Dosing pump grundfos dmh 55 100. DMH pumps
Manufacturer
DMH pumps are hydraulic piston diaphragm dosing pumps from 0.15 l/h to 2 x 1500 l/h with a pressure range from 200 to 4 bar.
The Grundfos DMH range of pumps are extremely robust, wear-resistant pumps for applications where dosing reliability and high pressure capability are required, such as in production lines.
The DMH 28x series has been developed specifically for systems operating under high pressure from 50 to 200 bar. This series is very versatile: it includes a wide range of flow rates and a variety of dosing head sizes, materials and accessories. Customers around the world have valued the reliability and reliability of DMH pumps for many years.
Areas of use
Heat generating equipment. Dosing of various chemical substances at all stages in the power plant:
- In relation to boiler feedwater, cooling water and process water treatment (raw water treatment, ion exchanger chemicals, make-up water treatment, wastewater disinfection).
- Dosing of ammonia, hydrazine, phosphates in systems high pressure(boiler feed water).
Petrochemical, oil and gas, oil refining industries. Dosing of chemicals in oil and gas production areas (in addition to the borehole, platform):
- Dosing of chemicals for the treatment of washing and process water.
- Dosing of paraffin as a lubricant in oil pipelines.
- Dosing of inhibitors and anti-corrosion substances to protect oil pipelines.
- Dosing of additives and catalysts.
- Gas odorization to ensure safety in case of leaks.
Processing of industrial and drinking water
- Unfavorable conditions (hot climate, desert, open installations).
- Higher flow and pressure values.
Explosive areas
- ATEX Directive (94/9/EC), Group II, Category 2 (Zone 1/21).
- ATEX Directive (94/9/EC), Group II, Category 3 (Zone 2/22).
Dosing of flammable liquids
- Dosing of ethyl or methyl alcohol when treating wastewater.
- Purification of kerosene and gasoline in engineering and airport areas.
- Dosing of ethyl and methyl alcohol.
- Dosing of food grade alcohol for disinfection when packaging meat and bread.
Specifications
- Supply: up to 1500 l/h.
- Pressure: up to 200 bar.
- Liquid temperature: -10°C to +90°C.
Key Features
Precise dosing - all the time
DMH pumps have very high accuracy dosing and ensure perfect reproducibility of results. For DMH25x the pulsation of the dosing flow is< ±1.5 % в пределах диапазона управления 10-100 %, а отклонение от линейности составляет ± 2 % от предельного значения шкалы. Для DMH28x пульсация потока дозирования составляет < ± 1.0 % в пределах диапазона управления 10-100 %, а отклонение от линейности составляет ± 1 % от предельного значения шкалы.
Uniform dosing with low pulsation
The DMH series combines advanced drive technology and drive kinematics to ensure uniform dosing with low pulsation and no pressure surges. This means less stress on all system components such as tubing and valves and allows longer intervals between cycles Maintenance for the entire system.
Engines to suit your needs
For applications with special motor requirements, the comprehensive DMH series offers high-quality motors in 50 Hz, 60 Hz, 100 Hz (with VFD), as well as motors classified as explosion-proof or ATEX certified, if required.
Ideally selected material for the housing and parts in contact with the medium
DMH Series models feature a durable cast aluminum body with epoxy coating to ensure compliance with all applications (gray cast iron if required in API 675). Investment and operating costs for spare parts remain low for many years: A wide range of materials for dosing heads, valves and accessories allows you to precisely match the required degree of chemical resistance. All parts in contact with the medium must be resistant to the chemicals used. The membrane is made entirely of PTFE.
Safe and trouble-free operation
Sequentially installed safety valve and system active protection membranes (AMS) protect the pump and the entire system from overpressure in case of blockage of the pressure pipeline. In addition, the deaeration valve on the pump ensures high functional safety of the pump, the plant and the entire process. Thanks to the aluminum housing and piston diaphragm technology, DMH pumps have a very long service life and long maintenance intervals.
Permits and certificates
For use in potentially explosive areas, Grundfos offers motors and pumps classified as explosion-proof or ATEX certified. For petrochemical applications, we offer special versions of our DMH series dosing pumps with API 675 certification.
Flexibility of pump configuration and application
Several different product configurations are available to suit different requirements: Flexible flow control concept: manual or automatic adjustment of the piston stroke length using an electric servomotor. Pumps equipped with double diaphragm with failure indication, or special dosing heads with electrical heating. The universal range of application for these pumps is ensured by the use of a one-piece PTFE metering membrane. Wetted parts are available in various materials, which satisfy almost all dosing needs. Choose the best configuration for your specific application.
