Zhejiang, China
Business Type:
Manufacturer/Factory & Trading Company
Business Range:
Agriculture & Food, Chemicals, Industrial Equipment & Components, Instruments & Meters, ...
Management System Certification:
ISO 9001, ISO 14001
Main Markets:
North America, South America, Europe, Southeast Asia/ Mideast, Africa
OEM/ODM Availability:
OEM/ODM Service
Sample Available

ANSI Flanged Ball Valve, Trunnion Mounted Ball Valve, Full Bore Ball Valve manufacturer / supplier in China, offering ANSI Trunnion Mounted Ball Valve (GAQ47F), Cast Steel Split Body Standard Port Ball Valve (116), Cast Steel Split Body Reduced Ball Valve (GARQ41F) and so on.

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ANSI Trunnion Mounted Ball Valve (GAQ47F)

Get Latest Price
Min. Order / Reference FOB Price
10 Pieces US $50-19,000/ Piece
Port: Shanghai, China
Production Capacity: 10000PCS/Year
Payment Terms: L/C, T/T
Material: Carbon Steel
Connection Form: Flange
Driving Mode: Manual
Nominal Pressure: ANSI Class 150~2500
Channel: Straight Through Type
Structure: Fixed Ball Valve

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Basic Info

Model NO.: GAQ47F
Type: Fixed Ball Valve
Function: Blow-Down Valve, Relief Valve, Atmospheric Valve, Bypass-Valve
Temperature: Normal Temperature
Application: Industrial Usage
Trademark: GOOLE, OEM
Transport Package: Plywood Case
Origin: China(Mainland)
HS Code: 8481804090

Product Description

Ball of trunnion ball valve is fixed, it does not move with medium pressure. Trunnion ball valve has floating seats.  The seats move with the medium pressure to tight the ball and seal ring to ensure sealing reliability. Bearings could be mounted in top shaft and bottom shaft, which reduces operation torque. This is widely used in valves with high pressure and big sizes. To decrease the operation torque and increase sealing reliability, lubricated ball valves are adopted in recent years. A special sealant is injected between sealing faces of lubricated ball valve to create a layer. This increase the sealing reliability while decreasing the operation torque, which is better for high pressure, big sized ball valves.
Sealant Injection Device
Trunnion mounted ball valves are provided with devices for Sealant injection, which are on both the stem and seat for the trunnion ball valves of DN>150mm (NPS6), and in the body cavity for the valve of DN<125mm. When the O ring of stem or the body seat ring is damaged due to accident, the medium leakage between body and stem can be prevented by injecting the Sealant through the device.

Double Block and Bleed
Trunnion ball valve features the front ball sealing design structure. Each seat of the ball valve can separately cut off the medium at both upstream and downstream to achieve double block function. When the ball valve is closed, body cavity is segregated from both upstream and downstream even there is pressure at both ends. The medium left in the body cavity could increase the pressure to propel the seats. The medium could be bled out through the relief valve to ensure valve safety.

Anti-static Design
Except for the anti-static features floating ball valve has, the trunnion ball valve has more. The ball of the trunnion ball valve gets close contact with each other through the trunnion, adjusting cushion, and down-end cap, the passage of static electricity thus forms together with the valve, which may lead the static electricity caused by sparks generated by friction between the ball and seat during on and off performance to the ground to prevent the possible  risk of fire or explosion. 

Fire Safe Design
With the valve heated in a fire application, the nonmetal material parts such as seat sealing ring of PTFE,O ring for the stem, and sealing gasket for body and bonnet, might be damaged due to high temperature. CRV's special design of auxiliary metal to metal or the graphite seal is designed for the trunnion ball valve to effectively prevent both internal and external leakage of the valve in case of fire As required by customers, CRV's fire safe design for the trunnion ball valve meets the requirement of API 607, API 6Fa and BS 6755.

Design Feature: 
Trunnion Mounted. Side Entry/Top Entry. Independent Ball & Stem
Full Bore/Reduced Bore. Cast 2pcs Bolted Body /Forged 3pcs Bolted or Welded Body
Soft Insert Seat/Metal-to-Metal Seat
Anti-Blowout Stem. Fire Safe Design to API 6FA/607. Anti-static Device
Double Block & Bleed Function. With Vent and Drain Hole
Grease Injection on Stem & Seat . Extended Bonnet or Stem Optional
Design: API 6D  API 608  BS5351  ASME B16.34
Size: 2"-40".  Pressure Rating: 150Lb-2500Lb
Face to Face: API 6D ,ANSI B16.10
End Connection: RF RTJ/ANSI B16.5&ANSI B16.47,  BW (ANSI B16.25)
Body Material: WCB, A105 CF8, CF8M, CF3, CF3M, F304, F316, F304L F316L LCB LF2  F51.
Ball Coating:  ENP,Tungsten Carbide Coat (TCC), Chrome Carbide Coat (CCC)
Test: API 6D API 598. Marking: MS SP-25
Actuation: Lever, Worm Gear, Electrical, Pheumatic,Hydraulic 

Main Parts and Materials.

NoPart NameASTM Material
Carbon steel18Cr-19Ni-2MoLow temperature steel
6Stem insertClass filled PTFE
7Seat springA313-304Inconel X-750A313-304

13Grounding plungerA216-WCBA182-F316A182-F304
15NutA194-2HA194 8A194 4
17Trunnion bearing304+PTFE316+PTFE304+PTFE
18Gland flangeA193-B7A193-8A193-B7
19Gland boltA193-B7A193-B8A193-B7
20Stop plateCarbon steelCarbon steel+ZnCarbon stee

Main External Dimensions.
Sizein22 1/23468101214161820242628303236

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