Butterfly valve suppliers

Butterfly valve

Butterfly valve

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.

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Butterfly valve Details


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

Name of parts :
 Flange butterfly valve parts material
Body :
Ductile iron 
Butterfly board :
Ductile iron 
Valve shaft :
2Crl3 stainless steel, alloy steel
Sealing ring :
Stainless steel ring
Filler :
Flexible graphite

 

Nominal pass DN (mm)
50~2000
Nominal pressure FN (MPa):
0.6
1.0
1.6
2.5
Seal test (MFa):
0.66
1.1
1.76
2.75
Strength test (MPa) :
0.9
1.5
2.4
3.75
Applicable media:
carbon steel: -29 ℃ ~ 425 ℃ stainless steel: -40 ℃ ~ 650 ℃
Applicable medium:
water, air, natural gas, oil and weakly corrosive fluids
Leakage:
standard GB / T13927-92 standard
Drive mode:
worm gear, electric, pneumatic, hydraulic

 

 

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