HH44X微阻缓闭止回阀产品概况
HH44X微阻缓闭消声止回阀产品简介:
HH44X微阻缓闭消声止回阀可用在清水、污水、海水等介质的排水水泵出口管道上，既能用于防止停泵时有压水流对水泵的冲击，又能防止介质的倒流，保证管线的使用安全。它具有结构新颖、体积小、重量轻、流体阻力小、密封可靠、启闭平稳、使用寿命长、关闭无噪声等特点。
Product Brief Introduction:
The valve is installed at the outlet of pump and suited to prevent media from flowing backwards and eliminate effectively damageable water hammer in pipelines flowing media of fresh water , polluted water , sea water. It has character as followings: modern structure ,small volume ,light weight ,low resistance ,reliable seal ,stable operation , long duration ,small volume.
主要性能参数：Main Performance Parameters:
公称压力Nominal Pressure( bar) | 10 | 16 |
适用温度 Suitable Temp ( oC ) | ≤85 |
试验压力（MPa） TestingPressure | 壳 体Shell | 1.5 | 2.4 |
密 封Seal | 1.1 | 1.76 |
适用介质 Suitable Media | 水、污水、海水等 Water, polluted water , sea water |
设计标准Design Standard | GB/T 12232-2005 |
试验检验标准 Test and check up standard | GB/T 13927-1992 |
结构长度标准Face to face dimensions | GB/T 12221 |
法兰连接标准Flange Standard | GB/T 17241.6-98 |
主要零部件材质：Materials of Main Parts:
名 称 Name | 材 料 Material |
阀 体 Body | 灰铸铁，铸钢 Cast Iron，Carbon Steel |
阀瓣Valve petal | 不锈钢Stainless Steel |
阀杆、活塞Stem、Piston | 不锈钢Stainless Steel |
弹 簧Spring | 不锈钢Stainless Steel |
阀 座Seat | 不锈钢Stainless Steel |
主要外形尺寸及连接尺寸：Outline Dimensions & Connection Dimensions:
DN(mm) | D | D1 | D2 | n-Φd | L | H |
50 | 165 | 125 | 100 | 4-Φ18 | 230 | 260 |
65 | 185 | 145 | 120 | 4-Φ18 | 290 | 320 |
80 | 200 | 160 | 135 | 8-Φ18 | 310 | 254 |
100 | 220 | 180 | 155 | 8-Φ18 | 350 | 288 |
125 | 250 | 210 | 185 | 8-Φ18 | 400 | 325 |
150 | 285 | 240 | 210 | 8-Φ23 | 480 | 400 |
200 | 340 | 295 | 265 | 12-Φ23 | 500 | 460 |
250 | 395/405 | 350/355 | 320 | 12-Φ23/12-Φ28 | 600 | 510 |
300 | 445/460 | 400/410 | 375/370 | 12-Φ23/12-Φ28 | 700 | 590 |
350 | 505/520 | 460/470 | 435/429 | 16-Φ23/16-Φ28 | 800 | 650 |
400 | 565/580 | 515/525 | 482/480 | 16-Φ28/16-Φ31 | 900 | .750 |
500 | 670/715 | 620/650 | 608/608 | 20-Φ28/20-Φ34 | 1100 | 860 |
600 | 780/840 | 725/770 | 718/720 | 20-Φ31/20-Φ37 | 1300 | 1030 |
700 | 895/910 | 840/840 | 788/794 | 24-Φ30/24-Φ37 | 1400 | 1270 |
800 | 1015/1025 | 950/950 | 898/901 | 24-Φ33/34-Φ41 | 1500 | 1510 |
