Product Overview:
QPG series Shielding type air-conditioner, special boiler circulating pump is based on the current market is common pump noise is too big, big vibration, easy to leak, and affected people's normal work and living environment of the ideal solution, and integrated design of the pump and motor, the pump cavity and motor made an absolute sealing unit.
On the one hand, minus the main common pump mechanical seal parts, (shaft seal), thus completely solve the water pump for shaft seal (dynamic seal) damage and leakage problems, so that the water pump is leakproof, pump room clean and tidy.
On the other hand, to get rid of the rolling bearing, using impregnated graphite material made of sliding bearing, the advantages of small friction coefficient, lubricating, high wear resistance, with medium lubrication, thus the whole machine is mute design, low noise, at the same time also omitted to bearing lubricated periodically and maintenance costs, in addition, the impeller used the suspension design, make the rotor is always in a state of suspension in the operation, reduces the rotor axial wear of graphite bearing, so that the service life of graphite bearing multiply, can reach more than 40000 hours, so we promised three years free maintenance, which greatly reduces the labor intensity of workers and running cost, is actually a hvac, thermal, and other is the ideal high quality water pump of water supply system
Working conditions:
The highest pressure of QPG (R) system: 1.6 MPa, the suction pressure of pump + pump lift 1.6 MPa or less, if user when the system pressure is higher than 1.6 MPa, and can be separately with orders.
QPG (R) type pumps are mainly used for conveying water or other physical and chemical properties similar to water medium, QPG type pump medium temperature less than 60 ℃, QPGR type pump medium temperature does not exceed 150 ℃
PBG(QPG) Shielding pump features
1. Pump integration design, cancel the shaft seal
Using shielding motor, pump machine overall design, so as to cancel the easy wear of the shaft seal (that is, the mechanical seal). Due to cancelled the shaft seal, shielding pump life without purging the real done, both to avoid the waste of water resources, and make the pump room is dry clean, greatly improved the working conditions of pump room and pump room image.
2. Wet rotor, water-cooled motor
After using water-cooled motor, cancelled one of the main noise sources of the pump - high speed cooling fan; And rotor, bearing and so on all moving parts are filled with water, the sound down after water blocking further
3. Graphite sliding bearing
Shielding pump after graphite instead of traditional ball bearing for sliding bearing, further reducing the noise of the machine; Graphite bearing inner surface with spiral channel at the same time, make the graphite bearing radial wear surface (i.e., bearing wall) get good self-lubricating, without artificial gas
4.“Satellite ni60 weld-deposited cladding” technique
Thrust plate adopt " Satellite ni60 weld-deposited cladding " technique, form high wear resistance of the friction pair, safe and durable.
5.. Suspended impeller technology
Shielding pump company adopt method of suspension impeller technology developed by tsinghua university institute of fluid, the pump start after a few seconds, graphite bearing and thrust disc axial friction surface is automatically entered into the axial wear working condition, combined with the thrust plate of " Satellite ni60 weld-deposited cladding " technique, the shielding pump graphite bearing life under the working condition of continuous operation, a total of 40000 hours
6. The stator cold gadolinium moulding, coil class H insulation class
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