Petroleum drilling and production equipment—Drill string non-return valve
全国石油钻采设备和工具标准化技术委员会(SAC/TC 96)
本标准规定了石油和天然气工业用钻具止回阀（缩略语NRV）设备的结构型式、要求、材料、质量控制和检测要求。本标准适用于组成NRV设备的钻具止回阀、短节、定位接头、泄压接头及其他所有可能影响到NRV设备性能或互换性的相关部件的设计、制造和检验，不适用于NRV出厂后和使用中的维修和检验。
This standard is the original Chinese electronic standard.
After you successfully purchase, we will send the electronic version of this standard to your email address.
If you have successfully purchased, please go to the plug-in category of the store and download the free plug-in installation package.
If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.
