Our core competence ... Dosing Feeding Compressing ...for more than 60 years

sera as a third-generation family-owned and proprietor-managed business is now headed by Dipl.-Wirtsch.-Ing. Carsten Rahier. Backed by best tradition sera is developing innovative products which are exactly tailored to market requirements for a variety of industries. As leading manufacturer of dosing pumps, dosing systems and diaphragm compressors sera runs representative offices all over the world and a subsidiary in Great Britain. £ Chairman and Managing Director C. Rahier Seybert & Rahier GmbH + Co. Betriebs-KG More than 60 years expertise in dosing, feeding and compressing Customer and quality...

What we are known for as well System provider with decades of experience and Know-how sera see themselves as a world-wide system provider for compressing and dosing equipment and look back on many years of experience for impurity-free and oil-free compressing gases of any kind as well as in solving customer-specific requirements for dosing and feeding free-flowing mediums. For decades, the name sera has stood for: • Product quality • Short delivery periods • Robust and long-lived products • Faithfulness to deadlines • Optimal customer-oriented engineering • Very good value for money • Flexibility...

Gas pump type series R 409.2 eG £ Controllable gas pump type series C 409.2 eG £ Gas pumps for oil-free and impurity-free delivery and dosing of gases in lower pressure and performance ranges Product features • High-quality materials • Sturdy • Chemical-resistant • Long-life • Suitable for continuous operation • Low-maintenance • Integrates in fully automatic processes • Controllable delivery (manual and automatic) • Intelligent (can be directly selected /C range) • Leakage-free (< 10-3 mbar l/s) • Compression free from oil and solid particles • ATEX designs Application range Delivery and dosing...

£ Multi-layer diaphragm gas pump £ Single diaphragm gas pump Gas pumps for laboratories, analysis and industrial applications Specific product features • Long diaphragm service life • Adjustable stroke volume • Materials tailored to specific applications • Suitable for dry and moist gases Performance range Delivery rate at atmospheric pressure: up to 4000 Nl/h* Pressure: up to 21 bar (abs) Vacuum: up to 400 mbar (abs) Gas temperatures: up to 150°C *per pump head Specific product features • PTFE diaphragm, 3-layer • Extremely long service life • Diaphragm rupture signalling • Adjustable stroke...

£ Controllable gas pump type series C 409.2 eG £ Combination gas pump RK 409.2 eG/R 409.2 eG/RK 409.2 eG Gas pumps for laboratories, analysis and industrial applications Specific features of the electronic control • Manual operation • Manual stroke frequency adjustment • External ON/STOP • Pulse operation • Pulse - stepping down/up • Pulse memory • Analog operation 0/4 - 20 mA • Speed control/Slow Mode • 3 LEDs for status indication • Multi-line illuminated display • Plain text operating messages • Plain text fault messages • Lifting frequency indication • Operating hours counter • Password protection...

£ Metal diaphragm pump type series RK 411.1-MM 7 Metal diaphragm pumps for liquefied petroleum gases (LPG) Product features • High-quality materials • Long-life • Suitable for continuous operation • Low-maintenance • Integrates in fully automatic processes • Controllable delivery (manual and automatic) • Leakage-free (< 10-3 mbar l/s) • ATEX designs • Multi-layer metal diaphragm • Diaphragm rupture signalling Application range Delivery and dosing of flammable, corrosive, inert and toxic liquefied gases Application range Delivery rate: up to 150 l/h * Pressure: up to 500 bar Temperatures: up to...

Metal diaphragm compressor for oil-free and impurity-free compression of gases in all research and industry applications Metal diaphragm compressor type series MV4 £ Product features • Oil-free and impurity-free compression • Low noise level • Long-life • All gas-contacting parts from stainless steel • Controllable flow rate • Easy maintenance • Space-saving design • Type tested acc. to ATEX • No need to relieve the pressure for starting Application range Compression of flammable, corrosive, inert, toxic and radioactive gases Metal diaphragm compressor system £ incl. control system type series...

Metal diaphragm compressor Performance and application range Application range • Suitable for indoor and outdoor installation at ambient temperatures from -35°C bis +50°C • Suitable for installation in the zones 1 and 2 and outside potentially explosive areas Performance range Delivery rate: up to 1000 Nm3/h* Final pressure: up to 500 bar (abs) Suction pressure: from 0.5** bar (abs) up to 500 bar (abs) Gas temperatures: up to 200°C * depends on the suction and final pressure and on the gas type. ** depends on the compressor design. Compression of: • Hydrogen • Oxygen • Nitrogen • Ethylene • Propylen...

Metal diaphragm compressor, vertical type series MV3 £ Metal diaphragm compressor Types Single-stage compressors / vertical configuration Type series: MV1 through MV4 Suction pressure: min. 1 bar (abs) Final pressure: max. 500 bar (abs) Compression ratio: up to 15 Single-stage compressors / horizontal configuration Suction from vacuum Type series: MV5 through MV6 Suction pressure: min. 0,35 bar (abs) Final pressure: max. 15 bar (abs) Compression ratio: up to 15 Metal diaphragm compressor, horizontal type series MV5 £ 10

¥ Metal diaphragm compressor system type series MV3 II K ¥ Metal diaphragm compressor system type series MV4 III K Metal diaphragm compressor Types 2-stage compressors / vertical configuration Type series: MV 2 IIK through MV 4 IIK Suction pressure: min. 1 bar (abs) Final pressure: max. 500 bar (abs) Compression ratio: up to 15/stage 3-stage compressors / vertical configuration Type series: MV 2 IIIK through MV 4 IIIK Suction pressure: min. 1 bar (abs) Final pressure: max. 500 bar (abs) Compression ratio: up to 15/stage 2-stage compressors / V-configuration Type series: MV5 II Suction pressure:...