tightness test pressure

The design and implementation of the system can complete the test of the instrumentation and equipment performance, status and air tightness of the pitot-static pressure system with a high degree of automation, testing speed and high-precision, easy-to-operate features.

该系统的设计实现可以完成全静压系统的仪表和设备的工作性能、状态及系统气密性的检查，具有自动化程度高、检测速度快和高精度、易操作的特点。

Dry air tightness test methods mainly include direct pressuredrop method and internal pressure differential method.

干式气密性检测方法主要有直接压降法和内压压差法。

Research of the Conversion Relations between Permeation Amount for Closed Water and Decompression Amount for Closed Air for the Air tightness Test of High Pressure Vessel

高压容器气密性检测的闭水渗透量与闭气降压量换算关系的研究

Be responsible for the inspection of piping tightness test , pressure test, strength test, zincification, acid cleaning.

负责管系的密性 、 试压 、 强度试验 、 镀锌 、 酸洗的检验、报验.

In recent years part of domestic oil and gas fields proposed the requirements on gas tightness test for individual high-pressure shaftmouth device.

近年来我国部分油气田因开采情况的变化，相继对各高压上井装置提出了进行气密封试验的要求。