Shop Norgren T55/T56 Inline Threaded Check Valves

The IMI Norgren T55 and T56 Inline Non-Return Check Valves are available in various sizes, including M5, 1/8", 1/4", 3/8", and 1/2", designed to facilitate the free flow of air in one direction only. Featuring a simple yet reliable design, these valves are silicone-free and offer low cracking pressure, ensuring efficient performance. The T56 model comes with male connections equipped with an O-ring in parallel threads. Suitable for use with compressed air, both lubricated and non-lubricated, these valves operate within a pressure range of 1.5 to 145 psig (0.1 to 10 bar) and temperatures ranging from 0°F to 175°F (-20°C to +80°C), with high-temperature versions available with FPM seals. Constructed with durable materials such as aluminum (T55), brass (T56), nitrile rubber O-rings, POM valves, and stainless steel springs, these valves ensure longevity and reliability in various applications.

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Inline Threaded Check Valves

Compressed air, filtered, lubricated and non-lubricated

1.5 to 145 psig (0.1 to 10 bar)

0°F to 175°F* (-20°C to +80°C) - NOTE: Consult our Technical Team for use below 35°F (+2°C)
1/8" thru 1/2" for T55 Aluminum, 1/8" thru 1/4" for T56 Brass

T55 Aluminum, T56 Brass

Click HERE to view the IMI Norgren T55/T56 Valve Catalog

Click HERE to view the entire IMI Norgren T55/T56 Check Valve Collection

Shop T55/T56 Inline Check Valves


Click on the model number in the chart below to view that item. Options show below are most common and readily available.
Don't see what you need? Ask our technical team for a unit fit for your application!

Product SKU Valve Type Pressure Rating Body Material Port Size Lead Time Price
T55A1800 Inline 145 Aluminum 1/8" NPT 5-7 Days $32.99
T55A2800 Inline 145 Aluminum 1/4" NPT 5-7 Days $48.99
T55A3800 Inline 145 Aluminum 3/8" NPT 105 Days $57.99
T55A4800 Inline 145 Aluminum 1/2" NPT 112 Days $77.99


Technical Specs




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