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(wěn)、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 |
| 適用溫度 Suitable Temp ( oC ) | ≤80 |
試驗壓力（MPa） TestingPressure | 殼 體Shell | 1.5 | 2.4 |
| 密 封Seal | 1.1 | 1.76 |
| 適用介質 Suitable Media | 水,弱腐蝕性介質等 Water , Weak Metallurgical Industry |
| 結構長度標準Face to face dimensions | GB/T 12221-2005 |
| 法蘭連接標準Flange Standard | GB/T 17241.6-98 |
主要零部件材質：Materials of Main Parts:
名 稱 Name | 材 料 Material |
閥 體 Body | 鑄鐵，不銹鋼 Cast Iron，Stainless Steel |
密封圈 Seal Ring | 丁腈橡膠NBR |
彈 簧Spring | 不銹鋼Stainless Steel |
閥蓋環(huán)Seal Shim Ring | 球墨鑄鐵或碳鋼 Ductile Bronze Carbon Steel |
主要外形尺寸及連接尺寸：Outline Dimensions & Connection Dimensions:
DN(mm) | L | D | K | P | Z-Φd |
25 | 110 | 115 | 85 | 48 | 4-Φ14 |
32 | 130 | 140 | 100 | 56 | 4-Φ18 |
40 | 140 | 150 | 110 | 63 | 4-Φ18 |
50 | 150 | 165 | 125 | 79 | 4-Φ18 |
65 | 170 | 185 | 145 | 97 | 4-Φ18 |
80 | 180 | 200 | 160 | 110 | 8-Φ18 |
100 | 190 | 220 | 180 | 127 | 8-Φ18 |
125 | 200 | 250 | 210 | 161 | 8-Φ18 |
150 | 210 | 285 | 240 | 180 | 8-Φ23 |
200 | 230 | 340 | 295 | 238 | 8-Φ23/12-Φ23 |
250 | 250 | 395/405 | 350/355 | 280 | 12-Φ23/12-Φ28 |
300 | 270 | 445/460 | 400/410 | 310 | 12-Φ23/12-Φ28 |
350 | 290 | 505/520 | 460/470 | 334 | 16-Φ23/16-Φ28 |
400 | 310 | 565/580 | 515/525 | 468 | 16-Φ28/16-Φ30S |
注：“/"上面尺寸為PN1.0Mpa尺寸，“/"下面尺寸為PN1.6Mpa尺寸。
