WIL-10187-E-03
Wilden
®
4
Precautions - Read First!
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.
TEMPERATURE LIMITS*:
Acetal
–
29°C to 82°C
–
20°F to 180°F
Buna-N
–
12°C to 82°C
10°F to 180°F
Geolast
®
–
40°C to 82°C
–
40°F to 180°F
Neoprene
–
18°C to 93°C
0°F to 200°F
Nordel
®
EPDM
–
51°C to 138°C
–
60°F to 280°F
Nylon
–
18°C to 93°C 0°F to 200°F
PFA
–
7°C to 107°C
45°F to 225°F
Polypropylene
0°C to 79°C
32°F to 175°F
Polyurethane
–
12°C to 66°C 10°F to 150°F
PVDF
–
12°C to 107°C
10°F to 225°F
Saniflex™
–
29°C to 104°C
–
20°F to 220°F
SIPD PTFE with EPDM-
backed
4°C to 137°C
40°F to 280°F
SIPD PTFE with Neoprene-
backed
4°C to 93°C
40°F to 200°F
PTFE
1
4°C to 104°C
40°F to 220°F
FKM
–
40°C to 177°C
–
40°F to 350°F
Wil-
Flex™
–
40°C to 107°C
–
40°F to 225°F
1
4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1")
models only.
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: FKM 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
engineering 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.
Plastic series pumps are made of virgin plastic and are not
UV-stabilized. Direct sunlight for prolonged periods can cause
deterioration of plastics.
WARNING:
Prevent static sparking
—
If static
sparking occurs, fire or explosion could result. Pump,
valves, and containers must be grounded when
handling flammable fluids and whenever discharge of
static electricity is a hazard. To ground the Wilden
“Champ”
, all clamp bands must be grounded to a
proper grounding point
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
.
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 PTFE diaphragms, it is
important to tighten outer pistons simultaneously
(turning in opposite directions) to ensure tight fit.
NOTE:
P8 PVDF and PFA pumps come standard
from the factory with expanded PTFE gaskets
installed in the diaphragm bead of the liquid
chamber, in the T-section and in the ball and seat
area. PTFE 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:
The P8 plastic pump is not submersible.
CAUTION:
Pumps should be flushed thoroughly with
water before installation into process line.
CAUTION:
Tighten all hardware prior to installation.
Section 1
