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Yongjia Goole Valve Co., Ltd.

Ball Valve, Dbb Ball Valve, Dbb Valve manufacturer / supplier in China, offering Dbb Ball Valve (DOUBLE BLOCK&BLEED VALVE) (GADBBQ47N), Electric Actuated Sleeve Type Flow Control Valve, ZSHV Wafer Type Pneumatic V-Port Ball Valve/V-Port Control Valve and so on.

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Supplier Homepage Product Ball Valve DBB Ball Valve Dbb Ball Valve (DOUBLE BLOCK&BLEED VALVE) (GADBBQ47N)

Dbb Ball Valve (DOUBLE BLOCK&BLEED VALVE) (GADBBQ47N)

FOB Price: US $1 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $1/ Piece
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Port: Ningbo, China
Production Capacity: 10, 000PCS/Year
Payment Terms: L/C, T/T, Western Union, Paypal

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Basic Info
  • Model NO.: GADBBQ47N
  • Connection Form: Flange
  • Nominal Pressure: ANSI CLASS 150-900
  • Structure: Fixed Ball Valve
  • Function: Blow-Down Valve
  • Application: Industrial Usage
  • Main Structure: 2 Floating Ball Valves and 1 Needle Valve
  • Transport Package: Plywood Case
  • Origin: Wenzhou, Zhejiang, China
  • Material: CS/Ss
  • Driving Mode: Manual
  • Channel: Straight Through Type
  • Type: Fixed Ball Valve
  • Temperature: Low Temperature
  • Main Feature: Double Block and Bleed
  • Trademark: GOOLE, OEM
  • Specification: CE, SGS, TUV
  • HS Code: 8481804090
Product Description
Flanged Trunnion DBB Ball Valve
Double Block and Bleed Ball Valve main parameter
Nominal diameter : 4"-24" , 100mm-600mm
Nominal pressure : 1500LB-2500LB , 1.6Mpa-32Mpa
Connection type : Flange
Material :CS,SS
Driving means : worm gear , electric , pneumatic .
 
Flanged Trunnion DBB Ball Valve
Double Block and Bleed Ball Valve Technical standard
Design and manufacture : API 6D
Structural Length : ASME B16.10
Flange connection : ASME B16.5
Test and Check : AIP 598
 
Flanged Trunnion DBB Ball Valve
Double Block and Bleed Ball Valve features
1. Double Block and Bleed Ball Valves, Which is the ideal equipment in cutting off medium, are widely used in hydraulic system pipeline of power, petrochemical , metallurgy , marine , petroleum , natural gas , coal gas , pharmaceutical and other industries.
2. Double Block and Bleed Ball Valve is also called DBB ball valve , DBB ball valve is a new kind of valve, it has completely double balls to cut off medium, discharge pressure and loot , Designed for reducing weight and saving space, Simplified installation procedure ,Reduce pressure in a pipeline system, Convenient instrument cleaning and maintenance . it is not only sealing reliable, and also saving the cost of manufacturing.
 
Flanged Trunnion DBB Ball Valve
DBB Ball Valve  

Specifications
1.Anti-fire safe design.Anti-static device 
2.Free leakage of body Sealed construction 
3.Double block&bleed. 
4.Extension stem.
 
1.Bow-out proof stem

For the purpose of preventing the stem from flying off  resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.
 
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,fiexibility of 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 un-normally pressure,and the release theunnormal 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.

Product parameter
 
Main material WCB, WCC, LCB, CF8, CF8M, CF3, CF3M, CN7M, CF8C, 4A, A105, LF2, F304, F316, F304L, F316L, F321, F51, ect.
Pressure rating Class 150 to Class 2500 (PN2.5 to PN 420)
Standards applied API. ASME, ANSI, NACE, CE/ EN, DIN, JIS, BS, ISO, TS, GB, etc.
Operative temperature -196 °C to 980 °C ( -320.8 °F to 1796 °F)
Optional operation Manual, Gear, Electric, Pneumatic, Hydraulic.


TRUNNION BALL VALVE Class 150Lb

DN
22 1/2345681012141618202428323640
d1516476102127152203254305337387438489591686781876978
LRF17819120322935639445753361068676286491410671245137215241753
BW21624128330538145752155963576283891499111431346152417271880
H10211412715218421927336039543047055058070080095011001200
 H110712515217830033039849558062567069884010501100115012471374
E------1161161711712572572571508383123123
F------350350420420400400400410650650735735
W230400400650105015060060080080080080080080080080080000
Wt(Kg)1216223558742053224605768641280160035404500594075409320
 H2-----554600652760770830-94010201115---
L1-----235235235259400400-410410410---
 H3274379389479552666736926159112713931468153813701450---
L22704054055765767767767761060106013601360136028402840---

TRUNNION BALL VALVE  Class 300Lb

DN
221/2345681012141618202428323640
d1516476102127152203254305337387438489591686781876978
LRF21624128330538140350256864876283891499111431346152417271880
BW21624128330538145752155963576283891499111431346152417271880
H10211412715218421927336039543047055058070080095011001200
 H110712515217830033039849558062567069884010501100115012471374
E------1161161711712572572571508383123123
F------350350420420400400400410650650735735
W23040040065010501050600600800800800800800800800800800800
Wt(Kg)1524305587118255370533640103015242100420053007860868410300
 H2-----235235400400410410-420690690---
L1-----74350350420420400-400410650---
 H334037945247964666681410021059115012051250129513901470---
L2405405574574756756106010601060136013602840284033003300---

TRUNNION BALL VALVE  Class 400Lb

DN
22 1/2346810121416202428
d1516476102152203254305337387489591686
LRF292330356406495597673762826902105412321397
BW295333359410498600676765829905106012411410
H114124133159250294395445500530660800900
650735H110815519723530037444551255061581010101180
E11611611611611617117125725725715083123
F350350350350350420420400400400410650735
W600600600600600800800800800800800800800
Wt(Kg)233549911923556408801100154028005305700
 H2----55457493177186780597910851147
L1----235235400400410410420690690
 H3340--5766668951002105911601250132014701520
L2405--47975610601060136013602840284033003300

TRUNNION BALL VALVE Class 600Lb

DN
22 1/2346810121416202428
d1516476102152203254305337387489591686
LRF292330356432559660787838889991119413971549
BW295333359435562664791841892994120014071562
H114124133159250294395445500530660800900
 H110815519723530037444551255061581010101180
E11611611611611617117125725725715083123
F350350350350350420420400400400410650735
W600600600600600800800800800800800800800
Wt(Kg)35385510223239071096017001970325058006700
 H2----56965869476582591799810981185
L1----235259400410410420690690690
 H3340--4796668951002105911601250132014701520
L2405--57675610601060136013602840284033003300

TRUNNION BALL VALVE  Class 900Lb

DN
22 1/2346810121416182024
d1516476102152203254305327375426473572
LRF36841938145761073783896510291130121913211549
BW37142238446061374084196810381140123213341568
H217241259297360322420470510600700720810
 H1126158191216270394502572675762866894965
E116116116116171171257257150150180180220
F350350350350420420400400410410650650735
W600600600600800800800800800800800800800
Wt(Kg)506080125270        

 
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