Butterfly buffer check valve

Ever-Power Machinery provides customers with high-qualityButterfly buffer check 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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HH47 butterfly type buffer check valve
Product number:HH47
product description:

  This drain check valve seals the secondary ground, the three-center eccentric, and the large secondary eccentricity of the valve plate to ensure zero leakage after closing. The small damping when opening the valve ensures the smooth opening of the valve plate, and the two-stage closing speed guarantees the speed, while being effective. Buffer, eliminate the impact of water hammer.

Product Usage:

1. This valve is suitable for large-diameter water or steam and other medium pipelines. It has a non-return function, can realize fast and slow closing, and effectively prevent water hammer impact.
2. The triple eccentric sealing structure ensures zero leakage, smooth opening action and low flow resistance.
3. The fast closing section basically has no resistance, the slow closing section has a smooth buffer, no water hammer, and no impact noise.
4. The triple eccentricity of the sealing pair and the large secondary eccentric structure of the valve plate can separate when the sealing pair is opened, and seal when the contact is closed, which effectively reduces the wear of the cover and extends the service life.


The main technical parameters

Nominal pressure
PN
ANSI
0.25~6.4MPa
150LB-300LB
Nominal Sutra
PN2.5(DN300~DN2000),PN6(DN300~DN2000),PN10(DN300~DN1600),PN16(DN300~1000),PN25,PN40,PN64(DN300~DN800)
Strength test
1.5 times
Sealing test
1.1 times
Body material
grey cast iron
Ductile iron
Carbon steel C
Alloy Steel I
Stainless steel P/R
Operating temperature
0 ~ 150
-15~300℃
-29~425℃
-29~530℃
-196~600℃
Applicable medium
Water, steam, gas, oil, etc.
Water, steam, gas, oil, etc.
Water, steam, gas, oil, etc.
Water, steam, gas, oil, etc.
Acetic acid, nitric acid

Executive standard

Design and manufacture
Flange connection
Structure length
Pressure test
GB122236
GB17241.6, GB9113
GB12221
ZBJ16006
ANSI B16.34
ANSI B16.5 or MSS-SP-44CL
API609
AP1598

HH47 type butterfly buffer check valve main outline and connection dimensions                              Unit: mm  

DN
L
B1
B2
Flange connection size of each nominal pressure level
Remarks
0.25
0.6
1.0
1.6
2.5
4.0
6.4
150LB
300LB
300
178
1000
809
GB / T17241.6
GB / T9113

ANSI B16.5

MSS-SP-44CL

350
190
1000
838
400
216
1000
862
450
222
1000
887
500
229
1465
905
600
267
1465
960
700
292
1465
1015
800
318
1465
1070
900
330
1465
1120
1000
410
1465
1170
1200
470
1465
1285
1400
530
1465
1400
1600
600
1725
1525
1800
670
1725
1650
2000
760
1725
1889

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