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Wenzhou Goldtop Valve Co.LTD
Gold top valve located in Oubei Town, Wenzhou, China,where can make all kinds of precision balls,including top entry,metal seat and V type balls.On this base,our products range of floating,trunnion
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Forged Steel Trunnion Mounted Ball Valve API 6D 1" - 48" Flange Anti-fire safe DBB

Wenzhou Goldtop Valve Co.LTD
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Forged Steel Trunnion Mounted Ball Valve API 6D 1" - 48" Flange Anti-fire safe DBB

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Brand Name : GOLD TOP VALVE

Model Number : Trunnion Mounted Ball Valve

Place of Origin : CHINA

MOQ : 1

Payment Terms : L/C, T/T

Connection Form : Flange

Material : Carbon Steel

Nominal Pressure : ANSI CLASS 150-900

Media : Oil

Standard : API 6D

Function : Blow-Down Valve, Relief Valve

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Forged steel trunnion mounted ball valve


1.Forged ball valve feature
forged ball valve,the forging material can ensure sufficient rigidity and strength under maximum rated operation pressure without inherent flaw of cast. Enough wall thikness of separate body and adaptation of high strength tie bolts are convenient for valve maintenance and sufficient to bear the stress of pipe.The internal parts of valve are carefully designed and selected to ensure reliability under all kinds of work condition.

2.Anti-fire safe design
When the trunnion ball valve be used normally,its sealed by seat and ball surface,seat retainer sealed by O-ring and body,this is soft sealed and reliable sealing.When the seat and O-ring are burnt,the seat retainer and body will be sealed by expanded graphite.Thus act anti-fire safe purpose.

3.Anti-static device
In order to prevent friction among ball,stem and PTFE that generates static electricity which may light the combustibles and explosives that cause an accident,in this ball valve,static-conduction spring is set between the stem and the ball,the stem and the body.Thus static electricity is conducted to ground and system safety is secured.

4.Free leakage of body Sealed construction
The connective position of valve body and bonnet is double sealed by gasket and O-ring,on this base,such factors as fire,high temperature,shock and uneven opening or closing of the torque all can't induce external leakage.

5.Low torque in operation
The self-lubricated bearings are installed at the friction of stem,resulting in wear resistance,fiexibilityof operation and low torque.

6. Double block&bleed(DBB)
When ball is full open or close position,the transmitter substance in center cavity of body can be released by drainage and emptying devices.In addition,the over loaded pressure in the center cavity of valve can be released to low pressure end by self relief seat.

7.Emergency sealing
Compound injection holes are designed and compound injection valves are installed at locations of stem/cap and body support of side valve.When sealing of stem or seat is damaged to induce leakage,the compound can be used to do the second time sealing.A concealed check valve is installed in side of each compound injection valve to prevent compound from out flowing due to the action of transmitter substance.The top of the compound injection valve is the connector for fast connection with compound injection gun.

8.Extension stem
For the underground installed valve,the stem can be lengthened and for the convenience of operation the corresponding compound injection nozzle and drainage valve can be extended to the top of valve.

9.Automatic body cavity relief
When the body pressure going up un-normally as the unstable factor,the trunnion ball valve downstream seat will be pushed by unnormalpressure,and the release the un-normally pressure automatically,it doesn't damage to the sealing of upstream seat.

10.Various driving types
The top pad of valve designed according to ISO 5211,which is convenient for connection and exchange of various drivers.The common driving types are manual,electrical,pneumatic and pneumatic/hydraulic


Standard material specifications
Part nameMaterial
BodyA105A182 F304A182 F316A182 F304LA182 F316L
Body capA105A182 F304A182 F316A182 F304LA182 F316L
BallA105+NipA182 F304A182 F316A182 F304LA182 F316L
StemA105+NipA182 F304A182 F316A182 F304LA182 F316L
SeatA105+NipA182 F304A182 F316A182 F304LA182 F316L
Seat ringPTFE/RPTFE/NYLON
Fixed turnnionA105+NipA182 F304A182 F316A182 F304LA182 F316L
O-ringVITONVITONVITONVITONVITON
Contact spring17-7PH/In conelIn conelIn conelIn conelIn conel
Cover boltA193 B7A193 B8A193 B8MA193 B8MA193 B8M
Cover nutA194 2HA194 8A194 8MA194 8MA194 8M
BearingSF-1SF-1SF-1SF-1SF-1

CLASS 150lb~1500lb FORGED STEEL trunnion mounted Ball Valve

Dimensions & weights
Class 150lb
Sizeinch23468101214161820
L(RTJ)mm178203229394457533610686762864914
Hmm153195213500568605662725770970935
H1mm139178191220289318382430470489528
L0mm400600850400*400*400*400*800*800*600*500*
Weightmm305090203289450588676864764911

Dimensions & weights
Class 300lb
Sizeinch23468101214161820
Lmm216283305403502568648762838914911
L(RTJ)mm2322993214195185846647788549301010
Hmm153195213500569605662725770970935
H1mm139178191220289318382430470489528
L0mm60012501300400*400*400*400*800*800*600*500
Weightmm305090203289450588676864764911

Dimensions & weights
Class 600lb
Sizeinch23468101214161820
Lmm29235643255966078783888999110921194
L(RTJ)mm29535943556266379084189299410951200
Hmm1531952135005696457027508159701065
H1mm119145180220289318382430470489561
L0mm60012501300400*400*457*457*800*800*600*600*
Weightmm326412226752177311181700197012181646

Dimensions & weights
Class 900lb
Sizeinch23468101214161820
Lmm3683814576107378389651029113012101321
L(RTJ)mm3723844606137808419681038114012321334
Hmm16220523959170070082095099010301200
H1mm119145180213254327368442483523615
L0mm60012501300450*600*750*750*600*600*600*600*
Weightmm487813827554784712241676208326943515

Dimensions & weights
Class 1500lb
Sizeinch238101214161820

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