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Pressure Relief Valves

855 Series 316L Press-in Pressure Relief Valve With Ceramic Ball

This cartridge safety pressure relief valve is constructed with medical grade 316L stainless steel and a ceramic ball for improved compatibility with aggressive fluids like hydrogen. It is designed specifically for installation into plastic housings, fittings, or soft tubing and can be installed in either direction to provide forward or reverse flow capabilities. Featuring a high quality metal seat, this direct-acting valve delivers low leakage, repeatable cracking pressure, low hysteresis, and long life. The valve is 100% functionally tested to ensure performance.

Key Product Facts
  • Mounting Configuration:Press-In - Into Plastic
  • Diameter:7.92 mm
  • Full Open Lohm Rate:75 Lohms
  • Maximum Working Pressure:Dependent on Housing Material
  • Relief Pressure Range:100 to 200 kPa

Product Information

General Performance
CHARACTERISTIC SPECIFICATION
Full Open Lohm Rate 75 Lohms
Leakage 20 SCCM (max) at 172 kPa (25 psid) on Air
Maximum Working Pressure Dependent on Housing Material, Configuration, and Operating Conditions
Materials
COMPONENT MATERIAL
Body 316L Stainless Steel
Cage 316L Stainless Steel
Spring 316L Stainless Steel
Ball Ceramic
Flow Curve
Cross Section View
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 LOHM RATE CRACKING PRESSURE BALL MATERIAL INSTALLATION HOLE DRAWING NUMBER APPROXIMATE WEIGHT Request Information
CCPI8040100S 75 Lohms 100 +/- 15 kPa (14.5 +/- 2.2 psid) Ceramic 1INST006304S 1.8 grams Request
CCPI8040150S 75 Lohms 150 +/- 22.5 kPa (21.8 +/- 3.3 psid) Ceramic 1INST006304S 1.8 grams Request
CCPI8040200S 75 Lohms 200 +/- 30 kPa (29 +/- 4.4 psid) Ceramic 1INST006304S 1.8 grams Request
Cracking pressure is defined as the pressure at which uprun flow exceeds 50 SCCM of air.

Installation & Accessories

Installation & Manufacturing Tools
Replacement Parts & Accessories
PART NUMBER DESCRIPTION
CCRT0900180S 855 Series Press-In Installation Tool
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