Shanghai vacuum check valve manufacture

  Shanghai vacuum check valve manufacturer jiabainong's er generation vacuum check valve nh7k2f has introduced foreign advanced technology
After long-term test of Zisheng valve, compared with the Yi generation vacuum check valve, it has the characteristics of small reaction time, zero opening resistance and significant reduction of noise
It is mainly used in vacuum pumps, vacuum pumping systems and pipelines with negative pressure
Because the valve is sealed with tetrafluoro seal, the reliability of the seal is increased and the function of silencing is increased
The valve body is made of stainless steel and carbon steel
Please clean the sealing surface and the inner cavity of the valve before installation
Please indicate when ordering, according to the packing method: vertical packing Sleeping clothes Flip
 
1、 Parameters of vacuum check valve: http://www
shjbn
com/pv201003111
htm  ;
  Material: cast steel, stainless steel
Applicable medium: vacuum, etc
Nominal diameter: dn25-300mm
 
2、 Overview:
  Vacuum check valve, also known as vacuum choke valve, vacuum check valve and vacuum check valve, is installed at the air extraction port of vacuum pump to prevent the working fluid and air of vacuum pump from flowing back to the vacuum system in case of pump shutdown or accidental power failure, resulting in the pollution of vacuum system by working fluid and the deterioration of vacuum degree
It is a conventional product of vacuum pump and vacuum system
 
3、 Purpose:
  The vacuum check valve is opened or closed by medium flow and force to prevent medium backflow
The valve is called vacuum check valve
Vacuum check valve is an automatic valve, which is mainly used on the pipeline with one-way flow of medium
The medium is only allowed to flow in one direction to prevent accidents
To prevent fluid backflow