产品详情
产品简介：
减压阀一般分为隔膜阀和活塞阀两大类，本公司生产的减压阀口径在DN500mm以下者采用隔膜型，口径在DN600mm以上者采用活塞型，两者之动作原理类似。减压阀主要控制主阀的固定出口压力，主阀出口压力不因进口压力变化而变化，并不因主阀出口流量的变化而改变其出口压力。广泛适用于工业给水、消防供水及生活用水管网系统。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 co
ntrol the fixed export pressure of the head valve; the export pressure of the head valve doesn’t be change with the im
port 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. 主要零部件材质：Material of Main Parts
| 序号Sequence Number | 部件名称Part Name | 材质Material |
| 1 | 阀体Body | 灰铸铁Cast Iron |
| 2 | 轴套Bushing | 不锈钢Stainless Steel |
| 3 | 阀座Seat | 青铜Bronze |
| 5 | 密封Seal | EPDM |
| 6 | 阀板Disc | 灰铸铁Cast Iron |
| 7 | 垫片Flake | EPDM with Nylon |
| 9 | 螺母Bonnet | 灰铸铁Cast Iron |
| 10 | 弹簧Spring | 不锈钢Stainless Steel |
| 11 | 转轴Stem | 不锈钢Stainless Steel |
主要性能参数：Main Performance Parameters:
| 公称压力Nominal Pressure PN（MPa） | 1.0 | 1.6 | 2.5 |
| 法兰连接标准Flange Design Standard | GB/T 17241.6-1998 | GB/T9113.1-2000 |
| 壳体试验压力Shell Testing Pressure（MPa） | 1.5 | 2.4 | 3.75 |
| 密封试验压力Sealing Testing Pressure（MPa） | 1.1 | 1.76 | 2.75 |
| ***入口压力Max Pressure of Entrance（MPa） | 1.0 | 1.6 | 2.5 |
| 出口压力可调范围Range Pressure of Exit（MPa） | 0.09~0.8 | 0.10~1.2 | 0.15~1.6 |
| 工作温度Working Temperature | 0℃~80℃ |
| 适用介质Suitable Mediums | 水Water |
主要外形尺寸和连接尺寸：Outline Dimensions & Co
nnection Dimensions:
| 公称通径Nominal DiameterDN (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 |
