The DFT® Model PDC® check valve is a silent, non-slam check valve designed for reciprocating air or gas compressor discharge lines, featuring a pulse-damping chamber to prevent disc slamming and seat wear. It is available in flanged end configurations from 2″ to 12″, with ASME Class 150 to 1500 ratings, and meets API 6D and ASME B16.10 standards. The valve has a one-piece body, center-guided trim, spring-assisted silent closing, and axial flow design. Body materials include carbon steel (A216 WCB) or stainless steel (A351 CF8M), with stainless steel trim and a standard 316 stainless spring rated to 450°F. Inconel® X-750 springs are optionally available. Weight and flow characteristics vary by size and class, with Cv values ranging from 55 to 2300 and cracking pressures from 0.29 to 0.82 psig.
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 the disc in the open position during the momentary reductions in flow associated with each cycle of a reciprocating compressor and to protect against premature seat wear.
| DFT Inc. | |
|---|---|
| Product Category | Industrial Valves |
| Product Number | DFT® PDC® |
| Product Name | Flanged Check Valve |
| Valve Type | Metal Seated; Ball Check; Check |
| Primary Material | Stainless Steel (optional feature); Steel (optional feature) |
| Media | Water; Gas; Gasoline / Diesel Fuel; High Purity; LP Gas; Natural Gas; Sour Gas; Specialty Corrosive; Hydraulic; Air; Breathable; Compressed Air |
| Valve Size | 2.00 to 12.00 inch (50.80 to 304.80 mm) |
| Maximum Pressure | 3705.00 psi (2608 m H2O) |
