WIL-12350-E-02 1 WILDEN PUMP & ENGINEERING, LLC
CAUTIONS — READ FIRST!
Section 1
TEMPERATURE LIMITS:
NOTE: Not all materials are available for all models.
Refer to Section 2 for material options for your pump.
CAUTION: When choosing pump materials, be sure to
check the temperature limits for all wetted compo-
nents. Example: Viton® has a maximum limit of 177°C
(350°F) but polypropylene has a maximum limit of
only 79°C (175°F).
CAUTION: Maximum temperature limits are based
upon mechanical stress only. Certain chemicals will
signicantly reduce maximum safe operating tem-
peratures. Consult Chemical Resistance Guide (E4) for
chemical compatibility and temperature limits.
WARNING: Prevent static sparking. If static sparking
occurs, re or explosion could result. Pump, valves and
containers must be grounded to proper grounding
point when handling ammable uids and whenever
discharge of static electricity is a hazard.
CAUTION: Do not exceed 5.9 bar (85 psig) air supply
pressure.
CAUTION: All piping, valves, gauges and other com-
ponents installed on the liquid discharge must have a
minimum pressure rating of 20.7 bar (300 psig).
CAUTION: The discharge pressure generated by this
pump is three times the inlet pressure supplied.
CAUTION: The process uid and cleaning uids must
be chemically compatible with all wetted pump com-
ponents. Consult Chemical Resistance Guide (E4).
CAUTION: Pumps should be thoroughly ushed
before installing into process lines. FDA- and USDA-
approved pumps should be cleaned and/or sanitized
before being used.
CAUTION: Always wear safety glasses when operating
pump. If diaphragm rupture occurs, material being
pumped may be forced out air exhaust.
CAUTION: Before any maintenance or repair is at-
tempted, the compressed air line to the pump should
be disconnected and all air pressure allowed to bleed
from pump. Disconnect all intake, discharge and air
lines. Drain the pump by turning it upside down and
allowing any uid to ow into a suitable container.
CAUTION: Blow out air line for 10 to 20 seconds before
attaching to pump to make sure all pipeline debris is
clear. Use an in-line air lter. A 5 (micron) air lter is
recommended.
NOTE: Before starting disassembly, mark a line from
each liquid chamber to its corresponding air chamber.
This line will assist in proper alignment during reas-
sembly.
CAUTION: Wilden® H1500 High Pressure pumps can-
not be used in submersible applications.
CAUTION: Tighten all hardware prior to installation.
NOTE: When installing PTFE diaphragms, it is impor-
tant to tighten outer pistons simultaneously (turning
in opposite directions) to ensure tight t. (See Torque
Specications in Section 7.)
CAUTION: Do not over-lubricate air supply – excess
lubrication will reduce pump performance. Pump is
pre-lubricated.
Polypropylene 0°C to 79°C 32°F to 175°F
PVDF –12°C to 107°C 10°F to 225°F
PFA 7°C to 107°C 20°F to 225°F
Neoprene –18°C to 93°C 0°F to 200°F
Buna-N –12°C to 82°C 10°F to 180°F
EPDM –51°C to 138°C –60°F to 280°F
Viton
®
FKM –40°C to 177°C –40°F to 350°F
Wil-Flex™ –40°C to 107°C –40°F to 225°F
Saniflex™ –29°C to 104°C –20°F to 220°F
Polyurethane –12°C to 66°C 10°F to 150°F
Polytetrafluoroethylene (PTFE)
1
4°C to 104°C 40°F to 220°F
Nylon –18°C to 93°C 0°F to 200°F
Acetal –29°C to 82°C –20°F to 180°F
SIPD PTFE
with
Neoprene-backed
4°C to 104°C 40°F to 220°F
SIPD PTFE
with
EPDM-backed
–10°C to 137°C 14°F to 280°F
Polyethylene 0°C to 70°C 32°F to 158°F
Geolast
®
–40°C to 82°C –40°F to 180°F
1
4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
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