Gold Member Since 2014
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Fangyuan Valve Group Co., Ltd.

Floating Ball Valve, Welded Ball Valve, Flange Ball Valve manufacturer / supplier in China, offering Forged Trunnion Mounted Ball Valve, Metal Seated Trunnion Mounted Ball Valve, API 6D Fully Welded Pipeline Ball Valves and so on.

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Supplier Homepage Product Trunnion ball valve Forged Trunnion Mounted Ball Valve

Forged Trunnion Mounted Ball Valve

FOB Price: Get Latest Price
Min. Order: 1 Piece
Port: Shanghai, China
Production Capacity: 5000PCS/Month
Payment Terms: L/C, T/T, D/P, Western Union, Paypal, Money Gram

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Basic Info
  • Model NO.: API 6D
  • Connection Form: Flange
  • Nominal Pressure: ANSI CLASS 150-900
  • Structure: Fixed Ball Valve
  • Function: Blow-Down Valve, Relief Valve, Atmospheric Valve, Bypass-Valve
  • Application: Industrial Usage, Water Industrial Usage, Household Usage
  • Transport Package: Plastic+Plywood Case
  • Origin: China
  • Material: Carbon Steel
  • Driving Mode: Worm Gear
  • Channel: Straight Through Type
  • Type: Fixed Ball Valve
  • Temperature: Normal Temperature
  • Trademark: FYV
  • Specification: API/ISO/CE
  • HS Code: 8481804090
Product Description
Design standard: API 6D
Length of structure: API 6D/ASME B16.10.
Flange connecting end: ASME B16.5/ASME B16.47
Butt welding connecting end: ASME B16.25/ ASME B31.8
Fireproof test: API 607/API 6FA
Inspection and test: API 6D
Pressure and temperature rating: ASME B16.34
Product scope: NPS 1-1/2″~NPS 60″, CL150~CL2500
Main body material: A105, LF2 etc.
Valve seat material: PTFE, RPTFE, NYLON, DEVLON, PEEK etc.
Drive device: Handle, worm wheel, electric, pneumatic, etc

Main Feature
Urgent grease injection device
According to customer s' requirement, the trunnion ball valves made by our company are provided with devices for urgent grease injection, which are on both the stem and seat for the trunnion ball valves of DN >150mm (NPS), 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 sealing grease through the device.
Double-block and bleed functions
In general, our company's trunnion ball valve features the front ball sealing design structure. Each seat of the ball valve can separately cut off the medium at both inlet and outlet of the valve to realize double-block functions. When the ball valve is closed, body cavity and two of the body ends can be blocked with each other even if both the inlet and outlet are under pressure, when the medium left in the body cavity might be bled through the relief valve.
Fire safe design
With the valve heated in a fire application, the non-metal 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. Our company's special design of auxiliary metal to metal or the graphite seal is provited fo rthe trunnion ball valve to effectively prevent both internal and external leakage of the valve. As required by customers, our company's fire safe design for the trunnion ball valve meets the requirement of API 607, API 6Fa, BS 6755 and JB/T 6899.
Self-relief in the body cavity
As the liquid medium left in the body cavity gasifies due to increased temperature, the pressure in the body cavity becomes abnormally higher, when the medium itself in the cavity would propel the seat and self-relieves the pressure to ensure the safety of valve.

Our Advantages:
1. We Are Factory: FYV has 3 production bases and 1 foundry which located in Wenzhou, Shanghai and Lishui city of China. The Factory Size in Square Meters: 110, 000. FYV has over 600 staff members, more than 60 technical engineers, a digital process center and more than 350 sets of various middle and large equipments. The annual sales revenue reaches above $80 million US Dollars.
2. Regional Sales: We provide specialized sales service refers to different kind of region all over the world. Each sales team member is good at the local language and well experienced to the responsible market. For example: Russian, German, Spanish, Japanese, etc.
3. Low MOQ: Our factory owns the casting company by itself. We are always ready for providing the sample and producing some small orders, in order to meet the business well.
4. OEM Accepted: We can make the products with the client's demand standard or the custom requirement.
5. Complete Service: We are always ready to hear from you, be responding to your enquiry immediately. Our trade manager is always online for you.
6. Good Quality: We have strict quality control system and amounts of testing equipments for different kind of valve, such as size, pressure, working environment etc. We are winning the market reputation with the time goes by.
7. Quick Delivery: We have the large stock for some hot products.
8. Competitive Prices: We are the manufacturing company which not only has our own manufacturing workshop, but the casting company as well. We provide the straight factory price and service to our customer.
No.Parts NameMaterials
  Carbon Steel  Low Tem. Steel  Stainless Steel
1Body mid sectionASTM A105ASTM A350-LF2/LF3ASTM A182-F304/F316
2ScrewASTM A193-B7/B7MASTM A320-L7ASTM A193-B8/B8M
3O-ringNBR/VitonVitonViton
4TrunnionASTM A105+ENPASTM A182-F304ASTM A182-F304/F316
5Sliding bearing304+PTFE304+PTFE304+PTFE/316+PTFE
6BallASTM A105+ENPASTM A350-LF2+ENPASTM A182-F304/F316
7Gasket304+Graphite304+Graphite304+Graphite/316+Graphite
8NutASTM A194-2H/2HMASTM A194 4ASTM A194-8/8M
9BoltASTM A193-B7/B7MASTM A320 L7ASTM A193-B8/B8M
10Body side sectionASTM A105ASTM A350-LF2/LF3ASTM A182-F304/F316
11SeatPTFE/RPTFE/NYLONPTFE/RPTFE/NYLONPTFE/RPTFE/NYLON
12Spring17-7PH/Inconel17-7PH/Inconel17-7PH/Inconel
13Fire safe packingGraphiteGraphiteGraphite
14Seat ringASTM A105+ENPASTM A350-LF2+ENPASTM A182-F304/F316
15StemASTM A182-F6aASTM A182-F304ASTM A182-F304/F316
16Thrust washer304+PTFE304+PTFE304+PTFE/316+PTFE
17Packing caseASTM A105ASTM A350-LF2ASTM A182-F304/F316
18PackingGraphiteGraphiteGraphite
19sealant injectionANSI 1045ASTM A182-F304ASTM A182-F304/F316
20PinANSI 1045ANSI 1045304/316
21GlandASTM A105ASTM A350-LF2/LF3ASTM A182-F304/F316
22Drain plugANSI 1045ASTM A182-F304ASTM A182-F304/F316
23Release valveANSI 1045ASTM A182-F304ASTM A182-F304/F316
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