| محابس صينية |
Butterfly Check Valve (Cast iron body / ST.ST. Disc) |
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Small in size, light in weight, compact in structure, easy in maintenance. The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.
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This Valve is short in lenght, so that it is rigid and easy to mount.
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This valve is tightly sealed , with no leakage under the pressure water test. Safe and reliable in operation.
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Connection flanges can be made of either cast iron or flat-wlded steel. The connection dimensions of flanges accord with the standards of GB 2555-18.
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This product has such characterastics as excellent retaining performance high safety and reliability and low flow resistance, applicable for systems in the industried of petrochemical, food proccessing, medicine, textile, paper-making. water supply a and drainage, metallurgy, energy and light industry, etc.
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Technical Data : |
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1 |
1.6 |
Mpa |
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1.5 |
2.4 |
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1.1 |
1.76 |
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-10°C+150°C |
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Fresh Water, Sewage, Sea Water, Salt Water, Air Vapour, Dood, Medicine, Oils, Acids, etc. |
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Scheme of butterfly swing check valve |
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NO |
Name |
Material |
1 |
Body |
Cast iron, carbon steed |
2 |
Stem |
Stainless steel |
3 |
Disc |
Cast brass, Ductile iron, stainless steel |
4 |
Sealing |
NBR, Neoprene, EPDM |
5 |
Spring |
Spring steel, Stainless steel |
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Overall & Installation Dimensions & Weight |
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Nomi. Dia |
O. Dia. of Pipe |
Flange |
Valve |
Weight |
DN |
Ø |
Ø2 |
Ø3 |
b |
f |
n-Ø0 |
F |
R° |
S |
Ø1 |
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50 |
57 |
165 |
125 |
18/22 |
3 |
4-18 |
43 |
28.8 |
19 |
107 |
1.5 |
65 |
73 |
185 |
145 |
20/24 |
3 |
4-18 |
46 |
36.1 |
20 |
127 |
2.4 |
80 |
89 |
200 |
160 |
20/24 |
3 |
8-18 |
64 |
43.4 |
28 |
142 |
3.6 |
100 |
108 |
220 |
180 |
22/26 |
3 |
8-18 |
64 |
52.8 |
26 |
162 |
5.7 |
125 |
133 |
250 |
210 |
24/28 |
3 |
8-18 |
70 |
65.7 |
30 |
192 |
7.3 |
150 |
159 |
285 |
240 |
24/28 |
3 |
8-23 |
76 |
78.6 |
31 |
218 |
9.0 |
200 |
219 |
340 |
295 |
24/30 |
3 |
8-23/12-23 |
89 |
104.4 |
33 |
273 |
17 |
250 |
273 |
395/405 |
350/355 |
26/32 |
3 |
12-23/12-26 |
114 |
127 |
45 |
328 |
26 |
300 |
325 |
445/460 |
400/410 |
28/34 |
4 |
12-23/16-26 |
114 |
147 |
45 |
378 |
42 |
350 |
377 |
505/520 |
460/470 |
28/34 |
4 |
16-23/16-26 |
127 |
173 |
50 |
438 |
55 |
400 |
426 |
565/580 |
515/525 |
30/38 |
4 |
16-26/16-30 |
140 |
198 |
54 |
489 |
75 |
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