Double Block & Bleed Flanged Ball Valve A105/Lf2/F304/F316
Product Details
| Customization: | Available |
|---|---|
| Material: | Carbon Steel |
| Connection Form: | Flange |
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Basic Info.
- Model NO.
- GADBBQ41F
- Driving Mode
- Manual
- Nominal Pressure
- ANSI CLASS 150-900
- Channel
- Straight Through Type
- Structure
- Double Block and Bleed
- Type
- Floating Ball Valve
- Function
- Blow-Down Valve, Relief Valve
- Temperature
- Normal Temperature
- Application
- Industrial Usage
- Feature
- Double Ball with a Needle Valve
- Transport Package
- Plywood Case
- Specification
- CE, SGS, TUV
- Trademark
- GOOLE, OEM
- Origin
- China(Mainland)
- HS Code
- 8481804090
- Production Capacity
- 10, 000PCS/Year
Product Description
Double Block & Bleed Flanged Ball Valve A105/Lf2/F304/F316
name of commodity: DBB Double Block & Bleed Floating Ball Valve (DBBQ41F) Floating Ball Valve
Nominal diameter:1/2"-12"
Nominal pressure:150Lb-600Lb , 10K-40K
Applicable temperature: -196~250ºC, 250~425ºC
Available material: CS, SS, FS,304,316,316 L, CF8, CF8M , chrome molybdenum steel , Low temperature steel.
Driving type :Electric, Pneumatic, Worm wheel, manual, hydraulic .(Note: Pictures of products for worm gear drive)
Applicable medium: water, gas, oil product, Food, medicines, chemicals natural gas and corrosive medium as acid, alkali, etc.
Physical dimension: ANSI B16.10 GB/T12221
Flanges dimension: ANSIB16.10 GB/T15188.1
Test and inspection: ANSI598 GB/T909
Double Block & Bleed Flanged Ball Valve structure characteristics
1. The double block and bleed valve have evolved to replace and add the process of bolting together individual valves to make the valves in one body .it saved a lot of space and material.
2. Special designs including injecting quills ,sample probes ,double block and single block, in-built check valves and seat wipers.
3. Dual isolation is necessary requirement when maintenance is taking place down stream of the first isolation valve. Cavity venting is provided by either a ball or globe OS&Y vent valve so that trapped pressure between the two isolation valves is safely vented.
4. These valves have also evolved to encompass the function of chemical injection (using a suitable quill) and sample points .In-built check valves are often integrated in these valves.
5. Fire Safe according to BS6755/ANSI 6FA/ANSI 607, since each sealing point is provided by a secondary fire-safe seal in graphite. Valve soft seats also are provided with secondary metal-to metal seal in case of fire.
6. Valve design can be either Trunnion or floating type ,anti blow -out stem and typically SPE seat design .Drain port is normally provide with a floating ball valve ,to be fitted with final user drain line .valve seats can be soft or metal to metal hard-faced.
Double Block & Bleed Flanged Ball Valve Standards compliance:
Design and Manufacture: ANSI 608, ANSI 6D
Face to face(end to end): ANSI B16.10, ANSI 6D
Flanged connection: ANSI B16.5
Fire-safe: ANSI 607,ANSI 6FA
Butt welded end: ANSI B16.25
Test and inspection: ANSI 598,ANSI 6D
2. Simple structure, small volume, light weight.
3. Compact and reliable, the widespread use of plastic ball valve sealing surface of materials, good sealing, also has been widely used in the vacuum system.
4. Easy to operate, open and close quickly
5. Easy maintenance, simple structure of ball valve, sealing ring, which generally remove replacement is more convenient.
6. In the fully open or fully closed, the ball and seat sealing surface and the dielectric isolation, medium through, can not cause the valve sealing surface erosion.
7. Applicable scope is wide, size from small to several millimeters, big to a few meters, from high vacuum to high pressure can be applied.
Thank you for visiting our website, if you have any doubts you can feel free to contact us ,we will try our best to provide you with quality service.
name of commodity: DBB Double Block & Bleed Floating Ball Valve (DBBQ41F) Floating Ball Valve
Nominal diameter:1/2"-12"
Nominal pressure:150Lb-600Lb , 10K-40K
Applicable temperature: -196~250ºC, 250~425ºC
Available material: CS, SS, FS,304,316,316 L, CF8, CF8M , chrome molybdenum steel , Low temperature steel.
Driving type :Electric, Pneumatic, Worm wheel, manual, hydraulic .(Note: Pictures of products for worm gear drive)
Applicable medium: water, gas, oil product, Food, medicines, chemicals natural gas and corrosive medium as acid, alkali, etc.
Double Block & Bleed Flanged Ball Valve Specification
Design standard: ANSI B16.34 GB/T12237Physical dimension: ANSI B16.10 GB/T12221
Flanges dimension: ANSIB16.10 GB/T15188.1
Test and inspection: ANSI598 GB/T909
Double Block & Bleed Flanged Ball Valve structure characteristics
1. The double block and bleed valve have evolved to replace and add the process of bolting together individual valves to make the valves in one body .it saved a lot of space and material.
2. Special designs including injecting quills ,sample probes ,double block and single block, in-built check valves and seat wipers.
3. Dual isolation is necessary requirement when maintenance is taking place down stream of the first isolation valve. Cavity venting is provided by either a ball or globe OS&Y vent valve so that trapped pressure between the two isolation valves is safely vented.
4. These valves have also evolved to encompass the function of chemical injection (using a suitable quill) and sample points .In-built check valves are often integrated in these valves.
