Wika Model 910.13 Overpressure Protector, Adjustable

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Model 910.13

Overpressure Protector, Adjustable

Applications

Adjustable overpressure protectors are intended to protect pressure gauges against the effect of pressures exceeding their maximum pressure rating
Stainless steel version for corrosive pressure media, even in corrosive ambience
Process industry: mechanical engineering and plant construction, chemical/petro-chemical, power stations, mining, on- and offshore, environmental technology

Special Features

Design with pressure connection form A resp. form B
7 different setting ranges selectable
Nominal pressure up to 600 bar
Overpressure safe up to 1,000 bar
Vacuum safe

Description

The overpressure protector consists of a spring loaded piston valve. Under normal pressure conditions the spring holds the valve open. When the system pressure exceeds the set pressure, the force exerted by the spring is overcome and the valve closes. The valve will remain closed until the system pressure drops approx. 25 % below the closing pressure, where-upon the force of the spring will open the valve.
Factory setting see data sheet.

To change setting:
Turn adjusting screw clockwise ⇒ closing pressure higher
(or anticlockwise ⇒ closing pressure lower)

Overpressure protectors must not be used as control devices!

Settings with factory mounting
The protector is set to 1.1 x maximum scale value when ordered together with a pressure gauge.

Standard features

Pressure connection
Form A: G ½ male / female
Form B: ½ NPT male / female
(see dimensions page 2)

Valve body (wetted part)
Material brass (with union nut from steel, rust-protected) or stainless steel (with union nut from stainless steel 1.4571) selectable.

O-Ring
FPM

Operating Temperature
+80 °C maximum

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