Triple eccentric flange butterfly valve with PTFE
Profile

Double eccentric high performance butterfly valve, the valve body and the valve seat are connected components, the valve seat sealing surface layer surfacing welding heat resistant, corrosion resistant alloy materials.
Multi-layer soft fold type sealing ring is fixed on the valve plate, the butterfly valve and the traditional butterfly valve compared with high temperature resistant, convenient operation, opening and closing without friction, closed as the actuator torque increases to compensate for sealing, improve the butterfly valve sealing performance and prolong service life, has been in the petroleum, chemical industry, metallurgy, water and electricity is widely used in many fields such as extremely

1, The metal seal butterfly valve adopts 听two eccentric hard seal structure, the valve seat and the butterfly plate almost no wear, with more close more tight sealing function.

2, the sealing ring is made of stainless steel, with the advantages of metal hard seal and elastic seal, both in the case of low temperature and high temperature, have excellent sealing performance, corrosion resistance, long service life and other characteristics.

  1. The sealing surface of the butterfly plate is made of surfacing hard alloy, which is wear-resistant and has long service life.
  2. The large size butterfly plate adopts the structure of quilting, with high strength, large flow area and small flow resistance.

5, according to user needs, hard seal butterfly valve can be designed to have a two-way sealing function, installation is not limited by the flow of media, is not affected by the space position, can be installed in any direction.

nominal diameter  

DN(mm)

50~1200

nominal pressure

PN(MPa)

0.6~4.0

 nominal pressure (MPa)

strength test

0.9~6.0

 

seal test

0.66~4.4

parts

body

WCB, stainless steel , Alloy steel

 

disc

WCB, stainless steel , Alloy steel

 

stem

2Cr13 SS , 2Cr13  stainless steel 

 

padding

PTFE、flexible graphite

 

Sealing

stainless steel, PTFE, hard alloy

 Temperature

-40~570℃

applicable medium

 water , oil, gas, acid,alkaline

connection

wafer, flange

nominal diameter(mm)

connection size

L

H1

H

ΦD

n-Φd

PN10

PN16

PN25

PN10

PN16

PN25

DN50

43

72

200

125

125

125

4–18

4–18

4–18

DN65

46

110

225

145

145

145

4–18

4–18

4–18

DN80

49

115

240

160

160

160

4–18

4–18

4–18

DN100

56

130

255

180

180

190

4–18

4–18

4–22

DN125

64

150

305

210

210

220

4–18

4–18

4–26

DN150

70

165

325

240

240

250

4–22

4–22

4–26

DN200

71

210

380

295

295

310

4–22

4–22

4–26

DN250

76

245

410

350

355

370

4–22

4–26

4–30

DN300

83

280

460

400

410

430

4–22

4–26

4–30

DN350

92

315

252

460

470

490

4–22

4–26

4–33

DN400

102

345

545

515

525

550

4–26

4–30

4–36

DN450

114

380

630

565

585

600

4–27

4–M27

4–M33

DN500

127

415

650

620

650

660

4–28

4–M30

4–M33

DN600

154

460

680

725

775

770

4–30

4–M33

4–M36

DN700

165

488

780

840

840

875

4–M27

4–M33

4–M39

DN800

190

572

860

950

950

990

4–M30

4–M36

4–M45

DN900

203

628

900

1050

1050

1090

4–M30

4–M36

4–M45

DN100

216

698

1000

1160

1170

1210

4–M33

4–M39

4–M52

DN1200

254

810

1100

1380

1390

1420

4–M36

4–M45

4–M52

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