Installation, 8 foot valve/suction tubing installation – Nova-Tech LMI Roytronic Series A Metering Pump User Manual

Page 14

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14

INSTALLATION

Use Ceramic

Weight

2.0 in. (50 mm)

for Sediment Accumulation

Foot Valve

Tilted Sideways WILL NOT PRIME

INCORRECT

Foot Valve Must

Remain Vertical

CORRECT

3.8

Foot Valve/Suction Tubing Installation

The Foot Valve acts as a check valve to keep the pump primed in suction lift applications.

The foot valve is designed to be submersed in the solution tank or drum and must sit in
a vertical position at the bottom. Position approximately 2 inches (50 mm) off the bottom
if the tank or drum contains sediment.

The ceramic weight, when installed, helps position the foot valve in a vertical position.

1. Attach the foot valve to one end of the suction tubing (see Tubing Connections, Sec-

tion 3.3).

2. Slide the ceramic weight over the tubing end until it contacts the top of the foot valve

coupling nut.

3. Place foot valve and tubing into the solution tank. Check that the foot valve is vertical

and approximately 2 inches (50 mm) from the bottom of the tank or drum (see illus-
tration). Connect the other end of the tubing to the suction side of the pump head
(bottom side) (see Tubing Connections, Section 3.3).

Pump models

equipped with

high-viscosity

liquid ends are

not equipped

with foot valves.

Flooded suction

is recommended.

A 1/2" NPT

connector is

included for

flooded suction

installations.

Return Lines

Must Not Be

Submerged

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