Jining Jiuzhong Machinery Equipment Co., Ltd.

D.-.*Multi-stage centrifugal pump
D vertical multi-stage centrifugal pump (low speed r/) is designed by our factory based on the actual needs of the high-rise building water supply market and the National Fire Protection Bureau-"Fire Pump Performance It is a new type of product developed according to the "Requirements and Test Methods" standards. It is used to transport media that does not contain hard particles and has physical and chemical properties similar to water. The flow range is ~/the head range is ~ and the matching power range is.~ The caliber range is ~. The outlet of the same pump can be equipped with two outlets.
D.-.* Vertical multi-stage centrifugal pump adopts domestic excellent high-efficiency and energy-saving hydraulic model. It has high efficiency, high performance, gentle curve and wide operating range. It complies with the relevant regulations of the fire station and meets the needs of different users. D Vertical multi-stage centrifugal pump The pump adopts a vertical segmented structure and has the advantages of smooth operation, low noise, long service life, small floor space, and easy installation and maintenance.
D.-.* Vertical multi-stage pumps are mainly used for domestic water supply in high-rise buildings, constant pressure water supply for fire protection, automatic spray water, automatic water curtain water supply, etc. It can also be used in water supply and drainage in factories and mines, and long-distance water delivery. Equipment supporting use and various production process water, etc.
D vertical multi-stage pump medium operating temperature does not exceed ℃. Type medium operating temperature does not exceed ℃
Model series speed efficiency flow rate lift power weight
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D.-.* Conditions for use of vertical multi-stage centrifugal pumps
The medium used should have a kinematic viscosity similar to water/and no hard particles Non-corrosive properties
, If the ambient altitude of the D vertical multi-stage centrifugal pump exceeds 30 meters, it should be mentioned when ordering so that our factory can provide you with more reliable products
, Medium operating temperature -℃~ ℃
, maximum system working pressure.
, ambient temperature should be lower than ℃, relative humidity lower than %.
Structural description of D vertical multi-stage centrifugal pump
D.-.* Vertical multi-stage pump consists of two parts: motor and pump. The motor is a three-phase asynchronous motor. The pump and motor are connected to the whole by a coupling. No correction is required when used for rigid connections. The pump consists of a stator part and a rotor part. The stator part of the pump is composed of water inlet section, middle section, guide vane, water outlet section, stuffing box body and other parts. In order to prevent the stator from wearing out, the stator is equipped with sealing rings and balance sleeves that can be replaced with spare parts after wear. The rotor part consists of shaft, impeller, balance hub, etc. The lower end of the rotor is a water-lubricated bearing and the upper part is an angular contact ball bearing. Most of the axial force of the vertical multi-stage pump is borne by the balance drum and the remaining small part of the residual axial force is borne by the angular contact ball bearing. The water inlet section, water outlet section and joint surface are sealed by using paper pads.
The shaft seal adopts packing or mechanical seal, users can choose according to their needs.
The direction of rotation of the D vertical multi-stage centrifugal pump is counterclockwise when viewed downward from the driving end.
, D vertical multi-stage centrifugal pump has a compact structure, small volume, beautiful appearance, small footprint, and saves construction costs
, D vertical multi-stage centrifugal pump’s suction and outlet are on the same center line to simplify the piping The connection of the road
, according to the actual situation, the inlet and outlet of the vertical high-pressure pump can be assembled into, different directions
, according to the actual situation, the outlet of the vertical multi-stage centrifugal pump can be assembled into ~ outlet In order to meet the needs of different lifts on the same pump
Factory address: Liying Industrial Park, Rencheng District, Jining, Shandong
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