Nova-Tech LMI Series AA-B-C-E-J-P Metering Pumps - Manual (Page 9)

9
Tubing Connections
Inlet and outlet tubing or pipe sizes must not be reduced. Make
certain that all tubing is SECURELY ATTACHED to fittings prior
to start-up (see Section 4.3, Tubing Connections). ALWAYS use
LMI supplied tubing with your pump, as the tubing is specifically
designed for use with the pump fittings. It is recommended that
all tubing be shielded 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.
Fittings And Machine Threads
All fittings should be hand-tightened. An additional 1/8 - 1/4 turn
after the fitting contacts the seal ring 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 seal rings or 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 as well as stainless steel liquid end
connections.
Plumbing
Always adhere to your local plumbing codes and requirements.
Be sure installation does not constitute a cross connection. Check
local plumbing codes for guidelines. LMI is not responsible for
improper installations.
Back Pressure/Anti-Syphon Valve
If you are pumping downhill or into low or no system pressure,
a back pressure/anti-syphon device such as LMI’s Four Function
Valve should be installed to prevent overpumping or syphoning.
Contact your LMI distributor for furthur information.
CAUTION
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CAUTION
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CAUTION
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CAUTION
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