Brennan in-line check valve in 316 stainless steel with 1/2 in OD tube fitting ends, marked with the flow direction on the body. For instrumentation, process and hydraulic tubing runs where a compression connection is wanted rather than a pipe thread.
Prices on request. Contact us for availability and quotations.
The valve sits in a tubing run rather than in threaded pipework: each end is a compression tube fitting that grips 1/2 in OD tube, so the line is made up by cutting and deburring the tube and pulling the nut up, with no thread sealant and no pipe dope in the system. Inside, a spring-loaded poppet passes flow one way and seats on reversal; the direction is arrowed on the body.
The unit photographed is marked BRENNAN, CHECK VALVE, CONN. 1/2" OD and SS316. Brennan states in its Instrumentation Catalog that its instrumentation valves are supplied in double-ferrule design only, and that its double-ferrule tube fittings are made to be interchangeable and intermixable with Swagelok and Parker A-LOK tube fittings — which is usually the deciding factor when a check has to go into an existing tubing system.
316 stainless suits process water, hydrocarbons, instrument air and most general chemical duties. A part number is not marked on the body, so confirm the exact Brennan reference, the working pressure and the cracking pressure with the manufacturer or the branch before quoting the valve into a system, and confirm the tube wall thickness the fitting is to be made up on.
| Manufacturer Marking | Body marked 'BRENNAN / CHECK VALVE / CONN. 1/2" OD / SS316' with a flow arrow |
|---|---|
| Valve Type | In-line poppet check valve, unidirectional |
| Body Material | 316 stainless steel (body marked SS316) |
| End Connections | 1/2 in OD tube, compression tube fitting both ends (nut and ferrule set visible) |
| Ferrule Type | Double (twin) ferrule — Brennan states its instrumentation valves are available in double ferrule only, in stainless and brass |
| Fitting Interchange | Brennan states its double-ferrule instrumentation tube fittings are manufactured to be interchangeable and intermixable with Swagelok and Parker A-LOK tube fittings |
