Pressure Relief Device – Spring Orient-F80M

Flow Safe, Inc.

Available in two primary configurations: the F84M (plastic-seated for higher pressures) and the F85M (elastomer-seated for superior sealing at lower pressures).
Features an adjustable blowdown ring that allows users to control the reseat pressure, typically up to 20%.
Designed to reseat bubble-tight to approximately 90-93% of the set point for valves set above 25 psig.
Ideal for applications with space constraints or where small orifice sizes are required.
: Available with ASME-UV stamp for set pressures at or above 15 psig.

The FLOW SAFE F80M Series safety valve is a direct-acting spring-loaded pressure relief valve, suitable for gas service. The Type F84M is plastic-seated and the F85M is elastomer-seated. Orifice sizes are available in -1, -2, -3, and -4 with set pressures from 15 to 15,000 psig (depending on the orifice size). Blowdown, up to approx. 20%, is readily controlled by adjusting the blowdown ring. FLOW SAFE valves set above 25 psig are typically shipped with 7-10% blowdown, allowing the valve to reseat bubble tight to approximately 90-93% of set point. Valves set at or below 25 psig typically have 4 to 5 psig blowdown.

Use Cases

High-Pressure Gas Systems:
Critical Leak Prevention:
Audible Warning Integration
Harsh Environments
Hydrogen refueling station storage tanks
High-pressure hydrogen tube trailers
CNG and hydrogen vehicle storage cylinders
Fuel cell power plant pressure regulation
High-pressure laboratory gas systems
Compressor discharge relief
Aerospace ground support equipment
Nitrogen, helium, and argon high-pressure storage
Cryogenic gas vaporization systems

Capabilities

Set Pressure Range 15 to 10,313 psig (up to 15,000 psig for specific orifices)
Orifice Sizes Available in -1, -2, -3, and -4
Blowdown Control Typically 7-10% (adjustable up to 20%)

Flow Safe, Inc. Flow Safe is a manufacturer of high-quality pressure relief valves and accessories, crucial for safe hydrogen handling in the energy transition. It operates in New York and Texas. Flow Safe supports the hydrogen economy by ensuring safe, efficient hydrogen transport and storage.

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