Description
Keckley Check Valve, Double Disc Retainerless, Series: Style DD, 2 in Nominal, Wafer, 285 psi, 150 lb, Media: Gas/Oil/Water, 2-3/8 in Inlet to Outlet Length, Cast Carbon Steel Body, Buna-N/316 Stainless Steel/Inconel X-750 Trim, Buna-N, Epoxy Coated, 4-1/8 in Dia, Import
Features:
- Keckley style DD wafer body double disc check valves are produced by the investment casting process
- These castings are thoroughly inspected and machined to exacting specifications
- Reference individual technical data pages for standard materials utilized in the construction of valve components
- The Keckley wafer double disc check valves are constructed from rugged castings that are machined to exacting specification
- A short face-to-face dimension
- Lighter weight, by 80 to 90 percent than non-conventional full-body check valves
- Spring-loaded, double disc design has a low cracking pressure
- The tension spring performs a lifting motion on the disc to prevent excessive wear on the "heel" area of the elastomer seat
- The independent, dual shaft design allows interchangeability of shaft
- The stop shaft stabilizes the disc during high flow rates
- Field serviceable without the need for special tool
- 316 stainless steel disc, Buna-N O-ring seat and Inconel X-750 spring
Applications:
Liquid or gas where protection from flow reversal in a pipeline is required
Standards/Approval:
- ASTM A216
- GRADE WCB Body
- ASTM A 351
- GRADE CF8M Disc
- ASTM A 182
- GRADE F-316 Spring Plate/Thrust Washer/Hinge Pin/Stop Pin/Locating Piece
- Conform to API 594 & 6D
- Design ASME B16.5
- B16.34
- MSS SP-6/25/55
- Testing API 598
Warranty:
1 Year
