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671XPneumatic Soft Seal Butterfly ValveOverview
Q671X Pneumatic Soft Seal Butterfly Valve features 90° rotary switching with ease, reliable sealing, and long service life. It is widely used in water supply and drainage systems of water plants, power plants, steel plants, papermaking, chemical, and food industries for regulation and shut-off purposes.
Q671X Pneumatic Soft Seal Butterfly ValveFeatures:
1. The valve adopts a double eccentric structure, providing a sealing function that tightens as it closes, ensuring reliable sealing performance.
2. The sealing pair materials are stainless steel and oil-resistant rubber, offering a long service life.
3. The rubber sealing ring can be located either on the valve body or the butterfly plate, making it suitable for media with different characteristics, providing options for users.
4. The butterfly plate adopts a frame structure, providing high strength, large flow area, and low flow resistance.
5. The entire valve is painted with baked enamel, effectively preventing rust. By simply replacing the sealing seat material, it can be used for different media.
6. The valve features bidirectional sealing, allowing installation regardless of media flow direction or spatial constraints. It can be installed in any orientation.
7. The valve has a unique structure, offering flexible, labor-saving, and convenient operation.
Q671X Pneumatic Soft Seal Butterfly ValveMain Technical Parameters:
Nominal DiameterDN (mm)
50–2000
50–1600
Nominal PressurePN (MPa)
0.6
1
1.6
Seal Test(MPa)
0.66
1.1
1.76
Strength Test(MPa)
0.9
1.5
2.4
Applicable Temperature
Rubber: -40℃–90℃ Fluororubber: -20℃–200℃
Applicable Media
Water, air, natural gas, oil products, and weakly corrosive fluids
Leakage Rate
Complies with GB/T13927-92 standard
Drive Method
Worm gear drive, electric, pneumatic, hydraulic
Q671X Pneumatic Soft Seal Butterfly ValveMain Component Materials:
Component Name
Material
Valve Body
WCB, QT450-10, HT200, HT250
Butterfly Plate
Valve Shaft
2Cr13
Sealing Ring
Oil-resistant Rubber
Packing
Flexible Graphite
Q671X Pneumatic Soft Seal Butterfly ValveExecution Standards:
Manufacturing Standard
GB/T 122387-89
Flange Standard
GB9113-2000, GB17241.6-1998
Structure Length Standard
GB12221-89
Inspection Standard
GB/T 13927-92
Q671X Pneumatic Soft Seal Butterfly ValveConnection Dimensions:
Nominal Diameter
Structure Length(Standard Value)
Overall Dimensions
Connection Dimensions(Standard Value)
(Reference Value)
0.6MPa
1.0MPa
1.6MPa
Millimeters
Inches
L
H
H0
A
B
D0
n-d
50
2
43
63
315
180
65
110
4-14
125
4-18
2/1/2
46
70
330
130
145
80
3
83
390
245
72
150
160
8-18
100
4
52
105
431
240
<極>170
5
56
115
455
200
210
