting.

13.5.7 Maintenance.

All damaged or missing components noted during the inspections specified in 13.6.1 through 13.6.2.2 shall be repaired or replaced in accordance with the manufacturer’s instructions.

13.6 Hose Valves.

13.6.1 Inspection.

13.6.1.1

Hose valves shall be inspected quarterly to verify that the valves are in the following condition:

•         (1) Hose caps are in place and not damaged.

•         (2) Hose threads are not damaged.

•         (3) Valve handles are present and not damaged.

•         (4) Gaskets are not damaged or showing signs of deterioration.

•         (5) No leaks are present.

•         (6) Valves are not obstructed or otherwise not capable of normal operation.

13.6.1.2

Hose valves shall be inspected to ensure that hose caps are in place and not damaged.

13.6.1.3

Hose threads shall be inspected for damage.

13.6.1.4

Valve handles shall be present and not damaged.

13.6.1.5

Gaskets shall be inspected for damage or deterioration.

13.6.1.6

Hose valves shall be inspected for leaks.

13.6.1.7

Hose valves shall be inspected to ensure no obstructions are present.

13.6.1.8

Hose valves shall be inspected to ensure that restricting devices are present.

13.6.2 Testing.

13.6.2.1

Class I and Class III standpipe system hose valves shall be tested annually by fully opening and closing the valves.

13.6.2.1.1

Class I and Class III standpipe system hose valves that are difficult to operate or leak shall be repaired or replaced.

13.6.2.2

Hose valves on hose stations attached to sprinkler systems and Class II standpipe systems shall be tested every 3 years by opening and closing the valves.

13.6.2.2.1

Hose valves on hose stations attached to sprinkler systems and Class II standpipe systems that are difficult to operate or leak shall be repaired or replaced.

13.6.3 Maintenance.

Hose valves that do not operate smoothly or open fully shall be lubricated, repaired, or replaced.

13.7 Backflow Prevention Assemblies.

13.7.1 Inspection.

Inspection of backflow prevention assemblies shall be as described in 13.7.1.1 through 13.7.1.3.

13.7.1.1

Reduced-pressure assemblies and reduced-pressure detector assemblies shall be inspected weekly to ensure that the differential-sensing valve relief port is not continuously discharging.

13.7.1.2

After any testing or repair, an inspection by the property owner or designated representative shall be made to ensure that the system is in service and all isolation valves are in the normal open position and properly locked or electrically supervised.

13.7.1.3

Backflow prevention assemblies shall be inspected internally every 5 years to verify that all components operate correctly, move freely, and are in good condition.

13.7.2 Testing.

13.7.2.1

All backflow preventers installed in fire protection system piping shall be exercised annually by conducting a forward flow test at a minimum flow rate of the system demand.

13.7.2.1.1

Where water rationing is enforced during shortages lasting more than 1 year, an internal inspection of the backflow preventer to ensure the check valves will fully open shall be permitted in lieu of conducting the annual forward flow test.

13.7.2.1.2

The forward flow test shall not be required where annual fire pump testing causes the system flow rate to flow through the backflow preventer device.

13.7.2.2

Where hydrants or inside hose stations are located downstream of the backflow preventer, the forward flow test shall include hose stream demand.

13.7.2.3

Where connections do not permit verification of the forward flow test at the minimum flow rate of system demand, tests shall be conducted at the maximum flow rate possible.

13.7.3 Maintenance.

Maintenance of all backflow prevention assemblies shall be conducted by qualified personnel in accordance with the manufacturer’s instructions and the procedure and policies of the authority having jurisdiction.

13.8 Fire Department Connections.

13.8.1

Fire department connections shall be inspected quarterly to verify the following:

•         (1) Fire department connections are visible and accessible.

•         (2) Couplings or swivels are not damaged and rotate smoothly.

•         (3) Plugs or caps are in place and undamaged.

•         (4) Gaskets are in place.

•         (5) Identification signs are in place.

•         (6) Check valve is not leaking.

•         (7) Automatic drain valve is in place and operating properly.

•         (8) Fire department connection clapper(s) is in place and operating properly.

•         (9) Interior of the connection is inspected for obstructions.

•         (10) Visible piping supplying the fire department connection is undamaged.

13.8.2

Interior inspections shall be conducted annually if approved locking caps or locking plugs are installed.

13.8.3

Components shall be repaired or replaced as necessary in accordance with the manufacturer’s instructions.

13.8.4

Any obstructions that are present shall be removed.

13.8.5

The piping from the fire department connection to the fire department check valve shall be hydrostatically tested at 150 psi (10 bar) for 2 hours at least once every 5 years.

13.8.5.1

An acceptable test result shall be indicated by a pressure loss less than 5 psi (0.3 bar) and no visual signs of leakage.

13.8.6

Check valves shall be inspected internally in accordance with 13.4.2.1.

13.9 Automatic Detection Equipment.

13.9.1

Automatic detection equipment used to actuate water-based fire protection systems shall be inspected, tested, and maintained in accordance with NFPA 72.

13.9.2

Automatic detection equipment used to actuate water-based fire protection systems that is not covered by NFPA 72 shall be inspected, tested, and maintained to ensure that the detectors are in place, securely fastened, and protected from corrosion, weather, and mechanical damage and to ensure that the communication wiring, control panels, or pneumatic tubing system is functional.

13.10 Air Compressors and Nitrogen Generators.

13.10.1 General.

13.10.1.1

Air compressors and nitrogen generators dedicated to water-based fire protection systems shall be inspected, tested, and maintained in accordance with 13.10.2, 13.10.3, and 13.10.4.

13.10.1.2

Air compressors not dedicated to water-based fire protection systems shall be inspected, tested, and maintained in accordance with the manufacturer's instructions.

13.10.2 Inspection.

Air compressors and nitrogen generators dedicated to water-based fire protection systems shall be inspected monthly to verify the following:

•         (1) Air compressor or nitrogen generator is free of physical damage.

•         (2) Power wiring to the air compressor is intact and free of physical damage.

•         (3) Piping from the air compressor or nitrogen generator to the fire protection system             is intact and free of physical damage.

•         (4) The means of anchoring the air compressor or nitrogen generator to the structure             or to the system piping is secure, tight, and free of physical damage.

•         (5) Air compressors requiring oil have the required amount of oil in the oil reservoir.

13.10.3 Testing.

Air compressors or nitrogen generator dedicated to water-based fire protection systems shall be tested annually to verify the following:

•         (1) Air compressor or nitrogen generator operates as intended on the proper drop of   air pressure in the fire protection system.

•         (2) Air compressor or nitrogen generator restores normal supervisory pressure in the fire protection system in the required time frame.

•         (3) Air compressor does not overheat while running.

13.10.4 Maintenance.

13.10.4.1

Air compressors or nitrogen generators dedicated to water-based fire protection systems shall be maintained in accordance with the manufacturer's instructions.

13.10.4.2

Compressors requiring oil shall have the oil replaced on an annual basis unless the manufacturer's instructions require more frequent replacement.

13.11 Automatic Air Vents.

Automatic air vents shall be inspected annually from the floor level to verify they are free of physical damage and show no signs of leakage.

13.11.1

Strainers, filters, and screens shall be removed and inspected every 5 years for damaged or corroded parts.

13.11.2

When removed for inspection, strainers, filters, and screens shall be flushed until clear or replaced.

13.12 Component Testing Requirements.

13.12.2

Where the original installation standard is different from the cited standard, the use of the appropriate installing standard shall be permitted.

13.12.3

These actions shall not require a design review.