3-Inch WCB Pressure Seal Gate Valve Class 1500 Gear Operated

Designed specifically for extreme high-pressure and high-temperature services, this heavy-duty 3-Inch WCB Cast Carbon Steel Gate Valve features a highly reliable Pressure Seal Bonnet (PSB). Unlike traditional bolted bonnets, the pressure seal mechanism utilizes the line pressure to create a tighter seal—the higher the internal pressure, the tighter the seal. Equipped with a robust bevel gear operator for effortless control, it is the ultimate shut-off solution for power plants, offshore platforms, and severe-service oil refineries.

🏭 Direct Manufacturer Customization:

  • Size Range: 2″ to 24″ (DN50 – DN600)
  • Pressure Rating: Class 900 to Class 2500 (PSB Design)
  • Body Materials: WCB, WC6, WC9, LCB, CF8M, Duplex Stainless Steel, etc.
  • Bonnet Type: Pressure Seal Bonnet (PSB).
Design & Manufacture API 600 / ASME B16.34
Face-to-Face Dimension ASME B16.10
Flange Connection ASME B16.5 (RF / RTJ) / ASME B16.25 (BW)
Body Material WCB (Cast Carbon Steel)
Bonnet Type Pressure Seal Bonnet (PSB)
Pressure Rating Class 1500
Operation Bevel Gear Operator

Main Dimensions & Weight (Class 1500)

Size (Inch) DN (mm) L (RF) D D1 D2 b Z-Φd
2″ 50 368 215 165.1 92 38.1 8-Φ25
3″ 80 470 265 203.2 127 47.7 8-Φ32
4″ 100 546 310 241.3 157 53.9 8-Φ35
6″ 150 705 395 317.5 216 82.6 12-Φ38
8″ 200 832 485 393.7 270 92.1 12-Φ44
10″ 250 991 585 482.6 324 108 12-Φ51
12″ 300 1130 675 571.5 381 124 16-Φ54
  • L: Face to Face distance (RF) – Note: RTJ dimensions vary slightly.
  • D: Flange outer diameter
  • D1: Bolt circle diameter
  • D2: Raised face diameter
  • b: Minimum flange thickness
  • Z-Φd: Number of bolt holes – Hole diameter
Design Feature

Gear Operated, Pressure Seal Bonnet

End Connection

Flanged, RTJ

Material

WCB

Pressure Class

Class 1500