Dwyer chemical flow meter with adjustment knob is used on my brands of truckmounted carpet cleaning machines.
Marketed under the following part numbers:
HydraMaster PHY074-020 and 000-074-020
Pick up at Steam Brite & save 1/2 the shipping charge
Scales are easy to read - The front scale location and white background provides excellent visibility. The direct reading scales are hot stamped into the plastic and will not wear off. Mid-range calibration is established with a master flowmeter. Accuracy is ±5% of full scale for VFA models, ±3% for VFB. Scales average 2" long on the VFA models, 4" long on VFB. This model will show readings between 1.4 to 10 gallons per hour flow. The flow rating is only displayed while the cleaning operators is using water.
Durable and attractive construction - The machined acrylic bodies of the Visi-Float® flowmeters are practically unbreakable. Fabrication is backed by over 60 years of experience in acrylic instrument machining. The tapered bore is precision machined to a smooth surface that provides perfect visibility of the indicating float. The VFA and VFB models are available with either brass or stainless steel inlet and outlet connections and are tapped for 1/8" NPT thread. All standard models employ Buna-N o-rings for leak proof operation and are available with either back or end connections for horizontal or vertical piping. Precision metering valves in brass or stainless steel are available for most VFA and VFB models.
Easy installation - All Visi–Float® flowmeters have metal mounting inserts on rear for panel mounting. They can also be supported directly by system piping.