The Series LCV Liquid Cylinder Pressure Control/Relief Valve is designed exclusively for use on DOT 4L Cryogenic Liquid Cylinders. The LCV dramatically reduces the noise associated with traditional cylinder relief device discharge.
Under normal operating conditions, the LCV optimizes cylinder performance by venting only what is required to maintain cylinder pressure in a tight band. Incorporates the customer proven "Dirt Guard" poppet. Complies with OSHA sound level regulations and exceeds industry and regulatory flow capacity requirements.
- Designed exclusively for use on DOT 4L Cryogenic Liquid Cylinders
- Eliminates the disruptive "pop" historically associated with traditional cylinder relief devices
- Incorporates the customer proven "Dirt Guard" poppet
- Accurately maintains and controls cylinder pressure, minimizing product loss
- Exceeds industry and regulatory flow capacity requirements
- Complies with OSHA sound level regulations
- Extensively field qualified — OEM Approved & Endorsed
- Cleaned and Packaged for Oxygen Service
- Nominal Set Pressure Range: 22 to 500 PSIG (1.5 to 34.5 bar)
- Factory Set Tolerance:
- Set Pressure ≤ 28.90 PSI: ± 5%
- Set Pressure 29.00 – 48.30 PSI: ± 1.45 PSI
- Set Pressure ≥ 48.40 PSI: ± 3%
- Zero Leakage to 95% of Set Pressure
- Reseat: 90% of Set Pressure
- Temperature Rating: -320° to 350°F (-196° to 176°C) — based on seal material
- Connection: 1/4" NPT Male (Brass), with Weep Hole
- Seal Materials:
- Fluorosilicone (FS): 22–49 PSI, -65° to 350°F
- PCTFE/Kel-F (K): 50–500 PSI, -320° to 165°F
- Tolerance specifications per EN ISO 4126-1
