ZH Temperature resistant non clogging self sucking pump

H type high temperature resistant non clog self-priming pump is my company with a single-stage single suction centrifugal pump self-priming chemical development and production of similar products at home and abroad, the pump for conveying the temperature of 0 DEG to 150 DEG C, containing solid particles less than 3 mm, containing less than 35% solid medium.

Pump performance range: flow rate of 1.6 ~ 400m3/h, head for 5 ~ 125m. Suction height of 5 meters or less.

According to the transmission medium, making material can be used in cast iron, cast steel, 304, 316, 316L and other materials.

Pump model meaning

ZH50-32-160A

Z--Self suction pump code

H--Chemical centrifugal pump code

50--Pump suction inlet diameter(mm)

32--Pump outlet diameter(mm)

160--Pump impeller nominal diameter(mm)

A--Cutting impeller diameter sequence

3.Performance table

Model Type	Revolutional speed n=2900r/min			Revolutional speed n=1450r/min
	Caacity  (m3/h)	Head (m)	Motor Power  (KW)	Caacity  (m3/h)	Head (m)	Motor Power  (KW)
ZH25-25-125	3.2	20	1.1	1.6	5	0.55
ZH25-25-160	3.2	32	2.2	1.6	8	0.55
ZH25-25-200	3.2	50	5.5	1.6	12.5	0.75
ZH25-25-250	3.2	80	7.5	1.6	20	1.5
ZH40-32-125	6.3	20	1.5	3.2	5	0.55
ZH40-32-160	6.3	32	3	3.2	8	0.55
ZH40-32-200	6.3	50	5.5	3.2	12.5	1.1
ZH40-32-250	6.3	80	11	3.2	20	2.2
ZH50-32-125	12.5	20	3	6.3	5	0.55
ZH50-32-160	12.5	32	4	6.3	8	0.55
ZH50-32-200	12.5	50	7.5	6.3	12.5	1.1
ZH50-32-250	12.5	80	15	6.3	20	2.2
ZH65-50-125	25	20	4	12.5	5	0.55
ZH65-50-160	25	32	7.5	12.5	8	1.5
ZH65-40-200	25	50	11	12.5	12.5	2.2
ZH65-40-250	25	80	22	12.5	20	3
ZH65-40-315	25	125	37	12.5	32	5.5
ZH80-65-125	50	20	7.5	25	5	0.75
ZH80-50-160	50	32	11	25	8	1.5
ZH80-50-200	50	50	18.5	25	12.5	2.2
ZH80-50-250	50	80	37	25	20	4
ZH80-50-315	50	125	75	25	32	7.5
ZH100-80-125	100	20	15	20	5	1.5
ZH100-80-160	100	32	22	20	8	2.2
ZH100-65-200	100	50	37	20	12.5	4
ZH100-65-250	100	80	55	20	20	5.5
ZH100-65-315	100	125	75	20	32	11
ZH125-100-200	200	50	55	100	12.5	7.5
ZH125-100-250	200	80	75	100	20	11
ZH125-100-315	200	125	110	100	32	18.5
ZH125-100-400				100	50	37
ZH150-125-250				200	20	18.5
ZH150-125-315				200	32	37
ZH150-125-400				200	50	75
ZH200-150-250				400	20	55
ZH200-150-315				400	32	75
ZH200-150-400				400	50	110

5.Structure description

ZH type self - suction chemical centrifugal pump mainly by the pump body, impeller, pump cover, shaft, bracket, mechanical seal, shaft and other parts. See the ZH type self suction centrifugal pump chemical structure diagram.

The suction effect of the pump is good, the true realization of a drainage, life-long self absorption".

ZH type self suction centrifugal pump chemical pump shaft with bold high stiffness, and three imported bearings, with a smooth operation, no noise. Built in combined mechanical seal with a water cooling device, greatly improving the service life.

The direction of rotation of the pump: the self suction end face is a counter clockwise rotation.

6.Pump installation

The pump installed reasonably or not, has a great influence on the normal operation and service life of the pump, so must be carefully fitted according to the correction, not sloppy, pumps installed by the appearance and size for ZH type self-priming chemical centrifugal pump size chart and table.

