Armstrong International Datasheets for Pressure Relief Valves

Pressure relief valves are self-actuated safety valves designed to relieve excess pressure upstream from the line.
Pressure Relief Valves: Learn more

Product Name Notes
Pressure Reducing Valve -- GP-2000K-1
Pressure Reducing Valve -- GP-2000K-3
Pressure Reducing Valve -- GP-2000K-6
A high-performance externally air-piloted pressure-reducing valve, the GP-2000K-1/GP-2000K-3/GP-20000K-6 is an ideal choice when set-point changes are frequent and access to the PRV is difficult. The valve comes totally assembled and...
Pressure Reducing Valve -- GD-24 An industrial-grade valve for water systems, the GD-24 is lightweight, compact and economical. The valve comes with screwed connections and will mount in any position. It requires no external sensing...
Inline Check Valves Armstrong’s inline check valves are ideally suited for refrigerant flow control applications. The valves open wide for flow. These valves close quickly and are reliable when flow reversal occurs. The...
Stop Valves Armstrong’s refrigeration stop valves have a rugged design for industrial use. These valves are equipped with union nut for ease of replacement and provided with weldable nipple. Features: Port size:...
Safety Relief Valves Armstrong’s safety relief valves for refrigeration service are designed to provide emergency relief from excessive pressure in refrigerant containing vessels. These tamper-resistant valves are accurately set and sealed by qualified...
Weld-in Line Stop Valves Armstrong’s SSW and SBW Series are designed and constructed for low pressure drop refrigerant shut-off valves. The stop valves are welded directly to steel piping, thereby eliminating potential leaky flanges...
Stop Check Valves Low pressure drop refrigerant stop check valves are butt-weldable directly to steel piping, thereby eliminating potential leaky flanges or threaded joints and simplifying installation. The important features of these valves...
Strainer Valves Refrigeration strainers are designed for either liquid or suction line application. They provide free flow with negligible pressure drop and can be used for a variety of liquids. Armstrong strainers...
Dual Relief Valve Manifold The dual relief valve manifold meets the ANSI/ASHRAE 15-1994 safety requirements for mechanical refrigeration in which pressure vessels that have 10 cubic feet or more of internal gross volume shall...
Pressure Reducing Valve -- AF-10
Pressure Reducing Valve -- GD-10
Pressure Reducing Valve -- GD-10F
The GD-10/10F is a lightweight direct-acting diaphragm valve used primarily for pneumatic tool air supply and non-hazardous gas regulation. Screwed connections make it easy to support in position without external...
Pressure Reducing Valve -- GD-20R The GD-20 offers high capacity and highly accurate control with a large, cupped diaphragm for a long stroke. Compact and rugged, the GD-20's composition valve and bronze seat mean high...
Pressure Reducing Valve -- GD-200
Pressure Reducing Valve -- GD-200H
The GD-200/200H valves offer high capacity and highly accurate control, with a large, cupped diaphragm for a long stroke. Compact and rugged, the GD-200’s composition valve and bronze metal seat...
Pressure Reducing Valve -- GD-2000K The GD-2000K is an ideal choice when set-point changes are frequent, access to the valve is difficult and steam quality is poor. The GD-2000K comes with either NPT or flanged...
Pressure Reducing Valve -- GD-30
Pressure Reducing Valve -- GD-30S
The GD-30 is a compact, high-performance direct-acting valve. Economical to buy and use, it is ideal for those low- to moderate-flow applications where accuracy of +/- 10% is acceptable. The...
Pressure Reducing Valve -- GD-45 The GD-45 is a compact, high-performance direct-acting valve. Inexpensive to buy and use, it is ideal for those moderate-flow applications that do not justify the higher cost of pilot-controlled valves.
Pressure Reducing Valve -- GD-6
Pressure Reducing Valve -- GD-6N
The GD-6N and GD-6 are compact, direct-acting diaphragm valves ideal for low-flow applications, including laundry/dry-cleaning equipment, hospital equipment, tire/plastic molds and food processing. Lightweight and compact, the valves require no...
Pressure Reducing Valve -- GP-1000
Pressure Reducing Valve -- GP-1000A
Pressure Reducing Valve -- GP-1000AS
Pressure Reducing Valve -- GP-1000SS
The GP-1000 Series valves are pilot-controlled for accurate regulation of pressure under widely ranging flow. The internal-pilot design eliminates external components and piping. Internally piloted GP Series valves are capable...
Pressure Reducing Valve -- GP-2000 The GP-2000 is a high-performance, externally piloted reducing valve for large-capacity requirements. Typical use is on intermittent service, including applications such as heat exchangers, steam coils, rotating dryers, process equipment...
Pressure Reducing Valve -- GP-2000CS The GP-2000CS is a high-performance, externally piloted reducing valve for large-capacity requirements. Typical use is on intermittent service, including applications such as heat exchangers, steam coils, rotating dryers, process equipment...
Pressure Reducing Valve -- GP-2000L The GP-2000L is a high-performance, externally piloted reducing valve for large-capacity and low inlet pressure requirements. The GP-2000L is reliable and accurate (+/-1% of pressure set point from 5% to...
Back Pressure Valve -- GP-2000R The GP-2000R is a high-performance externally piloted throttling back-pressure valve for large capacity applications. Typical applications would include systems using flash steam for low-pressure heating or processes. The GP-2000R valve...
Hand Expansion Valves The Hand Expansion Valves SEV series features a calibrated, adjustable seat nut flow regulating valve. Expansion valves are ideal for metering of flashing expansion of liquid refrigerants. The slotted seat...
Solenoid Valves The primary purpose of an electrically operated solenoid valve is to automatically control the flow of fluids, liquids and gasses. Armstrong’s SFA series solenoid valves may be applied on a...