In-line non-return valve made of stainless steel (AISI 316),
spring-loaded and reinforced pin with FPM seal, suitable for use with
compressed air or vacuum in low impact applications. NPT tapered female gas threaded connections according to ANSI B 1.20.1.
Surface treatment: degreasing, pickling and electropolishing.
The SMALL/NPT check valve is generally used in civil and industrial hydraulic systems in the outlet position where it is necessary to avoid fluid return or compressed air and works at a nominal working pressure (PN) of 16 bar.
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Manufacturing process: pressed stainless steel
Surface treatment: degreasing, pickling and electropolishing
Seal ring: FPM
Threaded ends: NPT tapered female gas according to ANSI B 1.20.1.
TIG weldings: without additional filling material
Opening pressure: Min. 0,025 – Max. 0,035 bar
Hydraulic test on the seal ring: 0.2 bar
Nominal working pressure: 16 bar
Working temperature: -20°C – +150°C
Certifications: NSF/ANSI 61 (only version Aisi 316)
|1||Threaded ends||1.4401 / 1.4404 EN 10088|
|2||Body||1.4401 / 1.4404 EN 10088|
|3||Flow control disc||1.4401 / 1.4404 EN 10088|
|5||Bush support||1.4401 / 1.4404 EN 10088|
|6||Spring||1.4401 / 1.4404 EN 10088|
|A||B||C||D||Weight in gr.|
|900104NPTR||SMALL CHECK VALVE 1/4" 316/NPT REIF.PIN||20||56||32||1/4" F||140|
|900111NPTR||SMALL CHECK VALVE 3/8" 316/NPT REIF.PIN||20||56||32||3/8" F||105|
|900118NPTR||SMALL CHECK VALVE 1/2" 316/NPT REIF.PIN||25||56||32||1/2" F||105|