Wafer Butterfly Valve

Product variants

Wafer Soft Seal Butterfly Valve

Size Range: 2“-100”（DN50-DN2500）
Pressure: PN10,PN16，Class150
Body Materials: Ductile Iron/ WCB/CF8/CF8M
Disc Materials: Ductile Iron/ WCB/CF8/CF8M
Seat Materials: NBR, EPDM,PTFE
Connection: Wafer
Application fields: Municipal construction, water treatment, water supply and drainage, water conservancy projects, etc.

Product Advantages
  1. All products can provide the pressure test: All Yuming products can provide the pressure test report before leaving the factory.
  2. High performance seat rubber: The rubber content is 50%, and the switch life is more than 30000 times
  3. Soft seat: Compared with the hard seat, the contact surface between pipes and flanges is more wider than hard seat, and sealing performance of installation is better, and the special flange of the butterfly valve is not required;
  4. Axial seal: The shaft is supported by 4 oil-free bearings, with o-ring and oil seal double seal structure design, smaller torque and reliable seal;
  5. Surface coating: Epoxy powder coating is adopted, with strong adhesion and good weather resistance. It can be used indoors and outdoors.
  6. Ductile iron handle: The handle is made of ductile iron, compared with Stamping handle, ductile iron handle is more better strength, stronger corrosion resistance and much more durable. The end handle with half-round structure design, is no edges and corners and feels very good.
  7. The design of shaft is blow-off resistant: The no-pin butterfly valve is designed with anti blow-off structure, and handle can be changed under pressure.
Design standards
Design and manufacturing standards: GB/T 12238
Structure length standard: GB/T 12221
Test standard: GB/T 13927
Upper flange connection standard: ISO 5211
Flange size standard: GB/T 17241.6, ASME B16.5, ASME B16.47,
ASME B16.1, JIS B2220

Material of main parts
Body material: DI
Butterfly plate material: DI, CF8, CF8M, CF3, CF3M, 1.4529, C594, C598
Seat material: EPDM, NBR, Viton
Valve shaft material: SS416, SS420, SS304

 
DATA
DN A D1 L1 L2 L3 B φD2 φD3 n-φd L
1.5″ DN40 34 62.5 55.5 111.5 25 9 65 50 4-8 249
2″ DN50 43 80 72 132 25 9 65 50 4-8 249
2.5″ DN65 46 95 86 138 25 9 65 50 4-8 249
3″ DN80 46 113 96 153 25 9 65 50 4-8 249
4″ DN100 52 135 108 167 28 11 90 70 4-10 283
5″ DN125 56 163 125 184 28 14 90 70 4-10 283
6″ DN150 56 190 138 195 28 14 90 70 4-10 283
8″ DN200 60 244 170 236 33 17 125 102 4-12 390
10″ DN250 68 298 209 266 33 22 125 102 4-12 390
12″ DN300 78 350 236 305 33 22 125 102 4-12 540

Stainless Steel Butterfly Valve

Size Range: DN50-DN150
Pressure: PN6/10/16、5/10K、CL150
Temperature: – 20 ~ 120 ℃
Body Materials: SS304
Seat Materials: EPDM/NBR
Disc Materials: SS304/SS316/C954
Stem Materials: 420/SS304/SS316
Applicable medium: Water and neutral liquid
Application field: Water supply and drainage, water treatment, water conservancy projects, etc.

Product advantages:

1.YUMING patent products, patent certification.
The product side flanges comply with national, German, Russian, American, British and Japanese standards and other domestic and international standards for multiple pressures, easy connection and wide adaptability, which can reduce the type of purchase and stock.

2.The thickness of valve body wall is up to standard.
The valve body wall thickness meets the requirement of GB 26640, the thickness is up to the standard, and the pressure strength is guaranteed.

3.Stainless steel body for more complex operating conditions
Stainless steel body, stronger strength, better toughness, good corrosion resistance, can be used in more complex conditions, better resistance to high and low temperature performance.

4.Good sealing and long service life of valve seat
The valve seat is made of imported rubber material, with more than 50% rubber content; Elongation at break greater than 350%, valve sealing reliable, long life.

5.Stainless steel butterfly plate is corrosion resistant
Stainless steel plate, better corrosion resistance, more beautiful.

 
DATA
Parts 1   2   3   4   5  
Name Body   Seat   Disc   Stem   Handle  
Material SS304   EPDM   SS304   420   DI  
Size   L L1 L2 ΦD1 ΦD2 PN 10   PN 16  
DN NPS（inch）           ΦK n-Φd ΦK n-Φd
50 2″ 43 71 129 73.3 87.1 125 4-Φ18 125 4-Φ18
65 2 1/2″ 46 79 136 86 100.4 145 4-Φ18 145 4-Φ18
80 3″ 46 95 153 100.9 116 160 8-Φ18 160 8-Φ18
100 4″ 52 110 167 132 147.6 180 8-Φ18 180 8-Φ18
125 5″ 56 122 193 156 172 210 8-Φ18 210 8-Φ18
150 6″ 56 141 209 185.4 202 240 8-Φ22 240 8-Φ22

PTFE Liner Wafer Butterfly Valve

Size Range： 1 1/2″~24″(DN40~DN600）
Pressure： PN10, PN16, Class150
Body Materials： Ductile Iron/ WCB/CF8/CF8M
Disc Materials： DI/CF8/CF8M +PTFE lined
Seat Materials： PTFE
Connection： Wafer
Painting： Custom Epoxy resin
OP： Handle lever / Gear

Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.
Seat Test: 1.1 times the working pressure with water.
Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.
Special Test: On request, any other test can be carried out according to special instruction by client.
 
DATA
 
SIZE A B C d0 PCD N-Q ISO5211 ∅K ∅E N-∅d1 B1×B1 L
DN40 120 57 33 12.6 110 4-19 F05 65 50 4-7 9×9 26
DN50 140 65 43 12.6 125 4-19 F05 65 50 4-7 9×9 26
DN65 150 75 46 12.6 145 4-19 F05 65 50 4-7 9×9 30
DN80 158 93 46 12.6 160 8-19 F05 65 50 4-7 9×9 30
DN100 176 109 52 15.77 180 8-19 F05 90 70 4-10 11×11 30
DN125 190 125 56 18.92 210 8-19 F07 90 70 4-10 14×14 30
DN150 211 140 56 18.92 240 8-22 F07 90 70 4-10 14×14 40
DN200 235 170 60 22.1 295 8-22 F07 125 102 4-12 17×17 40
DN250 265 205 68 28.45 350 12-22 F10 125 102 4-12 22×22 40
DN300 305 238 78 31.6 400 12-22 F10 125 102 4-12 22×22 40
DN350 368 267 78 31.6 460 16-22 F10 125 102 4-12 22×22 40
DN400 400 309 102 33.15 515 16-26 F14 175 140 4-18 27×27 50
DN450 422 328 114 37.95 565 20-26 F14 175 140 4-18 27×27 70
DN500 480 361 127 41.12 620 20-26 F14 175 165 4-18 36×36 80
DN600 562 459 154 50.62 725 20-30 F16 210 254 4-23 36×36 80