五月天婷亚洲天综合网手机_日本欧洲亚洲一区在线观看_人妻少妇精品视频三区_亚洲AV永久无码精品无码绿巨人

Gate Valve

Size:DN15~DN800
-Working temperature:-15~300℃
-Working pressure:PN10~PN100
-Body:Ductile iron、Cast Steel、SS304、SS316、Duplex steel2205、Duplex steel2507
-Trim:Carbon steel、SS304、SS316、Duplex steel2205、Duplex steel2507
-Seat:hard metal seal
-Medium:water、steam、gas、oil

Ordering hotline:021-54150349

Immediately consult
  • Product introduction
  • Product parameters
The opening and closing part of the gate valve is the gate. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and closed, and can not be adjusted and throttled. The gate has two sealing surfaces. The gate plate of the gate valve moves in a straight line with the stem, which is called the Rising stem gate valve. When opening the valve, once the gate lifting height is equal to 1:1 times the valve diameter, the flow passage is completely open, this position can’t be monitored when the valve running. In practical use, the vertex of the valve stem is used as the sign, that is, the position of the valve stem that is not moving is used as its full open position. In order to consider the locking phenomenon of temperature change, the valve is usually opened to the vertex position and reversed to 1/2-1 turn as the position of the fully open valve. Therefore, the full open position of the valve is determined by the position of the gate, that is, the stroke. Some gate valves, stem nuts set on the gate plate, hand wheel rotation to drive the rotation of the stem, and make the gate lift, this valve is called non-rising stem gate valve.
1. Body
2. Gate
3. Stem
7.  Bonnet
8.  Packing
10. Packing gland


南溪县| 刚察县| 崇州市| 修水县| 错那县| 乳山市| 贵南县| 英德市| 新平| 蒙阴县| 峨眉山市| 象山县| 延边| 昌平区| 铁力市| 新民市| 泽州县| 夏邑县| 东方市| 洪雅县| 安仁县| 蛟河市| 铜山县| 噶尔县| 郓城县| 霞浦县| 新蔡县| 公主岭市| 蓝山县| 思南县| 治多县| 故城县| 吉安县| 滦平县| 敦煌市| 乐安县| 屏南县| 定西市| 遂宁市| 井冈山市| 含山县|