Engineered to exceed
the most stringent quality standards.

Mueller Refrigeration offers a complete line of Inline, Four Bolt, and Magnetic check valves. Inline check valves are designed for maximum flow and minimum pressure drop; Four Bolt check valves that can overheat and damage internal components.

Check Valves
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Style: Piston

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Quality & Technical Information

  • Design Pressure (DP) / Maximum abnormal pressure (MAP): Up to 1305 psig
  • Continuous operating temperature (COT): -40°F/300°F, -40°C/149°C
  • UL/cUL Recognized, Conforms to Pressure Equipment Directive 2014/68/EU
  • Enhanced internal design for maximum flow and minimum pressure drop
  • 1/4" - 1/2" sized valves are designed for use with R744 (CO2)
  • 5/8" - 7/8" sized valves are designed for use with R744 in cascading systems or secondary loops where design pressures are below the R744 critical pressure of 1058 psi

Uses

  • Air Conditioning
  • Refrigeration
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Specifications & Technical Drawings

  • Piston Style - Dimensions - English

    PDF

  • Piston Style - Dimensions - Chinese

    PDF

  • Piston Style - Dimensions - Spanish

    PDF

  • General Valve Price List

    PDF

  • Product Compatibility with Refrigerants and Refrigeration Oils

    PDF