Generant LCV-250B-FS-022 1/4″ Brass Liquid Cylinder Relief Valve 22 PSI O2

Overview

Generant confirms that 250B identifies the 1/4″ male NPT brass configuration and FS identifies the fluorosilicone seal used for 22–49 PSIG set pressures.

Key Features

• 22 PSIG factory set pressure
• Specifically designed for DOT 4L cryogenic liquid cylinders
• 1/4″ Male NPT brass construction
• Fluorosilicone seal
• Generant Dirt Guard poppet design
• Designed to reduce the disruptive “pop” associated with conventional relief valves
• Helps maintain cylinder pressure while minimizing product loss
• Factory preset and 100% tested
• Cleaned and packaged for oxygen service
• Meets applicable industry/regulatory flow-capacity requirements

Flow Capacity

At the 22 PSIG set pressure, published Generant flow data shows approximately:

11.8 SCFM N₂ at 110% of set pressure

12.4 SCFM N₂ at 120% of set pressure

Brand	Generant
MPN	LCV-250B-FS-022
Series	LCV
Product Type	Liquid Cylinder Pressure Relief Valve
Application	DOT 4L Cryogenic Liquid Cylinders
Body Material	Brass, ASTM B16
Connection	1/4″ Male NPT
Outlet	Vent to Atmosphere
Seal Material	Fluorosilicone (FS)
Factory Set Pressure	22 PSIG
LCV Set Pressure Range	22–500 PSIG
Set Pressure Tolerance at 22 PSI	±5%
Leakage	Zero leakage to 95% of set pressure
Reseat Pressure	Approx. 90% of set pressure
FS Temperature Range	-85°F to 350°F (-65°C to 176°C)
Lubricant	Krytox
Oxygen Service	O2 Cleaned & Packaged
Valve Design	Direct-acting, spring-loaded
Adjustment	Factory preset / permanently secured

Product details

Part / SKU	LCV-250B-FS-022

Package includes

• Generant LCV-250B-FS-022 1/4" Brass Liquid Cylinder Relief Valve 22 PSI O2

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.