Introduction

Heldon packless line valves (Diaphragm Valves) are used to isolate an individual line, component or part of refrigeration or air-conditioning system.  They are engineered to offer both long life and precise sealing making them the ideal choice as a long term positive isolation valve.

Heldon packless line valves feature a forged brass body with maximised port sizes for a greater flow and lower pressure drop. Three stainless steel diaphragms separate the stem from the seat ensuring the valve’s longevity and preventing leakage during the life of the valve. The valve seat is made from a polyamide nylon ensuring a complete shut off with minimal pressure applied.

Suitable for all fluorinated refrigerants they are available in two distinct designs. Standard for medium duty, and Heavy Duty for applications that require high usage and greater flow rate as well as being fully serviceable. Service kits are available as a standard part for the Heavy Duty valves.

Heldon also manufacture a three way version of the heavy duty valve, the branch is able to be isolated while the flow always continues across the straight connections.

Features

Designed for maximum flow and minimal pressure drop.
Solid copper extended connectors.
Three stainless steel diaphragms.
Integral mounting bracket.
Available in two versions, Standard (Brass and Plastic handles) and Heavy duty (Brass handle only).
Safe working pressure of  4,200 kpa (R-410a compatible)
Polyamide nylon valve spindle seat.
Compatible will all fluorinated refrigerants and Oils.
Complete shut off with minimal torque.