• Placka Instruments India Private Limited (Shreyas Instruments Private Limited)

Air Filter Pressure Regulators

Placka Instruments India offers Midi-Air Filter Pressure Regulators. The air-actuated instruments and equipments work at their best for a long period when fed with clean dry air at a constant prescribed pressure. Placka MPR series air filter-cum-pressure regulator removes completely the moisture and dust particles, and provides the exact pressure constantly at varying air demands. This economically priced unit is extensively used for process control instruments, air actuated control valves, cylinders and other equipments, not requiring large bowl capacity. Operation: the primary air through the inlet port passes through the filter element, leaving down the contaminants in the bowl. When the knob is adjusted suitably, the springs act on the diaphragm, which in turn actuates the main valve to allow the pure secondary air at a particular pressure to the outlet. The main valve is supported between the relief valve and the main valve spring, eliminating the need for stem guiding. Toggle action between main valve and relief valve completely eliminates the alignment problems and thus, erratic output pressure. Regulation characteristics: the secondary pressure at the bottom of the diaphragm balances against the set position of the main spring to keep the main valve at the adjusted position. When the secondary pressure rises above the set point, it pushes the diaphragm away from the relief valve and the excess air finds its way to atmosphere through the bleed hole.