SHURFLO® Industrial Series 2088 Pumps
INSTALLATION & OPERATION MANUAL
SHURo oers various pumps models for dierent applicaons. The informaon outlined by this manual is general, and not specic to all 2088 series pumps. Be
certain the pumps' materials will be compable with the uid being pumped. 2088 series pumps are intended for intermient or connuous duty when the proper
operang criteria are met. Product Data Sheets outlining specic thermal limits, load, ow curves, and other technical informaon for a parcular model are
available. If unsure of the chemical compability with a given elastomer or the motors intended design, please call SHURo for assistance.
GENERAL CAUTION STATEMENTS
"Intermient Duty" is dened as; operated and/or frequently started within a period of me that would cause the motor to reach its maximum thermal limits.
Once the maximum thermal limit is obtained, the motor must be allowed to return to ambient temperature before resuming operaon.
DO NOT use to pump ammable 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.
DO NOT assume uid compability. If the uid 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 only) chemicals must be in a vented area to guard against the possibility of injury due to harmful or explosive ™
liquid/vapors.
DO NOT operate the pump at pressures which cause the motor to exceed the ampere rang indicated on the name plate. Various pump models are equipped
with thermal breakers to interrupt operaon due to excessive heat. Once the temperature of the motor is within proper limits it will automacally reset, and
the pump will start operaon without warning.
To prevent electrical shock, disconnect power before iniang any work. In the case of pump failure, the motor housing and/or the pumped uid may carry
high voltage to components normally considered safe.
Improper adjustment of the pressure switch may cause severe overload or premature failure. Refer to SHURo Service Bullen #1031 for the adjustment
procedure. Failures due to improper adjustment of the pressure switch will not be covered under the limited warranty.
DO NOT locate the motor near low temperature plastics or combustible materials. The surface temperature of the motor may exceed 250° F [120° C].
Electrical wiring should be performed by a qualied electrician, in accordance with all local electrical codes.
All 115 and 230 pump motors and systems, be grounded per local and state electrical codes. VAC VAC MUST
PRESSURE SWITCH OPERATION
The pressure switch reacts to outlet pressure, and interrupts power at the preset shut-o 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-o pressure), the switch will close and the pump will operate unl the shut-o (high) pressure is
achieved. The shut-o pressure is set to factory calibrated standards. See the motor label and Product Data Sheet for specic pump specicaons.
If the plumbing is restricve or the flow rate is very low, the pump may re-pressurize the outlet faster than the uid is being released causing rapid cycling ( /OFFON
WITHIN 2 seconds). If the pump is subjected to rapid cycling during normal operaon, or for infrequent periods, damage may occur. Applicaons which exhibit rapid
cycling should have restricons in the outlet minimized. If not feasible, consider a SHURo Accumulator or a SHURo "bypass" model pump.
BYPASS OPERATION
A bypass pump may be used for applicaons that normally induce frequent start/stop of the motor, and thereby create a potenal for overheang. 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 outlet side
has been closed off. Contact SHURflo for informaon regarding bypass pumps.
MOUNTING
The 2088 series pumps are self-priming. Horizontal and vercal prime vary depending on the uid viscosity and pump conguraon.
The pump should be located in an area that is dry and provides adequate venlaon. If mounted within an enclosure, provisions to cool the motor may be necessary.
Heat sinks which aach to the motor are available from SHURo if increased heat dissipaon is necessary.
The pump may be mounted in any position. However, if mounng the pump vercally the pump head should be in the down posion so that in the event of a leak,
uid will not enter the motor. Secure the rubber feet with #8 hardware. compress the feet, doing so will reduce their ability to isolate vibration/noise. DO NOT
PLUMBING
Flexible high pressure tubing compable with the uid should be used to connect the inlet/outlet ports. Tubing should be either 3/8” or ½” [10 or 13 mm] I.D., and at least 18 in.
[46 cm] length is suggested to minimize stress on the fiing/ports and reduce noise. Allow for the shortest possible tubing route and avoid sharp bends that may kink over time.
NOTE: Restrictions on the inlet may cause vacuum levels to reach the uid vapor pressure, causing cavitaon, degassing, vapor lock and a loss in performance. Inlet
pressure not exceed 30 psi. [2.1 bar] maximum. must
1/2" Male threaded models: Are intended to be used with SHURo Swivel Barb Fings which seal with an internal taper when . Standard 1/2" NPT hand ghtened
ngs may be used when ghtened to a maximum torque of 3.7 \ (45 in\ ) [5 Nm]. ft. Lb. Lb.
NOTE: SHURo does not recommend the use of metal ings or rigid pipe to plumb the inlet/outlet ports. Standard plasc male and female threaded ings can be acquired at
commercial plumbing supply stores. SHURo also distributes Swivel Barb Fitngs, and special tng through dealers. its
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. Sealers may enter
the pump inhibing valve acon, causing no prime or no shut-o. Installaon of a 50 mesh strainer is .A failure due to foreign debris is not covered under warranty
recommended to prevent foreign debris from entering the pump.
If a check valve is installed in the plumbing, it must have a cracking pressure of no more than 2 psi [.14 bar].
