Model NO.: GADQ41F
Type: Floating Ball Valve
Function: Blow-Down Valve
Temperature: Low Temperature
Application: Industrial Usage
Body Design: 2 PCS Side Entry Design
Design Pressure: Class 150lb-900lb
Bore Type: Reduced Bore/ Full Bore
Sealing Material: Rtfe/Nylon/Peek
Bonnet Design: Extended Bonnet/Stem
Trademark: GOOLE, OEM
Transport Package: Plywood Case
Specification: CE, SGS, GMP
Origin: Wenzhou, Zhejiang, China
HS Code: 8481804090


Flange connection Cryogenic ball valve is used for low temperature working condition,especially for some hazard media, such as liquidized natural gas. Applied to LNG plant, LNG receiving station, LNG gasification station and LNG carrier and ship.
 
 
Flange connection Cryogenic ball valve main parameter
Nominal diameter: DN15- DN250
Nominal pressure: 150LB- 300LB
Working temperature:-196 - +29ºC
Driving means: handle, electric actuator
Material: Stainless steel, Forged Steel , LCC/LCB, CF8/CFM8
 
Flange connection Cryogenic ball valve technology standard
Design standard: API 6D , ASME B16.34
Structural length: API 6D, ASME B16.10
Test & inspection :API 6D, API 598
Pressure and temperature:ASME B16.34
Flange ends :ASME B 16.5 , JB/T 79
The size of valve connecting flange can be designed according to customer's requirement.
 
Flange connection Cryogenic ball valve feature:
1. An extended bonnet to the valve can make the packing gland in the valve and the actuator further away from the cold process so the valve can open and close properly, protect it from freeze-damage caused by low temperature fluid.
2. Low operating torque for smoother operations.
3. Excellent seat and seal design minimizes leakage.
4. Fire-safe design.
5. Rigid body construction minimizes thermal shrinkage.
6. By adopting different materials, the cryogenic ball valve is applicable to different working temperature and medium. The minimum temperature for the ball valve is -196ºC. 
  
 Class 150~600 LB Floating 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.
 
Main Parts and Materials.
 
150LB/300LB Flanged Extended Stem Cryogenic Ball Valve (GADQ41F)
 
No Part Name Materials
-46°C~-101°C~-196°C
1 Left Body A352-LCB,LCC,LC3,A351-CF8,A351-CF8M
2 Seat PTFE,RPTFE,PEEK,PPL,POM,KARBATE
NYLON,MOLON,DEVLON
3 Ball A182-F304,F316
4 O-ring VITON
5 Gasket Flexible graphite+304,flexible graphite+316,PTFE
6 Bolt A194-4,8,8M
7 Nut A320-L7,A193-B8,B8M
8 Right body A352-LCB,LCC,LC3,A351-CF8,CF8M
9 Spring ss304,316
10 Small ball PTFE
11 Thrust washer A182-F6,F316,F316
12 Stem Flexible graphite,PTFE
13 Gasket A182 F6,F304,F316
14 Packing A352 LCB,A351 CF8
15 Gland 1025,stainless steel
16 Gland flange A216 WCB
17 Stop plate 1025
18 Lever 1035,stainless steel
19 Screw A352-LCB,LCC,LC3,A351-CF8,CF8M
20 Screw 1035,stainless steel
21 Extended bonnet A352-LCB,LCC,LC3,A351-CF8,CF8M,
22 Screw 1035,stainless steel
23 Bushing A182-F6,F304,F316

Main External Dimensions.
 
150LB/300LB Flanged Extended Stem Cryogenic Ball Valve (GADQ41F)
 
Size(in) H
-46°C -101°C -196°C
1/2 90 110 130
3/4 100 110 140
1 100 120 150
1 1/2 110 130 160
2 110 130 170
3 120 150 190
4 130 160 200
6 140 170 220
8 140 170 220
10 150 180 240
12 150 180 240
14 160 190 250
16 160 190 250
18 160 190 250
20 170 200 260
24 170 200 260


Class 150~300 floating 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

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

WT.

Kg

3

5

7

13

15

28

32

55

105

17
 
 

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