產品簡介:
本系列產品可用在清水、污水、海水等介質的排水水泵出口管道上，既能用于防止停泵時有壓水流對水泵的沖擊，又能防止介質的倒流，保證管線的使用安全。它具有結構新穎、體積小、重量輕、流體阻力小、密封可靠、啟閉平穩、使用壽命長、關閉無噪聲等特點。
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.
主要性能參數：Main Performance Parameters:
| 公稱壓力Nominal Pressure( bar) | 10 | 16 | 25 |
試驗壓力（MPa） TestingPressure | 殼 體Shell | 1.5 | 2.4 | 3.75 |
| 密 封Seal | 1.1 | 1.76 | 2.75 |
鑄鐵法蘭連接標準 Cast Iron Flange Standard | GB/T 17241.6-98 |
鑄鋼法蘭連接標準 Carbon Steel Flange Standard | GB/T 9113.1-2000 |
主要零部件材質：Materials of Main Parts:
名 稱 Name | 材 料 Material |
閥體，導流體Body, Flow deflector | 鑄鐵，球墨鑄鐵，鑄鋼 Cast Iron，Ductile Bronze，Carbon Steel |
閥座，軸瓦，閥瓣，軸Seat, Bearing bush, Valve petal, Stem | 青銅或不銹鋼Bronze，Stainless Steel |
彈 簧Spring | 不銹鋼Stainless Steel |
主要外形尺寸及連接尺寸：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 |
