Nova-Tech LMI Roytronic Series A Metering Pump - Manual (Page 12)

12
INSTALLATION
3.5 Four-Function Valve Installation
To install a 4-FV, the 4-FV Fitting and Coupling Nut should be
assembled with the appropriate cartridges into the discharge port
of the pump. Use a 13/16” or 20 mm socket to tighten fitting. Tight-
ening to 50 inch-pounds is recommended. Do not over tighten.
To assemble the Four-Function Valve Body, assemble the coupling
nut and the threads at the bottom of the body. Firmly hand tighten
the body in the desired orientation. Next, insert the ¼” tubing
through the Bleed Nut. Ensure that about ¼” (6 mm) of tubing is
protruding through the tip of the Bleed Nut. Firmly hand tighten
the Bleed Nut in the hole on the side of the 4-FV. This tubing should
be routed back to the supply tank. To ensure proper function of the
priming function, the end of this tubing should not be submerged
in the solution..
This return line tubing must be secured to ensure pumped solution will safely return to supply
tank.
3.6 FastPrime™
The FastPrime ™ Head is equipped with a valve that allows for opening the head to at-
mospheric pressure. When installing a pump equipped with a FastPrime ™ Head connect
the 3/8" outer diameter clear vinyl tubing provided with the pump to the barbed nozzle.
Route the vinyl return line back to the solution tank. This tubing must not be submerged
in the solution.
Four-Function Valve Tubing Connection
Discharge
1/4"
Through
FastPrime TM Valve
FastPrime™ Head
3/8" Clear Vinyl Tubing
1/4" Tubing
Four-Function
Valve Body
4-FV Fitting
Coupling Nut
To Pump Head
To Solution
Tank or Drum
Bleed Nut