Quiet Protection for Critical Cooling.

DFT ALC® Axial Flow Check Valves delivers low pressure drop, silent operation, and reliability for mission-critical cooling system applications.

Cooling systems in continuous-duty applications require dependable uptime, stable thermal performance, and components designed for consistent operation.

The DFT ALC Axial Flow Wafer Check Valve  is engineered to meet those demands with a non-slam design that protects pumps, minimizes energy loss, and supports high-efficiency cooling loops.

Unlike traditional swing or dual-plate check valves, the ALC’s axial flow spring-assisted design closes smoothly and quickly to prevent slam and water hammer, protecting pumps and piping while extending system and valve service life.

Key Benefits

• Low Pressure Drop – Efficient flow for reduced energy demand
• Non-Slam, Silent Operation – Prevents water hammer and protects critical equipment
• Compact, Lightweight Design – Ideal for space-constrained installations
• Spring-Assisted, Fast-Closing Disc – Reliable backflow prevention in any orientation
• Built for Continuous Operation – Proven durability for mission-critical systems

Protect uptime. Improve efficiency.

Specify DFT® ALC®.

The ALC® Wafer Check Valve is offered from 2"-24", ASME Class 150#-300#, meeting API-594 face-to-face dimensions, in both A216 grade WCB Carbon Steel and A351 CF8M Stainless Steel bodies with all Stainless Steel trim.
These center-guided, non-slam, spring-assisted silent check valves are a direct replacement for those constantly failing double door style check valves.

The ALC® can be used in both vertical or horizontal orientations, available with an Inconel X-750 springs, 0.5 psi cracking pressure and it meets or exceeds MSS-SP 61 specifications. Metal-to-metal seats or soft seats for zero leakage. Applications include liquids, gases, or steam. Tapped lifting lug holes are provided in the body for ease of installation in the 10" and larger ALC's.

For more information on the ALC® and our full line of Non-Slam Silent Check Valves available from DFT Inc., visit our website at www.dft-valves.com or contact us at dft@dft-valves.com, or phone 1-800-206-4013.