Sera GmbH
sera - Piston Diaphragm Pumps
FromSera GmbH
sera Piston Diaphragm Pumps are leak-free oscillating displacement pumps designed for the dosing of volumes up to 1500 l/h and up to maximum 50 bar - depending on flow capacity. They are an ideal combination of the high supply pressure of a piston pump and the perfect leak-proof diaphragm pump.
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Field of application:
- Flow free mediums with:
- aggressive
- abrasive
- viscous
- radioactive
- flammable
- odorous
- or toxic characteristics
Performance characteristics:
- Leakage free
- Highest dosing accuracy
- Dry run safety
- High quality materials
- Continuous operation with minimum maintenance
- Long operating life
- Easy to operate
- Integrated safety device against overpressure
The following designs of sera piston diaphragm pumps are available:
R409.2-...KM (from 7,5 l/h up to 190 l/h)
R410.2-...KM (from 30 l/h up to 850 l/h)
R511.1-...KM (from 100 l/h up to 1,900 l/h)
A suitable material is available for each dosing medium!
Appropriate materials are selected for single and double
valves, valve balls, valve seals and diaphragms.
Three-phase drive motor
- High operational safety by multi-layer diaphragm technology
- Indication of diaphragm condition by integrated diaphragm rupture monitoring (visual as standard design / electrical available as option)
- Integral overpressure safety device
- Excellent priming characteristics without additional equipment
- Type examination for ATEX-range guarantees certified safety
- Wide range of application by an extensive programme of material combinations and accessories
- Wide range of applications thanks to a performance between 65 l/h and 1,900 l/h with counter pressures of up to 220 bar
- Exact flow respectively dosing rates by variable eccentric drives with a harmonic motion sequence
- High operating reliability thanks to a hydraulically driven multi-layer diaphragm made of high-quality material
- Display of the diaphragm state by an integrated diaphragm monitoring (optically for standard/ electrical option)
- Safe against overpressure by an internal pressure relief valve
- Wide field of applications thanks to extensive accessories as well as an optional design for explosion-proof applications following API Standard 674/675
