DFT Inc. Datasheets for Air Valves

Air valves allow metered fluid flow in one or both directions. They are used in pneumatic circuits to regulate the rate of activation or exhaust of cylinders and other pneumatic devices.
Air Valves: Learn more

Product Name Notes
Vacuum Breaker Check Valves -- DFT® DFT® Vacuum Breakers provide effective protection against collapse of pressure vessels, tanks and rolls. They prevent condensate "back-up" when equipment is shut down or inlet steam is reduced by modulating...
Wafer Check Valves -- DFT® ALC® The ALC® is an in-line, spring assisted, single guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow. The lightweight compact design fits between mating flanges and meets...
Threaded In-Line Check Valves -- DFT® Basic-Check® The DFT® Basic-Check® valve is a versatile all-purpose, spring-assisted, in-line check valve that provides reliable, low maintenance service for a wide range of liquids and gases at various pressure/temperature combinations.
Flanged Spring Assisted Center Guided Check Valves -- DFT® Excalibur® The DFT® Excalibur® Silent Check Valve is a spring-assisted, center guided, in-line, check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The...
Flanged Spring Assisted Check Valves -- DFT® DLC® The DFT® Model DLC® is a corrosion resistant, dependable, versatile and economical spring assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or...
Spring Assisted Silent Check Valves -- DFT® GLC® The DFT® Model GLC® Silent Check Valve is a spring-assisted, center guided, in-line, flanged check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature...
Flanged Check Valve -- DFT® PDC® The DFT® Model PDC® Silent Check Valve is specially designed for use on the discharge side of reciprocating air or gas compressors. It includes a pulse damping chamber to maintain...
Threaded In-Line Check Valves -- DFT® SCV® The DFT® Model SCV® is a corrosion resistant, dependable, versatile and economical spring-assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam,...
Wafer Silent Check Valves -- DFT® WLC® The DFT® Model WLC Wafer style Silent Check Valve is a lightweight, spring-assisted, in-line check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature...
Spring Assisted Sanitary Check Valves -- DFT® DSV™
Spring Assisted Sanitary Check Valves -- DFT® DSV®
The DSV® is an in-line spring-assisted check valve designed to prevent flow reversal in industries with strict cleanliness codes. To accommodate various piping arrangements, the DSV® is available as a...
Insert Wafer Check Valves -- DFT® FBC™ The FBC™ is a compact, lightweight, insert wafer check valve that easily installs between two flanges. The in-line, spring assisted design prevents "water hammer" and "reverse flow". The FBC™ contains...
Severe Service Control Valves -- DFT® HI-100™ The HI-100 product line features an in-line, through-ported, venturi flow shape. The seating element, a ball, is contained by a cage that positions it relative to the downstream seat by...
Flanged Abrasive Service Control Valves -- DFT® Ultra-Trol® The ULTRA-TROL® is designed for applications requiring flanged end connections. The internal design features are similar to the HI-100 found on page 6. They include the in-line through ported,...
Restrictor Check Valves (RCV) -- DFT® 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...