香蕉亚洲国产精品一区,自拍偷拍视频亚洲,麻豆传煤免费网站网址,3d动漫精品一区二区免费,亚洲精品无码新片,国产精品刺激久久,亚洲AV无码久久综合网,99久久免费精品色老大,日韩毛片在线一区二区毛片,亚洲国产美女精品久久久

Working principle of pressure valve

Pressure valve is a device used in hydraulic system to control and regulate liquid flow pressure.

Six reasons for valve sealing surface damage

Because the seal plays a role in cutting and connecting, adjusting and distributing, separating and mixing media on the valve channel, the sealing surface is…

Build green and low-carbon oil fields to be the "pillar" of green development

Reed ponds, rice fields, oil Wells criss-cross, Liaohe Oilfield Huanxiling oil production plant is located in the "wetland capital" reputation of P…

Key trends affecting the industrial valve market

The increasing popularity of iot devices is driving the demand for industrial valvesIntegrated iot sensors in industrial valves enable real-time monitoring o…

Method of preventing the regulator from getting stuck or blocked frequently

01, cleaning methodThe welding slag, rust, and residue in the pipeline cause blockage or jam in the throttle orifice, guide part, and balance hole of the low…

The cumulative gas injection volume of Huabei oilfield reservoir group exceeds 15 billion cubic meters

On July 31, the cumulative gas injection volume of the gas storage group of the North China oilfield exceeded 15 billion cubic meters, demonstrating the role…

Valve daily maintenance guide

What is the difference between the use of butterfly valve and gate valve?

According to the role and use of gate valve and butterfly valve, the flow resistance of gate valve is small, and the sealing performance is good,

Rooted deep in the desert let green and oil dance

A few days ago, the research group composed of the "high-quality development look at energy"

How much do you know about the 9 misunderstandings of valve installation?

Do you know the 9 misunderstandings of valve installation? Lets take a look!