API 602 Forged Steel Gate Valve – NSW | Class 150 to 2500, 1/2”–2”

The NSW API 602 Forged Steel Gate Valve is a high-performance valve built for reliable shutoff in high-pressure, high-temperature, and corrosive environments. Manufactured in accordance with API 602 and ASME B16.34 standards, this valve features a robust forged body construction with rising stem, outside screw and yoke (OS&Y), and solid wedge gate design for enhanced strength and performance.

With size options from 1/2” to 2” (DN15–DN50) and pressure classes from Class 150 to Class 2500 (including Class 800), this valve supports a wide range of applications. It is available with bolted, welded, or pressure seal bonnet configurations and comes with end connections including socket weld (SW), butt weld (BW), threaded (NPT), and flanged (RF/FF).

Engineered for zero leakage and long-term durability, it features integral backseat, renewable seat rings, spiral wound gaskets, and solid wedge gate. Designed for critical applications where performance and safety are paramount, especially in oil & gas, chemical, steam, and power systems.

Specifications:

– Manufacturer: NSW (Newsway Valve)
– Valve Type: Forged Steel Gate Valve
– Size Range: 1/2" to 2" (DN15 to DN50)
– Pressure Class: Class 150 to Class 2500 (incl. Class 800)
– Temperature Range: Typically up to 593°C (material dependent)
– End Connections:
 • Flanged (ASME B16.5)
 • Socket Weld (ASME B16.11)
 • Butt Weld (ASME B16.25)
 • Threaded NPT (ANSI/ASME B1.20.1)
– Body Material Options:
 • A105, A182 F304, F304L, F316, F316L, F51, F53
 • A350 LF2, LF3, LF5
– Design Standards: API 602, ASME B16.34, BS 5352
– Face-to-Face: Manufacturer’s Standard
– Bonnet Types: Bolted, Welded, or Pressure Seal Bonnet
– Disc Type: Solid Wedge
– Stem Type: Rising Stem, OS&Y
– Operation: Manual (other options available)
– Seat: Renewable Seat Rings
– Gasket: Spiral Wound Gasket
– Fire Safe Design: Available per API 6FA, API 607
– Testing Standard: API 598
– Other Compliance: NACE MR-0175, MR-0103, ISO 15848
– Non-Destructive Tests: PMI, UT, RT, PT, MT

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