Specification

High Temperature Pressure Resistance Stainless Steel Globe Valve

I. Product Overview

NEWWAY high-temperature high-pressure globe valves comply with ASME B16.34 and GB/T 12235 standards, constructed from A105 forged carbon steel and WC6/WC9 cast steel for extreme conditions. The lift-type disc enables precise cutoff and flow regulation, covering DN15-DN300 (1/2″-12″) with Class 150-Class 2500 (PN20-PN420) pressure ratings and -29℃~600℃ temperature range, suitable for steam, hot oil, and syngas in petrochemical, power, and metallurgical industries.

II. Core Technical Parameters

Specifications & Operating Range

Nominal Diameter: DN15/20/25/40/50/80/100/150/200/250/300 (1/2″-12″)

Pressure Class: Class 150/300/600/900/1500/2500 (PN20/PN50/PN100/PN150/PN260/PN420)

Temperature Range: -29℃~425℃ (A105 carbon steel), -29℃~600℃ (WC9 cast steel)

Materials & Sealing System

Body/Bonnet: A105 forged carbon steel (tensile strength ≥485MPa), WC6/WC9 cast steel (high-temperature strength ≥240MPa@550℃)

Disc/Seat: STL6 hard alloy overlay (HRC58-62), sealing surface roughness Ra≤0.2μm

Packing: Flexible graphite braided packing (resists 600℃) + metal wound gasket, leakage rate ≤1×10⁻⁶cc/s (API 598)

Connections: Flanged (RF/RTJ face, ASME B16.5), butt-welded (BW, ASME B16.25)

Actuation & Operation

Actuation: Manual (gearbox standard), electric (explosion-proof actuator), pneumatic (piston cylinder)

Operating Torque: DN100 manual ≤180N·m, electric actuation time ≤15s (Class 600)

Protection Grade: IP67 (body), Ex d IIB T6 (explosion-proof electric)