250 Lohm Ø .187" Lee Chek


    The Lee Company's new 250 Lohm 187 Lee Chek provides 60% more flow in the same compact package as Lee's field-proven Axial Flow 187 Chek.

    Available in forward and reverse flow configurations, the new Lee Chek is constructed entirely of stainless steel and features a hard, metal to metal seat for durability and long life. Designed for system pressures up to 3000 psi, the valve weighs only 1.5 grams and is 100% tested and inspected to ensure reliable, consistent performance.
    • Designed for system pressures up to 3000 psi
    • 60% higher flow capacity
    • Small Size: 0.187" diameter
    • Weighs only 1.5 grams
    • 100% tested and inspected


Pin and Insert




Free Flow Forward





Free Flow Reverse






Installation Hole







PERFORMANCE
  • Cracking Pressure: 5 ± 3 psid.
  • Maximum Leakage in Checked Direction: 1 drop/minute at 5 psid; 1 drop/hour at 1000-3000 psid
  • Free Flow: 250 Lohms max. at 20 psid and greater
  • Nominal System Pressure: 3000 psi max.
  • Nominal Weight: 1.5 grams.
(Valve performance on MIL-PRF-83282 at 85 °F. 1 drop = 50 mL)

MATERIALS
PART
MATERIAL
SPECIFICATION
Body
303 CRES
QQ-S-763C
Pin
17-4PH CRES
AMS 5643
Spring
17-7PH CRES
AMS 5678
Ball
440C CRES
AMS 5630
Ball Follower
303 CRES
QQ-S-763C
Spring Seat
303 CRES
QQ-S-763C
Cage
303 CRES
QQ-S-763C
Finish: All CRES Parts Passivated
Pins are prewaxed. Do not degrease. Do not lubricate.

INSTALLATION AND EXTRACTION
Tool Set Part Number is CUTA1870104C
Replacement Pin Part Number JETA1870004A
For Installation and Extraction Procedures, Tools and Oversize Spare Parts, follow this link

LEE PART NUMBER
CRACKING PRESSURE (PSID)
LOHM RATE
FLOW DIRECTION
CKFA1876105A
5 +/- 3
250
Forward
CKFA1876101A
1 +/- 0.5
250
Forward
CKRA1876105A
5 +/- 3
250
Reverse
CKRA1876101A
1 +/- 0.5
250
Reverse

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 08/2008 by The Lee Company, USA
-- Trademark information --
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