This butterfly valve for flange connection form, is a long life, energy-efficient butterfly valve products. Widely used in electric power, petroleum, chemical industry, metallurgy, municipal construction and other industrial piping for truncated or adjust medium flux.
Model: D43, D343, D643, D943
1, the structure size is short, small volume, light weight, convenient operation;
2, with the shaft structure, butterfly plate the intensity is high, the flow area is large, small flow resistance, save energy;
3, butterfly plate sealing surface using cobalt-based carbide surfacing, sealing surface wear resistance, long service life;
4, this valve adopts triple eccentric seal structure, the seat and disc almost no wear and tear, have the close tight sealing function.
Manufacturing standards |
JB/T8527 |
|
The length of the structure |
GB/T12221 |
|
Mating flange |
JB/T74~90、HGJ44~76、GB/T9112~9131 |
|
Quality assurance |
ISO9001 |
|
Pressure and temperature rating |
GB/T9131、HGJ67、JB/T74 |
|
The test and verify |
GB/T13927 |
|
Nominal diameter DN |
40~4000mm |
|
Nominal pressure PN |
0.25-4.0Mpa |
|
Test pressure PS |
Seal |
1.1×PN |
The intensity of |
1.5×PN |
|
Pressure of work |
1.0×PN |
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