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Diversion plate gate valve
Model: Z43H
Nominal diameter: DN6-2000mm
Nominal pressure: 1.0-32Mpa
Connection: flange, welding, screwing and other
Body material: WCB, LCB, A105, CF8 , CF3, CF8M, CF3M, C5, WC6
Transmission: manual, worm gear, electric, pneumatic, hydraulic, electro-hydraulic, etc.
Use of media: water, steam, oil, acid etc.

Overview
 Flat gate valve for Class150 ~ 900 / PN1.0 ~ 16.0MPa, operating temperature -29 ~ 121 ℃ of oil, natural gas, water, oil and other pipeline, used to cut off or connect the medium in the pipeline.


 Applications

 Flat gate valve for natural gas, petroleum, chemical, environmental protection, urban pipelines, gas pipelines and other pipeline, venting system and steam storage devices, used as hoist equipment. 
 Z43H-type single gate with diversion gate valve for natural gas extraction and purification of long-distance pipeline.


 Structural features

 1, the seat with O-ring seal and preload force applied to the floating valve seat structure, so that the two-way seal plate gate valve import and export; and the structure of the opening and closing torque of only ordinary valve 1/2, to achieve ease Open and close the valve 
 2, at full open, the channel is smooth to a straight line, the flow resistance coefficient is minimal, no pressure loss, can be used to clean the pipeline hair ball 
 3, with self-sealing packing structure, without frequent regulation, on, off Extremely lightweight and reliable sealing, the packing box is equipped with an auxiliary seal grease injection structure, the sealing performance is absolutely reliable, truly zero leakage; Solve the general valve packing the most easy to leak the shortcomings 
 4, Out of cavity high pressure, to ensure the safety of use 
 5, fully enclosed structure, good protective performance, can adapt to all-weather requirements

 1. Sealing structure of the valve seat should be elastic pre-tightening force, sealing structure at the same time downstream sealing seat. Seat and seal are always face-to-face seals. 
 2. Seat has a self-cleaning function, and the valve is opened or closed during the direct flow of air erosion. Seat should be made of lubricated, non-abrasive material. 
 3. Valve actuator failure does not affect the rest of the valve, maintenance and replacement work can be carried out without removing the valve. 
 (1) Yoke Sleeve - The aluminum bronze yoke sleeve is equipped with a needle thrust bearing to minimize operating torque. 
 (2) Stem - thread length up to bracket; pin and spot welding; stable. 
 (3) Pressure Sealed - Simple to assemble, with sectional buckle and silver-plated mild steel washers to help disassemble and achieve the best bonnet seal. 
 (4) Seat Ring - Welded seat ring is perpendicular to the flow path for easy maintenance. 
 (5) Actuators - These valves can be equipped with electric, hydraulic or pneumatic actuators. DN300 following the standard configuration handwheel, DN350 above configuration helical gear operating mechanism. 
 (6) Yoke - The fully assembled yoke passes the seismic test for easy maintenance and installation of the actuator. 
 (7) Gland - Two-piece, self-adjusting gland to avoid being ejected. 
 (8) overall rear seat - hard surface, the longest service life. 
 (9) Flap - The spring-loaded flap regulates itself to reduce actuator torque demand. 
 (10) The overall stop - the overall casting bracket stopper device, positioning the assembly of the bracket valve, making the valve seat more stable and reliable.


 Standard specification

 Design and manufacture of standards: JB / T 5298 
 Structure Length Standard: JB / T 5298 
 Flange Standard: GB / T 9113 
 Pressure Temperature Level: GB / T 12224-2005 
 Test Tests: GB / T 13927-2008, JB / T 5298


 Parts materials and conditions

Part Name

Parts and materials

JB / T7298

API 6D

Valve / bonnet

WCB

WCB

A352-LCB

A351-CF8M

gate

2Cr13 + ENP

20CrMoV + STL

ANSI 410 + ENP

ANSI 316 + ENP

Valve stem

2Cr13

2Cr13

A182-F6a

A182-F316S

Seat

25 + PTFE

20CrMoV + STL

A105 + PTFE

A182-F316 + PTFE

filler

NBR / FPM

Flexible graphite

Teflon

Gasket

18-8 / Flexible Graphite

bolt

35

35CrMo

A193-B7M

A193-B8

proper temperature

-29 ~ 250 ℃

-29 ~ 550 ℃

-46 ~ 250 ℃

-40 ~ 200 ℃

Suitable media

Water, oil

Steam, oil

Propane, ethylene

Nitric acids


The main size and weight

Nominal diameter

Structure length L

H

H1

DN

NPS

Manual

Bevel gear drive

pneumatic

electric

25

11/4

127

\

\

\

\

\

32

11/4

165

385

\

\

\

63

40

11/2

165

385

\

\

\

63

50

2

178

415

\

\

\

74

65

21/2

190

462

\

\

\

83

80

3

203

563

\

\

\

95

100

4

229

648

\

\

\

109

125

5

254

715

\

\

\

125

150

6

267

836

\

636

979

144

200

8

292

1034

\

796

1096

176

250

10

330

1230

\

960

1297

204

300

12

356

1405

1460

1118

1520

240

350

14

381

1607

1642

1305

1768

263

400

16

406

1775

1865

1425

1935

293

500

20

457

2176

2251

1724

2300

350

600

24

508

2564

2642

1995

2770

403

700

28

610

2950

3128

2293

3570

450

800

32

660

3335

3515

2675

3985

507

900

36

711

3720

3900

3060

4370

555

1000

40

811

4105

4290

3445

4755

610


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