Advantages
- High pressure dosing up to 200 bar.
- Very precise dosing.
- One-piece PTFE diaphragm as standard.
Hydropiston diaphragm dosing pumps DMH from 0.15 l/h to 2 x 1500 l/h with pressure range from 200 to 4 bar
General information
The Grundfos DMH range of pumps are extremely robust, wear-resistant pumps for applications where dosing reliability and high pressure capability are required, such as in production lines. The DMH 28x series has been developed specifically for systems operating under high pressure from 50 to 200 bar. The range is extremely versatile, covering a wide range of flow rates and a variety of dosing head sizes, materials and accessories. Customers around the world have been enjoying the trouble-free operation of DMH pumps for many years.
Precise dosing - all the time
DMH pumps have very high dosing accuracy and ensure perfect reproducibility of results. For DMH25x the pulsation of the dosing flow is< ± 1.5 % в пределах диапазона управления 10-100 %, а отклонение от линейности составляет ± 2 % от предельного значения шкалы. Для DMH28x пульсация потока дозирования составляет < ± 1.0 % в пределах диапазона управления 10-100 %, а отклонение от линейности составляет ± 1 % от предельного значения шкалы.
Uniform dosing with low pulsation
The DMH series combines advanced drive technology and drive kinematics to ensure uniform dosing with low pulsation and no pressure surges. This means less stress on all system components, such as tubing and valves, and provides longer maintenance intervals for the entire system.
Engines to suit your needs
For applications with special motor requirements, the comprehensive DMH series offers high-quality motors in 50 Hz, 60 Hz, 100 Hz (with VFD), as well as motors classified as explosion-proof or ATEX certified, if required.
Ideally selected material for the housing and parts in contact with the medium
DMH Series models feature a durable cast aluminum body with epoxy coating to ensure compliance with all applications (gray cast iron if required in API 675). Investment and operating costs for spare parts remain low for many years: A wide range of materials for dosing heads, valves and accessories allows you to precisely match the required degree of chemical resistance. All parts in contact with the medium must be resistant to the chemicals used. The membrane is made entirely of PTFE.
Safe and trouble-free operation
A series safety valve and an active diaphragm protection system (AMS) protect the pump and the entire system from overpressure if the pressure line becomes blocked. In addition, the deaeration valve on the pump ensures high functional safety of the pump, the plant and the entire process. Thanks to the aluminum housing and piston diaphragm technology, DMH pumps have a very long service life and long maintenance intervals.
Approvals and Certifications
For use in potentially explosive areas, we offer motors and pumps classified as explosion-proof or ATEX certified. For petrochemical applications, we offer special versions of our DMH series dosing pumps with API 675 certification.
Flexibility of pump configuration and application
Several different product configurations are available to suit different requirements: Flexible flow control concept: manual or automatic adjustment of the piston stroke length using an electric servomotor. Pumps equipped with double diaphragm with failure indication, or special dosing heads with electrical heating. The universal range of application for these pumps is ensured by the use of a one-piece PTFE metering membrane. Wetted parts are available in a variety of materials to suit virtually all dosing needs. Choose the best configuration for your specific application.
Ready for harsh operating conditions
Power plants
Dosing of various chemicals at all stages in the power plant:
- In relation to boiler feedwater, cooling water and process water treatment (raw water treatment, ion exchanger chemicals, make-up water treatment, wastewater disinfection).
- Dosing of ammonia, hydrazine, phosphates in high pressure systems (boiler feed water).
Petrochemical, oil and gas, oil refining industries
Dosing of chemicals in oil and gas production areas (in addition to the borehole, platform):
- Dosing of chemicals for the treatment of washing and process water
- Dosing paraffin as a lubricant in oil pipelines
- Dosing of inhibitors and anti-corrosion substances to protect oil pipelines
- Dosing of additives and catalysts
- Gas odorization to ensure safety in case of leaks
Processing of industrial and drinking water
- Unfavorable conditions (hot climate, desert, open installations)
- Higher flow and pressure values
Explosive areas
- ATEX Directive (94/9/EC), Group II, Category 2 (Zone 1/21) and
- ATEX Directive (94/9/EC), Group II, Category 3 (Zone 2/22)
Dosing of flammable liquids
- Dosing of ethyl or methyl alcohol during wastewater treatment
- Purification of kerosene and gasoline in engineering and airport areas
- Dosing of ethyl and methyl alcohol
- Dosing of food grade alcohol for disinfection when packaging meat and bread
Specifications
Flow: up to 1500 l/h
Pressure: up to 200 bar
Liquid temperature: -10 °C to +90 °C
Hydropiston diaphragm dosing pumps DMH from 0.15 l/h to 2 x 1500 l/h with pressure range from 200 to 4 bar
General information
The Grundfos DMH range of pumps are extremely robust, wear-resistant pumps for applications where dosing reliability and high pressure capability are required, such as in production lines. The DMH 28x series has been developed specifically for systems operating under high pressure from 50 to 200 bar. The range is extremely versatile, covering a wide range of flow rates and a variety of dosing head sizes, materials and accessories. Customers around the world have been enjoying the trouble-free operation of DMH pumps for many years.
