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Double Union Diaphragm Valve DN25

Double Union Diaphragm Valve DN25

High Performance Superior Quality PPH Plastic Double Union Diaphragm Valve for  water supply and chemical industry

Application:General, Water supply, chemical industry

Type of Connecting:union socket or threaded with pipes

Temperature of Media:Normal Temperature

Power:Manual

Media:Water,chemical liquid

Port Size:20-110mm

Size:1/2"-10"

Temperature:-10~120 C

Connection:union diaphragm valve

Body material:CPVC, FRPP, PPH, PVDF

Certificate:ISO9001:2008 CE

Standard:DIN ANSI ASTM JIS BS CNS

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  • Description
  • Additional Information
  • Main structural features

    1.The seal diaphragm is made of F46 or PFA，the number of folds is ≥120000 times，and the corrosion resistance is equivalent to F4.

    2.Adopting the screw lifting structure，the opening and closing force is huge and the stability is good.

     

    App temperature bound list

     

    Material Medium temperature°C Material Medium temperature°C
    CPVC -20℃~+95℃ PPH -20℃~+110℃
    UPVC -0℃~+65℃ PVDF -40℃~+150℃
    FRPP -14℃~+90℃    

     

     

     

    Diaphragm Valve Assembly Detail Drawing

     

    No. Name Material
    1 Cover limit AS
    2 Stud Steel，StainlessSteel.
    3 Retaining Nut FRPP
    4 Washer FRPP
    5 Wheel Alloy material
    6 Platen Steel，StainlessSteel
    7 Double headed stud and Nut Steel，StainlessSteel
    8 Bonnet FRPP、PVDF、UPVC、CPVC、PPH
    9 Yoke Nut Ht300 Steel
    10 Stem Steel，StainlessSteel
    11 Disc FRPP、PVDF、UPVC、CPVC、PPH、Steel、StainlessSteel、C.I.FRP
    12 Flim EPDM、FPM
    13 Diaphragm F46.PFA
    14 Body FRPP、PVDF、UPVC、CPVC、PPH
    15 Platen Steel，StainlessSteel

     

    Working pressure and working temperature list

    Calibe/MPa/℃

    FRPP

    PVDF

    UPVC

    CPVC

    14-40

    41-60

    61-100

    40-60

    61-90

    91-140

    20-40

    41-60

    61-80

    0-40

    41-60

    61-90

    15(1/2")

    0.8

    0.8

    0.7

    1

    0.9

    0.7

    0.8

    0.8

    0.7

    0.7

    0.7

    0.6

    20(3/4")

    0.8

    0.8

    0.7

    1

    0.9

    0.7

    0.8

    0.8

    0.7

    0.7

    0.7

    0.6

    25(1")

    0.8

    0.8

    0.7

    1

    0.9

    0.7

    0.8

    0.8

    0.7

    0.7

    0.7

    0.6

    32(11/4")

    0.7

    0.7

    0.6

    1

    0.9

    0.7

    0.7

    0.7

    0.6

    0.7

    0.7

    0.6

    40(11/2")

    0.7

    0.7

    0.6

    0.8

    0.7

    0.5

    0.7

    0.7

    0.6

    0.7

    0.7

    0.5

    50(2")

    0.7

    0.7

    0.6

    0.8

    0.6

    0.5

    0.7

    0.7

    0.6

    0.7

    0.7

    0.5

    65(21/2")

    0.7

    0.7

    0.6

    0.8

    0.5

    0.4

    0.7

    0.7

    0.6

    0.7

    0.7

    0.5

    80(3")

    0.7

    0.7

    0.6

    0.7

    0.5

    0.4

    0.7

    0.7

    0.6

    0.7

    0.7

    0.5

    100(4")

    0.7

    0.7

    0.6

    0.6

    0.5

    0.4

    0.7

    0.7

    0.6

    0.7

    0.6

    0.5

    125(5")

    0.5

    0.5

    0.4

    0.5

    0.4

    0.3

    0.5

    0.5

    0.4

    0.5

    0.5

    0.4

    150(6")

    0.5

    0.5

    0.4

    0.5

    0.3

    0.2

    0.5

    0.5

    0.4

    0.5

    0.4

    0.3

    200(8")

    0.3

    0.3

    0.2

    0.4

    0.25

    0.2

    0.3

    0.3

    0.2

    0.3

    0.3

    0.25

    250 (10")

    0.3

    0.3

    0.2

    0.4

    0.25

    0.2

    0.3

    0.3

    0.2

    0.3

    0.3

    0.2
    Dimension List

    DN (mm)

    D1

    D

    		 L h

    n

    Φ

    GB

    JIS

    ANSI

    GB

    JIS

    ANSI

    GB

    JIS

    ANSI

    15(1/2")

    95

    65

    70

    2.38

    125

    14

    4

    4

    4

    14

    15

    16

    20 (3/4")

    105

    75

    75

    2.76

    135

    18

    4

    4

    4

    14

    15

    16

    25 (1")

    115

    85

    90

    3.13

    145

    18

    4

    4

    4

    14

    19

    16

    32 (11/4")

    135

    100

    100

    3.45

    160

    18

    4

    4

    4

    18

    19

    16

    40 (11/2")

    145

    110

    105

    3.88

    180

    20

    4

    4

    4

    18

    19

    16

    50 (2")

    160

    125

    120

    4.74

    210

    21

    4

    4

    4

    18

    19

    19

    65 (21/2")

    180

    145

    140

    5.49

    250

    22

    4

    4

    4

    18

    19

    19

    80 (3")

    195

    160

    150

    6

    300

    24

    8

    8

    4

    18

    19

    19

    100 (4")

    215

    180

    175

    7.5

    350

    26

    8

    8

    8

    18

    19

    19

    125 (5")

    245

    210

    210

    8.5

    400

    30

    8

    8

    8

    18

    23

    22

    150 (6")

    280

    240

    240

    9.51

    455

    30

    8

    8

    8

    22

    23

    22

    200 (8")

    335

    295

    290

    11.75

    570

    35

    8

    12

    8

    22

    23

    22

    250 (10")

    390

    350

    355

    14.25

    680

    38

    12

    12

    12

    22

    25

    25

    300 (12")

    445

    400

    400

    17

    680

    38

    12

    16

    12

    22

    25

    25
Watch overview
Double Union Diaphragm Valve DN25

Carrying Your Dream To The World Quality is Life

We Are Leading Company In This Field, We Provide Specific Solutions For Our Every Customers
A diaphragm valve is a type of valve that uses a flexible diaphragm to separate the flow passage from the valve's operating mechanism. The diaphragm, which is typically made of rubber or another flexible material, is connected to a stem that passes through the valve body. When the stem is moved up or down, it compresses or decompresses the diaphragm, which in turn opens or closes the flow passage.
Diaphragm valves are often used in applications where there is a need to isolate the flow passage from the valve's operating mechanism in order to prevent contamination or leakage. They are widely used in chemical, pharmaceutical, food, and beverage industries. Also, it is widely used in cleanrooms, sanitary and sterile applications. They can also be used in applications where the fluid being controlled is abrasive or corrosive, as the diaphragm can be made of materials that are resistant to these conditions.
Diaphragm valves are designed to provide a long service life and low cost of ownership. A wide range of materials, connections and flow ratings tests are available. Diaphragm Valves offer an excellent compromise between reliability, cost and performance.
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