osha air compressor safety valve brands

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.

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.

• 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.

• 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.

• 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.

Thank you for your letter dated January 31 concerning your constituent, Mr. James Lyle McCloy II, President of Compressed Air Parts Company. Mr. McCloy is concerned about the lack of enforcement by the Occupational Safety and Health Administration (OSHA) of its rules requiring safety check valves on compressed air equipment. I apologize for the delay of this response.

As Mr. Roy Gurnham of my staff discussed with Mr. Mark Staudohar of your office in mid-February when he called to explain we could not meet with Mr. McCloy at the time, OSHA continues to recognize the need for safety check valves and is concerned that accidents have occurred because such valves were not provided as required. We will remind our compliance officers of the importance of this provision and that their inspections should include a review of such equipment as appropriate.

As you may be aware, the State of Arizona is responsible for occupational safety and health enforcement within the State under a plan approved and monitored by Federal OSHA. Under its plan, Arizona adopts standards identical to those promulgated by Federal OSHA and utilizes equivalent enforcement procedures. If your constituent wishes to discuss safety and health enforcement in Arizona, we suggest that he contact the Arizona industrial Commission at the following address:

The enclosed information is sent for your consideration. Please investigate this matter and forward to me the information for response to my constituent, Mr. James Lyle McCloy II, President of Compressed Air Parts Company.

Introducing our product in mid 1972, with several other manufacturers, sales were quite brisk and the Department of Labor was very active insuring compliance. Since early 1976 enforcement has been very `spotty". As of this time only ourselves and one other manufacturer are still providing valves to meet Federal Regulations. Fortunately we have been the primary source.

Recently we were dismissed from a One Million Dollar ($1,000,000) product liability suit in which it was determined that the air compressor in use was not equipped with a safety check valve as required. This incident took place on a Federally funded Interstate bridge repair contract. Also, there is currently a multi-million suit concerning the lack of a safety check valve (actually there was a valve on the compressor but was removed for unknown reasons). In that case a worker has a severe head injury and has been in a nursing home for two years and cannot recognize his family.

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OSHA valve is a safety device that shuts off air flow to hose in case of excess pressure. Provides safety to the operator and surroundings. Made of heavy-duty steel. Use with 3/4’’ diameter hoses and 185-210 cubic feet per minute (CFM) of air pressure.

New replacement air compressor pressure safety relief valves. Using the correct one for your application is critical for safety. If you need help picking the right one, please call us for assistance.

ISO 9001:2000 certified worldwide manufacturer & distributor of OSHA conforming compressed air safety lockout valves. Specifications include ambient & media temperature ranging from 40 degree F to 175 degree F, nitrile elastomers, compressed air fluid media, inlet pressure up to 150 psig, zinc plated steel screws, acetal slides & valve colors including yellow, red. Services include contract manufacturing, CNC machining, metal treatment, injection molding, painting, assembly, sonic welding, inspection, packaging, labeling & shipping. JIT delivery. Seven year warranty on products.

The OSHA Safety Standard Regulation 29CFR CHXVII Paragraph 1926.302(b)(7) states:   All hoses exceeding 1/2-inch inside diameter shall have a safety device at the source of supply or branch line to reduce pressure in case of hose failure.

Prevent dangerous air hose whips and accidents.   Protect your most important assets: Your employees and their equipment.   OSHA COMPRESSED AIR SAFETY SHUT-OFF VALVESoffers simple but efficient protection to pneumatic systems in the event of a broken compressed air hose or pipe.

OSHA says reduce your slips, trips and falls. Slips, trips and falls constitute the majority of general industry accidents, which cause 15% of all accidental deaths, and are second only to motor vehicles as a cause of fatalities. The OSHA standard for walking and working surfaces apply to all permanent places of employment, except where only domestic, mining, or agricultural work is performed.www.osha.gov

Consider adding reels to increase safety & efficiency with your electrical cords, welding cables, air hose, oil, grease, liquid/water or fuel hoses.  This could be one of your most effective equipment additions you’ll ever make…as well as one of the safest!

Provide a Safer Work EnvironmentHose reels decrease you chances of injuries from tripping hazards.  Reduce accidents and insurance expense:  Slips, trips and falls are the leading cause of work stoppage in industry. Reels can help you meet OSHA Safety Requirements.

Reels are used to transfer air, water, motor oil, transmission fluid, grease, gear oil, anti-freeze, diesel fuels, welding gases, fuel oil, liquid pesticides, fertilizers, detergents, hydraulic oils, cutting oils, printing inks, solvents, chemicals, and blacktop sealers.

