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DFT Inc.
Basic-Check® Threaded In-Line Check Valves

Basic-Check® Threaded In-Line Check Valves

Product catalog summary

Overview: The DFT® Basic-Check® Valve is a versatile, non-slam check valve designed for reliable, low-maintenance service across a variety of applications involving liquids, steam, and gases. It is composed of a guard cage, spring, valve disc, retaining ring, and seat, and can be integrated with various pipe fittings.

Specifications: The document provides detailed specifications for different models of the Basic-Check® Valve, including:

Line Size: Ranges from 0.25 inches to 2.50 inches.
Inlet and Outlet Threads: FNPT and MNPT threads are used.
Cold Working Pressure: Varies from 450 psig to 6000 psig depending on the model.
Valve Cracking Pressure: Generally around 0.6 psi, with some models at 0.24 psi or 0.44 psi.
Materials: Common materials include 303 SS, 316 SS, and 416 SS, with various seat materials like Viton®, EPDM, Buna, and Zelon®.

Applications: These valves are suitable for a broad range of pipeline applications and can be combined with fittings like reducing couplings and drain elbows to form complete check valve units.

Key Features: The valves are designed to prevent backflow and are characterized by their non-slam operation, which minimizes water hammer and associated noise and damage.

Catalog excerpts

Basic-Check® Threaded In-Line Check Valves-1

DFT® Inc 140 Sheree Blvd. PO Box 566 Exton, PA 19341-0566 Phone: 800.206.4013 Fax: 847.540.1422 Email: [email protected] Website: www.dft-valves.com Basic-Check® Threaded In-Line Check Valves The DFT® Basic-Check® Valve is a versatile all-purpose, non-slam valve that provides reliable, lowmaintenance service for a wide range of liquids, steam 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 reducing couplings, drain elbows, etc. to form a complete check valve unit ideally suited for a broad range of pipeline applications or incorporated into more Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 16.7 in.water 0.6 psi 0.041 bar 16.7 in.water 0.6 psi 0.041 bar 16.7 in.water 0.6 psi 0.041 bar 16.7 in.water

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 0.6 psi

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 0.36 psi 0.025 bar 10.1 in.water 0.36 psi 0.025 bar 10.1 in.water 0.36 psi 0.025 bar 10.1 in.water

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 0.025 bar 10.1 in.water 0.36 psi 0.025 bar 10.1 in.water 0.36 psi 0.025 bar 10.1 in.water

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 0.36 psi 0.025 bar 10.1 in.water 0.36 psi 0.025 bar 10.1 in.water 0.36 psi 0.025 bar 10.1 in.water 0.36 psi 0.025 bar 10.1 in.water 0.16 psi 0.011 bar 4.5 in.water 0.16 psi 0.011 bar 4.5 in.water

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 0.011 bar 4.5 in.water 0.16 psi 0.011 bar 4.5 in.water 0.16 psi 0.011 bar 4.5 in.water

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 0.01 bar 4.2 in.water 0.15 psi 0.01 bar 4.2 in.water 0.15 psi 0.01 bar 4.2 in.water

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 0.01 bar 4.2 in.water 0.15 psi 0.01 bar 4.2 in.water 0.15 psi 0.01 bar 4.2 in.water

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure 0.007 bar 2.6 in.water 0.1 psi 0.007 bar 2.6 in.water 0.1 psi 0.007 bar 2.6 in.water 0.1 psi

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Line Size Inlet (FNPT) A Outside Thread (MNPT) B Cold Working Pressure Valve Cracking Pressure

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Basic-Check® Threaded In-Line Check Valves

Basic-Check® Threaded In-Line Check Valves

Catalog excerpts

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