Armstrong International Datasheets for Check Valves

Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. 
Check Valves: Learn more

Product Name Notes
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...
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...