Dover Wilden Advanced P400 Engineering, Operation & Maintenance Download

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WIL-11210-E-15

WILDEN PUMP & ENGINEERING, LLC

CAUTION: Do not apply compressed air to the

exhaust port — pump will not function.

CAUTION: Do not over-lubricate air supply — excess

lubrication will reduce pump performance. Pump is
pre-lubed.

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)

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

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 components.
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 significantly reduce maximum safe operating
temperatures. Consult Chemical Resistance Guide (E4)
for chemical compatibility and temperature limits.

WARNING: Prevent static sparking. If static sparking

occurs, fire or explosion could result. Pump, valves,
and containers must be grounded to a proper
grounding point 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: The process fluid and cleaning fluids

must be chemically compatible with all wetted pump
components. Consult Chemical Resistance Guide (E4).

CAUTION: Do not exceed 82°C (180°F) air inlet

temperature for Pro-Flo X™ models.

CAUTION: Pumps should be thoroughly flushed

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

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.

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 filter. A 5μ (micron) air filter is
recommended.

NOTE: When installing Teflon

diaphragms, it is

important to tighten outer pistons simultaneously
(turning in opposite directions) to ensure tight fit. (See
torque specifications in Section 7.)

NOTE: Cast Iron Teflon

-fitted pumps come standard

from the factory with expanded Teflon

gaskets

installed in the diaphragm bead of the liquid chamber.
Teflon

gaskets cannot be re-used.

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: Pro-Flo

pumps cannot be used in

submersible applications. Pro-Flo X™ is available
in both submersible and non-submersible options.
Do not use non-submersible Pro-Flo X™ models in
submersible applications. Turbo-Flo

pumps can also

be used in submersible applications.

CAUTION: Tighten all hardware prior to installation.

4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.

S e c t i o n 1

C A U T I O N S — R E A D F I R S T !