According to the requirements of use, the type of pressure reducing valve and the accuracy of pressure regulation are selected, and then the diameter is selected according to the required maximum output flow rate. When determining the source pressure...

The calibrator is a high precision pressure reducing valve used primarily for pressure setting. There are currently two pressure gauge calibrators: the gas source pressures are 0.14 MPa and 0.35 MPa, respectively, and the output pressure ranges are 0...

When the output pressure of the pressure reducing valve is high or the diameter is large, the pressure is directly adjusted by the pressure regulating spring, the spring stiffness is inevitably too large, and when the flow rate changes, the output pr...

Large-diameter globe valves are generally used in boiler outlets, main sub-cylinders, steam mains, etc. These locations have the following problems: 1.The general pressure difference of the boiler outlet is relatively large, so the steam flow rate is...

Diaphragm valve characteristics Diaphragm valve is a special form of shut-off valve. Compared with other valves, it has the following characteristics: 1. The elastically sealed opening and closing parts ensure that there is no internal leakage; 2．The...

B2F double flange type limit expansion joint is suitable for connecting both sides with flange. AF type flange loose end expansion joint is a loose joint connecting pipe consisting of body, seal ring and pressing member. Read More

What is the classification of the pump and valve connection expansion joint model? There are many types of pump and valve connection expansion joints, which are national standard products, which are mainly divided into the following types. The expans...

The processing principle of PVC resin and the composition of ingredients The composition and function of materials Mainly PVC resins, heat stabilizers, plasticizers, lubricants, modifiers, fillers, colorants, and other processing aids. When there a...

The expansion joint is mainly composed of a body, a telescopic sleeve, a gland, a sealing ring and a bolt. The expansion body, telescopic sleeve and gland are made of 16MnR, and the sealing ring is sealed with nitrile rubber, which has good water tig...

When the flexible rubber joint is used in the water pump inlet and outlet, it should be located on the side of the near water pump. A metal reducer joint should be installed between the pump and the pump, and it should be installed at the large diame...

1. The appropriate model must be selected according to the working pressure, connection mode, medium and compensation amount of the pipeline, and the number is selected according to the noise reduction displacement requirement. 2. When the pipeline g...

When the glue is used, insert the inner wall of the pipe socket and the outer wall of the pipe into the part, wipe it with a dry cloth, and apply a proper amount of glue to both ends. When some of the solvent is volatilized and the adhesiveness is en...