Rotary piston meter has a cast inlet outlet section with screw fastening for a cartridge type meter, the design of the cartridge and rotary piston meter being such that meter service life is extended

摘要

Meter has a meter housing (1) with inlet (2) and outlet (3) and a cartridge housing (40) containing a rotary piston meter. Each half of a ring piston (within the cartridge) has an inlet and outlet and around the measurement chamber (10) is an inlet space (45) that connects the inlet (2) with the inlet openings. Similarly an outlet space (46) connects an outlet opening to the cartridge bottom (50).