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Check Valves

855 Series Check Valve

This threadless, cartridge-style, one-way valve is designed for installation into metal manifolds. The check valve features The Lee Company’s field-proven locking end that provides secure retention without the need for threads, O-rings, or sealants. The valve features all stainless steel construction with a high quality metal seat providing low leakage, repeatable cracking pressure, and long life. Models are available with an integral safety screen and ceramic ball. The valve is 100% functionally tested to ensure performance.

Key Product Facts
  • Mounting Configuration:Insert - Into Metal
  • Diameter:7.95 mm
  • Lohm Rate:As low as 75 Lohms
  • Maximum Working Pressure:280 Bar
  • Valve Seat Type:Metal to Metal

Product Information

General Performance
Characteristic Unscreened, Forward & Reverse Screened, Forward Screened, Reverse
Lohm Rate 75 Lohms 170 Lohms 130 Lohms
Leakage at 172 kPa (25 psid) On Air 20 SCCM (max) 20 SCCM (max) 20 SCCM (max)
Maximum Working Pressure, Checked Direction 280 Bar 280 Bar 280 Bar
Maximum Working Pressure Differential, Flow Direction 40 Bar 40 Bar 40 Bar
Screen Size N/A 125 micron 125 micron
Installation Force 680 kgf (max) 680 kgf (max) 680 kgf (max)
Materials
Component Material
Body 303 Stainless Steel
Cage 305 Stainless Steel
Pin 416 or 303 Stainless Steel
Spring 302 Stainless Steel
Ball 440C Stainless Steel or Ceramic
Screen 316 Stainless Steel
Flow Curves
Cross Section Views
Dimensional Views
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
Filter Part Numbers
FLOW DIRECTION
CRACKING PRESSURE
PART NUMBER
FLOW DIRECTION
LOHM RATE
CRACKING PRESSURE
Screen Included BALL MATERIAL Pin Material INSTALLATION HOLE DRAWING NUMBER Request Information
CCFM2800200S Forward 75 Lohms 0 kPa (No Spring) No 440C Stainless Steel 416 Stainless Steel 1INST003066S Request
CCFM2800204S Forward 75 Lohms 4 ± 3 kPa (0.6 ± 0.4 psid) No 440C Stainless Steel 416 Stainless Steel 1INST003066S Request
CCFM2800207S Forward 75 Lohms 7 ± 5 kPa (1 ± 0.7 psid) No 440C Stainless Steel 416 Stainless Steel 1INST003066S Request
CCFM2800214S Forward 75 Lohms 14 ± 5 kPa (2 ± 0.7 psid) No 440C Stainless Steel 416 Stainless Steel 1INST003066S Request
CCFM2800240S Forward 75 Lohms 40 ± 30 kPa (6 ± 4.4 psid) No 440C Stainless Steel 416 Stainless Steel 1INST003066S Request
CCFM2800269S Forward 75 Lohms 69 ± 30 kPa (10 ± 4.4 psid) No 440C Stainless Steel 416 Stainless Steel 1INST003066S Request
CCRM2800200S Reverse 75 Lohms 0 kPa (No Spring) No 440C Stainless Steel 416 Stainless Steel 1INST002350S Request
CCRM2800204S Reverse 75 Lohms 4 ± 3 kPa (0.6 ± 0.4 psid) No 440C Stainless Steel 416 Stainless Steel 1INST002350S Request
CCRM2800207S Reverse 75 Lohms 7 ± 5 kPa (1 ± 0.7 psid) No 440C Stainless Steel 416 Stainless Steel 1INST002350S Request
CCRM2800214S Reverse 75 Lohms 14 ± 5 kPa (2 ± 0.7 psid) No 440C Stainless Steel 416 Stainless Steel 1INST002350S Request
CCRM2800240S Reverse 75 Lohms 40 ± 30 kPa (6 ± 4.4 psid) No 440C Stainless Steel 416 Stainless Steel 1INST002350S Request
CCRM2800269S Reverse 75 Lohms 69 ± 30 kPa (10 ± 4.4 psid) No 440C Stainless Steel 416 Stainless Steel 1INST002350S Request
CCFM2803000S Forward 170 Lohms 0 kPa (No Spring) Yes 440C Stainless Steel 303 Stainless Steel 1INST003066S Request
CCFM2803014S Forward 170 Lohms 14 ± 5 kPa (2 ± 0.7 psid) Yes 440C Stainless Steel 303 Stainless Steel 1INST003066S Request
CCFM2803040S Forward 170 Lohms 40 ± 30 kPa (6 ± 4.4 psid) Yes 440C Stainless Steel 303 Stainless Steel 1INST003066S Request
CCFM2803069S Forward 170 Lohms 69 ± 30 kPa (10 ± 4.4 psid) Yes 440C Stainless Steel 303 Stainless Steel 1INST003066S Request
CCRM2803000S Reverse 130 Lohms 0 kPa (No Spring) Yes 440C Stainless Steel 416 Stainless Steel 1INST042755S Request
CCRM2803014S Reverse 130 Lohms 14 ± 5 kPa (2 ± 0.7 psid) Yes 440C Stainless Steel 416 Stainless Steel 1INST042755S Request
CCRM2803040S Reverse 130 Lohms 40 ± 30 kPa (6 ± 4.4 psid) Yes 440C Stainless Steel 416 Stainless Steel 1INST042755S Request
CCRM2803069S Reverse 130 Lohms 69 ± 17 kPa (10 ± 2.5 psid) Yes 440C Stainless Steel 416 Stainless Steel 1INST042755S Request
CCFM2800800S Forward 75 Lohms 0 kPa (No Spring) No Ceramic 416 Stainless Steel 1INST003066S Request
CCFM2800804S Forward 75 Lohms 4 ± 3 kPa (0.6 ± 0.4 psid) No Ceramic 416 Stainless Steel 1INST003066S Request
CCFM2800807S Forward 75 Lohms 7 ± 5 kPa (1 ± 0.7 psid) No Ceramic 416 Stainless Steel 1INST003066S Request
CCFM2800814S Forward 75 Lohms 14 ± 5 kPa (2 ± 0.7 psid) No Ceramic 416 Stainless Steel 1INST003066S Request
CCFM2800840S Forward 75 Lohms 40 ± 30 kPa (6 ± 4.4 psid) No Ceramic 416 Stainless Steel 1INST003066S Request
CCRM2800800S Reverse 75 Lohms 0 kPa (No Spring) No Ceramic 416 Stainless Steel 1INST002350S Request
CCRM2800804S Reverse 75 Lohms 4 ± 3 kPa (0.6 ± 0.4 psid) No Ceramic 416 Stainless Steel 1INST002350S Request
CCRM2800807S Reverse 75 Lohms 7 ± 5 kPa (1 ± 0.7 psid) No Ceramic 416 Stainless Steel 1INST002350S Request
CCRM2800814S Reverse 75 Lohms 14 ± 5 kPa (2 ± 0.7 psid) No Ceramic 416 Stainless Steel 1INST002350S Request
CCRM2800840S Reverse 75 Lohms 40 ± 30 kPa (6 ± 4.4 psid) No Ceramic 416 Stainless Steel 1INST002350S Request
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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.