This compact and economical valve performs four important functions for your LMI pump:
- Diaphragm type anti-syphon protection
- Back pressure
- Priming aid/line drain
- Pressure Relief
Priming with the 4FV is simple and is achieved by turning of the pressure relief knob (black). A recommended accessory for every LMI electromagnetic pump.
The injection check valve prevents backflow from a treated line. Fitted at the injection point, it acts as a non-return valve and also creates artificial counter-pressure, preventing any siphoning.
Bleed valve for outgassing products, e.g. sodium hypochlorite / liquid bleach and H2O2 / hydrogen peroxide, with permanently adjustable bleed.
- back pressure relief valve 1.4 bar
- line depressurisation
Our maintenance kits contain the most important wear parts of a dosing pump (e.g. diaphragms, valve seats, valve balls, seals) and enable preventive maintenance of the dosing pumps.
Our dosing pumps are known for problem-free, continuous operation. As a precautionary measure, however, we recommend the regular replacement of wear parts - the frequency of these measures depends on the operating conditions. Our suggestion for trouble-free operation: anual maintenance.