Check Valves
Check Valve for Ammonia Service supports reverse-flow control. Selection focuses on the sealing arrangement, fluid conditions, piping interfaces and operating requirements.
Configuration and suitability depend on the specific model documentation.
A check valve opens and closes automatically in response to fluid forces to restrict reverse flow. Its behavior depends on disc motion, velocity, differential pressure and installation orientation. Selection should consider flow changes and pump shutdown, balancing forward pressure loss against closing response.
For ammonia service, identify gas, liquid or aqueous ammonia and assess wetted metals, packing, gaskets and seats against purity, water content and temperature. Refrigeration duty also requires review of cycling and defrost, trapped liquid and external sealing.
Define fluid composition and continuous and start-stop operating conditions, then assess body, internals and seals as a combination. Particles, deposits and cleaning affect sealing surfaces and mechanisms; plan maintenance for the actual service.
Explore the product structure and configuration.
Structure depends on the model. Select the image to enlarge.
No matching features.
Confirm the configuration for the medium and service conditions.
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Industry image unavailableIllustrative sceneThis valve is a selection candidate for industrial-gas production, storage and utility piping. Application focus: Ammonia process or refrigeration piping; review ammonia compatibility, seal materials and leakage control.
Enquiry focus: Gas type and purity requirements, operating pressure and leak-testing requirements.
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Industry image unavailableIllustrative sceneThis valve is a selection candidate for chemical process or utility piping. Application focus: Ammonia process or refrigeration piping; review ammonia compatibility, seal materials and leakage control.
Enquiry focus: Medium composition and concentration, corrosive conditions and seal requirements.
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Industry image unavailableIllustrative sceneThis valve is a selection candidate for heating, cooling and circulating-water systems. Application focus: Ammonia process or refrigeration piping; review ammonia compatibility, seal materials and leakage control.
Enquiry focus: Medium, pressure, temperature, connection standards and operation requirements.
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