Probably one of the largest uses of hose reels is for Compressed Air. Compressed air is clean, readily available, and simple to use. As a result, compressed air is often chosen for applications for which other energy sources are more economical.  Inappropriate uses of compressed air include any application that can be done more effectively or more efficiently by a method other than compressed air.

Don’t WASTE your Compressed Air. Check your facility for wasteful and perhaps even unsafe uses of compressed air. Bottom Line:  Invest in durable, quality reels that make hoses, cords and cables more productive, keep them easily accessible and make them last longer.

____ Are safety chains or other suitable locking devices used at couplings of high pressure hose lines where a connection failure would create a hazard?

____ Is it prohibited to use compressed air to clean up or move combustible dust, if such action could cause the dust to be suspended in the air and cause a fire or explosion?

AgSOHeat Illness Prevention, OutdoorTransportation of Agri-Products, Construction & other Heavy Materials,Exception, Operators in Air-conditioned Vehicles

COMPRESSED AIR SAFETY ORDERS, PRESSURIZED WORKSITE OPERATIONSDecompression Tables, Per U.S. Navy Diving ManualUse of Oxygen Breathing Gas System during Decompression

CONSTRUCTION SAFETY ORDERSHeat Illness Prevention, OutdoorTransportation of Agri-Products, Construction & other Heavy Materials,Exception, Operators in Air-conditioned VehiclesGISO, §3395(a)(2)(E)

DUSTS, FUMES, MISTS, VAPORS & GASES, per GISOWelding, Brazing & Cutting, Protective EquipmentVentilation & Personal ProtectionToxic Substances Used in Open Air

FLAMMABLE LIQUIDS, GASES & VAPORSElectrical Equipment in Classified SpacePositive Pressure, With Make-up AirPressurizing or purging of classified areas

GAS & OIL WELLS, Drilling & ProductionHazardous AreasTransfer of Flammable / Combustible LiquidsCompressed Air, Use Prohibited for TanksExceptions listedPSO-D&P, §6525(a)

GAS & OIL WELLS, Fire Hazard ControlTransfer of Flammable / Combustible LiquidsCompressed Air, Use Prohibited for TanksExceptions listedPSO-D&P, §6525(a)

HAZARDOUS AREAS, Subject to PSO-D&PTransfer of Flammable / Combustible LiquidsCompressed Air, Use Prohibited for TanksExceptions listedPSO-D&P, §6525(a)

HEAT ILLNESS PREVENTION, OutdoorTransportation of Agri-Products, Construction & other Heavy Materials, Subject to StandardException, Operators in Air-conditioned Vehicles

HOT WEATHER, Heat Illness Prevention, OutdoorTransportation of Agri-Products, Construction & other Heavy Materials, Subject to StandardException, Operators in Air-conditioned Vehicles

LANDSCAPINGEmergency Response ProceduresTransportation of Agri-Products, Construction & other Heavy Materials,Exception, Operators in Air-conditioned Vehicles

OIL & GAS WELLS, Drilling & ProductionHazardous AreasTransfer of Flammable / Combustible LiquidsCompressed Air, Use Prohibited for TanksExceptions listedPSO-D&P, §6525(a)

OIL & GAS WELLS, Drilling & ProductionHeat Illness Prevention, OutdoorTransportation of Agri-Products, Construction & Other Heavy Materials,Exception, Operators in Air-conditioned Vehicles

OIL & GAS WELLS, Fire Hazard ControlTransfer of Flammable / Combustible LiquidsCompressed Air, Use Prohibited for TanksExceptions listedPSO-D&P, §6525(a)

PRESSURIZED WORKSITE OPERATIONS, COMPRESSED AIR SAFETY ORDERSDecompression Tables, Per U.S. Navy Diving ManualUse of Oxygen Breathing Gas System during Decompression

TRANSPORTATION, MaterialsTransportation of Agri-Products, Construction & other Heavy Materials, Subject to StandardException, Operators in Air-conditioned Vehicles

TUNNELING OPERATIONSPressurized Worksite Operations, Compressed Air.Decompression Tables, Per U.S. Navy Diving ManualUse of Oxygen Breathing Gas System during Decompression

WEATHER, Heat Illness Prevention, OutdoorTransportation of Agri-Products, Construction & other Heavy Materials, Subject to StandardException, Operators in Air-conditioned VehiclesGISO, §3395(a)(2)(E)

WELLS, GAS & OIL, Drilling & ProductionHazardous AreasTransfer of Flammable / Combustible LiquidsCompressed Air, Use Prohibited for TanksExceptions listedPSO-D&P, §6525(a)

Is it prohibited to use compressed air to clean up or move combustible dust if such action could cause the dust to be suspended in the air and cause a fire or explosion hazard?

