KSCdirect

Product Data

KSCdirect Part #: OCK DD1F-CI-34136-800
Description: 8" Cast Iron, Wafer, Class 125
MFG Part #: DD1F-CI-34136-800
UPC:
Supplier: O C KECKLEY COMPANY
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Details

Description

Keckley Check Valve, Double Disc Retainerless, Series: Style DD, 8 in Nominal, Wafer, 200 psi, 125 lb, 150 deg F, Media: Gas/Oil/Water, 3-3/4 in Inlet to Outlet Length, Cast Iron Body, 304 Stainless Steel/Buna-N/Cast 304 Stainless Steel Trim, PTFE, Epoxy Coated, 11 in Dia x 3-3/4 in D, Import

Features:

  • 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
  • 8 in minimum companion flange bore
  • Cast 304 stainless steel disc, Buna-N seat, 316 stainless steel spring, 304 stainless steel stop pin/hinge pin, carbon steel plug
  • -20 to 250 deg F seat operating temperature
  • 500 deg F spring maximum operating temperature
  • 1800 Cv flow coefficient
  • 200 psi at 150 deg F
  • The Keckley wafer double disc check valves are used in both vertical and horizontal application
  • For horizontal flow application the shaft should be vertically oriented and contact keckley for downward vertical flow installation
  • PTFE thrust washer

Applications:

Liquid or gas where protection from flow reversal in a pipeline is required

Standards/Approval:

  • ASTM A126-B
  • ASTM A351
  • GRADE CF8 Disc
  • ASTM A182 Spring/Stop Pin/Hinge Pin
  • ASTM A307
  • B Plug
  • Design ASME B16.1
  • Conform to API 594 and 6D
  • MSS SP-6/25/55
  • Testing API 598

Warranty:

1 Year

Attributes/Specifications

Body Material Cast Iron
Dimensions 11 in Dia x 3-3/4 in D
Domestic/Import Import
End Style Wafer
Finish Epoxy Coated
Inlet to Outlet Length 3-3/4 in
Media Gas/Oil/Water
Nominal Size 8 in
Pressure Class 125 lb
Pressure Rating 200 psi
Series Style DD
Softgoods Material PTFE
Temperature Rating 150 deg F
Trim Material 304 Stainless Steel/Buna-N/Cast 304 Stainless Steel
Type Double Disc Retainerless
Manufacturer O C KECKLEY COMPANY