Two Stage Rotary Vane Vacuum Pump

Product overview

This type of pump is double stage high speed oil sealed rotary vane vacuum pump. It is equipped with gas-ballast valve. Its function is to fill the exhaust space with certain amount of air ,when the valve is open ,so to reduce the proportion of the partial pressure of vapor in the total discharge pressure .As the partial pressure of vapor is lower than that of the saturated vapor pressure corresponding to the working temperature of the pump, vapor can be discharged from the pump with the filled air in order to avoid condensation of vapor in the pump oil and to prevent oil from emulsifying by the condensed vapor so as to prolong the useful lift of oil .However the ultimate vacuum of the pump shall drop ,and the temperature of the pump shall rise when the gas-ballast valve is open.

This type pump has the outstanding achievements of small size, less weigh ,quiet operation  and easy to start .Besides devices to prevent from sucking back of oil and leakage of oil from axle sealing to contaminate environment are also provided.

Field of Application
 
1. The pump is one of the basic equipments to exhaust a sealed vessel. It can be used either independently as main and can also be served as forepump for booster pump diffusion pump and molecular pump or as holding pump for a vacuum system and as a pre-pumping for different kinds of the pumps. So that is can be applied in electro-vacuum industries, vacuum flask manufacturing, vacuum welding and as an accessory to those fine gauges or meters where vacuum is required .It is more suitable for laboratory use because of its small size ,less weight and quiet operation .

2.The pump is allowed to work continuously for many hours at a stretch under atmospheric temperature of 5ºC-40ºC and intake pressure below 1230pa.While the pumped gas containing moisture of a relative humidity of more than 90% gas-ballast valve should be open.

3. Whit the inlet port widely opened to atmosphere the pump is not allowed to work more than one minute.

4.The pump is not suitable for pumping over-oxidized, poison, explosive and corrosive gas as well as gases which react chemically with the pump oil contain particles of dust.

Company overview

1988:established headquarter in Zhejiang, mainly produce vacuum pump SK series for medicine industry

1997:established a sales branch in Shanghai

1998:research and develop SK-A,SK-D series for plastic industry

2007:establish foreign trade department and start foreign trade business

 

Main products:

Liquid ring vacuum pump:SK,SK-A,SK-D,2SK,2SK-B,2BEA,etc

Centrigugal pump: IZ(BL),etc

Rotary vane vacuum pump:2X,2XZ-B,VRD,XD,etc 

Certificate:  

CE;ISO9001:2000; ISO14001:2004;

  Product overview

This type of pump is double stage high speed oil sealed rotary vane vacuum pump. It is equipped with gas-ballast valve. Its function is to fill the exhaust space with certain amount of air ,when the valve is open ,so to reduce the proportion of the partial pressure of vapor in the total discharge pressure .As the partial pressure of vapor is lower than that of the saturated vapor pressure corresponding to the working temperature of the pump, vapor can be discharged from the pump with the filled air in order to avoid condensation of vapor in the pump oil and to prevent oil from emulsifying by the condensed vapor so as to prolong the useful lift of oil .However the ultimate vacuum of the pump shall drop ,and the temperature of the pump shall rise when the gas-ballast valve is open.

This type pump has the outstanding achievements of small size, less weigh ,quiet operation  and easy to start .Besides devices to prevent from sucking back of oil and leakage of oil from axle sealing to contaminate environment are also provided.

Field of Application
 
1. The pump is one of the basic equipments to exhaust a sealed vessel. It can be used either independently as main and can also be served as forepump for booster pump diffusion pump and molecular pump or as holding pump for a vacuum system and as a pre-pumping for different kinds of the pumps. So that is can be applied in electro-vacuum industries, vacuum flask manufacturing, vacuum welding and as an accessory to those fine gauges or meters where vacuum is required .It is more suitable for laboratory use because of its small size ,less weight and quiet operation .

2.The pump is allowed to work continuously for many hours at a stretch under atmospheric temperature of 5ºC-40ºC and intake pressure below 1230pa.While the pumped gas containing moisture of a relative humidity of more than 90% gas-ballast valve should be open.

3. Whit the inlet port widely opened to atmosphere the pump is not allowed to work more than one minute.

4.The pump is not suitable for pumping over-oxidized, poison, explosive and corrosive gas as well as gases which react chemically with the pump oil contain particles of dust.

Company overview

1988:established headquarter in Zhejiang, mainly produce vacuum pump SK series for medicine industry

1997:established a sales branch in Shanghai

1998:research and develop SK-A,SK-D series for plastic industry

2007:establish foreign trade department and start foreign trade business

 

Main products:

Liquid ring vacuum pump:SK,SK-A,SK-D,2SK,2SK-B,2BEA,etc

Centrigugal pump: IZ(BL),etc

Rotary vane vacuum pump:2X,2XZ-B,VRD,XD,etc 

Certificate:  

CE;ISO9001:2000; ISO14001:2004;

 

M-BUS metering data converter is with M-BUS and USB interface, which is collected with M-BUS meters and meter reading primary station separately. The communication with M-BUS meters is based on tree collection. This data concentrator is single non-communication converter, supporting data transmission and sending reading orders through USB collection. The quantity to collect with the meters(Meters Data Transceiver) is 60pcs and 360pcs.

Function of the M-Bus Converter:

Working voltage:AC220V

Power:10W

Interface: up:USB

          down:M-BUS

Quantity:≤60pcs,360pcs

VBUS:high level 39V,low level 23V

BUS load current:≤200mA

Path protection:over current,short cut protection,reset automatically when failure deleted; need man resetting when long-time over current

Status indicator: power; receiving and sending; over load warning

wiring:0.75mm²~2mm²;wire resistance≤50Ω

transmission :1000meters

working environment:temperature:-30℃~80℃

          humidity:≤90

M-Bus Converter

M-Bus Converter,Wireless M-Bus Converter,Wireless Meter Reader,M-Bus Connector,Data Concentrator,Metering Data Converter,Meters Data Transceiver

Berggruen Technology Co.,Ltd , http://www.meter-technology.com