Ø .125" High Pressure Chek

Locking Pin and Chek Valve



Forward Flow


Reverse Flow


Installation Hole



  • Cracking Pressure is 5 ± 3 or 1 ± 0.5 psid.
  • Maximum Leakage is 1 drop/minute at 5 psid in the checked direction, 1 drop/hour at 1000 - 8000 psid.
  • Lohm rate at 15 psid and greater is 400 Lohms Maximum.
  • Maximum Working Pressure is 8000 psid.
  • Nominal Weight is 0.6 grams.
    (Valve performance on MIL-H-83282 at 80°F. 1 drop = 50 µL)
MATERIALS:
PART
MATERIAL
SPECIFICATION
Body
304 Cres
QQ-S-763
Pin
13-8 MO Cres
AMS 5629
Poppet
15-5PH Cres
AMS 5659
Spring
17-7PH Cres
AMS 5678
Spring Seat
304 Cres
QQ-S-763
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 is CUTA1250306C
For Installation and Extraction Procedures, Tools and Oversize Spare Parts, follow this link
LEE Part Number
Cracking Pressure
Lohm Rate
Free Flow Direction
CHFA1256505A
5 ± 3
400
FORWARD
CHFA1256501A
1 ± 0.5
400
FORWARD
CHRA1256505A
5 ± 3
400
REVERSE
CHRA1256501A
1 ± 0.5
400
REVERSE
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 11/2002 by The Lee Company, USA
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