OSHA Air Compressor Safety Valves | Compressor Check Valves

Two Reasons Why you need an OSHA Compliant Safety Valve

1. Prevents Dangerous Hose Whips:

Protects your most important assets: Your employees and their equipment!
COMPRESSED AIR SAFETY SHUT-OFF VALVES offer simple but efficient protection to pneumatic (compressed air) systems in the event of a broken compressed air hose. It is a very dangerous situation when an air hose breaks and causes the hose to whip around.

2. Required by OSHA:

OSHA air compressor safety STANDARD regulation:
Conforms to OSHA regulation 1926.302 (b) (7) requiring a safety device at the source of the air supply and at branch air lines

HOW THE COMPRESSED AIR SAFETY SHUT-OFF VALVE WORKS:
The OSHA compliant air compressor safety valves (also called flow check valves) immediately shut off the air supply should the volume of air flowing through the valve exceed a preset value. (For example: when an air hose breaks) The value on the compressor check valves is preset at the factory and is set to allow normal air consumption when using air tools. Should the air consumption exceeds the set value, or the air-line is severed, then the internal piston instantly shuts off the main flow.

The compressor check valves will automatically reset after repairs are made because of an integral bleed hole that allows some air to flow though. This enables the line pressure to automatically reset the OSHA compliant air compressor safety valve once the main break is repaired.

Here is How to choose the
correct OSHA compliant
Compressed Air Safety Shut-Off Valves
you need to order for your applications.
(click here to download detailed PDF instructions)

OSHA Flow Check Safety Valves

OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVES offer simple but efficient protection to pneumatic (compressed air) systems in the event of a broken compressed air hose. And - they are required by OSHA.

Select the compressed air check valve you need

1" OSHA Flow Check Safety Valve - 280-320 CFM

1" OSHA Flow Check Safety Valve - 165-195 CFM

1" OSHA Flow Check Safety Valve - 220-260 CFM

1" OSHA Flow Check Safety Valve - 310-340 CFM

1-1/2" OSHA Flow Check Safety Valve - 640-720 CFM

1-1/2" OSHA Flow Check Safety Valve - 300-360 CFM

1-1/2" OSHA Flow Check Safety Valve - 470-530 CFM

1-1/2" OSHA Flow Check Safety Valve - 564-602 CFM

1-1/2" OSHA Flow Check Safety Valve - 750-830 CFM

1-1/4" OSHA Flow Check Safety Valve - 440-500 CFM

1-1/4" OSHA Flow Check Safety Valve - 300-340 CFM

1-1/4" OSHA Flow Check Safety Valve -260-290 CFM

1-1/4" OSHA Flow Check Valve-570-630 CFM

1/2" OSHA Flow Check Safety Valve - 96 CFM

1/2" OSHA Flow Check Safety Valve - 78 CFM

1/4" OSHA Flow Check Safety Valve - 29 CFM

2" OSHA Flow Check Safety Valve - 1100-1200 CFM

2" OSHA Flow Check Safety Valve - 510-590 CFM

2" OSHA Flow Check Safety Valve - 725-825 CFM

2" OSHA Flow Check Safety Valve - 900-1050 CFM

3" OSHA Flow Check Safety Valve - 1200-1400 CFM

3" OSHA Flow Check Safety Valve - 2400-2700 CFM

3" OSHA Flow Check Safety Valve -2850-3050 CFM

3/4" OSHA Flow Check Safety Valve - 160-180 CFM

3/4" OSHA Flow Check Safety Valve - 112-128 CFM

3/4" OSHA Flow Check Safety Valve - 72-88 CFM

3/4" OSHA Flow Check Safety Valve - 92-108 CFM

3/4" OSHA Flow Check Safety Valve- 132-148 CFM

3/4" OSHA Flow Check Safety Valve-180-200 CFM

3/8" OSHA Flow Check Safety Valve - 65 CFM

3/8" OSHA Flow Check Safety Valve - 36 CFM

3/8' OSHA Flow Check Safety Valve - 47 CFM

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Choose & Install the Correct Air Safety Shut-Off Valve

INSTALLATION:
An OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVES should be placed immediately after the air control shut off valve and before the hose on a compressor, and after each discharge port that a hose is connected to.

OPERATION:
Before starting the compressor the air control valve should be closed completely. When the compressor unloads, open the air shut off control valve very slowly. Full port ball valves tend to work better than gate or butterfly type valves.

The air shut off control valve must be fully open for the OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVES to work. Some portable air compressor manufacturers recommend start-up with the air control valve slightly open. In this case you may have to close the valve and reopen it slowly to the full open position, or wait for the safety shut-off valve to reset itself.

If the OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVES fails to operate despite meeting all condi-tions, check the hose line for obstructions or a hose mender restricting normal air flow.

VERIFYING OPERATIONS:

• Install OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVES following the instructions supplied.

• Connect tool or equipment to air-line hose to complete circuit to the air line

• Open control valve fully to pressurize air hose.

• Switch on equipment or tools to ensure they are working properly.

• If tool or equipment starts and runs satisfactorily, stop operation and depressurize hose.

• Disconnect hose from tool or circuit and SECURE HOSE END.

• Turn on air supply slowly (to avoid tripping OSHA safety valve). Prior to fully reaching operation conditions, the OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVES should suddenly activate and stop air flow.

• A slight air flow will remain as part of the automatic re-set function.

• If the OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVE is not activated the unit should be disconnected and the lower flow range OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVES should be used. This means you need to use a different valve with a lower scfm range.

OPERATING PRESSURE:

• Maximum 250 PSIG

• Minimum burst pressure 1200 to 2000 PSIG

• Drop pressure at shut-off flow. 2 TO 5 PSIG

OPERATING TEMPERATURE:

• –40°F* to +250°F

• At temperatures below 40°F ensure that OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVES are not subject to icy conditions which may prevent proper functioning.

Download these directions & chart to ensure you order the correct OSHA Saftey Shut-Off Valve

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