Precise dosing - all the time
DMH pumps have very high dosing accuracy and ensure perfect reproducibility of results. For DMH25x the pulsation of the dosing flow is< ± 1.5 % в пределах диапазона управления 10-100 %, а отклонение от линейности составляет ± 2 % от предельного значения шкалы. Для DMH28x пульсация потока дозирования составляет < ± 1.0 % в пределах диапазона управления 10-100 %, а отклонение от линейности составляет ± 1 % от предельного значения шкалы.
Uniform dosing with low pulsation
The DMH series combines advanced drive technology and drive kinematics to ensure uniform dosing with low pulsation and no pressure surges. This means less stress on all system components, such as tubing and valves, and provides longer maintenance intervals for the entire system.
Engines to suit your needs
For applications with special motor requirements, the comprehensive DMH series offers high-quality motors in 50 Hz, 60 Hz, 100 Hz (with VFD), as well as motors classified as explosion-proof or ATEX certified, if required.
Ideally selected material for the housing and parts in contact with the medium
DMH Series models feature a durable cast aluminum body with epoxy coating to ensure compliance with all applications (gray cast iron if required in API 675). Investment and operating costs for spare parts remain low for many years: A wide range of materials for dosing heads, valves and accessories allows you to precisely match the required degree of chemical resistance. All parts in contact with the medium must be resistant to the chemicals used. The membrane is made entirely of PTFE.
Safe and trouble-free operation
A series safety valve and an active diaphragm protection system (AMS) protect the pump and the entire system from overpressure if the pressure line becomes blocked. In addition, the deaeration valve on the pump ensures high functional safety of the pump, the plant and the entire process. Thanks to the aluminum housing and piston diaphragm technology, DMH pumps have a very long service life and long maintenance intervals.
Approvals and Certifications
For use in potentially explosive areas, we offer motors and pumps classified as explosion-proof or ATEX certified. For petrochemical applications, we offer special versions of our DMH series dosing pumps with API 675 certification.
Flexibility of pump configuration and application
Several different product configurations are available to suit different requirements: Flexible flow control concept: manual or automatic adjustment of the piston stroke length using an electric servomotor. Pumps equipped with double diaphragm with failure indication, or special dosing heads with electrical heating. The universal range of application for these pumps is ensured by the use of a one-piece PTFE metering membrane. Wetted parts are available in a variety of materials to suit virtually all dosing needs. Choose the best configuration for your specific application.
Ready for harsh operating conditions
Power plants
Dosing of various chemicals at all stages in the power plant:
- In relation to boiler feedwater, cooling water and process water treatment (raw water treatment, ion exchanger chemicals, make-up water treatment, wastewater disinfection).
- Dosing of ammonia, hydrazine, phosphates in high pressure systems (boiler feed water).
Petrochemical, oil and gas, oil refining industries
Dosing of chemicals in oil and gas production areas (in addition to the borehole, platform):
- Dosing of chemicals for the treatment of washing and process water
- Dosing paraffin as a lubricant in oil pipelines
- Dosing of inhibitors and anti-corrosion substances to protect oil pipelines
- Dosing of additives and catalysts
- Gas odorization to ensure safety in case of leaks
Processing of industrial and drinking water
- Unfavorable conditions (hot climate, desert, open installations)
- Higher flow and pressure values
Explosive areas
- ATEX Directive (94/9/EC), Group II, Category 2 (Zone 1/21) and
- ATEX Directive (94/9/EC), Group II, Category 3 (Zone 2/22)
Dosing of flammable liquids
- Dosing of ethyl or methyl alcohol during wastewater treatment
- Purification of kerosene and gasoline in engineering and airport areas
- Dosing of ethyl and methyl alcohol
- Dosing of food grade alcohol for disinfection when packaging meat and bread
Specifications
Flow: up to 1500 l/h
Pressure: up to 200 bar
Liquid temperature: -10°C to +90°C
