CHECKMASTER Check Valves

The CHECKMASTER check valves from Mueller Refrigeration are designed for use with R744 refrigerant. Available sizes ranging from 1/4” to 7/8” for maximum abnormal pressure 140 BAR /1305 PSI pressure ratings at continuous operating temperature of -40°C to 149°C / -40°F to 300°F.

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CHECKMASTER Check Valves for Transcritical application and pressures up to 140 bar. The CHECKMASTER check valves are engineered by Mueller Refrigeration to exceed the most stringent quality standards, and they are recognized with Underwriters Laboratories (UL) and conform to Pressure Equipment Directive 2014/68/EU.

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Refrigerants

R744

Connection dimensions

¼”, 3/8”, ½”, 5/8”, ¾”, 7/8”, 6mm, 8mm, 10mm

Max operating pressures

140 bar, 2031 psig

Material

Brass

Certification

UL/cUL Recognized

Application

Air Conditioning and Refrigeration

Region

,

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