Ø .187" Zero Leak Chek, Forward Flow, Screened

Locking Pin and Chek Valve

CSFA1875000A • Free Flow Forward

Installation Hole


  • Cracking Pressure is 5 ± 3 psid.
  • Free Flow is 400 Lohms Max. Restriction when fully open.
  • Leakage in Checked Direction is Zero Leakage from 5-3000 psid.
  • Screen Hole Size is 0.015" Nominal.
  • Maximum Working Pressure Differential is 3000 psid.
  • Nominal Weight : Valve: 2.3 grams/Screen: .4 grams.
  • Test Fluid is Air at 70°F.
MATERIALS:
PART
MATERIAL
SPECIFICATION
Body
304 Cres
QQ-S-763
Cage
304 Cres
QQ-S-763
Poppet
15-5PH Cres
AMS 5659
Seat
15-5PH Cres
AMS 5659
Spring
17-7PH Cres
AMS 5678
Pin
17-4PH Cres
AMS 5643
Screen
304L Cres
QQ-S-766
Braze
-
AMS 4774
Post
303 Cres
QQ-S-763C
Spring (screen)
17-7PH Cres
AMS 5678
Elastomeric Seat

Each valve contains one
of the following elastomeric
materials.
Fluorocarbon
MIL-R-83485 or
MIL-R-83248
EPDM
MIL-R-83285
Finish: All Cres Parts Passivated per QQ-P-35.
Pins are prewaxed. Do not degrease. Do not lubricate.

INSTALLATION AND EXTRACTION
Tool Set Part Number: Insert is CUTA1870110C
Screen is CUTA1870228C
Replacement Pin Part Number CKFA1870005A
Replacement Screen Part Number FSSA1870150B
For Installation and Extraction Procedures, Tools and Oversize Spare Parts, follow this link
LEE Part Number
Cracking Pressure
Lohm Rate
Seat Material
Free Flow
Direction
Temp.
Range (°F)
CSFA187500A
5 ± 3
400
Fluorocarbon
FORWARD
-30/+390
CSFA187510A
5 ± 3
400
EPDM
FORWARD
-55/+290
For more information, please send us your application information via our ASK LEE service. Or contact our application engineers in the USA at 1-800-LEE-PLUG or our representatives around the world.
Copyright 08/2008 by The Lee Company, USA
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