ASTM A217 WC9 Globe Valve, ASME B16.34, 6 Inch, CL2500, PSB

Key Specifications / Features

The ASTM A217 WC9 Globe Valve features a pressure-sealed bonnet and is designed to meet ASME B16.34 and BS 1873 standards. With a 6-inch (DN150) size, Class 2500 LB (PN420) pressure rating, and BW ends, this valve provides robust performance in high-pressure applications. Handwheel operated for precise control, it is ideal for regulating flow in demanding industrial environments.

The Pressure Seal Globe Valve is engineered according to BS 1873 and ASME B16.34 standards, designed for high-temperature and high-pressure service, making it ideal for use in fossil fuel power plants. Unlike traditional bolted bonnet valves, the pressure seal design offers superior sealing reliability, providing a more compact, rigid, and cost-effective solution for high-temperature and high-pressure environments. The valve is designed with two openings for medium flow, oriented in the same direction at a 180° angle, ensuring optimal fluid movement.
For extended durability, both the seat and disc sealing surfaces are overlaid with iron-base alloy, cobalt-base alloy, or carbide alloy. For larger valve sizes, a main disc and vice-disc configuration is used to reduce operational torque and improve seat tightness performance, ensuring long-term reliability.

Technical Specifications

» Product: Pressure Seal Bonnet Globe Valve
» Nominal Diameter: NPS 2–24 Inch (DN50–DN600)
» Temperature Range: -29°C to 595°C
» Design Pressure: Class 600–2500 LB (PN10–PN420)
» Body Materials: ASTM A216 WCB, WCC, A352 LCB, A217 WC6, WC9, A351 CF8, CF8M, CF3, CF3M
» End Connections: RF, RTJ, BW
» Design and Manufacture: ASME B16.34, BS 1873
» Face to Face (End to End): ANSI B16.10
» Flanged Connections: ANSI B16.5
» Butt Welded Ends: ANSI B16.25
» Test and Inspection: API 598
» Backup Ring: Absorbs thrust applied by internal pressure
» Thrust Ring: Protects the soft metallic gasket from deformation
» Gasket: Unique angular design ensures superior sealing
» Medium: Water, Gas, Oil, etc.

Product Features

» Short stroke for quick open/close
» Relief cone = internal bypass for large size and high pressure
» Disc sealing: flat sealing or throttle cone (regulating disc)
» Body seat: threaded or welded
» Full Stellite overlay seat sealing surface
» Easy to maintain and suitable for manufacturing
» Back seat sealing structure
» Flexible woven graphite packing
» Reduced port