Description 

IS pump is single stage end suction centrifugal pump. It can transport clear water or the liquids with physical or chemical properties similar to clear water, the temperature of liquid is less than 80℃. Features of pump: reliable, easy installation and maintenance. 

ISR type hot water pump can transport hot water whose temperature is less than 120℃.

The design of SLNC pump compromises the merits of IS pump, SLW pumps and cantilever type end suction pumps, better performance and more reasonable internal structure and outlook. It can transport clear water or the liquids with physical or chemical properties similar to clear water, the temperature of liquid is less than 100℃.

Application Area 

IS、ISR type pump is widely used in industry and urban water supply, drainage, agricultural irrigation.

SLNC type single stage end suction cantilever centrifugal pump, widely used for industrial and urban water supply and drainage, irrigation, fire boosting, faraway water transferring, cold and hot water circulation and pressurization for heating and bathroom, or with other devices for complete application.

Performance Range 

IS/ISR type series performance range 

Inlet diameter：50-200mm(2\"-8\") 

Capacity：6.3-400m3/h 

Head：5-125m 

Speed：2900r/min and 1450r/min 

Matched power：0.55-110kW 

Sealing has packing seal and mechanical seal.

Inlet diameter：32-400mm(1.5\"-16\") 

Capacity：15-2000m3/h 

Head：10-140m 

Speed：2950r/min,1480r/min,980r/min. 

Liquid temperature：-10℃ to 100℃

Structural Characteristics 

IS\ISR Structural Characteristics 

The pump casing and pump cover of IS/ISR type pump are divided on the the back of impeller,which is usually called the back-open structural form.It is characterized by convenient repair on rotor without dismantling the pump casing,inlet and outlet pipeline. 

The pump casing (the pump volute and pump cover)composes a pump’s working room.The impeller,bearing and roller bearing make up of a pump’s rotor.The suspension bearing part supports the pump’s rotor,and the roller bearing bears a pump’s radial force and residual axial force.

In order to balance a pump’s axial force,seal rings are always to be set at front-and-back cover plate of the impeller for most pumps,and balance holes are set at the impeller backboard.Because some pump’s axial forces are not strong,seal rings and balance holes are not designed for impeller’s back-cover plate. 

The pump’s shaft seal is made up of packing gland 9,shaft sleeve 8 and packing 11,etc,or it adopts mechanical seal to prevent air from going in or avoid large quantity of water leak. 

In order to avoid bearing abrasion,shaft sleeve protection is installed at the place where the shaft passes through the packing chamber.O-ring is installed between the shaft sleeve and the shaft so as to prevent air from coming in along the fitting surface or water leak. 

The pump is driven through the connection of shaft coupling and electric motor. The pump rotates clockwise from the direction of the driver end. 

ISR type hot water pump is made based on the IS type pump. There is a cooling chamber inside the pump cover, which makes use of normal-pressure cool water to cool down the packing part, so the temperature of medium transported can be as high as 120℃.

Furthermore, this type of pump can also be used to transport clear water of normal temperature. Meanwhile, it is unnecessary to feed water into the cooling chamber, and that one machine can have many functions can be realized.

SLNC Structural Characteristics 

1. Compact structure. Pump and motor are coupled by coupling, beautiful appearance and less area occupation. 

2. Stable operation, low noise, high concentricity of assembly. Impeller is well dynamically and statically balanced, less vibration, ensure better performance and operation surrounding. 

3. No leakage. Graphite vs SiC mechanical seal ensure clean operation condition at site. 

4. Easy and convenient installation. Back-pull-out design, no need disassembling the pipeline for maintenance.