介绍了大口径止回阀阀体密封面的加工方法，分析了刀具几何参数的选择与确定。
This paper introduces the manufacture of sealing surface (valve body) about great size check valve and analyzes the choices and the decisions about geometrical parameters of tools.
阀瓣与阀体密封面经过精密研磨，组装完毕经过100%试压，全部达到零泄漏。
Valve with the valve sealing surface through precision grinding, assembly, after 100% completion of pressure test, all to achieve zero leakage.
汇总了塑料阀门产品要求的阀座密封试验、阀体密封试验、阀体强度试验、阀门长期试验、疲劳强度试验和操作扭矩的规定和方法。
The regulations and methods for valve base seal test, valve seal test, valve strength test, long term valve test, fatigue test and operating torque test were summed up in this article.
汇总了塑料阀门产品所需性能要求的阀座密封试验、阀体密封试验、阀体强度试验、阀门长期试验、疲劳强度试验和操作扭矩的规定。
The specifications for seat sealing test, body sealing test, body strength test, valve long term test, fatigue strength test and operation torque of plastic valves were summarized.
V47温度调节阀体积小，重量轻，安装简便，使用寿命长，阀体密封采用V型环高温密封组件，可防止阀杆过紧抱死或漏气的可能性。
V47 temperature actuated valve features light weight, small volume and long life. The valve body is made of high temperature seal components for avoiding valve body Hugging tight or leak.
采用熔化极惰性气体保护堆焊方式，在阀体密封面上均匀地熔敷镍基合金的耐磨焊层，从而达到改善阀体密封面的表面质量，显著延长阀体寿命的目的。
Using the MIG surfacing method, Ni-alloy was deposited evenly on the sealing face of valve to enhance the performance and prolong the life of the valve.
按橡胶密封圈使用性能，根据具体情况定期对阀体的密封圈进行更换，以保证阀门的密封性能。
Exchange the sealing ring of the valve body according to the working condition of rubber sealing ring in order to ensure the sealing performance.
警告：用于阀体法兰上的隔膜的密封面在工厂受到特殊的处理，以强化聚四氟乙烯隔膜的密封性能。
Caution: the sealing surface for the diaphragm on the top flange of the valve body receives special factory preparation to enhance sealing with PTFE diaphragms.
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。
Positive mechanical thrust drives plug into body seats to ensure tight bi-directional line seal.
用一个O形环密封安全阀阀体与主外壳。
该蝶阀采用阀体同质材料加工成密封圈，采用电或气传动。
The butterfly valve using the same materials as seals, the use of electric or gas transmission.
密封面积相当于阀体长度的95%。
根据介质性能及使用期，应经常检查阀体顶部四氟密封圈和孔板部的四氟薄片。
According to media performance and the use of period and should always check the valve orifice at the top of the Ministry of PTFE seals and PTFE sheet.
平底直通式设计，阀体避免杂物堆积，蝶阀保证长期使用不影响阀门密封性能。
Flat bottom direct design prevents sundries from accumulating, which guarantees valve gate sealing performance for long time use.
其密封结构是通过闸板关闭下移直到闸板底部斜面与阀体下锲块压紧使得闸板贴紧阀座密封面，从而达到了密封效果。
The seal structure is that gate moves down till the bottom of the ramp compress carve blocks of the body to make gate compresses the sealing of the seat to achieve sealing effect.
阀体的两个部分应该采用钻石形交叉橡胶垫圈通过阀体的卡箍永久性锁定密封起来。
The two halves shall be sealed by diamond shaped cross section rubber gasket permanently locked by a groove in the valve body.
适用于直通法兰式阀门的密封压力和阀体强度压力性能试验。
Is suitable for through flange valve sealing pressure and valve body intensity pressure performance test.
安装时请注意阀体上标注介质流向，两法兰连接时必需加密封垫片，然后均匀锁紧螺栓。
When installation, note flow direction of media of valve body. When connecting two flanges, add sealing mat. Then lock the bolt evenly.
受压的密封环紧紧贴住旋塞和阀体，确保密封的严密。
Sealing tightness is ensured by the compression of the sealing rings against the piston and valve body.
这种止回阀应该是模块化的，并且应该采用一个O形环密封在主阀体上。
The check valves shall be modular and shall seal to the main valve body by the use of an O-ring.
密封的弹性使得阀门阀体和阀瓣能够接触或扩张，避免了由于温度波动而产生堵塞的危险。
The resiliency of the seal allows the valve body and disc to contract or expand, without the risk of jamming due to temperature fluctuations.
阀体与连接法兰的密封为体盖密封。
标准配置为机加工黄铜结构，镀铬镍阀体，乙丙橡胶止回阀瓣总成和丁钠橡胶密封，不锈钢弹簧和压力板。
Machined brass construction, chrome nickel plated body, EPR rubber check disc assemblies and Buna 'n' seals, stainless steel springs and pressure plates are standard.
这样即满足了保护密封圈的要求又不对汽轮机阀体有伤害。
This satisfies the requirement of protecting seal spring and also never puts damage to valve on steam turbine.
更换阀体材质和密封圈复合夹层可适用不同介质。
Different body materials and seal ring compound folder layer are suitable for different medium.
底部加入半圆密封筋，在关闭状态下，可增加闸板与阀体的咬合度，使得密封性更好。
In the bottom increase "half moon" ring of rubber, under the close status, can increase wedge and body's contact face, make better airproof capability.
安装时请注意阀体上标注介质流向，两法兰连接时必需加密封垫片，然后均匀锁紧螺栓。
Pay attention to the direction of medium in valve body. Add seal cushion between two flanges connection and screw down bolt.
倒流的流体通过倒流的流体压力将止回关闭装置与阀体紧密密封，从而实现阻止倒流的“止回”功能。
Reversed flow is stopped or held in "check" by fluid backflow pressure which seats the closure device against the valve body.
压力界限通过密封-楔板，阀体-阀帽连接和动负载填料腔来保证。
The pressure boundary is secured by a seal-welded body-bonnet joint and a live-loaded packing chamber.
压力界限通过密封-楔板，阀体-阀帽连接和动负载填料腔来保证。
The pressure boundary is secured by a seal-welded body-bonnet joint and a live-loaded packing chamber.
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