Valve body, bonnet and stem: aluminum alloy, carbon steel or stainless steel Seals: NBR, Viton, bellows (shaft seal). Product features Standardized, ...

The pressure is lower than atmospheric pressure, and the pressure drop on the disc must not exceed 1 kgf/cm2. The operating temperature of the medium depends ...

The frequent operation of the valve can not only prevent impurities from accumulating on the surface of the valve seat or valve ball, but also avoid excessive ...

Safety instructions The valve is suitable for working medium with air or low corrosive gas. The operating pressure range is 2 × 105Pa ~ 1.3 × 10-6Pa. ...

When the vacuum valve is dismantled, use steel characters on the valve and the flange connected to the valve, mark the maintenance number, and record the ...

High vacuum baffle valve is gradually invading the market of other valves since its inception The working principle of high vacuum baffle valve is that the ...

The theoretical basis of metal bellows design is plate and shell theory, material mechanics, and computational mathematics. There are many parameters for the ...

Stainless steel corrugated pipes usually use 304 stainless steel or 316 stainless steel as raw materials. They have good softness, corrosion resistance, high ...

The raw material of the plastic corrugated pipe is HDPE, and it will not be corroded by some acids and alkalis. Of course, it is not corrosive by itself, and ...

The vacuum bellows refers to a tubular elastic sensor connected by a foldable wrinkle sheet in the direction of folding and expanding. Vacuum bellows are ...

1. The valve body has trachoma or cracks; 2. The valve body is cracked during repair welding deal with: 1. Polish the suspected cracks, and etch with 4% ...

Stainless steel bellows are costly and the price is undoubtedly high. In order to reduce costs and improve benefits, some people in the process of using ...