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Check-All Valve Mfg. Co. Featured Articles
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About Check-All Valve Mfg. Co.

Check-All Valve manufactures a complete line of in-line spring-loaded poppet check valves to serve a wide range of industries. Every Check-All valve is designed and built to perform to your exact needs and specifications. Our valves are offered with metal-to-metal or soft seats in sizes ranging from 1/8” NPT to 20” flanged connections. Spring cracking pressures range from 1/8-PSI to 85-PSI and virtually any setting in between. Pressure ratings are available from full vacuum to 10,000 PSI with standard and exotic materials of construction also available.

Check-All valves are engineered for silent operation.  They close quickly and smoothly to eliminate hammer noise.  They are designed to function equally well in either a vertical or horizontal position, with proper spring selection.  They are also designed to reduce installation costs.

With many styles available, Check-All Valve provides check valves for practically every service application. With their rugged, dependable Check-All trim, they can be used as check valves, low pressure relief valves, and vacuum breakers by selecting any of their wide range of spring settings and seat materials.  The Company is ISO 9001 certified and manufactures product lines compliant with CE/PED requirements, Canadian Registration Number guidelines, 3A Sanitary Standards, NACE MR0175/ISO 15156 and NACE MR0103 and others.

Check-All Valve Mfg. Co. Whitepapers

Backflow Prevention 101

Backflow is the result of water flowing in the reverse or unwanted direction. This generally happens when the normal supply or upstream pressure in a…

Valve Sizing Technical Data

Valve Sizing - Check-All® furnishes two methods to aid the customer in the selection of the correct valve size to meet their flow requirements; Flow…

Water hammer can and must be eliminated

Check valves prevent the hydraulic shock by design By Sheila Kennedy, CMRP, Chemical Processing Contributing Editor INTRO: Water hammer can be so damaging to machinery and dangerous to…

Check Valve Sizing is More Important Than You Think

It is surprisingly common for check valve sizing to be an afterthought in the flow control/fluid process industries. Often marketed together with gate and globe…

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