DFT’s Model ALC® and WLC® Wafer Style Check Valves are designed to prevent water hammer and are the solution to double door/butterfly check valves problems. These silent check valves are lightweight, spring-assisted, center guided, non-slam valves that provide reliable, low-maintenance service for a wide range of fluids and pressure/temperature combinations. They can be installed either vertically or horizontally.
This in-line, spring-assisted, center guided “wafer” check has a compact design that fits between mating flanges and meets API 594 Face-to-Face dimensions. The ALC® is an easy to maintain for applications involving liquids, gasses or steam. Tapped holes are provided in the body for lifting lugs to assist with installation.
Other features include:
• Sizes 2″ thru 24″ line size
• ASME Class 150 and 300
• Standard body materials:
– A216 WCB
– A351 CF8M
• Stainless steel seat, disc & bushing
• Nitronic 60 stem
• Inconel® X-750 spring
Image credit: DFT Inc.