Ø .156" High Pressure Chek


    The Lee Company's new High Pressure 156 Lee Chek is the latest addition to our field-proven, miniature check valve family. Weighing only 0.7 grams nominal, the 0.156" diameter valve is nearly 2.5 times more efficient than other high pressure check valves of similar size. The installed envelope is less than half that of a 0.187" diameter high pressure check valve.

    Available in a forward flow configuration, the new Lee Chek is constructed entirely of stainless steel and features a hard, metal to metal seat for durability and long life. Each Lee Chek is 100% tested and inspected to ensure reliable, consistent performance.
    • Designed for system pressures up to 5000 psi
    • Small size: 0.156" diameter
    • Weighs only 0.7 grams
    • 100% tested and inspected
    • All stainless steel


Locking Pin and Insert




Free Flow Forward






Installation Hole






PERFORMANCE
  • Cracking Pressure: 5 ± 3 or 1 ± 0.5 psid
  • Maximum Leakage in Checked Direction: 1 drop/minute max. at 5 psid; 1 drop/hour at 1000 - 5000 psid
  • Lohm Rate: 250 Lohms max. at 25 psid and greater
  • Nominal System Pressure: 5000 psi max.
  • Nominal Weight: 0.7 grams.
(Valve performance on MIL-PRF-83282 at 85°F. 1 drop = 50 µL)

MATERIALS
PART
MATERIAL
SPECIFICATION
Body
15-5PH CRES
AMS 5659
Pin
13-8MO
AMS 5629
Spring
302 CRES
AMS 5688
Ball
440C CRES
AMS 5630
Ball Follower
15-5PH CRES
AMS 5659
Finish: All CRES Parts Passivated
Pins are prewaxed. Do not degrease. Do not lubricate.

INSTALLATION AND EXTRACTION
Tool Set Part Number is CUTA1560106C
Replacement Pin Part Number is CHFA1560003A
For Installation and Extraction Procedures, Tools and Oversize Spare Parts, follow this link

LEE PART NUMBER
CRACKING PRESSURE (PSID)
LOHM RATE (MAX.)
FLOW DIRECTION
CHFA1566505A
5 +/- 3
250
Forward
CHFA1566501A
1 +/- 0.5
250
Forward

Download a PDF file of the Product Data Sheet
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 07/2008 by The Lee Company, USA
-- Trademark information --
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