Steam Equipment

Self-Acting Pressure Reducing Valve WC6 25 mm Class 150

Supreme Valves India — Self-actuating internally piloted pressure reducing valve in WC6 for high-temperature steam let-down to 538 deg C. Maintains constant downstream pressure without external power. DN25 (1 inch) flanged or screwed Class 150. 20:1 pressure reduction ratio; Class IV shutoff.

Key Applications

Steam Pressure ReductionPlant Air Header ControlProcess Steam DistributionHeater Supply ControlGas Pressure Reduction
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Technical Specifications

Valve Type Self-Acting Pressure Reducing Valve
Nominal Size DN25 (1 inch)
Pressure Class ASME Class 150
Body Material ASTM A217 Gr. WC6
End Connection Flanged RF per ASME B16.5 / DIN EN 1092-1
Design Standard EN 1567 / ASME B16.34
Sizing Standard Engineering sizing per flow and differential
Testing Standard API 598 / EN 12266
Set Pressure Application specific — factory set and tested
Manufacturer Supreme Valves India

Material of Construction (MOC)

Component / Part Available Materials
Body / Bonnet ASTM A217 Gr. WC6
Trim / Internals SS 304 / SS 316 per service
Spring / Diaphragm SS 302 / SS 316 / Inconel per temperature
Gasket Aramid fibre, non-asbestos or spiral wound SS316/graphite

Purchase Options

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Features & Benefits

WC6 Body Construction

Alloy Steel 1.25Cr-0.5Mo body (ASTM A217 Gr. WC6) selected for high-temperature steam let-down to 538 deg C.

Class 150 Flanged RF

DN25 (1 inch) raised-face flanged end connections for direct pipeline installation.

Export Documentation

Supplied with EN 10204 3.1 MTC, hydrostatic test report, and set-pressure certificate.

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