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Technical Information Fig. No. 573

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Article

The Type ‘GC’ Fig. No. 573 Surplus Valve is single seated, piston assisted and spring regulated.

The system pressure being relieved acts upon the piston and provides control of the valve opening in accordance with the regulating spring setting.

A better control of pressure and flow is provided for installations where a direct spring loaded type is too insensitive.

Protects systems from overpressure

Monitors pump outputs

For water, air, gas, oil or chemical services.

Dimensions (mm)

Valve Size 15 20 25 32 40 50
'A' 140 140 140 137 160 180
'B' 51 51 51 67 70 85
'C' 337 337 337 328 330 325
Mass / Kg 8 8 8 11 13 15

Specifications

Connections B.S.P./N.P.T. Female
Working Pressure 3500 kPa
Adjustable Ranges 700-1700, 1400-3500 kPa
Temp. Range 0 - 90oC

Materials

Body etc Bronze AS 1565/836B
Spring Cage Bronze AS 1565/836B
Piston & Spindle Seal Nitrile
Valve, Spindle & Seat Grade 316 Stainless Steel
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