Series J Heavy Duty Provers

The Seraphin® Series J is a graduated neck, bottom drain vessel built to N.I.S.T. Handbook 105-3 Standards, OIML R-120, Measurement Canada and API Manual of Petroleum Measurement Standards Chapter 4. The Series J prover, when mounted on a skid becomes an efficient method for measuring home heating oil, diesel oil or other meters requiring a medium flow rates from 40 gpm (150 lpm) to 1000 gpm (500 lpm).