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Guoyue Hydraulic Equipment Manufacturing (jiangsu) Co., Ltd

  • China,Wuxi ,Jiangsu
  • Verified Supplier
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China Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire
China Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire

  1. China Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire

Q47 Series Trunnion Mounted Fixed Ball Valve with Double Block and Bleed, Fire

  1. MOQ: 1 piece
  2. Price:
  3. Get Latest Price
Nominal Pressure 250 bar (25 MPa)
Max Pressure 300 bar (Static)
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 -20°C to +80°C (Standard Seals)
Nominal Diameter 2" to 32" (DN50 - DN800)
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
Brand Name Guoyue
Place of Origin Jiangsu, China
Certification CE
Model Number customized

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  1. Product Details
  2. Company Details

Product Specification

Nominal Pressure 250 bar (25 MPa) Max Pressure 300 bar (Static)
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 -20°C to +80°C (Standard Seals) Nominal Diameter 2" to 32" (DN50 - DN800)
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
Brand Name Guoyue Place of Origin Jiangsu, China
Certification CE Model Number customized
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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

Company Details

Bronze Gleitlager

,

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 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2022

  • Total Annual:

    20Million-50Million

  • Employee Number:

    >50

  • Ecer Certification:

    Verified Supplier

Guoyue Hydraulic Equipment Manufacturing (Jiangsu) Co., Ltd. is a leading manufacturer specializing in High-Quality Hydraulic Cylinders.With over 10 years of industry experience , We have the most advanced oil cylinder buffering technology. We excel in providing comprehensive ODM and ... Guoyue Hydraulic Equipment Manufacturing (Jiangsu) Co., Ltd. is a leading manufacturer specializing in High-Quality Hydraulic Cylinders.With over 10 years of industry experience , We have the most advanced oil cylinder buffering technology. We excel in providing comprehensive ODM and ...

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Get in touch with us

  • Reach Us
  • Guoyue Hydraulic Equipment Manufacturing (jiangsu) Co., Ltd
  • China , Jiangsu , Wuxi , No. 1387, Qianhu Road, Hudai Town
  • https://www.hyd-cylinders.com/

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