COMPACT PROVERS

摘要

A compact prover (10) suitable for determining the accuracy of a high flow turbine flowmeter. The prover (10) includes two piston and cylinder arrangements (12, 14) which are similar in most respects. Each arrangement (12, 14) includes a stainless steel cylinder (16) with an inlet (18) and outlet (20). The inlets 18 are both connected to a common fluid supply, and the outlets (20) are also both connected to a common fluid output. Each cylinder (16) locates a respective piston (22), and the pistons (22) are interconnected in series by a piston rod (24). Each piston (22) has a selectively openable valve (26).