Pump suction and discharge lines must be additional support, not with the pump for support.

According to the installation location should be convenient to tour inspection and maintenance.

Inlet and outlet piping must be fitted with valves to be used for inspection and repair.

installation order:

The unit on the basis of buried foot bolt on the correction unit level, tighten the anchor nut.

Sit and anchor bolt hole for pouring concrete when the concrete bottom, dried, re check the pump shaft level.

Then the inlet and outlet pipes, once again check the shaft coupling, measuring coupling on the outer circle, the lower, the left and right of the difference shall not exceed 0.1mm, two coupling end clearance rotation within a week shall not exceed 0.3mm.

Connect and drive cooling water.

Through the upper end of the pump liquid filling holes will be filled with liquid.

Point the motor to ensure that the motor steering and pump to the same direction.

7.Start, stop, disassemble and assemble

A start

The opening of the cooling water, hand rotation of the shaft coupling, should not touch the phenomenon.

Check for the first time in the bracket of the lubricating oil and the pump cavity. (starting with no need to fill up again later)

Start motor, while the liquid filling hole to relax, do not tighten, the exhaust valves on the liquid outlet tube is also small open, to pump water and then slowly adjust, and tighten the liquid filling hole. Start to the water generally takes 2-10 minutes.

Should always check the pump bearing parts and motor temperature, the temperature should not be more than 75.

Note: pump operation should be no noise, such as abnormal situation, should immediately stop the inspection.

B Stop

Slowly close the valve and all kinds of instruments.

Cut off the power

After shutdown, shut off the cooling water.

C disassemble

When the pump abnormal conditions need to be repaired, should be carried out in order to remove

A Open the oil drain screw on the bracket, and put the lubricating oil in the bracket.

B Open the bracket and the pump body on the nut, remove the pump body, left the impeller nut, remove the impeller and key.

C The pump cover sleeve and mechanical seal on the pump shaft is removed from

D Sealed screw stud gland, remove the gland, mechanical seal ring and sleeve. Screw down the sealing box and the pump cover connected stud, take out the mechanical seal static ring.

E Open the bearing end cover at both ends of the bracket, remove the pump shaft and bearing, and then remove the bearing from the pump shaft.

F If you are in trouble, please contact with me

D ssembling

The assembly sequence is opposite to the disassembly sequence.

6.Note the use of mechanical seals

This type of pump can be installed in different forms of mechanical seals according to different conditions of use (such as inside the single end balance and non balance, double end balance and non balance type, external mechanical seal, etc.) According to the different type of seal, the use of methods and precautions should be different, please refer to the specific circumstances of mechanical seal installation manual, GB3215-82 refinery, chemical and petrochemical processes of centrifugal pump under general technical conditions ", to provide some general precautions:

due to mechanical seals factory applicable to suspended particles in the role of the media, and therefore, please fill the cooling water.

Remove the mechanical seal should be carefully, no percussion hammer and iron, so as not to damage the dynamic and static ring sealing surface.

If there is dirt and can not be removed, should try to remove dirt, rinse after removal, so as not to damage the sealing element.

Before the installation of mechanical seals, should check whether all the sealing element is invalid or damaged, if there is a re repair or replacement.

Should strictly check the dynamic ring and the static ring relative friction between the sealing surface, any slight scratches are not allowed, bumps and other defects, all the parts including pump body, impeller, seal cavity in the assembly should be clean, especially the dynamic and static ring face, carefully wipe clean with a clean, soft cloth or cotton yarn and then coated with a layer of clean oil or grease.

In the assembly must pay attention to the elimination of the deviation, fastening screws, to be evenly tightened to avoid deflection, so that the sealing failure.

The correct adjustment of compression spring, pump installed, in the hands of rotor, we should feel the seal spring not only a certain amount of compression, and can flexibly rotate light, not to bite the feeling. If the feeling is too tight or disk does not move, it should be appropriate to relax some of the.

Before starting, the cooling water should be turned on, so that the sealing cavity is filled with the sealing liquid. When parking, first stop the pump, then shut the seal cooling water.