RV-2

High-pressure, low-capacity relief protection for instrumentation systems

The Welker RV-2 Relief Valve is designed for high-pressure, low-capacity instrumentation applications requiring dependable overpressure protection. With a 100–2000 psig spring range, stainless steel construction, and optional threaded port for discharge piping, the RV-2 helps protect downstream equipment from pressure excursions while supporting hazardous gas applications that require venting to a safe area. Compact and corrosion-resistant, the RV-2 provides reliable relief valve performance for natural gas, sampling, and instrumentation systems.

Where to Use

High-Pressure Instrumentation Protection

Overpressure protection for high-pressure, low-capacity gas or instrument applications.

Hazardous Gas Applications

Optional discharge piping connection supports venting gases to a safe area.

Resources

RV-2 IOM RV-2CP IOM

100–2000 psig Spring Range

Supports high-pressure relief applications.

Stainless Steel Construction

Provides corrosion resistance and improved longevity.

Optional Threaded Port for Discharge Piping

Supports hazardous gas applications that require venting to a safe location.

	RV-2
Materials of Construction	316/316L Stainless Steel, FFKM, FKM
Materials of Construction	(Others Available)
Maximum Allowable Inlet Pressure	5000 psig (344.7 barg)
Temperature Range	-20 °F to 120 °F (-28.8 °C to 48.8 °C)
Temperature Range	Temperature Range Might Vary Based on Seal Material Selection
Spring Range Options	100 psig up to 2000 psig (6.8–137.8 barg)
Flow Rates	C_v = .038
Flow Rates	Full Flow Accomplished at 150% Over Set Pressure
Connections	Inlet: ¼" MNPT (Standard) or ⅛" MNPT
Connections	Outlet: Atmospheric, ¼" MNPT
Approximate Dimensions	3¼" x ¾" x ¾" (L x W x H)
Approximate Weight	½ lb
Maintenance Schedule	Every 12 Months
Maintenance Schedule	Severe Service, Dirty Conditions, Excessive Usage: More Frequently
Options	Pre-Set Relief

RV-2

Where to Use

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