3 inch gear operated WCB cast steel pressure seal flanged gate valve Class 1500

3″ Class 1500 WCB Pressure Seal Gate Valve (PSB) | Gear Operated for High-Pressure

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Designed specifically for extreme services, this heavy-duty Class 1500 gear operated gate valve features a highly reliable Pressure Seal Bonnet (PSB). As a premium API 600 pressure seal bonnet gate valve, it utilizes the pipeline’s internal pressure to create an absolute tight seal—the higher the pressure, the tighter the isolation. Engineered as a dedicated power plant high temperature gate valve, this high pressure PSB gate valve provides effortless torque control via a robust bevel gear operator, making it the ultimate shut-off solution for severe-service refineries and supercritical power generation.

🏭 Engineering & Customization Specifications:

  • End Connections: Flanged (RTJ) or standard ASME B16.25 butt weld gate valve ends for absolute leak-proof high-pressure integration.
  • Pressure Rating: Class 900 to Class 2500 (Strictly PSB Design).
  • Body Materials: WCB, WC6/WC9 (Chrome-Moly for high temp), LCB, CF8M, Duplex.
  • Operation: Heavy-duty Bevel Gear, Pneumatic, or Electric Actuator ready.
Category: Tags: , , , ,
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

The Pressure Seal Advantage: Unlike standard bolted bonnets, our Pressure Seal Bonnet (PSB) design utilizes the pipeline’s internal pressure to create an absolute tight seal. As system pressure increases, the sealing force mechanically intensifies, ensuring zero-leakage isolation in critical high-pressure and high-temperature applications.

Typical Chemical Composition (ASTM A216 WCB)

Grade C% Mn% Si% P% S% Cr% Ni%
WCB ≤0.30 ≤1.00 ≤0.60 ≤0.040 ≤0.045 ≤0.50 ≤0.50

Main Dimensions & Weight (Class 1500)

Size (Inch) DN 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 (RF) – Note: RTJ/BW dimensions available upon request.
  • D: Flange OD | D1: Bolt circle | D2: Raised face | b: Min. flange thickness | Z-Φd: Bolt holes

⚡ Heavy-Duty Actuation Solutions

High-pressure Class 1500 valves require significant operating torque. While supplied with a standard bevel gear operator, this valve is fully prepared for automated pipeline integration:

  • Motorized Actuators: Intelligent multi-turn electric actuators for high-torque remote control via DCS.
  • Mounting: ISO 5210 standard top flange for seamless actuator integration.

🌐 Quality Assurance & Global Standards

Engineered for severe service, every PSB gate valve undergoes strict quality control:

  • Standards: ASME B16.34, API 600, ASME B16.5, ASME B16.25 (Butt Weld ends).
  • NDT Testing: Radiographic (RT), Magnetic Particle (MT), and Penetrant Testing (PT) available per ASME B16.34.
  • Material Traceability: 100% EN 10204 3.1 MTC provided. WC6, WC9, and C5 alloys available for high-temp power plant operations.
Design Feature

Gear Operated, Pressure Seal Bonnet
End Connection

Flanged, RTJ
Material

WCB
Pressure Class

Class 1500

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