- 面议
起订量：
对夹升降式止回阀
- 型号
该企业相似产品
面对日趋激烈的市场竞争和经济一体化的严峻考验，齐威阀门将始终坚持“*适应和满足市场”的企业方针，恪守“诚信为本，追求*”企业理念，发扬“团结奋进，求新务实”企业精神，不懈努力，加倍奋斗，为新老客户提供更新更好的产品和服务，为客户创造价值。
上海齐威阀门始终遵循的宗旨，坚持以质量求生存、品质求发展，不断开拓创新。齐威全体员工以“与时俱进，再铸辉煌”与社会各界同仁携手共创阀业天地。
详细信息
流体力学性能：H71对夹双瓣旋启式止回阀的流体阻力系数、流量系数及开启压力：
公称通径 | 阀门全开启时的流体阻力系数 | 常温下阀门全开启时的水讲E量系数 | 流体的流向 | |||||
DN | NPS | Kv(m3=／h) | CV(U.S) | CV(U.K) | ↑ | ↓ | → | |
开启压力近似值KPa | ||||||||
15 | 1/2 | 6.4 | 2.6 | 3.0 | 2.5 | 3 | 2 | 2.5 |
20 | 3/4 | 5.1 | 6.4 | 7.5 | 6.3 | 3 | 2 | 2.5 |
25 | 4 | 4.1 | 12.6 | 14.8 | 12.3 | 3 | 2 | 2.5 |
32 | 11/4 | 4.1 | 19.7 | 23.1 | 19.3 | 3 | 2 | 2.5 |
40 | 11/2 | 3.8 | 29.5 | 63.9 | 28.9 | 3 | 2 | 2.5 |
50 | 2 | 3.5 | 54.6 | 99.9 | 63.5 | 3 | 2 | 2.5 |
65 | 21/2 | 3.5 | 85.4 | 150 | 83.7 | 3 | 2 | 2.5 |
80 | 3 | 3.2 | 128 | 286 | 125 | 3 | 2 | 2.5 |
100 | 4 | 2.8 | 244 | 286 | 249 | 3 | 2 | 2.5 |
125 | 5 | 2.9 | 375 | 439 | 368 | 3 | 1 | 2.2 |
150 | 6 | 3.1 | 522 | 611 | 512 | 3 | 1 | 2.2 |
200 | 8 | 3.2 | 915 | 1070 | 897 | 3 | 1 | 2.2 |
公称压女 | 公称通径 | 尺寸(mm) | 重量 | 配管法兰(供参考) | ||||||||
L | D | D2 | D3 | D4 | D5 | 螺栓孔中心 | 螺栓 | 螺栓直径d | 螺栓 | |||
PN1.0MPa | 15 | 16 | 52 | 15 | 24 | 31 | 40 | 0.12 | 65 | 4 | M12 | 75 |
20 | 19 | 62 | 19 | 30 | 40 | 50 | 0.24 | 75 | 4 | M12 | 90 | |
25 | 22 | 70 | 24 | 36 | 47 | 58 | 0.34 | 85 | 4 | M12 | 90 | |
32 | 28 | 83 | 31 | 46 | 56 | 68 | 0.53 | 100 | 4 | M16 | 100 | |
40 | 31.5 | 93 | 39 | 55 | 66 | 78 | 0.80 | 110 | 4 | M16 | 105 | |
| 50 | 40 | 108 | 48 | 65 | 78 | 90 | 1.2 | 125 | 4 | M16 | 125 |
| 65 | 46 | 128 | 62 | 80 | 95 | 110 | 1.8 | 145 | 4 | M16 | 130 |
80 | 50 | 142 | 76 | 96 | 110 | 125 | 2.2 | 160 | 8 | M16 | 135 | |
100 | 65 | 162 | 95 | 115 | 135 | 150 | 3.4 | 180 | 8 | M16 | 150 | |
125 | 90 | 192 | 110 | 125 | 132 | - | 9.0 | 210 | 8 | M16 | 180 | |
150 | 106 | 218 | 127 | 150 | 158 | - | 14 | 240 | 8 | M20 | 210 | |
PN1.0MPa | 200 | 140 | 273 | 165 | 200 | 208 | - | 24 | 295 | 8 | M20 | 240 |
PN1.6MPa | 200 | 140 | 273 | 165 | 200 | 208 | - | 24 | 295 | 12 | M20 | 240 |
PN2.5MPa | 15 | 16 | 52 | 15 | 24 | 31 | 40 | 0.12 | 65 | 4 | M12 | 80 |
20 | 19 | 62 | 19 | 30 | 40 | 50 | 0.24 | 75 | 4 | M12 | 90 | |
25 | 22 | 72 | 24 | 36 | 47 | 58 | 0.34 | 85 | 4 | M12 | 90 | |
32 | 28 | 83 | 31 | 46 | 56 | 68 | 0.53 | 100 | 4 | M16 | 110 | |
40 | 31.5 | 93 | 39 | 55 | 66 | 78 | 0.80 | 110 | 4 | M16 | 115 | |
50 | 40 | 108 | 48 | 65 | 78 | 90 | 1.2 | 125 | 4 | M16 | 125 | |
65 | 46 | 128 | 62 | 80 | 95 | 110 | 1.8 | 145 | 8 | M16 | 135 | |
80 | 50 | 142 | 76 | 96 | 110 | 128 | 2.2 | 160 | 8 | M16 | 145 | |
100 | 60 | 168 | 95 | 115 | 135 | 150 | 3.8 | 190 | 8 | M20 | 160 | |
125 | 90 | 194 | 110 | 125 | 132 | - | 9.2 | 220 | 8 | M24 | 205 | |
150 | 106 | 224 | 127 | 150 | 158 | - | 15 | 250 | 8 | M24 | 225 | |
200 | 140 | 284 | 165 | 200 | 208 | - | 26 | 310 | 12 | M24 | 260 | |
PN4.0MPa | 15 | 16 | 52 | 15 | 24 | 31 | 40 | 0.12 | 65 | 4 | M12 | 80 |
20 | 19 | 62 | 19 | 30 | 40 | 50 | 0.24 | 75 | 4 | M12 | 90 | |
25 | 22 | 72 | 24 | 36 | 47 | 58 | 0.34 | 85 | 4 | M12 | 90 | |
32 | 28 | 83 | 31 | 46 | 56 | 68 | 0.53 | 100 | 4 | M16 | 110 | |
40 | 31.5 | 93 | 39 | 55 | 66 | 78 | 0.80 | 110 | 4 | M16 | 115 | |
50 | 40 | 108 | 48 | 65 | 78 | 90 | 1.2 | 125 | 4 | M16 | 125 | |
65 | 46 | 128 | 62 | 80 | 95 | 110 | 1.8 | 145 | 8 | M16 | 135 | |
80 | 50 | 142 | 76 | 96 | 110 | 128 | 2.2 | 160 | 8 | M16 | 145 | |
100 | 60 | 168 | , 95 | 115 | 135 | 150 | 3.8 | 190 | 8 | M20 | 160 | |
125 | 90 | 194 | 110 | 125 | 132 | - | 9.2 | 220 | 8 | M24 | 205 | |
150 | 106 | 224 | 127 | 150 | 158 | - | 15 | 250 | 8 | M24 | 225 | |
200 | 140 | 291 | 165 | 200 | 208 | - | 28 | 320 | 12 | M27 | ||
