2BV series water ring vacuum pump is suitable for pumping gas and steam. Its suction pressure can reach 33 mbar (ABS) (97% vacuum). If transformer oil is used as working fluid, these pumps are called oil ring vacuum pumps, and the suction pressure can reach 6.7mbar (ABS) (i.e. the vacuum degree is 99%). Therefore, the oil ring vacuum pump can completely replace the reciprocating vacuum pump. When the liquid ring vacuum pump works for a long time under the condition of close to the limit vacuum, it is necessary to connect with the cavitation protection pipe to eliminate the scream and protect the pump.
When the compressor is working, the maximum pressure is 0.26mpa (ABS). The higher the discharge pressure, the greater the power of the compressor. Therefore, exhaust pressure data must be provided to select the appropriate motor.
2bv6 series water ring vacuum pump and compressor are mainly used to pump explosive gas or work in flammable and explosive environment. The technical parameters of each type are the same as the corresponding types of 2bv2 or 2bv5 series products.
2BV series stainless steel pump can be used under the condition of higher requirements for corrosion or gloss.
2BV series products have the characteristics of bellows
1. Closed design, convenient installation and space saving.
2. All standard seals are John Crane mechanical seals.
3.2 bv series products have cavitation protection port. When they operate near the limit vacuum, the cavitation protection port opens (or is connected to the separator) to eliminate squeaks and protect the pump.
4. Aluminum bronze impeller has high strength and good wear. It can improve the corrosion resistance of the pump. If the liquid flow part is made of stainless steel, the pump can be used under more stringent conditions.
5. The unique design of discharge port can protect the pump from overpressure and ensure the best efficiency within the working range of the pump.
6. All motors are Y2 series products. The protection class is IP54 or IP55 (usually IP44), and the insulation class is f.
7. All bearings are imported products, with the brand name of NTN or NSK.