Liquid Cylinder Accessories (LCV)
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LIQUID CYLINDER VALVE 1/4" NPT 22 - 500 Psig (1.5 – 34.5 Bar) Description 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. In the event that circumstances demand, the LCV has adequate flow capacity to ensure safety, meeting all industry and regulatory requirements. Designed exclusively for use on DOT 4L Liquid Cylinders Eliminates 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 and endorsed Cleaned and Packaged for Oxygen Service Technical Data Nominal Set Pressure Range: 22 - 500 Psig (1.5 to 34.5 Bar) Factory Set Tolerance*: Set Pressure ≥ 72.5 PSI, ± 3% Set Pressure < 72.5 PSI, ± 2.175 PSI *tolerance specifications per EN ISO 4126-1. Zero Leakage to 95% of Set Pressure Reseat: 90% of set pressure Temperature Rating: -320º to 350º F (-196º C to 176º C) based on seal material (see How To Order) ® Lubricant: Krytox Materials of Construction Component Valve, Body, Poppet, Spring Retainer, and Screen Spring Seal Label 302 (ASTM A313) or 17-4PH (ASTM A564) Flourosilicone PCTFE 22 to 49 Psig 50 to 500 Psig (1.5 to 3.4 Bar) (3.5 to 34.5 Bar) .004 Thick Mylar SA.SL.LCV001.D.2234

LIQUID CYLINDER VALVE Flow Data Set Pressure (PSIG) 22 100 230 350 500 How To Order LCV – 250B – K – 230 SERIES LCV - Vent to Atmosphere NOMINAL SET PRESSURE 22-500 Psig (1.5 – 34.5 Bar) PIPE SIZE 250B - 1/4" Male NPT (Brass) SEAL MATERIAL FS – Fluorosilicone for 22-49 Psig (-85° to 350° F (-65° to 176°C)) K – PCTFE for Above 50 Psig (-320° to 165° F (-196° to 74° C)) PROPER COMPONENT SELECTION – When specifying a component, the total system design must be considered to ensure safe and trouble-free performance. Intended component function, materials compatibility, pressure ratings,...