Introduction

Service valves are used in refrigeration and air-conditioning systems to allow a manufacturer to seal a section of a unit for shipping as well as the safe servicing of the unit once installed.

Heldon Service Valves offer optimum flow characteristic and positive shutoff that both front and backseat. The Heldon / Mueller range are specially engineered to maximise the body chamber and optimise flow while minimising intrusion of the seat and stem mechanism in the back seat position, thereby reducing pressure drop.

The brass bodies are forged or machined with copper extensions and all valves feature an isolatable access port. Available in a straight through offset square body version that has a tapped base for mounting and a right angle flange mount. These valves can be made to order in special configurations based on quantity.

Mueller cast iron service /compressor valves offer the complete isolation and high flow rates. They feature a specially designed valve plate mechanism for screw compressors that has eliminated the issues faced by other valve manufactures.

Features

Designed for maximum flow and minimal pressure drop.
Strong forged brass body.
Integral mounting bracket.
Available as made to order for OEM’s.
Safe working pressure in excess of 4,200 kpa
(R-410a compatible)
Mueller valve plate mechanism.
Complete with flange, bolts and brass spigot and gasket
Compatible will all fluorinated refrigerants and Oils.
Safe to use with screw compressors.
Complete kit for easy installation.