Control and shut-off valves oxygen

Valves for oxygen applications

The adiabatic compression that may occur when a valve is closed or opened in an uncontrolled manner or just the presence of compressed oxygen alone can lead to a combustion reaction. This is relevant in particular to non-metallic material such as seals or lubricants. Modified Hy-Lok valves for use with compressed oxygen are available to reduce this type of risk for people and equipment. These valves have been approved by a Notified Body.

Needle valve – NV OS Series

Application

A selection of modified versions of NV Series valves with control spindle tips allow highly compressed oxygen to be shut-off and regulated in a controlled manner.

Safe shut-off for oxygen applications

The following versions in stainless steel 316 are available for a maximum working pressure of 200 bar and a maximum medium temperature of 60 °C.

TECHNICAL DATA

Pressure/temperature (oxygen):	Up to 200 bar (2900 psi) at 60 °C (140 °F)
Material:	Stainless steel 316
Seal material:	Modified PTFE

Temperature fluctuations can necessitate adjustment of the gland packing.

VERSIONS

Control cone

TESTS

In accordance with EN ISO 10297
Nitrogen at 69 bar (1000 psi) with a max. leak rate of 0.1 SCCM
Hydrostatic test of the housing at 1.5 times the permissible working pressure
Other tests on request

DOWNLOADS

Regulating and Shut-off Valves Series NV OS, 2019-05 [163 KB]

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