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Restrictor Check Valves
restrictor-check-valves
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Restrictor Threaded In-Line Check Valves
The DFT® Restrictor Check Valve (RCV) is a versatile, all-purpose, spring-assisted, in-line check valve for applications that require higher cracking pressures to open the check valve than those offered by other DFT® check valves. Cracking pressures are available from 2 to 40 psi. Like the Basic-Check® valve, the Restrictor Check provides reliable, low maintenance service for a wide range of fluids and gases at various pressure/temperature combinations. The valve consists of a guard cage, spring, valve disc, retaining ring and seat. It can be combined with pipe fittings such as couplings, drain elbows, etc. (not provided by DFT®) to form a complete check valve unit ideally suited for a broad range of applications. The RCV should not be considered a substitute for a Pressure Relief Valve.
Not recommended for use on discharge of reciprocating compressors.
Warning: Use with extra deep, bell reducer only
Standard Features:- 1/4" to 2 1/2" Line Size
- Higher Cracking Pressures (2 to 40 psi)
- 450 to 2500 CWP
- Threaded Ends
- Stainless Steel Construction
- Spring-Assisted Silent Closing
- Horizontal or Vertical Installation
- Tight Shutoff - Lapped Disc & Seat
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SCV-R® In-Line Restrictor Check Valves
The SCV-R® Check Valve is a non-slam Spring-assisted check valve designed for applications requiring "higher cracking pressures" than the DFT Model SCV® check valve. The SCV-R® check valve is a self-contained check valve that installs directly in a pipeline and contains all the proven features of the SCV® check valve.
Standard Features:- 1/2" to 2" Line Size
- 750 CWP
- NPT & SW Ends
- Stainless Steel Construction
- Inconel® X-750 Spring
- Spring-Assisted Silent Closing, Non-Slam
- Cracking Pressures: 0.8 to 40.8 psig
- Zelon® "O" Ring Body Seal
- Horizontal or Vertical Installation
- Body Guided Disc
- Tight Shutoff Lapped Disc & Seat
- Easy Maintenance
- 3" is not Available
- Contact DFT® for Other Cracking Pressures.
- 750CWP is Rated to 470ºF.