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This series of butterfly valves are suitable to be used for industrial pipeline as two-way open-closing and regulating devices.The scope of regulation is from 4o°to 90°fully open.If the valve is one-way used,the recommended pressure direction of closing is shown on fig.
This series of butterfly valves are suitable to be used for industrial pipeline as two-way open-closing and regulating devices.The scope of regulation is from 4o°to 90°fully open.If the valve is one-way used,the recommended pressure direction of closing is shown on fig.
Features:
1.The disk is truss framed with two-plate and flow-resistent is lower.
2.It has reliable sealing structure for two-way stopping without any leakage.
3.The axle sleeves are self-lubricanted bearing. Oiling is not need and friction drag is small during operation.
4.Rubber sealing can be replaced on pipeline without removing the valve (DN>700).
5.Several kinds of actuators with reliable performance and agile operation are supplied for the liser's selection. Wear-resisting and corrosion-resisting.
MATERIALS OF MAIN PARTS
Main parts materials
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Name of parts ：
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Flange butterfly valve parts material
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Body ：
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Ductile iron |
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Butterfly board ：
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Ductile iron |
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Valve shaft ：
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2Crl3 stainless steel, alloy steel
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Sealing ring ：
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Stainless steel ring
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Filler ：
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Flexible graphite
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Nominal pass DN (mm)
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50~2000
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Nominal pressure FN (MPa)：
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0.6
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1.0
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1.6
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2.5
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Seal test (MFa):
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0.66
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1.1
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1.76
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2.75
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Strength test (MPa) :
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0.9
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1.5
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2.4
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3.75
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Applicable media：
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carbon steel: -29 ℃ ~ 425 ℃ stainless steel: -40 ℃ ~ 650 ℃
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Applicable medium:
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water, air, natural gas, oil and weakly corrosive fluids
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Leakage：
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standard GB / T13927-92 standard
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Drive mode：
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worm gear, electric, pneumatic, hydraulic
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Tieling Water Valve CO.,Ltd Is one of the key enterprises after the former Tieling Valve Works was reformed. It is the largest low pressure big diameter valve, penstock manufacturing base
