General
Type GSX series product is characterized by broad comprehensive performance curve,sound hydraulic performance, novel structure,high efficiency,high reliability,low net positive suction head ,and low maintenance.
The design,manufacture,and quality of this series product meet the standard of GB/T5656"Technical conditions for centrifugal pumps-Class II"and its efficiency indexes meet the standard of GB/T19762"The minimum allowable values of energy efficiency and evaluating values of energy conservation of centrifugal pump for fresh water"
Application
GSX series products are mainly used for transport fresh water or other liquid with similar physicochemical properties to fresh water,it can also be widely applied in water supply and drainage system or circulation cooling water system for steel,petrochemical,thermal power generation,mining,and other working conditions
Performance Parameters Table
Model
Capacity(m³/h)
Head(m)
Pump efficiency (%)
Shaft power (kW)
Speed(rpm)
Impeller outer diameter(mm)
Inlet diameter(mm)
Outlet diameter(mm)
GSX250-770
882
226
76
715
1480
770
DN300
DN250
1260
216
83
894
1512
205
83
1018
Product Attribute
Attribute
Attributes
Attribute value
Material
Impeller
ZG07Cr19Ni10
Pump shaft
40Cr
Machinery Seal
Import/Domestic
Pump cover (body)
HT250
Housing seal ring
Q235-B/ZG230-450
Impeller sealing ring (optional)
ZG07Cr19Ni10
Bearing
Import/Domestic
Working conditions
Medium temperature (ºC)
<80ºC
Maximum ambient temperature (ºC)
40ºC
Installation
Inlet diameter (mm)
DN300
Outlet diameter (mm)
DN250
Direction of rotation
Clockwise from the motor to the pump
Entrance orientation
level in
Exit orientation
level out
Base form
/
Motor
Number of motor phases
3
Motor power safety factor
1.2
Protection class
IP54
Insulation class
F
Motor power (kW)
900
Motor model
YX450-4
Power frequency (Hz)
50
Rated voltage (V)
6000
Energy efficiency rating
2
Package
Pump weight (kg)
1700
Motor weight (kg)
3780
Structural feature
1.Sealing
Superior mechanical seal,long term operation without leakage
Mechanical seal,strong interchangeability for universal use by non-asbestos soft packing structure and injection type packing structure
Stainless steel shaft sleeve for easy maintenance
Half packing gland,large space for packing replacement
2.Protective cover
Half-split structure,comply with IE standard,safe and reliable
3.Casing
Circular pressure chamber design with high efficiency
Double-volute pumping chamber is with balanced radial force and sound strength; bearing and seal are with small force withstanding and long service life
Water suction chamber is with split rib design;inlet is without vortex and noise while with stable operation and sound cavitation performance
The inlet and outlet water channels are coated with smooth wear-resistant coating,and water loss is small
Auto-correct pump cover for easy installation
Inlet DN≤500 for universal use by vertical and horizontal types
4.Bearing
Short span and enlarged diameter design, stable operation and long service life.
Grease lubrication with small and medium pump,online refueling
Provided with online vibration and temperature measuring devices to ensure safety operation
Transfer high temperature liquid,employ water-cooling structure
5.Shaft
Bold design,universal use for 50HZ and 60HZ pump shaft,sound rigidity, and stable operation
Full sealing design, no contact with liquid, and easy maintenance
Allow short-time inversion, common shaft for forward and reverse rotations
6.Impeller
Three-dimensional flow theory design employed,CFD calculation simulation,high efficiency, high efficiency zone width, and sound