闸阀

Bull; Sealing is obtained by sliding, not by compression according to wedging effects.

由滑动而不像楔形闸阀一样通过压缩进行密封。

Sealing is obtained by sliding, not by compression according to wedging effects.

由滑动而不像楔形闸阀一样通过压缩进行密封。

Sealing is obtained by sliding, not by compression according to wedging effects.

通过滑动而不是像楔形闸阀一样通过压缩进行密封。

"Hydraulic safety valve" is widely used in hydraulic power systems and hydraulic equipment of safety devices, pressure devices can be limited, is a special valve, which is different from the conventional valve, the traditional use of mechanical valves metal spring as a driving force, can only be limited to low pressure, encountered more BALANCING VALVES than 10Mpa pressure limit pressure can do to increase the volume of pressurized design, the traditional role of the high-pressure valves and high pressure hydraulic power systems and hydraulic equipment The limit pressure of necessity is bulky and complicated structure, difficult to manufacture large, high production costs; in the course of the fatigue of metal spring parameters change fluctuating pressure limiting Ambassador to regular revision to ensure the normal use.

&气动液压安全阀&是目前广泛应用于液压动力系统和液压设备中的安全装置，也可以作限压装置，是一种特殊的阀门，它不同于传统的阀门，传统阀门用机械金属弹簧为动力，只能限中低压力，遇到超过10Mpa以上的压力限压，闸阀只能做加大体积的增压设计，因此传统阀门作用于高压和超高压的液压动力系统和液压设备的限压时必然体积笨重，结构复杂，制造难度大，产品成本高；在使用过程中金属弹簧的疲劳变化大使限压参数波动大，要经常调整才能保证正常使用。

Subject Matter and Scope This standard specifies the flange and welded steel gate valves of the structure type, technology requirements.

主题内容与适用范围本标准规定了法兰和对焊连接钢制闸阀的结构型式、技术要求等。

Subject Matter and Scope This standard specifies the flange and welded steel gate valves of the structure type, technology requirements.

正题内容与适用范围本标准划定了法兰和对于焊连接钢制闸阀的结构型式、技术要求等。

Flange steel high-pressure valve connected to Nominal pressure PN10.0 ~ 25.0Mpa, operating temperature of -29 ~ 600 ℃ oil, chemical, fire station, and other conditions of the road, cutting off access or medium.

高压法兰连接钢制闸阀适用于公称压力PN10.0～25.0Mpa，工作温度—29～600℃的石油、化工、火力电站等各种工况的管路上，切断或接通介质。

Throttling is not recommended because partially open gate valves exhibit flow characteristics not conducive to accurate and consistent flow control.

不建议用于节流应用，因为部分开启的闸阀所表现的流量特性并不利于精确和一致的流量控制。

The flow through gate valves can be from either end.

流体可以从闸阀的任一个端口流入。

7 Gate valve according to Table 6, the main component material selection, supply and demand any special requirements by mutual agreement in order the contract.

4.15.7闸阀主要零件材料可按表6选取，如有特殊要求经供需双方协商在订货合同中注明。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。