Pump Test Meter Flow Meter for Fire Pump Meter Gerand’s product line consists of Venturis, Indicators (orifice type) and Ball valve-Venturis (one-piece unit, fixed Venturi and valve) manufactured by Gerand and meters used to balance the hydronic and air systems. Venturis and Indicators are furnished with a set of meter fittings (nipples, valves and quick […]