The circular ring joint bonnet seal has proven to be the best bolted high pressure bonnet joint available.
这种圆形环状连接阀盖密封经过实践证明是目前最好的螺栓高压阀盖连接。
bellows seal bonnet
波纹管密封型上阀盖
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。
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。
To coat, pack, or seal with lute.
用封泥盖、包或密封
The valve bonnet may now be removed. There may be slight leakage, as the metal-to-metal backseating does not provide a drip-tight seal.
现在可以拆卸阀门的阀盖。当金属-对-金属后座无法提供无滴漏密封时，可能会有点泄漏。
bellows sealed gate valve
波纹管密封的闸板阀
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。
labyrinth gland
迂回[曲折, 迷宫式]密封盖
The valve bonnet may now be removed. There may be slight leakage as the backseat does not provide a drip-tight seal.
现在可以拆卸阀盖。如果后座无法提供无滴漏密封，则会有轻微的泄漏。
The valve bonnet may now be removed. There may be a slight leakage, as the metal-to-metal backseating does not provide a drip-tight seal.
现在可以拆卸阀盖。如果金属-对-金属后座没有实现无滴漏密封，则可能会有轻微的泄漏。
Other cars use a sealed cap and have separate vacuum-and pressure-relief valves.
另一种类型的汽车使用密封式油箱盖，并带有一个独立的真空--压力减压阀。
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。