The Answer to Failing Double Door Check Valves

Product Announcement from DFT Inc.

The Answer to Failing Double Door Check Valves-Image

The ALC easily replaces unreliable double door / butterfly check valves.

-- No more door springs or hinge pin failures

-- No more leakage due to misalignment of the doors and seat

-- No more internal parts going down stream

-- No more reverse flow

The DFT ALC® is an in-line, spring assisted, center guided "wafer" check valve designed to prevent "water hammer" and "reverse" flow.

The lightweight compact design fits between mating flanges and meets API 594 Face-to-Face dimensions. The ALC® is an easy to maintain check valve for applications involving liquids, gases or steam. Tapped holes are provided in the body for lifting lugs to assist with installation.

  • API 594 Face-to-Face dimensions
  • Wafer RF ends
  • Spring-assisted silent closing
  • Sizes 2" thru 24"
  • Horizontal or vertical installation
  • ASME Class 150 and 300
  • Standard body materials:
    - A216 WCB
    - A351 CF8M
  • Stainless steel seat, disc & bushing
  • Nitronic 60 stem
  • Inconel® X-750 spring
  • 0.5 psi cracking pressure spring
  • Seat leakage per MSS SP-61
  • Tapped holes in body for lifting lugs
  • Options
    - Soft Seat
    * Stellite Trim
    * NACE
    * API 6D
    - 316 SS spring
    - Custom sizing-low flow

For the ALC Features and Cut Sheet - Click here

About DFT Inc. DFT provides cost effective application engineering assistance, rapid prototyping and fast-turn initial production. Our staff responds quickly and our systems are designed to deliver reliably within our ISO2001-2008 quality management system. For more than sixty years DFT has solved check valve problems, prevented check valve failure and water hammer and solved severe service control valve problems.

DFT offers sanitary valves, non-slamming, and non-return valves, chemical valves, vacuum breaker valves, restrictor valves, compressor valves, wafer, threaded, and flanged valves, socket weld valves, soft seat valves, in-line valves, straight-thru design valves, silent check valves, spring assisted valves, horizontal, and vertical valves.

DFT is available to review your valve sizing requirements and assist you in selecting from a Basic Check® valve, Excalibur® valve, DLC® valve, SCV® valve, GLC® valve, WLC® valve, PDC® valve, HI-100 control valve, Ultra-Trol® control valve or Uniflo valve.

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