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Bild vergrößernEXtronic® Membrandosierpumpe

Solenoid driven diaphragm metering pump for metering of liquids in gas-explosion endangered areas and in mining applications.

  • Capacity range 0.19 - 60 l/h, 25 - 2 bar.
  • Micrometer adjustment knob for stroke length
  • For outgassing media, self-venting liquid ends made of plexiglass (NS) and PVC (PS)
  • Delivery unit with the proven DEVELOPAN® metering diaphragm with Teflon coating
  • Liquid end materials: plexiglass, polypropylene (PP), PTFE Teflon®, stainless steel, material no. 1.4404, and SB for flammable media
  • Type 2501 SSM/SBM with diaphragm failure messaging, e. g. for the use in gas odorisation
  • Control inputs “external contact”, “analogue” and “potential-free ON/OFF” are available as EXBb intrinsically safe – approved according to EN 50020
  • Control type “internal”: Stroke length adjustment 1:10; stroke frequency adjustment 1:25, total adjustment range 1:250
  • Control type “external contact”: Stroke length adjustment 1:10; stroke frequency control 0 – 100 %, depending on the external switching contacts
  • Control type “analogue”: Stroke length adjustment 1:10; stroke frequency control 0 -100 %, proportional to the analogue signal 0/4 - 20mA
  • The short-stroke solenoid and the complete pump control are integrated in the pump housing. Protection against contact and moisture according to DIN 40050 is IP 65, also with opened front cover
  • Tested and approved according to the harmonised EU regulations of EN 50014/50018 for the type of protection “flameproof enclosure”
  • Highest degree of protection of this type of protection. Apart from the EU countries, this approval is also recognised by many other international authorities
  • ATEX-compliant
  • Exact adjustment and high level of reproducibility thanks to micrometer adjusting knob for stroke length
  • Reliable operation thanks to compensation even in case of supply voltage fluctuations. Switching from 50 Hz to 60 Hz operation is executed automatically
  • Further range of application thanks to operating voltages of 500 V, 230 V, 115 V
  • Easy integration into processes thanks to three different types of control
  • Suitable for outgassing media thanks to self-venting liquid end
  • Comprehensive range of Ex-protected accessories and pump accessories
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Accessories (3)

Accessorie Product details
Injection Valve

Used for generating pressure and preventing backflow.

Back Pressure Valve

Used to generate a constant back pressure for precise dosing and/or to protect against overdosing, or for dosing accuracy with an open discharge or a positive pressure on the suction side. Used with pulsation dampeners to produce low-pulsation dosing.

Foot valve

For connection at the end of the suction line. Used to create pressure and to prevent return flow. Important: Injection valves are not intended as completely sealed units.


Spare parts (2)

Spare part Product details
Replacement diaphragm Ersatzmembran

Replacement diaphragm for diaphragm metering pumps.

Spare parts kit Ersatzteilset

The replacement part kit in general includes the wear parts of the liquid ends. Metering diaphragm, suction valve, pressure valve, valve balls, gasket set (for diaphragm metering pumps).