產品簡介：
減壓閥一般分為隔膜閥和活塞閥兩大類，本公司生產的減壓閥口徑在DN500mm以下者采用隔膜型，口徑在DN600mm以上者采用活塞型，兩者之動作原理類似。減壓閥主要控制主閥的固定出口壓力，主閥出口壓力不因進口壓力變化而變化，并不因主閥出口流量的變化而改變其出口壓力。廣泛適用于工業給水、消防供水及生活用水管網系統。
Products Introduction:
Pressure reducing valves are usually divided into diaphragm valves and piston valves two categories, the caliber of the company’s production bellows DN500 using diaphragm type, and DN600 more in the use of piston type, whichever is the principle of similar moves. Pressure reducing valves mainly control the fixed export pressure of the head valve; the export pressure of the head valve doesn’t be change with the import pressure’s change and the export flow’s change of the head valve. It is widely used in the network system of the water supply、fire water supply and life water supply.
主要零部件材質：Material of Main Parts
序號Sequence Number | 部件名稱 Part Name | 材質Material |
1 | 閥體Body | 灰鑄鐵Cast Iron |
2 | 軸套Bushing | 不銹鋼Stainless Steel |
3 | 閥座Seat | 青銅Bronze |
5 | 密封Seal | EPDM |
6 | 閥板Disc | 灰鑄鐵Cast Iron |
7 | 墊片Flake | EPDM with Nylon |
9 | 螺母Bonnet | 灰鑄鐵Cast Iron |
10 | 彈簧Spring | 不銹鋼 Stainless Steel |
11 | 轉軸 Stem | 不銹鋼 Stainless Steel |
主要性能參數：Main Performance Parameters:
公稱壓力Nominal Pressure PN（MPa） | 1.0 | 1.6 | 2.5 |
法蘭連接標準Flange Design Standard | GB/T 17241.6-1998 | GB/T9113.1-2000 |
殼體試驗壓力 Shell Testing Pressure（MPa） | 1.5 | 2.4 | 3.75 |
密封試驗壓力 Sealing Testing Pressure（MPa） | 1.1 | 1.76 | 2.75 |
***入口壓力 Max Pressure of Entrance（MPa） | 1.0 | 1.6 | 2.5 |
出口壓力可調范圍 Range Pressure of Exit（MPa） | 0.09~0.8 | 0.10~1.2 | 0.15~1.6 |
工作溫度Working Temperature | 0℃~80℃ |
適用介質Suitable Mediums | 水Water |
主要外形尺寸和連接尺寸：Outline Dimensions & Connection Dimensions:
公稱通徑 Nominal Diameter DN (mm) | L | A | A1 | H | H1 | F |
20 | 180 | 292 | 136 | 342 | 247 | 116 |
25 | 180 | 292 | 136 | 342 | 247 | 116 |
32 | 180 | 292 | 136 | 342 | 247 | 116 |
40 | 240 | 330 | 155 | 395 | 278 | 170 |
50 | 240 | 330 | 155 | 395 | 278 | 170 |
65 | 250 | 350 | 165 | 405 | 298 | 180 |
80 | 285 | 365 | 175 | 430 | 313 | 210 |
100 | 360 | 410 | 195 | 510 | 350 | 275 |
125 | 400 | 455 | 220 | 560 | 365 | 310 |
150 | 455 | 475 | 230 | 585 | 420 | 355 |
200 | 585 | 530 | 255 | 675 | 450 | 460 |
250 | 650 | 623 | 300 | 730 | 470 | 500 |
300 | 800 | 700 | 340 | 760 | 490 | 580 |
350 | 860 | 840 | 415 | 840 | 526 | 650 |
400 | 960 | 880 | 430 | 910 | 570 | 715 |
450 | 970 | 930 | 460 | 1030 | 610 | 780 |
500 | 1075 | 980 | 490 | 1135 | 665 | 830 |
600 | 1230 | 1060 | 530 | 1270 | 725 | 920 |
700 | 1650 | 1130 | 560 | 1460 | 865 | 980 |
800 | 1750 | 1230 | 610 | 1640 | 975 | 1050 |
