上海帕基诺泵阀制造有限公司 
旋启式止回阀是控制管道内介质单向流向的阀门，用来防止管路中的介质倒流。适用各种管路的各种压力、温度和介质下控制接通或截断管路介质的启闭装置；依靠阀瓣自重和流体压差实现自动阻止流体倒流。适用介质为：水、油品、蒸汽等
1、特点The characteristics of
旋启式止回阀是控制管道内介质单向流向的阀门，用来防止管路中的介质倒流。适用各种管路的各种压力、温度和介质下控制接通或截断管路介质的启闭装置；依靠阀瓣自重和流体压差实现自动阻止流体倒流。适用介质为：水、油品、蒸汽等.Swing check valve, one-way flow of media is to control the pipe valve is used to prevent the backflow medium pipeline. Apply to all sorts of all sorts of pipeline pressure, temperature and medium under control through or truncation pipeline medium lifting device; Rely on the disc self-respect and fluid pressure differential automatically prevent fluid backflow. Applicable medium: water, oil, steam, etc.
2、主要参数The main parameters
| 型号model： PH44H/W | 工作压力（MPa）：1.6~10.0 | 适用温度（℃）：≤200 | |||
适用介质Applicable medium | 水、蒸汽、油品 | 弱腐蚀性介质 | |||
材料material | 阀体、阀盖 | 碳素钢铸钢 | 铬镍系不锈钢Chromium nickel stainless steel | ||
阀瓣 | 碳素钢铸钢 | 铬镍系不锈钢 | |||
密封圈Sealing ring | 碳素钢铸钢或不锈钢Carbon steel casting and Stainless steel | ||||
3、主要连接尺寸The size and weight (单位mm)
口径 | PN1.6/2.5MPa | PN4.0MPa | PN6.4/10.0MPa | |||||
L | H | L | H | L | H | |||
系列1 | 系列2 | 系列1 | 系列2 | |||||
DN40 | 200 | 200 | 130 | 200 | 200 | 130 | 260 | 160 |
DN50 | 230 | 230 | 135 | 230 | 230 | 135 | 300 | 170 |
DN65 | 290 | 290 | 145 | 290 | 290 | 145 | 340 | 180 |
DN80 | 310 | 310 | 175 | 310 | 310 | 175 | 380 | 245 |
DN100 | 350 | 350 | 200 | 350 | 350 | 200 | 430 | 290 |
DN125 | 400 | 400 | 255 | 400 | 400 | 255 | 500 | 320 |
DN150 | 480 | 480 | 320 | 480 | 480 | 320 | 550 | 360 |
DN200 | 495 | 550 | 380 | 533 | 550 | 380 | 650 | 430 |
DN250 | 622 | 650 | 440 | 622 | 650 | 440 | 775 | 505 |
DN300 | 698 | 750 | 480 | 711 | 750 | 520 | 900 | 555 |
DN350 | 787 | 850 | 530 | 838 | 850 | 540 | 1025 | 595 |
DN400 | 864 | 950 | 560 | 864 | 950 | 590 | 1150 | 680 |
DN450 | 978 | 1050 | 620 | 978 | 1050 | 650 | 1275 | 780 |
DN500 | 978 | 1150 | 655 | 978 | 1150 | 720 | 1400 | 970 |
4、订货须知Ordering instructions
a、阀门型号the valve figure number；b、阀体材质body material； c、介质media name; d、温度temperature。
