937202 1/4 HENRY SCHRADER BALL VALVE

Applications

Ball valves are used in a wide variety of air conditioning and refrigeration applications. They can be used for both liquid and gas applications. This type of valve is commonly used for isolating purposes. All ball valves are suitable for HCFC and HFC refrigerants, along with their associated oils. The MWP of most valve sizes also allows them to be used for R410A and sub-critical CO2 applications.

Main features

Construction features

Bi-directional flow
Indicator on stem shows valve position - open or closed
Fully opened or closed with quarter turn of stem
Positive stem stop ensures precise positioning in the open or closed position

Blow-out proof stem
Ball cavity vented to prevent over-pressure
Vented seal cap
Schrader valve option

Sealing integrity features

Premium quality PTFE ball seals
Double O-ring stem seal design
Premium quality neoprene stem O-ring seals
Seal cap gasket bonded into valve body ÔÇô acts as a secondary seal

Technical Specification

Allowable operating temperature = -40oC to +120oC
Allowable operating pressure = 0 to 40 barg or 0 to 46 barg,
depending on part number.

Materials of Construction

The components; valve body, valve body adaptor, ball and seal cap are made from brass. The stem is made from plated steel. The pipe extensions are made from copper. The ball seals are made from virgin PTFE, stem O-rings from neoprene and the seal cap gasket from nylon.

Installation Main Issues

The valve body must be protected against excessive heat during
installation, to prevent damage to the seals. Full instructions are given
in the Product Instruction Sheet, included with each valve.