Summary:
2BV series water ring vacuum pumps are suitable for pumping the gases and steam. Its suction pressure can reach 33mbar (abs) (i.e. 97 % vacuum degree). When the liquid ring vacuum pumps work under the condition near the limited vacuum for a long time, it is necessary to couple with the cavitation protection pipe in order to get rid of the screaming and protect the pump. If used as a compressor, its pressure is up to 0.26MPa (absolute pressure). 2BV series water ring vacuum pumps and compressors will replace the SK and 2SK series water ring pumps and the W, WY, WL series reciprocated vacuum pumps completely with their superior performance and advantages.
2BV2-Ex, 2BV6 series water ring vacuum pumps and compressors are mainly used for pumping the explosive gases or work in the flammable and explosive environment. The technical parameter of each type is the same as the corresponding type of the 2BV2 or 2BV5 series products.
2BV series stainless steel pumps can be used under the conditions with higher requirements for the corrosive-proof or the lustration.
According to the working situation, the material of all the parts where the liquid flows (i.e. pump casing, pump cover, port plate and impeller) are made of various stainless steel as bellow：The impeller,disc,Pump cover,Pump bodyMaterial can be used
SUS304（0Cr18Ni9)
SUS316（0Cr17Ni12Mo2）
SUS316L（00Cr17Ni14Mo2）
The material of the shaft is 2Cr13 or 0Cr18Ni12Mo2Ti
The mechanical seals are used the John Crane products and the seals material is optional for FPM or PTFE.
Main features:
.The close-coupled design is convenient to install and can save space.
.The standard seals are all used the John Crane mechanical seals.
.2BV series products have the cavitation protection port. When they work under the condition near the limited vacuum, the cavitation protect port opens (or connects with the separator) to get rid of the screaming to protect the pump.
.Aluminium bronze impeller is of high intensity and wearing well. The erosive-proof capacity of the pump can be improved by using it. If the parts where the liquid flows are made of the stainless steel, the pumps can be used under the more rigorous condition.
.The unique design of the discharge port can protect the pump from the over-pressure to ensure the best efficient performance in the working range of the pump.
.The motors are all adopted Y2 series products. The protection class is IP54 or IP55 (normal is IP44) and the insulation grade is F.
.The bearings are all used the imported products with brand name of NTN or NSK.
.2BV series water ring vacuum pump can achieve flexible sealing parts all of PTFE, which can greatly extend the life of the vacuum pump in harsh conditions
The main application areas of the 2BV series products | |||
Vacuum filtering | (Chemical filtering factories, chemical processing factories, iron ore factory, mining, phosphorite, paper making, poultry processing, coal-selecting factories.) | Reclaim of the steam | （alembic, load and unload station） |
Sucking for the water pump | （waterworks) | ||
Water filling for the condenser | （Water filling for the condenser Power plant） | ||
Vacuum distillation | (milk factory, foodstuff processing, chemical industry, the paper plasma factory） | Drying | （chemical industry, pharmacy manufacture） |
Vacuum disinfection | （hospital, infirmary, the laboratory） | Wood processing /dryness | |
Extrusion and mold | （plastic trade） | Pharmacy/laboratory vacuum | |
Molding | （Plastic, the polyethylene, rubber, tire manufacture etc.） | Solvent reclaiming | |
Soak | （Foodstuff processing, the wooden furniture processing, the textile mill, veneer, telegraph pole etc） | The soil purifying | |
Vacuum pack | |||
Getting rid of the gases from the liquid | （foodstuff processing, the water softening, the bottling factory） | Extraction | |
Rebirth the compressed air | （the paper plasma, iron and steel, automobile, glasses, chemical industry） | Tannery | |
Foodstuff | （foodstuff factory, milk factory） | Canning | |
Performance parameter list of 2BV series water ring vacuum pumps | |
| Curve number ModelSuctionLimited vacuummbar(MPa)Motor powerkWExplosive-proofgrade of motorProtectiongradeof motorPump Speedr.p.mLiquid flow rateL/minNoisedB(A)Weightkgm3/minm3/h60V2BV2 0600.452733mbar(-0.098MPa) 1.1Non-explosiveIP5428402623161V2BV2 0610.86521.528402653570V2BV2 0701.3380328602.5665671V2BV2 0711.83110428804.2726560V2BV2 060-Ex0.45271.1dIIBT4 IP5528402623961V2BV2 061-Ex0.86521.528402654570V2BV2 070-Ex1.3380328602.5666671V2BV2 071-Ex1.83110428804.27277110V2BV5 1102.751654 Non-explosive IP5414406.763103111V2BV5 1113.832305.514408.368117121V2BV5 1214.662807.514401069149131V2BV5 1316.664001114601573205161V2BV5 1618.33500159702074331110V2BV6 1102.751654 dIIBT4 IP5514406.763153111V2BV6 1113.832305.514408.368208121V2BV6 1214.662807.514401069240131V2BV6 1316.664001114601573320161V2BV6 1618.33500159702074446 | |
Notes：
1. The curve is obtained under the situation that the suction medium is saturation air at 20oC, the operating liquid at 15oC, and the discharge pressure is 1013mbar. The performance tolerance is 10%.
2. The flowrate data of the operating liquid indicates the data when the pump connects with the separator that only parts of the liquid are consumed. If the operating liquid doesn’t circulate, the consumed volume is 2 times as the data in the diagram.
Note: The curve is obtained under the situation that the suction medium is saturation air at 20oC, the operating liquid at 15oC, and the discharge pressure is 1013mbar. The performance tolerance is 10%. The right curves in the diagram indicates the data when the pump connects with an ejector.
