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SEEPEX

SEEPEX is a German manufacturer of progressive cavity pumps and associated systems, with a product history that includes the development of the first progressive cavity pump for industrial applications in the 1930s. The company's portfolio covers progressive cavity pumps for metering, transfer, and dosing duties, as well as macerators, control systems, and accessories. SEEPEX pumps are used in water and wastewater treatment, chemical and petrochemical processing, food and beverage production, pulp and paper, mining, and oil and gas. The progressive cavity pump design uses a single helical rotor rotating inside a double helical stator, creating sealed cavities that move axially to produce a continuous, low-pulsation flow. This geometry allows the handling of viscous, shear-sensitive, abrasive, and solids-laden media without emulsification or degradation. SEEPEX metering pumps are positive-displacement units that deliver precise volumetric dosing independent of discharge pressure, making them suitable for chemical dosing, polymer preparation, and additive injection. The pumps are available in various materials of construction, including cast iron, stainless steel, and higher-alloy options, with stator elastomers such as NBR, EPDM, Viton, and silicone to suit different media and temperatures. Drive options include fixed-speed and variable-speed motors, with nameplate voltages commonly 115V AC or 120V AC single-phase for smaller metering models, and three-phase for larger transfer pumps. Sealing arrangements range from single mechanical seals to cartridge and quenched seals, depending on the application. 3G Electric supplies SEEPEX progressive cavity metering pumps and related components globally. The current catalog includes multiple SKUs of 1/2 hp and 3/4 hp metering pumps with stainless steel housings, titanium or stainless steel rotors, and Viton seals, operating on 115V AC or 120V AC single-phase power. These units are configured for precise fluid metering in chemical dosing, water treatment, and food processing. 3G Electric provides logistics support and access to multiple SKUs, allowing buyers to compare specifications and select the appropriate model for their process conditions. For plant engineers and maintenance managers, the key selection criteria include flow rate, discharge pressure, viscosity, temperature, solids content, and chemical compatibility. SEEPEX pumps are known for their gentle pumping action, which minimizes shear and maintains the integrity of the pumped medium. The progressive cavity principle also provides good suction lift and self-priming capability, which is useful in tank emptying and sump applications. The metering pumps in the 3G Electric catalog are designed for low-pulsation dosing, with a 1/2 hp or 3/4 hp motor and a 1 in MNPT connection on the larger models. The stainless steel housing and rotor construction offers corrosion resistance for many chemical and food-grade applications, while the Viton seal material provides compatibility with a range of oils, fuels, and chemicals. Titanium rotors are available on some models for additional corrosion resistance. These pumps are typically used in continuous or batch processes where accurate dosing is required, such as adding coagulants and flocculants in water treatment, dosing acids and bases in chemical production, and metering flavorings and additives in food processing. 3G Electric's role is to make these pumps available with multiple SKUs, provide specification data, and support global logistics so that maintenance and procurement teams can source the correct replacement or new unit. The catalog includes models with different MPNs, such as 500251044, 500251037, 500251032, 500250764, 500251039, 500239746, 500239741, and 500250760, each with specific motor and material configurations. Buyers should verify the exact MPN and specifications against their application requirements, including voltage, phase, connection size, and seal material. 3G Electric does not manufacture SEEPEX pumps but distributes them as part of its industrial equipment offering. For technical selection, SEEPEX provides sizing software and application engineering support, while 3G Electric focuses on availability, ordering, and delivery. The progressive cavity metering pumps in the 3G Electric catalog are suitable for industrial processes that require precise, repeatable dosing of fluids with varying viscosities and solids content. They are not intended for high-pressure applications beyond their rated discharge pressure, and proper installation with suction and discharge piping, valves, and controls is necessary for optimal performance. Maintenance typically involves checking stator wear, seal condition, and drive components, with replacement parts available through the distribution channel. 3G Electric ships globally and can provide multiple SKUs for comparison, allowing procurement specialists to evaluate options based on technical specifications and lead times.

