产品简介:
本系列产品可用在清水、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 | 25 |
试验压力（MPa） TestingPressure | 壳 体Shell | 1.5 | 2.4 | 3.75 |
| 密 封Seal | 1.1 | 1.76 | 2.75 |
铸铁法兰连接标准 Cast Iron Flange Standard | GB/T 17241.6-98 |
铸钢法兰连接标准 Carbon Steel Flange Standard | GB/T 9113.1-2000 |
主要零部件材质：Materials of Main Parts:
名 称 Name | 材 料 Material |
阀体，导流体Body, Flow deflector | 铸铁，球墨铸铁，铸钢 Cast Iron，Ductile Bronze，Carbon Steel |
阀座，轴瓦，阀瓣，轴Seat, Bearing bush, Valve petal, Stem | 青铜或不锈钢Bronze，Stainless Steel |
弹 簧Spring | 不锈钢Stainless Steel |
主要外形尺寸及连接尺寸：Outline Dimensions & Connection Dimensions:
DN(mm) | L |
50 | 120 |
65 | 150 |
80 | 180 |
100 | 240 |
125 | 300 |
150 | 350 |
200 | 450 |
250 | 500 |
300 | 550 |
350 | 575 |
400 | 600 |
450 | 650 |
500 | 700 |
