Electric ball type fully welded ball valve

Product overview

General model: QN961F-16C

Product caliber: NPS6-40 (DN150-1000mm)

Product pressure: 150LB-2500LB (PN1.6-PN42MPa)

Medium temperature: -29℃-+200℃

Design standard: API6D, ASME B16.34

Connection method: welding end / welding end ASME B16.25

Inspection and test: API6D, AIP598, ASME B16.34

Fire test: API 6FA/API 607

Drive mode: worm gear, electric, pneumatic, etc.

Valve body material: 20#, A105, etc., the seal adopts PPL or hard seal

Operation mode: worm gear, electric, gas-liquid, etc.

Scope of application: buried or thermal insulation conditions such as natural gas pipelines, heating pipe networks, etc.

Use medium: water, gas, oil, chemical industry, salt water, gas, natural gas, etc.

Application areas: used in the control of petroleum, chemical, and natural gas main pipelines


Product Detail

Product description

Electric ball-type fully welded ball valves are mainly used in engineering pipelines to switch on and adjust the media. It can be directly buried in the ground or installed directly. The overall structure adopts a fully welded industrial structure, which greatly improves the internal and external sealing of the valve and reduces the weight of the valve. It not only reduces the cost of engineering construction, but also saves time. It is widely used in urban gas underground pipelines, natural gas transmission pipelines, pressure regulating stations and other fields.


Features

1. The electric spherical fully welded ball valve is a two-piece side-mounted forged and welded structure. The spherical body fully welded structure has a low body weight. Its ideal spherical body can cope with higher pressure and bending moments, and can follow higher internal and External pressure. Different material combinations can be selected to ensure reliable operation of the valve in corrosive situations, such as acid gas.

2. Seal structure features: forged steel fixed ball floating seat, soft/hard two-stage seal, primary seal is metal seal, secondary seal is non-metallic seal; secondary seal adopts VITON-AED, DEVLON, PEEK and all metal Sealing etc.

3. Features of two-vertical two-ring group welding: a unique welding process is used to ensure the quality of the multi-pass weld and the deformation generated during the welding process. Special assembly technology and tooling equipment to ensure the accuracy of assembly positioning.

4. Features of single-pass welding seam group welding type: the valve body is assembled by two head-shaped valve bodies in the middle, with less welding seams and small deformation, and the welding seams are far away from the valve seat, and the welding heat is not easy to damage the valve seat.

5. Characteristics of the welding method: a unique welding process is used to ensure the quality of the multiple welds and the deformation during the welding process. Special assembly technology and tooling equipment to ensure the accuracy of assembly positioning.



球型全焊接球阀(图1)

Main external connection size

DN(mm)

Nominal diameter

H

d

t

L

H1

H2

I

ISO

W T(kg)

A/B

125

100

193

139.7/133

5

325

42

221

40

F07

22

150

125

219

168.3/159

6

350

83

245

50

F10

32

200

150

273

219.1/219

7

400

84

289

60

F12

44

250

200

351

273/273

8

559

90

306

84

F14

102

300

250

425

323.9/325

12

635

87

336

105

F16

150

350

300

508

355.6/377

14

762

102

395

110

F25

267

400

350

610

406.4/426

14

838

95

445

120

F25

460

450

400

610

457/480

16

914

95

460

120

F25

550

500

400

680

508/530

18

991

95

522

150

F30

720

600

500

813

610/630

22

1143

105

610

170

F30

1600

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