Nova-Tech LMI Roytronic Series A Metering Pump - Manual (Page 4)

4
PRECAUTIONS
1.0 PRECAUTIONS
The following precautions should be taken when working with LMI metering pumps.
Please read this section carefully prior to installation.
Protective Clothing
ALWAYS wear protective clothing, face shield, safety glasses and gloves when working
on or near your metering pump. Additional precautions should be taken depending on
the solution being pumped. Refer to MSDS precautions from your solution supplier.
Water Pre-Prime
All LMI pumps are pre-primed with water when shipped from the factory. If your solu-
tion is not compatible with water, disassemble the Pump Head Assembly. Thoroughly
dry the pump head, valves, seal rings, balls and Liquifram
™ (diaphragm). Reassemble
head assembly tightening screws in a crisscross pattern. Refill the pump head with the
solution to be pumped before priming the pump. (This will aid in priming.)
Liquid Compatibility
CAUTION: The evaluation performed by UL was tested with water only. LMI pumps
are tested by NSF for use on muriatic acid and sodium hypochlorite. Determine if the
materials of construction included in the liquid handling portion of your pump are ad-
equate for the solution (chemical) to be pumped. Always refer to the solution supplier
and the LMI Chemical Resistance Chart for compatibility of your specific LMI metering
pump. Contact your local LMI distributor for further information.
Tubing Connections
Inlet and outlet tubing or pipe sizes must not be reduced. Outlet tubing size must not be
increased. Make certain that all tubing is SECURELY ATTACHED to fittings prior to
start-up (see Section 3.3, Tubing Connections). ALWAYS use LMI supplied tubing with
your pump, as the tubing is specifically designed for use with the pump fittings. It is rec-
ommended that all tubing be shielded and secure to prevent possible injury in case of
rupture or accidental damage. If tubing is exposed to sunlight, black UV resistant tubing
should be installed. Check tubing frequently for cracks and replace as necessary.
Vinyl Tubing
Your carton may contain a roll of clear vinyl tubing; this is only for connection to the
return line of the FastPrime
™ Head and must not be used as discharge tubing.
Fittings and Machine Threads
All fittings should be hand-tightened. An additional 1/8 - 1/4 turn after the fitting is snug
may be necessary to provide a leak-proof seal. Excessive overtightening or use of a pipe
wrench can cause damage to the fittings, seals, or pump head.
All LMI pumps have straight screw machine threads on the head and fittings and are
sealed by the O-rings. DO NOT use Teflon
® tape or pipe dope to seal threads. Teflon ® Tape
may only be used on the 1/2" NPT thread side of the Injection Check Valve, the stainless
steel liquid end connections, or if piping is directly connected to the pipe threads of the suc-
tion or discharge fittings.