Dwyer VFA-1-BV is a Visi-Float® Acrylic Flowmeter with an accuracy of 5% of FS for VFA and 3% of FS for VFB. It is compatible with gases and liquids and can be mounted in a vertical position. The wetted materials include acrylic plastic, Buna-N O-ring, nickel plated brass (standard), and stainless steel (optional). The pressure limit is 100 psig (6.9 bar) @ 150°F (65°C) without a valve and 100 psig (6.9 bar) @ 120°F (48°C) with a valve. The process connection is 1/8" female NPT, with 1/4" NPT back connections or 3/8" NPT end connections available for VFB ranges 85 and 86. Scales are 2" for VFA and 4" for VFB.