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vapor lock and a loss in performance. Inlet pressure must
not exceed 30 psi [2.1 bar] maximum.
• If a check valve is installed in the plumbing it must have a
cracking pressure of no more than 2 psi [.14 bar].
NOTE: SHURflo does not recommend the use of metal fittings or
rigid pipe to plumb the inlet/outlet ports. Standard plastic male
and female threaded fittings can be acquired at commercial
plumbing supply stores. SHURflo also distributes Swivel Barb
Fittings, and special fittings through our dealers (Form
#
07-010-
0011).
• 3/8" Female NPT models: In some cases, the ports may require
a suitable thread sealer applied sparingly. DO NOT over-tighten,
max. torque 3.7 ft\Lb (45 in\Lb ) [5 Nm].
• 1/2" Male threaded models: Are intended to be used with
SHURflo Swivel Barb Fittings which seal with an internal taper
when hand tightened. Standard 1/2" NPT fittings may be used
when tightened to a max. torque of 3.7 ft\Lb (45 in\Lb) [5 Nm].
CAUTION: Sealers and Teflon tape may act as lubricant causing
cracked housings or stripped threads due to over tightening.
Care should be used when applying sealers, it may enter the
pump inhibiting valve action, causing no prime or no shut-off.
Failures due to foreign debris is not covered under warranty.
• Snap-Lock models: The slide fittings are open when the slide is
moved out toward the switch. Fittings should be inserted flush
against housing port before the slide is moved to the locked
position. Fittings of Nylon or Polypropylene are available in
various sizes.
ELECTRICAL
CAUTION: Electrical wiring should be performed by a qualified
electrician, in accordance with all local electrical codes.