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About SEEPEX

SEEPEX is a German manufacturer of progressive cavity pumps and associated systems, with a product history that includes the development of the first progressive cavity pump for industrial applications in the 1930s. The company's portfolio covers progressive cavity pumps for metering, transfer, and dosing duties, as well as macerators, control systems, and accessories. SEEPEX pumps are used in water and wastewater treatment, chemical and petrochemical processing, food and beverage production, pulp and paper, mining, and oil and gas. The progressive cavity pump design uses a single helical rotor rotating inside a double helical stator, creating sealed cavities that move axially to produce a continuous, low-pulsation flow. This geometry allows the handling of viscous, shear-sensitive, abrasive, and solids-laden media without emulsification or degradation. SEEPEX metering pumps are positive-displacement units that deliver precise volumetric dosing independent of discharge pressure, making them suitable for chemical dosing, polymer preparation, and additive injection. The pumps are available in various materials of construction, including cast iron, stainless steel, and higher-alloy options, with stator elastomers such as NBR, EPDM, Viton, and silicone to suit different media and temperatures. Drive options include fixed-speed and variable-speed motors, with nameplate voltages commonly 115V AC or 120V AC single-phase for smaller metering models, and three-phase for larger transfer pumps. Sealing arrangements range from single mechanical seals to cartridge and quenched seals, depending on the application. 3G Electric supplies SEEPEX progressive cavity metering pumps and related components globally. The current catalog includes multiple SKUs of 1/2 hp and 3/4 hp metering pumps with stainless steel housings, titanium or stainless steel rotors, and Viton seals, operating on 115V AC or 120V AC single-phase power. These units are configured for precise fluid metering in chemical dosing, water treatment, and food processing. 3G Electric provides logistics support and access to multiple SKUs, allowing buyers to compare specifications and select the appropriate model for their process conditions. For plant engineers and maintenance managers, the key selection criteria include flow rate, discharge pressure, viscosity, temperature, solids content, and chemical compatibility. SEEPEX pumps are known for their gentle pumping action, which minimizes shear and maintains the integrity of the pumped medium. The progressive cavity principle also provides good suction lift and self-priming capability, which is useful in tank emptying and sump applications. The metering pumps in the 3G Electric catalog are designed for low-pulsation dosing, with a 1/2 hp or 3/4 hp motor and a 1 in MNPT connection on the larger models. The stainless steel housing and rotor construction offers corrosion resistance for many chemical and food-grade applications, while the Viton seal material provides compatibility with a range of oils, fuels, and chemicals. Titanium rotors are available on some models for additional corrosion resistance. These pumps are typically used in continuous or batch processes where accurate dosing is required, such as adding coagulants and flocculants in water treatment, dosing acids and bases in chemical production, and metering flavorings and additives in food processing. 3G Electric's role is to make these pumps available with multiple SKUs, provide specification data, and support global logistics so that maintenance and procurement teams can source the correct replacement or new unit. The catalog includes models with different MPNs, such as 500251044, 500251037, 500251032, 500250764, 500251039, 500239746, 500239741, and 500250760, each with specific motor and material configurations. Buyers should verify the exact MPN and specifications against their application requirements, including voltage, phase, connection size, and seal material. 3G Electric does not manufacture SEEPEX pumps but distributes them as part of its industrial equipment offering. For technical selection, SEEPEX provides sizing software and application engineering support, while 3G Electric focuses on availability, ordering, and delivery. The progressive cavity metering pumps in the 3G Electric catalog are suitable for industrial processes that require precise, repeatable dosing of fluids with varying viscosities and solids content. They are not intended for high-pressure applications beyond their rated discharge pressure, and proper installation with suction and discharge piping, valves, and controls is necessary for optimal performance. Maintenance typically involves checking stator wear, seal condition, and drive components, with replacement parts available through the distribution channel. 3G Electric ships globally and can provide multiple SKUs for comparison, allowing procurement specialists to evaluate options based on technical specifications and lead times.

Common Applications

  • Water and wastewater treatment — SEEPEX progressive cavity metering pumps for dosing coagulants, flocculants, and disinfectants
  • Chemical processing — SEEPEX metering pumps with stainless steel housing and Viton seals for precise additive injection
  • Food and beverage production — SEEPEX progressive cavity pumps for gentle transfer of shear-sensitive ingredients and flavorings
  • Pulp and paper — SEEPEX metering pumps for dosing chemicals and additives in pulp processing and paper coating
  • Oil and gas — SEEPEX progressive cavity pumps for transferring viscous crude, slops, and produced water with solids
  • Mining — SEEPEX progressive cavity pumps for metering reagents and transferring slurries and tailings

Frequently asked questions

Common questions about SEEPEX from 3G Electric.

