Jining Jiuzhong Machinery Equipment Co., Ltd.

*Multi-stage vertical centrifugal pump
Product introduction of D vertical multi-stage pump:
D. series vertical multi-stage centrifugal pump (low speed r/) is designed by our factory based on the water supply of high-rise buildings It is a new product developed in accordance with the actual needs of the market and the National Fire Protection Bureau-"Fire Pump Performance 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 pump product features:
D vertical multi-stage centrifugal pump adopts domestic excellent high-efficiency and energy-saving hydraulic model, has high efficiency, high performance, gentle curve and wide operating range, complies with the relevant regulations of the fire station and meets different users. D vertical multi-stage pump adopts vertical segmented structure and has the advantages of smooth operation, low noise, long service life, small floor space, and convenient installation and maintenance.
D vertical multi-stage pump product usage:
D vertical multi-stage pump is 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 It is used as supporting equipment for water supply and drainage in factories and mines, long-distance water delivery, and water for various production processes. D-type vertical multi-stage pump medium operating temperature does not exceed ℃. Type medium operating temperature does not exceed ℃
Model meaning
D(r)
Pump inlet and outlet diameter
D vertical multi-stage pump Stage centrifugal pump
(r) Hot water type
Design flow rate
Pump design point single-stage lift
Number of stages
Model number, speed, efficiency, flow rate, lift, power weight
/> r /% /
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D vertical multi-level Conditions for use of the pump:
The medium used should have a kinematic viscosity similar to water/and no hard particles and no corrosive properties
When the ambient altitude of the D vertical multi-stage pump exceeds 10 meters, it should be mentioned before ordering. Our factory provides you with
more reliable products
, medium operating temperature - ℃ ~ ℃
, maximum system working pressure.
, ambient temperature should be lower than ℃ relative to Humidity is less than %.
Structural description of D vertical multi-stage pump:
D vertical multi-stage centrifugal pump consists of two parts: motor and pump. The motor is a three-phase asynchronous motor. The pump and motor are connected by a coupling and the whole is rigidly connected. No calibration is required for use. 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 rotation direction of the D vertical multi-stage pump is counterclockwise when viewed downward from the driving end.
, D vertical multi-stage pump has a compact structure, small volume, beautiful appearance, small footprint and saves construction costs
, D vertical multi-stage pump has the suction and outlet on the same center line to simplify the pipeline. Connection
, According to the actual situation, the inlet and outlet of the D vertical multi-stage pump can be assembled in different directions
, According to the actual situation, the outlet of the D vertical multi-stage pump can be assembled into ~ outlets to meet the requirements Different heads are obtained on the same pump
Factory address: Liying Industrial Park, Rencheng District, Jining, Shandong
Sales phone:
Consultation: