The best ball valves
in the business.

CYCLEMASTER® ball valves feature full port construction, environmentally friendly, chromium-plated balls for reduced wear and extended seal life, and our exclusive MCM™ seals for industry-leading longevity and low leak rates. Optional features include access ports, brass and valox seal caps, three-way body styles, and motorized actuators to provide local or remote operation.

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Ball Valves: Transcritical 140 Bar 180° with Access

Mueller Refrigeration announces the release of a new ball valve series designed to address the market requirements for operating pressures and temperatures above the critical point for CO2.

Mueller Industries Photo

Quality & Technical Information

  • Design Pressure (DP) / Maximum abnormal pressure (MAP): 2031 psi, 140 bar
  • Continuous operating temperature (COT): ‐40°F/300°F, ‐40°C/149°C
  • For R‐744 with POE and PAG oil
  • Brass body with copper‐iron alloy connections
  • Bleed hole in ball minimizes potential for liquid entrapment
  • Full port construction to match line size
  • Rupture‐proof, internally‐loaded stem
  • Specially selected o‐ring material compatible for CO2 operating conditions
  • Access port, 1/4" flare with P 25998XHP valve core included in package
  • Fully reversible after installation to shut‐off full pressure differential from either side


  • Refrigeration
  • Air Conditioning

Specifications & Technical Drawings

  • Transcritical CO2, 140 bar 180° with Access Port - Dimensions - English / Metric