Description

The Generant Series Brass CRV, Cryogenic Relief Valve is a spring reference over pressure protection device. The CRV incorporates Generant’s exclusive “Dirt Guard” feature which increases the valves ability to tolerate particulate contamination. This device is ideally suited for use as a “Blocked Line Safety” in cryogenic systems. The CRV is supplied cleaned and packaged for oxygen service. Relief pressure can not be altered or adjusted in the field. Seat and poppet geometry combined with optimized spring ranges provide high flow rates with minimum pressure accumulation. The Generant Cryogenic Relief Valve has a compact design and availability of a variety of inlet and outlet configurations reduces size and piping requirements. Relief pressure can be discharged to atmosphere or to a downstream connection. The CRV is supplied with Flourosilicone seals for set pressures from 10 – 49 Psig (0.7 – 3.4 Bar) and PCTFE seals for set pressures greater then 50 – 750 Psig (3.5 – 51.7 Bar)

FEATURES

• Available CE marked in accordance to the requirements of the PED

• Exclusive “Dirt Guard” poppet incorporates screen to extend valve and reliability

• High Flow Capacity and Excellent Reseat Performance

• Supplied Factory Preset Set and Permanently Locked for Tamper Proof Service

• Discharge to Atmosphere or a Wide Varity of Inline Piping Configurations

• Optional Deflector Cap available for diverting exhausted gas

• 100% Factory Tested for Leakage, Crack and Reseal

• Cleaned and Packaged for Oxygen Service

*Cryogenic Relief Valve (CRV) Technical Data*
Nominal Set Pressure Range (Not Adjustable, Pressure Depends on Valve Selection)	10 – 750 Psig (0.7 to 51.7 Bar)
Factory Set Tolerance* tolerance specifications per EN ISO 4126-1*	Set Pressure ≤ 28.90 Psig, ± 5%
	Set Pressure 29.00 – 48.30 PSI, ± 1.45 Psig
	Set Pressure ≥ 48.40 Psig, ± 3%
Zero Leakage to	95% of Set Pressure
Full Rated Flow @ 110% of Set Pressure	Unaffected by up to 10% Back Pressure
Materials of Construction	Brass Body Construction
Reseat	90% of set pressure
Reseat	85% for PCTFE seal set below 100 Psig (6.9 Bar)
Temperature Rating	-320º to 350ºF (-196ºC to 176ºC) based on seal material
Temperature Rating	Lubricant: Krytox®

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Warranty

Fittings and steel do NOT carry any warranty. Fittings and steel items with a defect or other issue must be identified within 30 days of arrival and USA Lab MUST be contacted. After 30 days, there will be no replacements sent for fittings or steel items with a defect or issue. Cross threading, misuse, improper storage, or improper care of fittings/steel are considered user error and are not covered under warranty.