Safety Valves

Thermostatic Safety Relief Valve WCB 80 mm Class 300

Supreme Valves India — Thermostatic safety relief valve in WCB for steam boiler and autoclave service. Opens on over-temperature as well as overpressure for boiler and heat exchanger protection. DN80 (3 inch) Class 300 flanged RF. IBR and ASME Section I compliant options.

Key Applications

Boiler Over-Temperature ProtectionHeat Exchanger Thermal ReliefSuperheated Steam LinesAutoclave Safety
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Technical Specifications

Valve Type Thermostatic Safety Relief Valve
Nominal Size DN80 (3 inch)
Pressure Class ASME Class 300
Body Material ASTM A216 Gr. WCB
End Connection Flanged RF per ASME B16.5 / DIN EN 1092-1
Design Standard API 526
Sizing Standard API 520
Testing Standard API 527
Set Pressure Application specific — factory set and tested
Manufacturer Supreme Valves India

Material of Construction (MOC)

Component / Part Available Materials
Body / Bonnet ASTM A216 Gr. WCB
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

WCB Body Construction

Carbon Steel Cast body (ASTM A216 Gr. WCB) selected for steam boiler and autoclave service.

Class 300 Flanged RF

DN80 (3 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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