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Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire-Safe & Anti-Static for High Pressure Applications
Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire-Safe & Anti-Static for High Pressure Applications
Specifications
Nominal Pressure :
250 bar (25 MPa)
Max Pressure :
300 bar (Static)
Pressure Rating :
Class 150 to 1500 / PN1.6 to PN16.0 MPa
Brand Name :
Guoyue
Place of Origin :
Jiangsu, China
MOQ :
1 piece
Connection Type :
Flanged (ASME B16.5), Butt-Weld (ASME B16.25)
Temperature Range :
-20°C to +80°C (Standard Seals)
Nominal Diameter :
2" to 32" (DN50 - DN800)
Certification :
CE
Model Number :
customized
Packaging Details :
Standard Export Package
Delivery Time :
12~60 days depends on products type
Payment Terms :
T/T
Supply Ability :
2500 Ton/Tons Per Year
Description
Q47 Series Trunnion Mounted Fixed Ball Valve
Product Overview

The Q47 Series Trunnion Mounted Ball Valve is a high-performance, industrial-grade valve designed for long-distance pipelines and high-pressure service. Unlike floating ball valves, the ball in this series is fixed by trunnions (bearings) at the top and bottom. This design ensures that the pressure of the medium is supported by the bearings rather than the valve seats, resulting in significantly lower operating torque and superior sealing reliability.

It is specifically engineered for large-diameter and high-pressure applications in oil, gas, and chemical transmission systems.

Key Features
  • Trunnion Mounted Design: Fixed ball construction reduces friction and operating torque, extending the life of the sealing seats.
  • Double Block and Bleed (DBB): Provides simultaneous upstream and downstream sealing, allowing the body cavity to be vented or drained safely while the valve is in the closed position.
  • Automatic Pressure Relief: The floating seats automatically release excess pressure in the body cavity to the downstream side, preventing dangerous pressure buildup.
  • Fire-Safe & Anti-Static: Complies with API 6D and API 607 standards, ensuring safety and integrity in hazardous environments.
  • Durable Materials: Available in Carbon Steel and a wide range of Stainless Steels (CF8, CF8M, CF3, CF3M) to handle both general and highly corrosive media.
Technical Specifications
Parameter Specifications
Design Standards API 6D, ASME B16.34, GB/T 12237
Nominal Diameter (DN) 2" to 32" (DN50 - DN800)
Pressure Rating Class 150 to 1500 / PN1.6 to PN16.0 MPa
Connection Type Flanged (ASME B16.5), Butt-Weld (ASME B16.25)
Temperature Range Standard: -28°C to 180°C / High Temp: Up to 300°C
Applicable Media Natural Gas, LPG, Water, Oil, and Corrosive Fluids
Material Configuration
Part Name Carbon Steel Version Stainless Steel Version
Valve Body WCB / A216-WCB CF8 / CF8M / CF3 / CF3M
Ball 1Cr18Ni9Ti / SS304 SS304 / SS316 / SS316L
Valve Stem 2Cr13 / A276-410 SS304 / SS316 / SS316L
Sealing Seat PTFE / Nylon / PEEK Reinforced PTFE / Metal-to-Metal
Packing / Gasket Flexible Graphite / PTFE Flexible Graphite / PTFE
Ordering Information

To ensure the correct configuration for your project, please specify:

  1. Valve Model: Q47 (2-Piece or 3-Piece)
  2. Nominal Size & Pressure Rating
  3. Body & Trim Materials
  4. Medium & Operating Temperature
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Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire-Safe & Anti-Static for High Pressure Applications

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Product Detail
Nominal Pressure :
250 bar (25 MPa)
Max Pressure :
300 bar (Static)
Pressure Rating :
Class 150 to 1500 / PN1.6 to PN16.0 MPa
Brand Name :
Guoyue
Place of Origin :
Jiangsu, China
MOQ :
1 piece
Contact Supplier
Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire-Safe & Anti-Static for High Pressure Applications

Guoyue Hydraulic Equipment Manufacturing (jiangsu) Co., Ltd

Verified Supplier
1 Years
jiangsu, wuxi
Since 2022
Business Type :
Manufacturer
Main Products :
Custom Hydraulic Cylinder, Hydraulic Cylinder, Double Acting Hydraulic Cylinder
Total Annual :
20Million-50Million
Employee Number :
>50
Certification Level :
Verified Supplier
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