Pneumatic wafer type hard sealing butterfly valve

Ever-Power Machinery provides customers with high-qualityPneumatic wafer type hard sealing butterfly valve product.Adhering to the tenet of "Quality First, Integrity Service", we will provide users with high-quality products and services with reasonable prices and reliable quality!


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D673H Pneumatic Wafer Type Hard Seal Butterfly Valve
Product number:D673H
product description:

  Based on the introduction of foreign advanced technology, our factory adopts precision J-shaped elastic sealing ring and three-eccentric multi-layer metal hard sealing structure. It is widely used in metallurgy, electric power, petrochemical, and water supply and drainage with a medium temperature of ≤425℃. It is used for regulating flow and carrying and breaking fluid on industrial pipelines such as municipal construction.The valve adopts a triple eccentric structure. The valve seat and the sealing surface of the disc are made of different hardness and stainless steel. It has good corrosion resistance and long service life. This valve has two-way sealing function for military and postal services. The product meets the national GB/T13927-92 valve pressure Test accuracy.

Features:

1. This valve adopts a triple eccentric sealing structure, the valve seat and butterfly plate are almost wear-free, and it has a tighter and tighter sealing function.
2. The sealing ring is made of stainless steel, which has the dual advantages of metal hard seal and elastic seal. It has excellent sealing performance, corrosion resistance and long service life regardless of low temperature and high temperature.
3. The sealing surface of the disc plate adopts surfacing welding cobalt-based cemented carbide, which is wear-resistant and has a long service life.
4. The large-size butterfly plate adopts the quilted frame structure, which has high strength, large flow area and small flow resistance.
5. This valve has a two-way sealing function. It is not restricted by the flow direction of the medium during installation and is not affected by the spatial position. It can be installed in any direction.
6. The drive device can be installed in multiple positions (rotated by 90° or 180°), which is convenient for users to use.


The main technical parameters

Nominal through DN (mm)
50 ~ 2000
Nominal pharmacology PN (MPa)
0.6
1.0
1.6
2.5
Seal test (MPa)
0.66
1.1
1.76
2.75
Strength test (MPa)
0.9
1.5
2.4
3.75
proper temperature
Carbon steel: -29℃~425℃ Stainless steel: -40℃~650℃
Applicable medium
Water, air, natural gas, oil and weakly corrosive fluids
Leak rate
Comply with GB/T13927-92 standard
Driving method
Worm gear drive, electric, pneumatic, hydraulic

Material of main parts

Part Name
Ingredients
Valve body
WCB, alloy steel, stainless steel, QT450-10
Butterfly board
WCB, alloy steel, stainless steel, QT450-10
Valve shaft
2Cr13 stainless steel, alloy steel
Sealing ring
Stainless steel ring
filler
Flexible graphite

Adopt the standard

Manufacturing Standards
JB/T 8527-97
Flange standard
GB9113-2000
Structure length standard
GB12221-89
Inspection standards
GB / T 13927-92

D673H-10/16/Pneumatic wafer type hard seal butterfly valve main outline and connection dimensions                                (Unit: mm)

Nominal pass (DN)

Main dimensions
Flange size and bolt specifications
1.0MPa
1.6MPa
L
H
H1
D1
4-Ф-M
D1
4-Ф-M
50
43
625
112
125
F18
125
F18
65
46
625
115
145
F18
145
F18
80
49
645
120
160
F18
160
F18
100
56
675
138
180
F18
180
F18
125
64
715
164
210
F18
210
F18
150
70
800
175
240
F23
240
F23
200
71
850
208
295
M20
295
M20
250
76
925
243
350
M20
355
M24
300
83
1035
283
400
M20
410
M24
350
92
1070
310
460
M20
470
M24
400
102
1190
340
515
M24
525
M27
450
114
1250
380
565
M24
585
M27
500
127
1290
410
620
M24
650
M30
600
154
1455
470
725
M27
770
M33
700
165
1585
550
840
M27
840
M33
800
190
1700
640
950
M30
950
M36
900
203
1965
710
1050
M30
1050
M36
1000
216
2015
770
1160
M33
1170
M39
1200
254
2250
890
1380
M36
1390
M45

E-mial:[email protected]
Address: Desheng Road, Yongjia County, Zhejiang Province