Epoxy Coating Disc Butterfly Valve with Bare Shaft

Size Range: DN50-DN200

Body Style: Wafer Universal

Pressure: PN10,PN16,Class125,JIS10K

Body Material: Cast Iron Epoxy Painting

Disc Material: CF8,CF8M Single Shaft Epoxy Resin Painting

Stem Material: SS416 pin type.#45 pin type

Seat Material: EPDM Hard Back Seat,NBR Hard back Seat

Disc Type: With Pin

Handle: Bare Shaft ISO5211 standard

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Epoxy Coating Disc Butterfly Valve with Bare Shaft 

1.Center line disc   
2.Anti-Blow Out Stem
3.Low Friction Body Seat
4.Zero Leakage
5.Small in size  
6.Light in weight
7.Long service life   
8.Can be used in cutting off and regulation medium
9.Simple, compact structure, quick 90 degree on-off operation


DN H1 H2 H3 L DIN PN16
50 75 129 32 43 125 4-Ø18
65 82 136 32 46 145 4-Ø18
80 99 153 32 46 160 8-Ø18
100 110 167 32 52 180 8-Ø18
125 125 193 32 56 210 8-Ø18
150 145 209 32 56 240 8-Ø23
200 170 251 40 60 295 12-Ø23
250 210 280 45 68 355 12-Ø26
300 240 315 45 78 410 12-Ø26

Technology Standard

Adoptive Standards
Valve Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1,JIS B2002
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16/JIS10K
Top Flange: ISO5211


Test Standards
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


1.Water Treatment Plant     
3.Drilling Rigs 4. Heating & Air Conditioning
5.Paper Industry   
6.Chemical Industry
7.Gas Plant    
8.Pneumatic Conveyors
9.Sugar Industry   
10.Waste Effluent Treatment Plant
11.Cooling Water Circulation     
12.Compressed Air


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