Our enterprise since its inception, constantly regards product good quality as organization life, constantly improve production technology, strengthen merchandise high quality and continuously strengthen enterprise total good quality administration, in strict accordance with all the national standard ISO 9001:2000 for Manufacturer of China UPVC Body Wafer Typenbr EPDM Rubber Sealing Worm Gear Manual Operation Butterfly Valve, We believe weâll become a leader in building and producing top quality merchandise in the two Chinese and international markets. We hope to cooperate with much more close friends for mutual gains.
Our enterprise since its inception, constantly regards product good quality as organization life, constantly improve production technology, strengthen merchandise high quality and continuously strengthen enterprise total good quality administration, in strict accordance with all the national standard ISO 9001:2000 for China Butterfly Valve, Valve Butterfly, The quality of our products is equal to OEMâs quality, because our core parts are the same with OEM supplier. The above products have passed professional certification, and we not only can produce OEM-standard products but we also accept Customized Products order.
Product Structure Features£º
1. Upper flange: standardized driving device flange, conforming to ISO5211
2. Valve body: ductile iron and other applicable materials shall be selected
3. Valve plate: the streamlined valve plate can effectively reduce pressure loss and flow loss. The edge of the valve plate is processed by spherical surface and polished manually. It has the characteristics of small specific operating torque, long service life of the valve seat and good sealing performance. It can be selected according to a variety of media materials. It is connected with the internal transmission of the rotating shaft, with better anti-corrosion performance.
4. Rubber valve seat: Shoe valve seat and integrated valve seat can completely isolate the valve body from the medium. Compared with other structural valves, the valve seat is installed more firmly and has a very low torque value. There is no need to add flange gaskets at both ends during installation. It can be applied to various materials and suitable for the end of the pipeline (lug type).
5. Valve rod: the central line type double half shaft valve rod is designed with flat, square and hexagonal valve plate transmission, two-way sealing, no leakage, and no flow restriction during installation.
7. âOâ ring: NBR butyl rubber, effective dust prevention and internal leakage prevention.
8. âUâ type lock plate and circlip can effectively prevent the shaft from blowing out.
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Main Performance Spcification
Nominal diameter | DN100-DN1200 | DN100-DN1200 | DN100-DN1200 | |
Nominal pressure | 1.0 | 1.6 | 2.5 | |
Test pressure | Seal£¨MPa£© | 1.1 | 1.76 | 2.75 |
Shell£¨MPa£© | 1.5 | 2.4 | 3.75 | |
Applicable temperature | -10¡æ~100¡æ | |||
Applicable medium | Water, sewage, air, steam, food, medicine, various oils, acids, alkalis, salts, etc |
Main parts
Part name | texture of material |
valve body | Nodular cast iron, gray cast iron, cast steel body, stainless steel body |
Valve plate | Nodular cast iron |
Valve stem | SS410¡¢SS416¡¢SS431¡¢SS304¡¢20Cr13 |
valve seat | EPDM¡¢NBR¡¢Natural rubber, fluororubber, silica gel¡¢PTFE |
O-ring | Ethylene propylene rubber, butadiene rubber |
axle sleeve | PTFE, bronze |
Main overall dimensions
Specifications | A | B | C | D | E | f | G | H | J | K | L | n- 1 | 2 | a | ||
mm | inch | |||||||||||||||
50 | 2 | 142.7 | 68 | 43 | 51.7 | 50 | 13 | 35 | 4.95 | 30.81 | 65 | 28 | 4-8 | 9*9 | - | 45 |
65 | 21/2 | 155.4 | 77 | 46 | 63.3 | 50 | 13 | 35 | 9.25 | 45.21 | 65 | 28 | 4-8 | 9*9 | - | 45 |
80 | 3 | 161.8 | 89 | 46 | 77.7 | 50 | 13 | 35 | 16.8 | 64.54 | 65 | 28 | 4-8 | 9*9 | - | 45 |
100 | 4 | 200 | 114 | 52.07 | 104 | 70 | 13 | 55 | 25.97 | 90.03 | 90 | 28 | 4-10 | 11*11 | - | 45 |
125 | 5 | 213 | 127 | 55.5 | 123.3 | 70 | 13 | 55 | 33.9 | 110.1 | 90 | 28 | 4-10 | 14*14 | - | 45 |
150 | 6 | 226 | 139 | 55.75 | 155.6 | 70 | 13 | 55 | 49.93 | 145.27 | 90 | 28 | 4-10 | 14*14 | - | 45 |
200 | 8 | 260 | 175 | 60.58 | 202.5 | 102 | 13 | 70 | 70.96 | 193.23 | 125 | 45 | 4-12 | 17*17 | - | 45 |
250 | 10 | 292 | 203 | 68 | 250.5 | 102 | 13 | 70 | 91.25 | 241 | 125 | 45 | 4-12 | 22*22 | - | 45 |
300 | 12 | 337 | 242 | 76.9 | 301.6 | 102 | 20 | 70 | 112.35 | 291.63 | 125 | 45 | 4-12 | 22*22/24*24 | - | 45 |
350 | 14 | 368 | 267 | 76.17 | 333.3 | 125 | 20 | 85 | 128.57 | 324.48 | 150 | 45 | 4-14 | - | 31.6 | 45 |
400 | 16 | 400 | 309 | 85.7 | 389.6 | 140 | 20 | 100 | 151.95 | 380 | 175 | 51 | 4-18 | - | 33.15 | 45 |
450 | 18 | 422 | 328 | 104.6 | 440.51 | 140 | 20 | 100 | 167.96 | 427.91 | 175 | 51 | 4-18 | - | 38 | 45 |
500 | 20 | 480 | 361 | 130.28 | 491.6 | 140 | 22 | 100 | 180.66 | 474 | 175 | 57 | 4-18 | - | 41.15 | 45 |
600 | 24 | 562 | 459 | 151.36 | 592.5 | 165 | 30 | 130 | 220.57 | 572.84 | 210 | 72 | 4-22 | - | 50.65 | 45 |
700 | 28 | 624 | 520 | 163 | 695 | 254 | 30 | 200 | 266 | 675.62 | 300 | 72 | 8-18 | - | 63.35 | 22.5 |
800 | 32 | 672 | 591 | 188 | 794.7 | 254 | 30 | 200 | 303.35 | 772.14 | 300 | 82 | 8-18 | - | 63.35 | 22.5 |
900 | 36 | 720 | 656 | 203 | 864.7 | 254 | 30 | 200 | 330.85 | 840.53 | 300 | 110 | 8-18 | - | 75 | 22.5 |
1000 | 40 | 800 | 721 | 216 | 965 | 254 | 30 | 200 | 374.5 | 940.52 | 300 | 142 | 8-18 | - | 85 | 22.5 |
1200 | 48 | 940 | 864 | 254 | 1160 | 298 | 34 | 230 | 453 | 1131 | 350 | 150 | 8-22 | - | 105 | 22.5 |