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◆Purpose
This kind of butterfly valve is widely utilized in metallurgy, power station, petroleum, chemical industry, water suply and drain tubing line open or close or adjusting medium. The medium temperature ≤425℃.
◆Feature
Because this butterfly valve adopt three-dimensional eccentric principle to design, makes the movement track on facing space reach to idenlization, and there are no attrition and no intervene between hermetical components. Furthermore, the hermetical material has been selected reasonably, thereby it ensure hermetic, antisepsis,wearable capability of valve, the main characteristic as below:
1. tiny moment for starting, flexible and convenient, save labor and energy.
2. Three-dimensional eccentric configuration forces disc close tighter ang tighter, and reach to reliable hermeticv capability and with no leakage.
3. it has characteristic of high temperature resistant, high pressure resistant, antisepsis, wearable, long service life etc.
◆Standard
Design criterion:GB/T 12238
Dimension:GB/T 12221
Flanged:GB/T 9113
Inspect and test:GB/T 13927
Marks:GB/T 12220
◆Specification
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Model
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D343H-16
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D343H-16P
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D343H-16R
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Work temperature(MPa)
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1.6
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Suitable temperature(℃)
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≤425
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≤200
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Suitable medium
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water、oil or uncorrosive medium
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Nitrate acid
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Acetic acid
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Material
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Body,disc
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WCB
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CF8/304
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CF3M/316L
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Stem
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2Cr13
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304
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316L
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Body seal face
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surfacing 507
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-
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-
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Disc Seal face
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304+Flexible graphite
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304+PTFE
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304+PTFE
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Packing
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Flexible graphite
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PTFE
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PTFE
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