Flanged Diaphragm Valve

Flanged Diaphragm Valve

Features:

● With the birth of the company, we produced the first plastic diaphragm valve in 1979 and obtained the certification of the Ministry of Chemical Industry in 1983.

● Diaphragm valve uses a high quality sealing material, exhibiting lower compressive strain, for its diaphragm and cushion, resulting in optimum sealing performance.

● Diaphragm valve is designed so that pressure is distributed evenly. This design allows the hand wheel torque be reduced and maintain shutt off at low torque.

● Strict control of the processing and assembly process. The flow adjustment is more stable and accurate.

● Diaphragm valve structure has no dead angle, no pollution to the medium, strong corrosion resistance, no packing wear, and excellent internal sealing performance.

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Flanged Diaphragm Valve Details

Parts&Material

No.

Parts

Materials

1

Gauge cover

PC

2

Stud nut

Steel, stainless steel

3

Hand wheel

ABS,FRPP

4

Bonnet

HR-PP,FRPP,PPH,UPVC,CPVC,PVDF

5

Sleeve

Cast iron, copper alloy

6

Board

Plastc-coated steel, stainless steel

7

Stud Bolt & Nut

Steel, stainless steel

8

Stem

Steel, stainless steel, copper alloy

9

Body

FRPP,PPH,UPVC,CPVC,PVDF

10

Compressor

PVDF,CPVC,cast iron

11

Cushion

EPDM

12

Diaphragm

EPDM,FPM,FEP,PFA,PTFE

13

Grease Nipple

Copper alloy, stainless steel
DN80-300 used only



CV reference value

100% Full open

DN

CV value

15

5.4

20

6.3

25

7.2

32

8.1

40

23.4

50

43.2

65

76.5

80

103.5

100

166.5

125

270

150

360

200

630

250

900

300

900



(Mpa) Temperature%Pressure chart

DN

FRPP

PPH

UPVC

CPVC

PVDF

20℃

60℃

90℃

20℃

60℃

85℃

20℃

50℃

20℃

60℃

85℃

20℃

60℃

90℃

120℃

15

 1.0

 0.8

0.3

1.0

0.7

 0.3

1.0

0.5

1.0

 0.8

0.3

 1.0

1.0

 0.6

0.4

20

 1.0

 0.8

0.3

1.0

0.7

 0.3

1.0

0.5

1.0

 0.8

0.3

 1.0

1.0

 0.6

0.4

25

 1.0

 0.8

0.3

1.0

0.7

 0.3

1.0

0.5

1.0

 0.8

0.3

 1.0

1.0

 0.6

0.4

32

 1.0

 0.6

0.3

1.0

0.5

 0.3

1.0

0.5

1.0

 0.6

0.3

 1.0

1.0

 0.6

0.4

40

 1.0

 0.6

0.3

1.0

0.5

 0.3

1.0

0.5

1.0

 0.6

0.3

 1.0

1.0

 0.6

0.4

50

 1.0

 0.6

0.3

1.0

0.5

 0.3

1.0

0.5

1.0

 0.6

0.3

 1.0

1.0

 0.6

0.4

65

 1.0

 0.5

0.2

1.0

0.4

 0.2

1.0

0.4

1.0

 0.5

0.2

 1.0

1.0

 0.5

0.3

80

 1.0

 0.5

0.2

1.0

0.4

 0.2

1.0

0.4

1.0

 0.5

0.2

 1.0

1.0

 0.5

0.3

100

 1.0

 0.5

0.2

1.0

0.4

 0.2

1.0

0.4

1.0

 0.5

0.2

 1.0

0.8

 0.5

0.3

125

 0.5

 0.3

0.15

0.5

0.2

0.15

0.6

0.3

0.6

 0.3

0.2

 0.6

0.6

 0.4

0.2

150

 0.5

 0.3

0.15

0.5

0.2

0.15

0.6

0.3

0.6

 0.3

0.2

 0.6

0.6

 0.4

0.2

200

 0.3

 0.2

0.1

0.3

0.15

 0.1

0.3

0.1

0.3

 0.2

0.1

 0.4

0.4

 0.2

0.1

250

 0.3

 0.2

0.1

0.3

0.15

 0.1

0.3

0.1

0.3

 0.2

0.1

 0.3

0.3

 0.2

0.1

300

 0.3

 0.2

0.1

0.3

0.15

 0.1

0.3

0.1

0.3

 0.2

0.1

 0.3

0.3

 0.2

0.1

The experimental data is EPDM+PTFE double-layer membrane data for reference



Dimensions Table(mm)

DN

D1(mm)

D(mm)

L(mm )

h(mm )

n

φ (mm )

HG/DIN

JIS

ANSI

HG/DIN

JIS

ANSI

HG/DIN

JIS

ANSI

 

HG/DIN

JIS

ANSI

HG/DIN

JIS

ANSI

15

95

95

95

65

 70

60

125

110

110

14

4

4

4

14

15

16

20

105

100

100

75

 75

70

135

120

120

16

4

4

4

14

15

16

25

115

125

125

85

 90

79

145/160

130

130

16

4

4

4

14

15

16

32

135

135

135

100

100

89

160/180

160

160

16

4

4

4

18

19

16

40

145

145

145

110

105

98

180

180

180

16

4

4

4

18

19

16

50

160

160

160

125

120

121

210/230

210

210

18

4

4

4

18

19

19

65

180

180

180

145

140

140

250

250

250

22

4

4

4

18

19

19

80

195

195

195

160

150

152

300

280

280

25

8

8

4*

18

19

19

100

215

220

220

180

175

190

350

340

340

25

8

8

8

18

19

19

125

255

255

255

210

210

216

405

405

405

30

8

8

8

18

19

22

150

280

280

280

240

240

241

460

460/480

460/480

30

8

8

8

22

23

22

200

340

340

340

295

290

298

575

575

575

38

8

12*

8

22

23

22

250

395

395

395

350

355

362

685

685

685

38

12

12

12

22

25

26

300

480

480

480

400

400

432

790

790

790

40

12

16*

12

22

25

26

CONTACT WITH US
12

years of
experience

About Us

Ningbo Baodi Plastic Valve Co., Ltd. is professional China Flanged Diaphragm Valve Manufacturers and OEM/ ODM Flanged Diaphragm Valve Factory .Founded in 2006, the enterprise has established ISO9001 quality system to support the quality guideline: supported by Technology, Meticulously Researching, Professionally Manufacturing and Permanently Creating New Records. The first class production equipments and advanced manufacturing skills are introduced at the same time, involving KRAUSS-MAFFEL CPVC pipe production line and Haitian CPVC Plastic Molding Machine of 2800 tons. In order to ensure the quality of Flanged Diaphragm Valve , the raw materials like CPVC and PVDF are wholly imported from Noveon (USA) and Atofina (France).
25000

M2
Built-up area

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