5. Fire Safe according to BS6755/ANSI 6FA/ANSI 607, since each sealing point is provided by a secondary fire-safe seal in graphite. Valve soft seats also are provided with secondary metal-to metal seal in case of fire.
6. Valve design can be either Trunnion or floating type ,anti blow -out stem and typically SPE seat design .Drain port is normally provide with a floating ball valve ,to be fitted with final user drain line .valve seats can be soft or metal to metal hard-faced.
Double Block & Bleed Flanged Ball Valve Standards compliance:
Design and Manufacture: ANSI 608, ANSI 6D
Face to face(end to end): ANSI B16.10, ANSI 6D
Flanged connection: ANSI B16.5
Fire-safe: ANSI 607,ANSI 6FA
Butt welded end: ANSI B16.25
Test and inspection: ANSI 598,ANSI 6D
Double Block & Bleed Flanged Ball Valve Advantage:
1. The fluid resistance is small, its resistance coefficient with section of equal length.2. Simple structure, small volume, light weight.
3. Compact and reliable, the widespread use of plastic ball valve sealing surface of materials, good sealing, also has been widely used in the vacuum system.
4. Easy to operate, open and close quickly
5. Easy maintenance, simple structure of ball valve, sealing ring, which generally remove replacement is more convenient.
6. In the fully open or fully closed, the ball and seat sealing surface and the dielectric isolation, medium through, can not cause the valve sealing surface erosion.
7. Applicable scope is wide, size from small to several millimeters, big to a few meters, from high vacuum to high pressure can be applied.
Double Block & Bleed Flanged Ball Valve dimensions
Dimensions |
|||||||||||
Class 150 |
|||||||||||
Size |
inch |
1/2 |
3/4 |
1 |
1-1/2 |
2 |
2-1/2 |
3 |
4 |
6 |
8 |
L-RF |
mm |
108 |
117 |
127 |
165 |
178 |
191 |
203 |
229 |
394 |
457 |
L1-BW |
mm |
140 |
152 |
165 |
190 |
216 |
241 |
283 |
305 |
457 |
521 |
L2-RTJ |
mm |
- |
- |
140 |
178 |
191 |
203 |
216 |
241 |
406 |
470 |
B |
mm |
13 |
19 |
25 |
38 |
51 |
64 |
76 |
102 |
152 |
203 |
H |
mm |
65 |
70 |
80 |
95 |
110 |
135 |
145 |
170 |
235 |
275 |
K |
mm |
150 |
155 |
160 |
180 |
200 |
225 |
325 |
350 |
500 |
600 |
WT. |
Kg |
3 |
4 |
5 |
8 |
12 |
21 |
26 |
43 |
80 |
155 |
Dimensions |
|||||||||||
Class 300 |
|||||||||||
Size |
inch |
1/2 |
3/4 |
1 |
1-1/2 |
2 |
2-1/2 |
3 |
4 |
6 |
8 |
L-RF |
mm |
140 |
152 |
165 |
190 |
216 |
241 |
283 |
305 |
403 |
502 |
L1-BW |
mm |
140 |
152 |
165 |
191 |
216 |
241 |
283 |
305 |
457 |
521 |
L2-RTJ |
mm |
151 |
165 |
178 |
203 |
232 |
257 |
298 |
321 |
419 |
518 |
B |
mm |
13 |
19 |
25 |
38 |
51 |
64 |
76 |
102 |
152 |
203 |
H |
mm |
70 |
85 |
90 |
105 |
120 |
145 |
160 |
195 |
250 |
290 |
K |
mm |
155 |
160 |
180 |
200 |
225 |
325 |
350 |
500 |
600 |
700 |
WT. |
Kg |
3 |
5 |
7 |
13 |
15 |
28 |
32 |
55 |
105 |
17 |
Double Block & Bleed Flanged Ball Valve materials
Materials |
||
NO. |
Part name |
Material |
13 |
Handle |
Carbon steel |
12 |
Lock nut |
Carbon steel |
11 |
Gland nut |
Carbon steel |
10 |
Thrust washer |
PTEF/NYLON |
09 |
Gland bush |
Stainless steel |
08 |
Stem |
Stainless steel |
NO. |
Part name |
WCB |
LCB |
07 |
Stud and nut |
A193 Gr B7/A194 Gr 2H |
A320 Gr L7/A194 Gr 4 |
06 |
Packing |
Graphite/ptfe |
Graphite/ptfe |
05 |
Ball seat |
PTFE/RPTFE/NYLON |
SPTFE/RPTFE/NYLON |
04 |
Gasket |
Graphite/spiral wound |
Graphite /spiral wound |
03 |
Ball |
A182 F6a |
A182 F304 |
02 |
R-body |
A216 Gr WCB |
A352 Gr LCB |
01 |
L-body |
A216 Gr WCB |
A352 Gr LCB |
NO. |
Part name |
CF8 |
CF8M |
07 |
Stud and nut |
A193 Gr B16/A194 Gr 4/7 |
A193 Gr B7/A194 Gr 2H |
06 |
Packing |
Graphite/ptfe |
Graphite/ptfe |
05 |
Ball seat |
PTFE/RPTFE/NYLON |
PTFE/RPTFE/NYLON |
04 |
Gasket |
Graphite /spiral wound |
Graphite /spiral wound |
03 |
Ball |
A182 F304 |
A182 F316 |
02 |
R-body |
A351 Gr CF8 |
A351 Gr CF8M |
01 |
L-body |
A351 Gr CF8 |
A351 Gr CF8M |
Thank you for visiting our website, if you have any doubts you can feel free to contact us ,we will try our best to provide you with quality service.
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