SEKO Kosmo MM2 Series MM2H157G31C4S800 PTFE Maintenance Kit Compatible Pump Replacement Parts Kit for Pump Maintenance and Repair

SEKO pump diaphragms serve as high-quality replacement membranes specifically designed for SEKO metering and dosing pumps. This includes models from the Spring MS1 series, Kosmo MM2 series, and AKS electromagnetic series. Crafted from premium materials such as pure PTFE, PTFE combined with EPDM, and other high-strength composite membranes, these diaphragms provide outstanding chemical resistance, extended service life, and dependable sealing performance. They are well-suited to meet the rigorous demands of industrial dosing applications.

The SEKO MS1 series consists of mechanical diaphragm metering pumps that utilize a spring return mechanism within a single aluminium housing. Diaphragm sizes in this series range from 64mm to 165mm in diameter. It offers flow rates between 5.5 and 460 liters per hour, capable of operating under pressures up to 10 BAR. Popular models in this series include MS1C65A, MS1C165B, MS1A064A, MS1C138Q, MS1A094A, and the MS1C138 variants. The standard motors supplied range from 0.18 to 0.37 KW, featuring IP55 protection.

The Kosmo MM2 series, exemplified by models such as the MM2H157G31C4S800, is a motor-driven mechanical diaphragm pump that incorporates a mechanical return device. It can achieve flow rates of up to 1000 liters per hour and maintain pressures as high as 4 Bar. The diaphragm diameter for this series is 157mm. Construction materials for the liquid end include PVC, SS316L stainless steel, and PVDF, with PTFE diaphragms complemented by FPM or EPDM seals to ensure durability and chemical compatibility.

The AKS series of electromagnetic diaphragm pumps, including models like the DMS300ASK803, utilize pure PTFE diaphragms that are compatible with a broad range of chemicals. These diaphragms boast an impressive service life exceeding five years, which drastically reduces maintenance demands and minimizes downtime for end-users.

Whether utilized as original equipment manufacturer (OEM) replacements or during routine maintenance, SEKO pump diaphragms consistently provide the precision, reliability, and long-lasting performance essential for critical chemical dosing and fluid handling operations.

Our product line offers premium material options to meet a variety of chemical compatibility needs. Customers can choose from pure PTFE, PTFE combined with EPDM composite, and high-strength composite membranes, ensuring optimal performance for different applications.

Pure PTFE diaphragms provide almost universal chemical resistance, making them suitable for use with highly aggressive chemicals. These diaphragms boast a service life that exceeds five years, enhancing durability and reliability.

The PTFE+EPDM composite diaphragms merge the chemical inertness of PTFE with the flexibility and sealing capabilities of EPDM. This combination ensures excellent performance where both chemical resistance and material flexibility are required.

Designed for longevity, the PTFE diaphragms deliver over five years of dependable operation, helping to minimize maintenance intervals and reduce equipment downtime significantly.

Available in a broad range of diameters — from 60mm to 165mm — these diaphragms are compatible with various SEKO pump models, providing versatility and ease of integration.

Constructed to withstand harsh chemical environments, these diaphragms resist corrosion caused by acids, alkalis, and solvents, ensuring sustained performance under demanding conditions.

Each diaphragm is manufactured with precision to meet the exact specifications required for SEKO MS1, MM2, and AKS series pumps, guaranteeing a perfect fit and optimal functionality.

Moreover, the diaphragms are compatible with multiple pump series, including Spring MS1, Kosmo MM1/MM2, and AKS electromagnetic series pumps, offering flexibility across different equipment types.

By using PTFE diaphragms, the need for frequent replacement cycles is greatly reduced, leading to lower maintenance costs and enhanced operational efficiency.

Finally, these diaphragms are engineered to ensure reliable metering accuracy, making them ideal for precise chemical dosing in critical industrial applications.

This involves the chemical dosing necessary for effective flocculation, as well as the adjustment of pH levels and disinfection processes to ensure clean and safe water.

Accurate metering of various chemicals such as acids, alkalis, solvents, and other aggressive substances is crucial in chemical processing operations.

Chemicals are dosed to inhibit scale formation and control corrosion in cooling water systems, thereby enhancing operational efficiency and equipment longevity.

Antiscalants and other chemical additives are precisely dosed to protect membranes and maintain the performance of reverse osmosis systems.

Proper dosing of chlorine and pH-adjusting chemicals is essential to maintain water quality and safety in swimming pools and spas.

The addition of chemicals with high precision is vital in various production processes within industrial manufacturing.

Sanitary chemical dosing is performed using materials that are compatible with food and beverage applications to ensure safety and quality.

Precise metering of active ingredients and process fluids is critical to maintain product efficacy and consistency in pharmaceutical production.

Chemical injection plays a key role in the production and processing stages within the oil and gas industry.

Oxygen scavengers and other chemicals are dosed to treat boiler feed water, preventing corrosion and ensuring system reliability.