Pressure relief devices are used to provide a means of venting excess pressure which could rupture a boiler or pressure vessel. A pressure relief device is the last line of defense for safety. If all other safety devices or operating controls fail, the pressure relief device must be capable of venting excess pressure.

Safety Valve – This device is typically used for steam or vapor service. It operates automatically with a full-opening pop action and recloses when the pressure drops to a value consistent with the blowdown requirements prescribed by the applicable governing code or standard.

Relief Valve – This device is typically used for liquid service. It operates automatically by opening farther as the pressure increases beyond the initial opening pressure and recloses when the pressure drops below the opening pressure.

Safety Relief Valve – This device includes the operating characteristics of both a safety valve and a relief valve and may be used in either application.

Temperature and Pressure Safety Relief Valve – This device is typically used on potable water heaters. In addition to its pressure-relief function, it also includes a temperature-sensing element which causes the device to open at a predetermined temperature regardless of pressure. The set temperature on these devices is usually 210°F.

Drain holes in the device body and discharge piping, when applicable, must be open to allow drainage of liquids from over the device disk on spring loaded valves. Any liquid allowed to remain on top of the device disk can adversely affect the operating characteristics of the device.

Ensure the device still has the device manufacturer"s seals intact. These seals can be in the form of wire through a drilled hole with a soft metal button, such as lead, crimped on the wire, or removable parts may be stake punched or crimped to inhibit accidental movement. Any evidence of the seal mechanism being broken or destroyed could indicate tampering. If this is found, the inspector should require replacement of the device or repair by a qualified organization.

Instruct the owner or owner"s representative to lift the test lever, if so equipped, on spring-loaded devices. ASME BPV Code Section IV devices can have the test levers lifted without pressure in the boiler. All other devices must have at least 75% of the device set pressure under the device disk prior to lifting the test lever. If the device is found to be stuck in a closed position, the equipment should be immediately removed from service until such time the device can be replaced or repaired.

The small pressure relief devices found on many air compressor vessels have a ring inserted through a drilled hole on the end of the device stem. These are tested by pulling the stem straight out and then releasing. The discharge openings in this type of device are holes drilled around the periphery of the device. These holes often get filled with oily dust and grit which can cause eye damage when the device is tested. A rag, loosely wrapped around the device when testing, can help prevent personal injury from the dust and grit.

(a) All safety and relief valves for use on pressure vessels or piping systems shall be designed to meet the protection and service requirements for which they are intended and shall be set to relieve at a pressure which does not exceed the “maximum allowable working pressure” of the pressure vessel or piping system. Relief valves are not required to have huddling chambers for other than steam service. In addition, safety valves used on vessels in which steam is generated shall meet § 52.01-120 of this subchapter except § 52.01-120(a)(9). For steam service below 206 kPa (30 psig), bodies of safety valves may be made of cast iron. Safety relief valves used in liquefied compressed gas service shall meet subpart 162.017 or 162.018 in subchapter Q (Specifications) of this chapter as appropriate.

(b) Pilot-valve control or other indirect operation of safety valves is not permitted unless the design is such that the main unloading valve will open automatically at not over the set pressure and will discharge its full rated capacity if some essential part of the pilot or auxiliary device should fail. All other safety and relief valves shall be of the direct spring loaded type.

(c) Safety and relief valves for steam or air service shall be provided with a substantial lifting device so that the disk can be lifted from its seat when the pressure in the vessel is 75 percent of that at which the valve is set to blow.

(d) Safety and relief valves for service other than steam and air need not be provided with a lifting device although a lifting device is desirable if the vapors are such that their release will not create a hazard.

(e) If the design of a safety or relief valve is such that liquid can collect on the discharge side of the disk, the valve shall be equipped with a drain at the lowest point where liquid can collect (for installation, see UG-134 of section VIII of section VIII of the ASME Boiler and Pressure Vessel Code (incorporated by reference; see 46 CFR 54.01-1).

(f) Cast iron may be employed in the construction of relief valves for pressures not exceeding 125 pounds per square inch and temperatures not exceeding 450 °F. Seats or disks of cast iron are prohibited.

(g) The spring in a relief valve in service for pressures up to and including 250 pounds per square inch shall not be reset for any pressure more than 10 percent above or 10 percent below that for which the relief valve is marked. For higher pressures, the spring shall not be reset for any pressure more than 5 percent above or 5 percent below that for which the relief valve is marked.

(h) The rated relieving capacity of safety and relief valves for use on pressure vessels shall be based on actual flow test data and the capacity shall be certified by the manufacturer in accordance with one of the following:

(2) 110 percent of the valve set pressure for valves rated in accordance with UG-131 of section VIII of section VIII of the ASME Boiler and Pressure Vessel Code.