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DIN 24255 High Pressure End Suction Centrifugal Pump , Fire - Fighting Water Centrifugal Pump

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DIN 24255 High Pressure End Suction Centrifugal Pump , Fire - Fighting Water Centrifugal Pump

Brand Name : GSD
Model Number : GHS
Certification : CE, ISO
Place of Origin : CHINA
MOQ : Negotiation
Price : Negotiation
Supply Ability : 2000 units per month
Delivery Time : 2-3 weeks
Packaging Details : Plywood case
Application : Sewage, water
Power : 0.37-90 kW ( 0.5 - 120 hp )
Color : Gray, Black
Theory : Centrifugal pump
Impeller : Close type, semi-open type
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DIN 24255 High Pressure End Suction Centrifugal Pump , Fire - Fighting Water Centrifugal Pump​


A. For wastewater treatment plant

B. For building water - supplying

C. For wastewater system

Key points for GHS accessories


foot support structure and spiral volute chamber, with volute chamber, foot, influent flange and discharge flange cast into an integrity. The flanges may be drilled accordance with international stand ISO 2084 DN16 or as requirement.


Closed impeller designed in the excellent hydraulic model to guarantee pump performance and efficiency. The dynamic balance test shall be conducted.


The suspension fork is installed with bearing inside. There are totally 6 bearing specifications for the whole series. The bearings shall be lubricated by lubricating oil (for some specifications) or grease.


A. Designed by following DIN24255

B. Materials are variable based on customer demand

C. The pump rotates in the colckwise direction if viewed from the driven end

D, Easy operation and maintenance.

E. The suction and discharge pipes no need be taken down for pump
cover and impeller disassembly.

F. The GHS parts are universally replaceable. The whole series have 46 models that only adopt six types of shaft. All parts may be universally exchanged.

GHS structure drawing

1Pump body
2Cap nut
3Pipe plug
4Impeller flat key
6Seal ring
7Pump cover
8Pump body O-ring
10Water deflector
11Shaft cap
14Suspension support
15Pump connection flat key



The pump should be place as near the liquid source as practical so that a short direct suction

pipe may be used. The pump should be accessible for inspection and repair work and

headroom be provided for crane. hoist or tackle if the pump is heavy.


Both the suction and discharge lines should be independently supported near the pump so that

no strain will be placed on the casing.

Suction Piping

The suction line should be as short and straight as possible and contain a minimum number of

bends. Any bends necessary should have large radii. Generally the suction pipe is made one or

two sizes larger than the pump suction branch. For pumps operating with suction lift no valves

other than a foot-valve should be placed in the suction line. All these precautions ensure that

maximum available suction head on the pump. Reducers must be eccentric if installed in a

horizontal position (Fig. I). A straight taper reducer (Fig. II) should not be used in a horizontal

suction line, because it may form an air pocket (IIA) in the top of the reducer and the pipe.

It is very important to have the suction line airtight and to avoid undulations in which air may

collect and destroy the vacuum. Where adverse suction conditions may cause the pump to lose

its prime, the use of an external automatic priming device such as a vacuum pump is


Ensure that the system is free from foreign matter such as pipe scale, welding beads, dirt, etc.

It is suggested to flush the whole system before going into operation. If possible use a

temporary suction screen for removal of material in the pipe system.

For a give suction lift, suction capacity depends on the temperature of the liquid. For water

70℃(106°F)or above, care should be taken to ensure that enough pressure is available at the

impeller entry to prevent vaporization.

Foot Valve

Should have a fee area of at least one and a half times the area of the suction pipe.

An efficient strainer should be provided to prevent foreign matter from being drawn into the

pump or choking the foot valve.

When there is any refuse such as sticks, twigs, leaves, etc., in the water, a larger outside

screen, or a large basket strainer. This screen should have sufficient openings to keep the flow

through it below 0.6m (2 feet) per second.

Discharge Piping

Generally the discharge piping is made one size larger than the pump discharge branch size.

The discharge line should be short and direct with the least number of bends and fittings, thus

minimizing the head lost by friction. A non-return valve and discharge valve are usually placed

in the discharge line. The non-return valve is to protect the pump from excessive back

pressure and reverse rotation of the unit, and to protect back flow into the pump incase of

stoppage or failure of the driver. The discharge valve is used to regulate the flow. The

non-return valve Is placed between the discharge valve and the pump so that it may be

inspected or repaired without emptying the discharge line.


The foundation should be substantial to reduce vibrations and rigid enough to avoid any

twisting or misalignment.


The pump driver, if supplied, is correctly aligned on its base plate at the factory. A certain

amount of deformation of the base plate is possible during transit and it is therefore essential

to check alignment before going into operation. The pump shaft should be checked for angular

and parallel alignment. A flexible coupling will not compensate for misalignment. Inaccurate

alignment results in vibration and excessive wear on the bearings, sleeve or shaft and wearing.

The check for angular alignment (Fig. III) should be made by inserting a pair of inside calipers

or taper gauge (IIIA) at four points, spaced at 90℃ intervals, between the coupling faces

which must be within 0.07mm (0.003’’). A check for parallel alignment (Fig. III) is made by

placing a straight edge (IIIB) across the coupling rims at the top, bottom and at both sides.

The unit will be in parallel alignment when the straight edge rests evenly on the coupling rim at

all positions.


A space of approximately 25mm (1’’) should be left between the base plate and top of the

foundation to be filled with grouting. After the grouting has dried the foundation bolts should

be firmly tightened and alignment re-checked.

Work shop

Product Tags:

centrifugal end suction pump


water centrifugal pump

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