Latest Articles

Plastic flange ball valve technical information

Ball valve is used for opening and closing the ball with a circular through hole, the ball core with the valve stem around the center line rotation in order to achieve the purpose of opening and closing the valve. 1. Body material should be made of PPH, RPP, PE, PVDF, CPVC, UPVC raw materials, seali

Read More

Valve purchase knowledge Daquan

I. Press the media parameters to adjust the selection of valves: In the production process, in order to make the media pressure, flow and other parameters in line with the requirements of the process, the need to install the adjustment mechanism to adjust the above parameters. The main working princ

Read More

Corrosion-resistant centrifugal pump selection, corrosion-resistant centrifugal pump how to choose

First of all let us understand what is corrosion: Corrosion can be divided into two categories of wet corrosion and dry corrosion. Wet etching refers to the corrosion of metallic materials in the presence of water while dry etching refers to corrosion in dry gases in the absence of liquid water. As

Read More

Mass spectrometry vacuum pump maintenance methods

Pre- pump maintenance 1. Safety information pump must be properly trained technicians to maintain; Confirm the technician is very familiar with the product of pump oil and system; Pump must be stopped before maintenance, down to a safe temperature; disconnect the pump and other components and the

Read More

Compressed air system valve selection

Butterfly Valves: These valves shall be lugs or international pipe standard IPS tubular connection port body and shall be manufactured in accordance with the American Society for Valve and Fitting Manufacturers Standards Association MSS-SP67; bore DN50 to DN300 rated working pressure 200 psi non-imp

Read More

Diaphragm pump type selection and operation matters

Diaphragm pump, also known as the control pump, is the main type of actuator. It uses a power operation to change fluid flow by accepting the control signal from the control unit. Diaphragm pump generally by the implementing agencies and valves. The use of compressed air as the power source, for a

Read More

Cavitation of centrifugal pumps

Liquid at a certain temperature, reduce the pressure to the temperature of the vaporization pressure, the liquid will produce bubbles. The phenomenon of bubbles is called cavitation. Cavitation bubble generated when flowing to high pressure Department, the volume decreases so as to burst. This pheno

Read More

Pulp pump in the structure and equipment requirements

The requirements for the construction and installation of the pulp pump are listed below. 1. The impeller is not blocked, generally made of open impeller, KCB gear pump cleaning is also easy, however, as long as the impeller flow channel wide enough spacious, so closed impeller is also possible. 2.

Read More

Solenoid valve failure how to rule out

First, the solenoid valve does not work after power Check the power supply connection is not good → re-wiring and connector connection Check the power supply voltage is within the scope of work → → tune the normal range of the coil is not desoldering → re-welding coil sho

Read More

Liquid pump to extend the use of effective measures

Submerged pump a wide range of transport medium temperature and working pressure of different, depending on the nature of the transmission medium can be divided into molten salt submerged pump, sulfuric acid submerged pump, acid submerged pump, liquid submerged pump, sulfur Submerged pump, submerged

Read More

Centrifugal pump cavitation causes

If the centrifugal pump in the work of the noise and vibration, accompanied by reduced flow, lift and efficiency, and sometimes can not even work, when the maintenance of the pump, you can often find the blade inlet side of the front cover and blade inlet edge Near the pitted or honeycomb damage. In

Read More

Control valve features introduction and structural analysis

Control valve features Introduction and structural analysis Control valves (controlvalve) used to regulate the flow of media, pressure and liquid level. According to adjust the position of the signal, the valve automatically control the opening, so as to achieve the media flow, pressure and liquid l

Read More
1 2 3 4 5 6 7 8 9 10