Avoid valve staggering, wrong closing, missing opening and missing closing. The operator shall clearly understand the function of each valve and its position ...

The bolt is broken in the screw hole, which is troublesome during disassembly. Several methods for unscrewing bolts File square tenon screwing out method ...

Avoid incorrectly opening, closing, leaking, and closing the valve. The operator must clearly understand the role of each valve and its position in the process ...

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

If you want to improve the accuracy of the  vacuum valve, you must perform an error analysis. Errors can be generally divided into negligent errors, slowly ...

Causes of valve body leakage of vacuum flapper valve and its treatment The valve body has sand holes or cracks; Crack during repair welding of valve ...

To select the model and specification of the valve correctly, we need to know the preparation method of the vacuum valve model; the preparation method of the ...

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. ...

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. ...