Replaceable stem seal sleeve with containing pressure;
可带压更换的阀杆密封套
It has two stem sealing: one is stuffing box and another is toroidal sealing ring( O-ring).
本阀阀杆密封分为两种形式：一为填料密封；一为O型密封环密封。
Backseat– machined bonnet stem bushing provides back-up stem seal.
(10) 后座-经过精密加工的阀盖阀杆衬套实现后座阀杆密封。
Backseat– machined bonnet backseat provides back-up stem seal.
(9) 后座-经过精密加工的阀盖阀杆衬套实现后座阀杆密封。
Backseat ? machined bonnet stem bushing provides back-up stem seal.
后座-经过精密加工的阀盖阀杆衬套实现后座阀杆密封。
Stem bearing to assure concentric stem rotation, allowing stem packing to provide maximum sealing effectiveness.
阀杆轴承保证同轴阀杆的旋转，使得阀杆填料具有最大的密封效果。
This prevents stem from scoring and galling and provides longer disc seal and body life.
这种结构避免阀杆刮伤和磨损，延长阀瓣密封和阀体的使用寿命。
bellows sealed gate valve
波纹管密封的闸板阀
bellows seal bonnet
波纹管密封型上阀盖
Regularly check whether actions of inhalation, exhalation discs are flexible, and the sealing contact surface of leader and disc is damaged, if so, should be replaced immediately.
定期检查吸入、呼出阀盘动作是否灵活，导杆及阀盘接触密封面有无损坏，如有损坏应立即更换。
The Seal Structure Improvement of Multi-Seal Fuel Gas Separates
多密封燃气隔断闸阀密封结构的改进
Remove check valve and valve seal from booster.
从倍力器上卸去逆止阀和阀门密封。
Requirement: Valve must be tight against reverse flow.
要求：这种阀门对于回流必须密封紧密。
Positive mechanical thrust drives plug into body seats to ensure tight bi-directional line seal.
积极的机械推力驱动阀塞进入阀体阀座馁，确保紧密双向管路密封。
Fluid control one-way valve used cone disc, sealed a good performance.
液控单向阀采用锥形阀芯，因此密封性能好。
An O-ring seals the relief valve body to the main housing.
用一个O形环密封安全阀阀体与主外壳。
Temperature range limited by seat material
温度范围受到阀座密封材料的限制
Seat hardfaced with SS410 and seal welded.
配置410不锈钢和密封焊接的阀座硬面。
Seat ring is seal welded to eliminate leak path.
阀座环通过密封焊接，消除泄漏通道。