Products/Services for Check Valve Diagram

  • Check Valves-Image
    Check Valves - (1934 companies)
    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. Fluid flow in the desired direction opens...
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    Valve Type
    Severe Service Rated
    Back Flow Preventer Assembly
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    Valve Repair Machines - (12 companies)
    Valve repair machines are used to machine valve seats and faces on gate, globe, check, ball, safety, and control valves. Portable, or in-line, machines are used for on-site repairs (primarily grinding and lapping) while the valve is on-site or still...
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  • Valve Repair Services-Image
    Valve Repair Services - (176 companies)
    Valve repair services repair and rebuild used valves. Some repair services specialize in the repair and rebuilding of many different types of used valves, but they may also work exclusively with specialized, proprietary or patented products. Repair...
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  • Backflow Preventers-Image
    Backflow Preventers - (129 companies)
    Backflow preventers are assemblies consisting of two check valves and two shut off valves. These assemblies may also include test cocks for each chamber. Backflow preventers are assemblies with two check valves and two shut-off valves that prevent...
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  • Gas Valves-Image
    Gas Valves - (518 companies)
    ...permit flow in only one direction. Block-and-bleed, blow-off, cartridge, check, and control valves are commonly available. Diaphragm valves separate the flow of gases from the closure element. Directional valves steer flow through selected passages...
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    Hydraulic Valves - (696 companies)
    ...valves can be almost any valve, i.e., check valve, drain valve, control valve, and many more, as long as the valve restricts hydraulic fluid they can be classified as hydraulic valves. For a full description on types of valves and their actuators please...
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    Air Valves - (807 companies)
    ...include stopping and starting flow, throttling (control) flow, and acting as a non-return check for flow (check). Stop/Start valves are used for systems that do not need the flow throttled. The valve opens to allow the flow and closes to stop flow...
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    Plastic Valves - (342 companies)
    ...valves permit flow in only one direction. Check valves are self-actuating and prevent the reversal of process flow. Diaphragm valves separate the flow of gases from the closure element. Directional valves steer flow through selected passages. Diverter...
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    Vacuum Valves - (169 companies)
    Vacuum Valves Information. Vacuum valves are used when a vacuum must be maintained in a closed system. Vacuum valves are used to control gas flow into a chamber, isolate, vent, provide relief or control conductance. Gate, inline and angle valves...
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    Sanitary Valves - (209 companies)
    Sanitary valves are designed for applications requiring clean or sterile processing. Sanitary valves are designed for use in applications requiring clean or sterile processing. Sanitary valves are commonly used in dairy, food, pharmaceutical...
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Product News

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Products such as one-way valves are often built to open at a certain pressure. Product and test engineers need to know at what pressure the valve starts to open (cracking pressure) and if the valve body breaks....

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Experience has proven the need for check valves in piping where reverse flow could be detrimental to the system. A valve which closes quietly and eliminates water hammer is obviously desirable. A need for basic information on how to specify and utilize these check valves does exist...

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Compressor valves serves as check valves for the inlet and discharge passages of the cylinder and will open and close once for every revolution of the crankshaft. If the compressor is running at 500 rpm for 24 hours a day, the valves will open and close 720,000 times every day! Valves have...

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Learn how to disassemble the 3A Sanitary valve by Check-All Valve. The electropolished stainless steel check valve for your sanitary needs....

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A CAS Data Loggers customer who had recently purchased a dataTaker DT80 data logger called in to our tech support asking how to set it up to not only control a hydraulic valve used in materials testing, but also to only log data when the hydraulic valve was active. This would enable the user...

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Oil in the air supply to a CMM was causing inaccurate measurements and resulting in scrapped parts. A check valve that passed CMM inspection, for example, later failed functional testing and had to be scrapped, indicating that the CMM measurements were inaccurate....

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A newly released ultraminiature check valve incorporates an elastomer duckbill that enables the part to withstand up to 250-psig back pressure. The check valve is available with an in-line barb-to-barb configuration or internal or external M3 threads. Valve materials are brass and stainless steel...

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Acrylic Multipolymer Adds Durability to Check Valve Design A chemically resistant material improves a key component in drug-delivery systems To provide patients with high-quality treatment and care, doctors rely on the integrity of each and every drug-delivery device and component. Because...

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A leading international semiconductor manufacturer recently cut out and sent a section of pipe to Plast-O-Matic complaining of a leaking check valve, pointing to cracks on both the inlet and outlet. Cracked ports on a new valve generally indicate that the installer used a pipe wrench or channel...

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A line of check valves comprises a variety of styles and is manufactured in ISO Class 8 -certified cleanrooms. Included in the product line is an in-line back-check valve, which features a preloaded, normally closed silicone diaphragm that allows flow in a single direction. One-way...

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