Pump GH-25/4 - Pumps for food liquids
General information
GH25/4 - single-stage pump - an improved version of the GA type pumps - popularly known as milkers.
The GH series pumps were designed to introduce hygienic solutions to the basic pump parameters used in the food industry. The pump parameters and connection dimensions correspond to those of the GA series.
The pumps are designed with the current requirements for food industry applications in mind.
The GH25/4 pump has the same impeller as the GH25 pump, but the motor power has been increased to 4.0kW, making it possible to pump denser media. The pump components are made entirely of acid-resistant steels, the pump casing and all parts in 1.4404 (316L) steel, internal surface roughness ≤0.8µm, washable casing gasket and all components inside the casing.
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Application
The GH25/4 pump is intended for the transport of non-concentrated or concentrated food liquids with a dry matter content of up to 50% or other foodstuffs with similar properties at a temperature of up to 95°C.
The pump can be used in installations where food safety is very important. Versions with hygienic mechanical seals are available, fully assuring the safety of the pumped media. Pump versions with internal component roughness ≤0.4µm are possible.
The pump may be used, among other things, in
- transport of liquid food products with viscosity up to 1000 cP,
- dairies (fresh and pasteurised milk, whey, ice cream mixes),
- fruit and vegetable processing (non-clarified juices, clarified juices, juices with fibres, fruit drinks, vegetable drinks, wines, liqueurs)
- distilling (distillery mash, spirits),
- pharmaceuticals,
- pumping of basic utilities in the food industry (water, cold or hot purified water,
- cleaning fluids for the CIP system,
- other fluids.
General characteristics
The GH25/4 type pump is a centrifugal pump and, together with the motor, is a closed monolithic structure resting on 4 spherical feet, adjustable to allow the pump to be levelled.
Pump impeller - open, seated on the extended shaft of the motor driving the pump. External pump casing mounted with cap screws to the pump casing. An o-ring seal is fitted between the outer casing and the pump casing so that it can be washed out during the CIP cleaning process.
The external casing and pump casing are made of thick metal sheets, specially shaped in a forming process, which contributes to the durability and reliability of the pump.
Connection ferrules with Rd male threads in accordance with DIN 11851. Pump manufactured in AISI 316 stainless steel (1.4404) for parts coming into contact with the product and AISI 304 (EN 1.4301)for other parts such as the casing or base.
Shaft seals: double face mechanical seal with flushing fluid (water) or single face seal; seal material sets selected to suit the medium to be pumped.
Sealing kits available as standard:
Silicon carbide/silicon carbide,
Impregnated carbon/ceramic.
Fluoroelastomer (VITON)
Nitrile (NBR)
Other seal material sets on request.
Advantages, certificates
The following advantages of the pump are worth mentioning: easy operation, low energy consumption, hygiene, easy cleaning of parts, convertibility (no foundation required).
The pumps have the necessary approvals for use in the food industry. The pumps are provided with a declaration of conformity and the CE safety mark.
Technical specifications
| Description | units of measurement | |
|---|---|---|
| capacity* | [m³/h] | 29,0 |
| Headroom* | [mH2O]. | 22,0 |
| rotor diameter | [mm] | 140 |
| motor type | 4SLg 100L-2PC | |
| rated current/voltage | [A/V] | 7,5/400 |
| motor power | [kW] | 4,0 |
| motor speed | [min-1] | 2875 |
| weight | [kg] | 74,0 |
| * Values given for pure cold water. | ||
Overall dimensions of the pump
| No. | Name of part | Number of pieces |
|---|---|---|
| 1 |
SLg100L-2PC electric motor 4.0 kW / 2890 rpm. or PSLg 100L-2 electric motor 4.0 kW / 2885 rpm. |
1 |
| 2 | Pump casing | 1 |
| 3 | Jet ring | 1 |
| 4 | Stud bolt M12 | 10 |
| 5 | Face seal | 1 |
| 6 | Spacer ring | 1 |
| 7 | Rotor ø140 | 1 |
| 8 | Cap nut | 1 |
| 9 | Cap nut gasket | 1 |
| 10 | Body seal | 1 |
| 11 | Outer housing | 1 |
| 12 | Stud bolt M10 | 6 |
| 13 | Pump base | 1 |
| 14 | Ball foot | 4 |
| 15 | Motor cover | 1 |
| 16 | Prism slot A6x6x16 | 1 |
Pump characteristics


