Shurflo 800X-X0X-XXX Installation Manual

INDUSTRIAL PUMP 8000 SERIES

Installation and Operation Manual

SHURflo offers various pump models for different applications. The
information outlined by this manual is general, and not specific to all 8000
series pumps. Be certain the pumps' materials will be compatible with the
fluid being pumped. 8000 series pumps are intended for intermittent or
continuous duty when the proper operating criteria are met. Information
outlining specific thermal limits, loads, flow data, and other technical
information for particular models are available. If unsure of the chemical
compatibility with a given elastomers, or the motors’ intended design,
please call SHURflo for assistance.

CAUTION: "Intermittent Duty" is defined as: Operated and/or frequently started

within a period of time that does not cause the motor to reach its maximum
thermal limits. If the maximum thermal limit is obtained, the motor must be
allowed to return to ambient temperature before resuming operation.

CAUTION: DO NOT use to pump flammable liquids. Never operate the

pump in an explosive environment.. Arcing from the motor brushes, switch, or
excessive heat from an improperly cycled motor may cause an explosion.

CAUTION: DO NOT assume fluid compatibility. If the fluid is improperly

matched to the pumps' elastomers, a leak may occur. Pumps used to
transfer hazardous or hot (max. temperature 170°F [76°C] Viton
chemicals must be in a ventilated area to guard against the possibility of
injury due to harmful or explosive liquid/vapors.

CAUTION: DO NOT operate the pump at pressures which cause the

motor to exceed the amperes rating indicated on the nameplate.
Various pump models are equipped with thermal breakers to interrupt
operation due to excessive heat. Once the temperature of the motor is
within proper limits it will automatically reset, and the pump will start
operation without warning.

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911-314 Rev. R 5/08 Page: 1 of 8

CAUTION: To prevent electrical shock, disconnect power before initiating

any work. In the case of pump failure, the motor housing and/or the fluid
being pumped may carry high voltage to components normally
considered safe.

PRESSURE SWITCH OPERATION (If Equipped)

The pressure switch reacts to outlet pressure, and interrupts power at a
preset shut-off pressure, indicated on the pump label. When outlet
pressure drops below a predetermined limit (typically 15-20 PSI. [1-1.4 bar]
less than the shut-off pressure), the switch will close and the pump will
operate until the shut-off (high) pressure is reached again. The shut-off
pressure is factory-set to calibrated standards.

CAUTION: Improper adjustment of the pressure switch setting may

cause severe overload, or premature failure. Refer to SHURflo Service
Bulletin
improper adjustment of the pressure switch setting will not be covered
under the limited warranty.

If the plumbing is restrictive, or the flow rate is very low, the pump may
repressurize the outlet faster than the fluid is being released, causing rapid
cycling (ON/OFF within 2 sec.). If the pump is subjected to rapid cycling
during normal operation, or for infrequent periods, damage may occur.
Applications that exhibit rapid cycling should have restrictions in the outlet
minimized. If not feasible, consider a SHURflo Accumulator or a SHURflo
"bypass" model pump.

#

1031 for the proper adjustment procedure. Failures due to

BYPASS OPERATION (If Equipped*)

A bypass pump may be used in an application that would normally induce
frequent starts/stops of the motor, and thereby create a potential for
overheating. Models equipped with an internal bypass are designed to
pump at high pressure while at low flow rates. Bypass models equipped
with a switch may operate for several seconds even though the discharge
side has been closed off. Models equipped with a bypass only will
continue to run until the power is turned OFF.

MOUNTING

• The 8000 series pumps are self-priming. Horizontal and vertical prime
vary depending on the fluid viscosity and pump configuration. Refer to
the pumps’ Flow vs. Pressure Data.

• The pump should be located in an area that is dry, and provides
adequate ventilation. If mounted within an enclosure, provisions to cool
the motor may be necessary. Heat sinks, which attach to the motor, are
available from SHURflo if increased heat dissipation is necessary.

CAUTION: DO NOT locate the motor near low temperature plastics or

combustible materials. The surface temperature of the motor may
exceed 250°F [121°C].

• The pump may be mounted in any position. However, if mounting the
pump vertically, the pump head should be in the down position, so that
in the unlikely event of a leak, fluid will not enter the motor.

• Secure the rubber feet with

#

8 hardware. DO NOT compress the feet;

doing so will reduce their ability to isolate vibration/noise.

PLUMBING

• Use flexible, high-pressure tubing, compatible with the fluid to connect the
inlet/outlet ports. Tubing should be either 3/8" or 1/2" [10 or 13 mm] I.D.,
and at least 18 in. [46 cm] length is suggested to minimize stress on the
fitting/ports, and reduce noise. Allow for the shortest possible tubing
route and avoid sharp bends that may kink over time.

• Installation of a 50-mesh strainer is recommended to prevent foreign
debris from entering the system. Failures due to foreign debris are not
covered under the limited warranty.

NOTE: Restrictions on the inlet may cause vacuum levels to reach the

fluid vapor pressure, causing cavitation, degassing, 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].