What are the key specifications of the SEEPEX progressive cavity metering pumps available from 3G Electric?

The SEEPEX progressive cavity metering pumps in the 3G Electric catalog include models with 1/2 hp or 3/4 hp motors, 115V AC or 120V AC single-phase power, stainless steel housings, and either titanium or stainless steel rotors. Seal material is Viton on most models. The 3/4 hp units feature a 1 in MNPT connection. Specific MPNs include 500251044, 500251037, 500251032, 500250764, 500251039, 500239746, 500239741, and 500250760. These pumps are positive-displacement, low-pulsation metering pumps designed for chemical dosing, water treatment, and food processing. Buyers should confirm the exact MPN and specifications for their application.

How does a SEEPEX progressive cavity metering pump differ from a diaphragm or peristaltic metering pump?

SEEPEX progressive cavity metering pumps use a single helical rotor and double helical stator to create moving sealed cavities. This design provides continuous, low-pulsation flow without valves or diaphragms in the metering element. Unlike diaphragm pumps, they can handle viscous and solids-laden fluids without clogging, and unlike peristaltic pumps, they do not rely on flexible tubing that requires frequent replacement. The progressive cavity principle also offers gentle handling of shear-sensitive media. However, they are generally not suitable for very low flow rates or high pressures compared to some diaphragm metering pumps. Selection depends on fluid characteristics, flow rate, pressure, and compatibility.

What materials of construction are used in SEEPEX metering pumps for chemical compatibility?

SEEPEX metering pumps are available with various materials to suit different chemicals. The models in the 3G Electric catalog feature stainless steel housings and either titanium or stainless steel rotors. Titanium rotors offer enhanced corrosion resistance for aggressive fluids. The stator elastomer options include Viton, which provides good resistance to oils, fuels, and many chemicals. Other stator materials such as EPDM, NBR, and silicone are available in the broader SEEPEX range. Seal material is typically Viton on the listed models. For specific chemical compatibility, consult the SEEPEX chemical resistance guide or contact 3G Electric with the fluid details. Proper material selection is critical for pump life and process safety.

Can SEEPEX progressive cavity metering pumps handle abrasive or solids-laden fluids?

Yes, progressive cavity pumps are often used for abrasive and solids-laden fluids because the moving cavities transport the medium with minimal turbulence and no valves to clog. However, abrasive solids will cause wear on the rotor and stator, so the pump should be selected with appropriate materials and operating speed. SEEPEX offers wear-resistant rotors and stators for such applications. In the 3G Electric catalog, models with stainless steel or titanium rotors and Viton stators can handle some solids, but for high abrasion, additional options may be needed. The maximum solids size and concentration depend on the pump geometry. Consult SEEPEX application guidelines for specific limits.

What is the typical maintenance schedule for a SEEPEX progressive cavity metering pump?

Maintenance for SEEPEX progressive cavity metering pumps primarily involves monitoring stator wear, which is the most common wear part. The stator should be inspected periodically for signs of wear, such as reduced flow or increased slip. Seal condition should also be checked, and the seal replaced if leakage occurs. Drive components, including the coupling rod and motor, require routine inspection. Lubrication of bearings and gearbox (if applicable) should follow the manufacturer's recommendations. In clean service, stators may last several years, while abrasive or chemical service may require more frequent replacement. 3G Electric can supply replacement stators, rotors, and seals for the models listed. Always follow SEEPEX maintenance instructions.

What voltage and phase options are available for SEEPEX metering pumps from 3G Electric?

The SEEPEX progressive cavity metering pumps currently listed by 3G Electric are available with 115V AC or 120V AC single-phase motors. The 1/2 hp models typically use 115V AC, while the 3/4 hp models use 120V AC single-phase. These voltages are common for small metering pumps in industrial and commercial settings. For other voltages or three-phase power, additional SKUs may be available through 3G Electric's catalog. Buyers should verify the nameplate voltage and phase against their electrical supply. If a different voltage is required, contact 3G Electric to check availability of alternative configurations or consider a variable-frequency drive for speed control.