SIWATEC

SIWATEC as a SEEPEX Alternative — Drop-in Replacement

SIWATEC offers its own range of German-manufactured progressing cavity pumps as a fully capable alternative to SEEPEX pumps. This is the result of decades of experience in supplying, servicing, and operating progressing cavity pumps in demanding industrial environments.

The key advantage: SIWATEC pumps are dimensionally compatible with the standard installation dimensions of SEEPEX pumps. Replacing a SEEPEX pump with a SIWATEC pump does not require modifications to the pipework or connection flanges — fit the pump, connect, and start. You save installation time, re-piping costs, and unplanned downtime.

Unlike ordering original SEEPEX, SIWATEC pumps are available from our own stock with shorter lead times and direct technical support in the Czech Republic and English. 

Why Choose a SIWATEC Progressing Cavity Pump

German-Manufactured

SIWATEC progressing cavity pumps are manufactured in Germany. German manufacturing standards mean precision tolerances, consistent component quality, and long service life — including in continuous-operation industrial environments.

Full Dimensional Compatibility with SEEPEX Installations

SIWATEC pumps are dimensionally compatible with the standard installation dimensions of SEEPEX pumps. Replacement requires no modification to the pipework system — no welding, no new flanges, no additional downtime.

Drop-in Replacement Without Re-piping

Need to replace a SEEPEX pump without re-routing pipework? A SIWATEC pump fits in place of the existing unit without civil or piping modifications. Installation takes hours, not days.

Spare Parts from Stock in Olomouc, Czech Republic

Stators, rotors, replacement shafts, and universal joint assemblies for SIWATEC pumps are held in stock in Olomouc, Czech Republic. You do not need to wait for international shipment — the most commonly required components are available immediately.

Shorter Lead Times

Compared with ordering original SEEPEX, SIWATEC pumps are available from our own stock. A shorter lead time means less time from decision to commissioning — critical for both planned and unplanned replacements.

Service and Technical Support in the Czech Republic

Technical support and service for SIWATEC pumps are provided directly from Olomouc, Czech Republic — without routing calls to an overseas manufacturer. SIWATEC services its own-brand pumps from the in-house workshop and on-site across the Czech Republic and Slovakia.

Technical Specification and Design of SIWATEC Pumps

SIWATEC pumps operate on the progressing cavity principle: an eccentric metal rotor turns inside an elastomeric stator. The interaction between rotor and stator creates sealed working chambers that transport the media uniformly from suction to discharge — without pulsation and without significant shear forces.

The progressing cavity principle is ideal for sludge media, viscous liquids, abrasive suspensions, and media with solids content. SIWATEC pumps are suitable for wastewater treatment plants (WWTPs), biogas plants, agricultural operations, chemical industry, and food processing.

The elastomeric stator is selected according to the chemical composition and temperature of the pumped media — NBR for standard sludge and water media, EPDM for oxidising media, and specialist elastomers for chemically demanding liquids. The correct elastomer selection directly affects stator service life and the total cost of ownership. When you contact us, SIWATEC will recommend the most suitable configuration for your application.

Spare Parts for SIWATEC Pumps — Stators, Rotors and Shafts

Parts availability determines the length of downtime in the event of a failure or planned maintenance. SIWATEC holds its own spare parts inventory for SIWATEC-brand progressing cavity pumps in Olomouc, Czech Republic — stators, rotors, and universal joint assemblies are available without waiting for international shipment.

For SIWATEC spare parts enquiries, provide the pump type designation and media specification — this enables accurate selection of the correct stator elastomer and maximises component service life.

Available Components

• Stator (NBR — standard)
• Stator (EPDM — for oxidising media)
• Rotor
• Replacement shaft
• Universal joint assembly
• Mechanical seal

SEEPEX vs. SIWATEC — What You Need to Know

SIWATEC offers its own-brand progressing cavity pumps — manufactured in Germany — as a dimensionally compatible alternative to SEEPEX, suitable for replacement without pipe modifications. When does a SIWATEC pump make sense? If you are looking for a more cost-effective alternative to SEEPEX, if lead time matters, or if you want spare parts available locally in the Czech Republic.

• Shorter lead time compared with importing SEEPEX
• Spare parts (stators, rotors) in stock in Olomouc, Czech Republic
• Dimensionally compatible — replacement without pipework modification
• German-manufactured with direct technical support in the Czech Republic

Service and Technical Support for SIWATEC Pumps

SIWATEC services its own-brand progressing cavity pumps directly from its in-house service centre in Olomouc, Czech Republic, and through on-site field service across the Czech Republic and Slovakia. 

Frequently Asked Questions — SIWATEC Pumps

Is the SIWATEC pump truly compatible with SEEPEX dimensions?

SIWATEC progressing cavity pumps are dimensionally compatible with the standard installation dimensions commonly used in SEEPEX pump installations. Replacing an existing SEEPEX pump with a SIWATEC pump does not require modification to the pipework or connection flanges. To confirm compatibility with your specific installation, contact us.

What is the quality of stators in SIWATEC progressing cavity pumps?

SIWATEC progressing cavity pumps are manufactured in Germany — elastomeric stators are produced to a precision corresponding to German manufacturing standards. Elastomer selection (NBR, EPDM or specialist) depends on the chemical composition and temperature of the pumped medium. The correct selection directly affects stator service life. SIWATEC will recommend the most suitable elastomer for your application — contact us with a description of the medium and operating conditions.

Where are SIWATEC progressing cavity pumps manufactured?

Pumps under the SIWATEC brand are manufactured in Germany. Direct availability from our own stock in Olomouc, Czech Republic and technical support in Czech and English distinguish these pumps from purely imported products.

How quickly are spare parts available for SIWATEC pumps?

SIWATEC holds its own spare parts inventory for SIWATEC-brand progressing cavity pumps at its warehouse in Olomouc, Czech Republic. The most commonly required components — stators, rotors, replacement shafts, and universal joint assemblies — are available without waiting for international shipment. For less common configurations, parts are sourced from the central stock and supplied on request. Contact SIWATEC with your pump type designation.

Can I replace a SEEPEX pump with a SIWATEC pump without modifying the pipework?

Yes, in typical installations the replacement of a SEEPEX pump with a SIWATEC pump can be carried out without pipework modifications. SIWATEC pumps are dimensionally compatible with the standard installation dimensions of SEEPEX pumps. Exact compatibility with your specific installation is confirmed on the basis of technical parameters — contact us or fill in the enquiry form.

What media are SIWATEC progressing cavity pumps suitable for?

SIWATEC progressing cavity pumps are suitable for sludge media (raw sludge, activated sludge, thickened sludge at WWTPs), viscous liquids, abrasive suspensions and media with solids content, digestate at biogas plants, agricultural applications, food processing media, and chemical applications (with correct elastomer selection). Typical installations include wastewater treatment plants (WWTPs), biogas plants, agricultural operations, chemical industry, and food processing.