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WILDEN PUMP & ENGINEERING, LLC
WIL-10060-E-03
TEMPERATURE LIMITS:
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)
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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
CAUTION: When choosing pump materials, be
sure to check the temperature limits for all wetted
components .
CAUTION: Maximum temperature limits are based
upon mechanical stress only . Certain chemicals
will significantly reduce maximum safe operating
temperatures . Consult the Chemical Resistance Guide
for chemical compatibility and temperature limits .
CAUTION: Always wear safety glasses when
operating pump . If diaphragm rupture occurs,
material being pumped may be forced out air
exhaust .
WARNING: Prevent static sparking — If static
sparking occurs, fire or explosion could result .
Pump, valves, and containers must be properly
grounded when handling flammable fluids and
whenever discharge of static electricity is a hazard .
CAUTION: Do not exceed 8 .6 bar (125 psig) air
supply pressure .
CAUTION: Before any maintenance or repair is
attempted, 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 fluid to flow into
a suitable container . ghly flushed before installing
into process lines . FDA- and USDA-approved
pumps should be cleaned and/or sanitized before
being used .
CAUTION: Blow out air line for 10 to 20 seconds
before attaching to pump to make sure all pipe line
debris is clear . Use an in-line air filter . A 5µ (micron)
air filter is recommended .
NOTE: Tighten all fasteners prior to installation .
Fittings may loosen during transportation .
NOTE: When installing PTFE diaphragms, it is
important to tighten outer pistons simultaneously
(turning in opposite directions) to ensure tight fit .
NOTE: Before starting disassembly, mark a line
from each liquid chamber to its corresponding air
chamber . This line will assist in proper alignment
during reassembly .
CAUTION: Verify the chemical compatibility of the
process and cleaning fluid to the pump’s component
materials in the Chemical Resistance Guide .
CAUTION: Only explosion proof (NEMA 7) solenoid
valves should be used in areas where explosion proof
equipment is required .
CAUTION: Do not lubricate lube-free pumps .
CAUTION: The A2 pump is not submersible .
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4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
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C A U T I O N S — R E A D F I R S T !
