SH series and S series are single-stage, double-suction, horizontal split centrifugal pumps, suitable for transporting clean water and non-corrosive (or weakly corrosive) liquids. The maximum allowable temperature of the medium is 80°C. After cooling water is introduced into the bearing bodies at both ends, hot water below 130°C can be transported. Changing the manufacturing materials of the sealing ring, sleeve and impeller can transport muddy water containing mud and sand; changing the manufacturing materials of the pump body and pump cover can increase the inlet pressure of the pump, and can be used in closed cycle situations such as air conditioning and heating. Copper impeller and copper sealing ring for transporting oil.
The shaft seal of the single stage double suction split pump adopts soft packing seal, or mechanical seal can be used. Viewed from the direction of the motor, the water inlet of the SH-type water pump is on the left (counterclockwise rotation); the water inlet of the S-type pump is on the right (clockwise rotation). The rotation direction of the pump can be changed according to user requirements.
SH.S type single stage double suction split pump parameter list
Start, stop and maintenance for S type pump
1,Ready before starting：
A,Moving the motor vane by hand, the impeller shouldn't rub, the rotation is nimble.
B,Open inlet valve and discharge valve to fill whole pump with liquid, then close discharge valve after it is full.
C,Start pump by hand. to make lubrication enter into mechanical seal surface.
D,Start motor . check revolving direction is right or not.
2,Start and running
A,Full-open inlet valve.close the valve of discharge pipeline.
B,Turn on power source, open the valve on discharge pipeline to regulate work condition after revolving speed of pumpkeep normal.
C,Observing gauge data carefully, checking the leakage condition of shaft's seal. When it is nomal the leakage quantitfyof mechanical seal is<3 drop/minute, the leakage quantity of stuffing is <10 ml/n.
D,Check the motor and bearing. its temperature should be≤70℃, if they aren't normal, itshould treat in time.
3,Stop
A,Close the valve of discharge pipeline, turn off power source.·
B,Close the valve of inlet.
C,lf ambient temperature is lower than 0℃, all the liquid in single stage double suction split pump should discharge to avoid freezing and cracking.
D,lf unit keeps stop condition for long time, we should disassemble pump and coat rust-proof grease on it.
4,Maintenance during operation
A,Inlet pipeline should full with liquid, prohibit single stage double suction split pump to operate in cavitate condition;
B,Check the current value of motor periodically, it shouldn 't higher than rated current of motor;
C,lf pump operates for long time, you should replace damageable parts and check unit periodically, the check time is one year in a general way.
5,Maintenance for mechanism seal
A,The lubrication of mechanism seal should clean without solid particle.
B,Prohibiting mechanism seal working in the dry grinding condition.
C,Start pump (motor)for several circle before starting. to avoid graphite ring to be damaged.
D,The leakage tolerance of mechanical seal is about 3 drop/minute, or else it should be checked.
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