本文件旨在提供用于空气钻井、油气钻井作业和地热钻井作业的安全且功能可互换的旋转控制装置（RCD）。技术内容提供了设计、性能、材料、测试和检查、焊接、标记、搬运、储存和运输的要求。本规范不适用于RCD的现场使用或现场测试。关键部件是指具有本文件规定要求的零件。

This document is formulated to provide for the availability of safe and functionally interchangeable rotating control devices (RCDs) utilized in air drilling, drilling operations for oil and gas, and in geothermal drilling operations.Technical content provides requirements for design, performance, materials, tests and inspection, welding, marking, handling, storing, and shipping. This specification does not apply to field use or field testing of RCDs.Critical components are those parts having requirements specified in this document.