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2BV series Water Ring Pumps and Compressors
2BV2 water ring vacuum pump/compressor
2BV5 water ring vacuum pump/compressor
2BV2 water ring vacuum pump/compressor (pump's material is stainless steel)
2BV6 water ring vacuum pump/compressor
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 per cent vacuum degree). If to use the transformer oil
as the operating liquid, these pumps are called oil ring vacuum pump,
and their suction pressure can reach 6.7mbar (abs) (i.e. 99 per cent
vacuum degree). so the oil ring vacuum pumps can replace the reciprocated
vacuum pumps completely. When the liquid ring vacuum pumps are working
in 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.
When the compressors work, the max pressure is 0.26MPa(abs). And the
higher of discharge pressure, the larger of the compressors' power.
So it is necessary to provide the data of the discharge pressure for
choosing the proper motor power by the customers.
2BV series water ring vacuum pumps and compressors will replace the
SK
and 2SK
series water ring pumps, or the W, WY, WL series reciprocated
vacuum pumps completely with their superior performance and many merits.
2BV6 water ring vacuum pump/compressor (pump's material is stainless steel)
2BV2-Ex、2BV6 series water ring vacuum pumps
and compressors are mainly used for pumping the explosive gases or working
in the flammable and explosive environment. Every type's technical parameter
is as same as the corresponding type of the 2BV2 or 2BV5 series products.
2BV series stainless steel pumps can be used in
some conditions with higher requirements for the corrosive-proof or
the lustration degree.
According to the work situation, the material of all the parts that
the liquid flows (i.e. pump
casing, pump cover,
port plate, impeller)are
chosen various stainless steel as bellow:
SUS304（0Cr18Ni9)
SUS316（0Cr17Ni12Mo2）
SUS316L（00Cr17Ni14Mo2）
The material of the shaft：2Cr13 or 0Cr18Ni12Mo2Ti
The mechanical seals are adopted the John Crane products, the seals
material is optional for FPM or PTFE.
Comparing with the SK, 2SK, SZ water ring vacuum pumps, the 2BV series products possess the characteristics as bellow：
- The close-coupled design is convenient to install and save space.
- The standard seals are all adopted the John Crane mechanical seals.
- 2BV series products are all have the cavitation protect port, when they work in the condition near the limited vacuum, open the cavitation protect port (or connect with the separator), so the screaming can be get rid of well and the pumps are protected.
- Aluminium bronze impeller is high intensity, wear well, and improves the erosive-proof capacity of the pump. If the parts that the liquid flows are adopted the stainless steel material，the pumps can be used in more rigorous condition.
- The unique design of the discharge port dose not occur any over-pressure so that ensuring the best efficient performance in the pump's working range.
- The motors are all adopted Y2 series products, the protection grade is IP54,the insulation grade is F.
- The bearings are all adopted the import products of brand NTN or NSK.
The main application areas of the 2BV series products
(Chemical filtering factories, chemical processing factories, iron ore factory, mining, phosphorite, paper making, poultry processing, coal-selecting factories.)
