The BPG Modular Test bench is an equipment designed for high flexibility demands on the test of residential diaphragm meters from size G1.6 to G6 and with extension design up to G25. Scalability and modularity are their differential features if compared with the traditional machines.
The Sonic Nozzle is used as a reference standard for establishing and measuring the mass flow rate of gas at critical velocity. At critical velocity , the mass flow-rate of gas flowing through the nozzle is the maximum possible for the existing upstream conditions. Because it has no mobile parts, it is very stable, stress-resistant, and can be used repeatedly, with very low maintenance.