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 Masthead](https://muellerrefrigeration.com/uploads/main-photo-check2.jpg)
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Style: Four-Bolt
CHECKMASTER® Four Bolt check valves feature forged brass bodies that exceed the most stringent quality standards in the industry and have been designed for easy removal and reassembly of internal components.
![Mueller Industries Photo](https://muellerrefrigeration.com/uploads/Style_cv_four_bolt.jpg)
Quality & Technical Information
- Design Pressure (DP) / Maximum abnormal pressure (MAP): 700 psig, 48 bar
- Continuous operating temperature (COT): -40°F/300°F, -40°C/149°C
- UL/cUL Recognized, Conforms to EU Pressure Equipment Directive and UK Pressure Equipment Regulation
- 100% tested
- Horizontal or vertical installation (not to be installed with bonnet facing down)
- "Y" type design provides minimal pressure drop and increased flow capacity
- Design features easy removal and reassembly of internal components
- Forged brass body exceeds the most stringent quality standards in the industry
Uses
- Refrigeration
- Air Conditioning
![Mueller Industries Graphic](https://muellerrefrigeration.com/uploads/logos-UL-cUL-CE-1.gif)
Specifications & Technical Drawings