What are the very common problems of multi-stage fire pumps?
Nov 04, 2022
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Multi-stage fire pump common problems
1, Guide vane set in the guide vane. And spiral guide vane fixed at the rear.
2, Balance drum set to the tail, and spiral guide vane fixed in the rear.
3, Seal ring and bearing shell horizontal multistage pump seat respectively with fastening screws
4, Set in the middle mouth ring. And with fastening screws.
5、The bearing is mounted on the shaft. And round nut and stop pad fastening. Then, a feel off in the bearing of the bearing, the amount of calcium grease in the bearing and bearing box base. Then, the water retainer, paper and a set of shaft is provided on the shaft. Shaft inserted into the balance drum key.
6. Packed in the packing chamber. With a fixed in the packing gland body studs, (2532 and 40 pumps are required at the bottom of the packing chamber for the seal).
Multi-stage fire pump assembly
1, Multistage pump motor seat mounted on the bracket and fixed with bolts.
2, Shaft through the packing chamber. Bearing box and bearing cover end holes, and then installed. A feel diagram. And bolt bearing box, bearing cover fixed on the base.
3, Set on the bracket is 0 seal ring, and balance drum mounted on the shaft (2532 and 40 without mounting type seal ring, balance drum). Then installed in the rear.
4、Shaft, bearing and motor mount are installed upside down. The lower end of the motor seat to the shaft.
5, The first stage impeller and shaft. Then cut into the impeller and sleeve sleeve on the shaft.
6、Insert the key into the shaft sleeve and sleeve. Then in the two round nuts.
7, In the embedded health of the final stage impeller shaft. Install the final stage impeller and shaft.
8, Will be equipped with 0 seal, in the infiltration pump shaft installed in the middle of the rear, and then installed in the guide vane installation. 7, repeat the sequence of 5, 6. Always will install the small and medium-sized weathervane first.
9, Seal ring embedded in the pump seat. One or four bolts are tightened. Then, the pump seat is installed in the head. Note four tensioning bolts through four holes on the support.
10, Tighten the bolt with the tightening nut four.
11, The pump comes back. Pump coupling fixed on the shaft, and will be equipped with and motor coupling bolts fixed in the motor seat.
12、Return piping installation. Each part and each part of the square plug and oil, etc. Pump in the reverse of the above steps to disassemble.
1, Guide vane set in the guide vane. And spiral guide vane fixed at the rear.
2, Balance drum set to the tail, and spiral guide vane fixed in the rear.
3, Seal ring and bearing shell horizontal multistage pump seat respectively with fastening screws
4, Set in the middle mouth ring. And with fastening screws.
5、The bearing is mounted on the shaft. And round nut and stop pad fastening. Then, a feel off in the bearing of the bearing, the amount of calcium grease in the bearing and bearing box base. Then, the water retainer, paper and a set of shaft is provided on the shaft. Shaft inserted into the balance drum key.
6. Packed in the packing chamber. With a fixed in the packing gland body studs, (2532 and 40 pumps are required at the bottom of the packing chamber for the seal).
Multi-stage fire pump assembly
1, Multistage pump motor seat mounted on the bracket and fixed with bolts.
2, Shaft through the packing chamber. Bearing box and bearing cover end holes, and then installed. A feel diagram. And bolt bearing box, bearing cover fixed on the base.
3, Set on the bracket is 0 seal ring, and balance drum mounted on the shaft (2532 and 40 without mounting type seal ring, balance drum). Then installed in the rear.
4、Shaft, bearing and motor mount are installed upside down. The lower end of the motor seat to the shaft.
5, The first stage impeller and shaft. Then cut into the impeller and sleeve sleeve on the shaft.
6、Insert the key into the shaft sleeve and sleeve. Then in the two round nuts.
7, In the embedded health of the final stage impeller shaft. Install the final stage impeller and shaft.
8, Will be equipped with 0 seal, in the infiltration pump shaft installed in the middle of the rear, and then installed in the guide vane installation. 7, repeat the sequence of 5, 6. Always will install the small and medium-sized weathervane first.
9, Seal ring embedded in the pump seat. One or four bolts are tightened. Then, the pump seat is installed in the head. Note four tensioning bolts through four holes on the support.
10, Tighten the bolt with the tightening nut four.
11, The pump comes back. Pump coupling fixed on the shaft, and will be equipped with and motor coupling bolts fixed in the motor seat.
12、Return piping installation. Each part and each part of the square plug and oil, etc. Pump in the reverse of the above steps to disassemble.
