Max Machinery 220, 221 and 222 FLOW METERS - Manual (Page 3)

A
PPLICATIONS
:
Although originally designed for the metering of rigid urethane foam components, the
Model 220, 221 and 222 Flow Meters have found wide application in the following areas:
• Unsaturated polyester resins, especially in spray-up applications.
• Other non-corrosive chemicals and resins of high viscosity.
• Lubricating oils and other high viscosity petroleum products at low flow rates.
• Metering of silicone and tin catalyst components in flexible urethane foam production
systems.
• Metering of pre-polymer and catalyst components for semirigid urethane foam crash-pad
and other automotive trim component production.
• Other applications where conventional flow metering systems are affected by product
viscosity or where the flow rate to be measured is below the minimum recommended
flow of conventional positive displacement flow meters.
• High-pressure applications where conventional flow metering devices are not applicable.
For applications outside the area of rigid and flexible urethane foams or petroleum products,
it is recommended that the factory be consulted regarding the material to be metered for spe-
cific application assistance.
S
PECIFICATIONS
:
MODEL 220 MODEL 221 MODEL 222
Maximum case pressure
bar (psi) (standard) 105 (1,500)
(high pressure) 210 (3,000)
Filtration required
(mesh minimum) 60
(mesh recommended) 80 - 100
Port Size, inches (standard) 1/2 NPTF (optional) 7/8-14 SAE
272 Transmitter output 10 V F.S.
276 Transmitter output 4-20mA
284 Transmitter output 10.97 pulses/cc 4.26 pulses/cc 2.11 pulses/cc
Displacement (cc/revolution) 9.12 23.53 47.4
NOTE: Fluid acceleration should be limited to 75 liters per minute per second to prevent de-cou -
pling the transmitter from the drive magnet. This limitation is due to the inertia of the transmitter
magnet and rotor system and is an inherent characteristic of any magnetically coupled device.
220-000-350 © 2004 Max Machinery, Inc. Page 3
Applications, Specifications
Discontinued