Close Menu
Check Valves

187 Axial Flow, 250 Lohm Check Valve

This miniature check valve is only 0.187 inches in diameter and 0.62 inches in length. This valve features an economical ball-style design allowing free flow in one direction and preventing flow in the other direction. It is ideal for applications with flow rates up to 1.2 GPM.

Key Product Facts
  • Ball-Style Check Valves
  • Diameter:0.187 inches
  • Lohm Rate:250 Lohms max
  • Operating Pressures:Up to 3000 psi
  • Leakage:1 drop / hour at 3000 psi

Product Information

General Performance
Characteristic Specification
Cracking Pressure 5 ± 3 or 1 ± 0.5 psid
Maximum Leakage in Checked Direction at 5 psid 1 Drop / Minute
Maximum Leakage in Checked Direction at 1000-3000 psid 1 Drop / Hour
Lohm Rate at 20 psid and Greater 250 Lohms
Nominal System Pressure Up to 3000 psi
Nominal Weight 1.5 grams
Test Fluid MIL-PRF-83282 at 85°F
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.
Flow Curve
Cross Section Views
Dimensional View
Installation Hole Details

Part Numbers & Specifications

This table below contains the part numbers and technical specifications for this product. If you have specific questions, need a quote, or would like to request a handbook or drawing, click the red request button in the column on the far right.

Part Numbers & Specifications
PART NUMBER CRACKING PRESSURE (psid) LOHM RATE FLOW DIRECTION Request Information
CKFA1876105A 5 ± 3 250 Lohms Maximum Forward Request
CKFA1876101A 1 ± 0.5 250 Lohms Maximum Forward Request
CKRA1876105A 5 ± 3 250 Lohms Maximum Reverse Request
CKRA1876101A 1 ± 0.5 250 Lohms Maximum Reverse Request

Installation & Accessories

Replacement Parts & Accessories
PART NUMBER DESCRIPTION
CUTA1870104C Installation / Extraction Tool Set
JETA1870004A Replacement Pin

CAD Envelopes

Get in touch

Questions?

From plugs to solenoid valves, there’s a vast array of products that The Lee Company can offer. If you’d like to discuss the best solution for your specific application or to learn more about our capabilities, use-cases, or quality standards, contact your local Lee sales engineer.