NSW Pressure Sealed Bonnet Gate Valve – Class 150 to 2500, NPS 2″–48″

The NSW Pressure Sealed Bonnet Gate Valve is engineered for critical service applications in high-pressure and high-temperature environments, featuring a robust pressure seal bonnet for secure, leak-free performance. This valve is ideally suited for power generation, petrochemical, and oil & gas pipeline systems where reliable isolation is required.

Built from high-grade cast materials including stainless steels, alloy steels, and exotic alloys, it offers broad compatibility with aggressive media and demanding thermal cycles. The valve is available with bolted or pressure-sealed bonnets, rising or non-rising stems, and fully guided solid or flexible wedges. Optional end connections include flanged, butt weld, socket weld, or threaded ends.

Specifications:

– Valve Type: Pressure Sealed Bonnet Gate Valve
– Size Range: NPS 2″ to NPS 48″ (DN50 to DN1200)
– Pressure Ratings: Class 150 to Class 2500
– Temperature Range: –60℃ to +450℃
– End Connections:
 • Flanged: ASME B16.5 / B16.47 / MSS SP-44
 • Socket Weld: ASME B16.11
 • Butt Weld: ASME B16.25
 • Screwed: ANSI/ASME B1.20.1
– Body Materials (Casting):
 • A216 WCB, WC6, WC9
 • A350 LCB
 • A351 CF8, CF8M, CF3, CF3M
 • A995 4A, 5A, 6A
 • Optional: Alloy 20, Monel, Inconel, Hastelloy
– Design & Manufacturing Standards:
 • API 600, API 603, ASME B16.34
 • Face-to-Face: ASME B16.10
– Testing & Inspection:
 • API 6D, API 598
 • Optional: NACE MR-0175, MR-0103, ISO 15848
 • Other: PMI, UT, RT, PT, MT
– Fire Safe Design: API 6FA, API 607

For further specifications or to inquire about this equipment and ReflowX's logistics services, Please contact ReflowX at info@reflowx.com