CAUTION:
Do not apply compressed air or gas to the
exhaust port – pump will not function.
CAUTION:
Do not lubricate air supply. Excess
lubrication will reduce pump performance. Pump is
pre-lubed and does not require in-line lubrication.
TEMpErATUrE LIMITS:
Polypropylene 0.0°C to 79.4°C
(32°F to 175°F)
Wil-Flex
TM
(Santoprene
®
)
–40.0°C to 107.2°C (–40.0°F to 225°F)
CAUTION:
When choosing pump materials, check
the temperature limits for all wetted components.
Example: Wil-Flex™ has a maximum limit of 107.2°C
(225°F) but polypropylene has a maximum limit of
only 79.4°C (175°F).
CAUTION:
Maximum temperature limits are based
upon mechanical stress only. Certain chemicals
will significantly reduce maximum safe operating
temperatures. Consult Wilden’s Chemical Resistance
Guide for chemical compatibility and temperature
limits.
CAUTION:
Do not exceed 8.6 bar (125 psig) air or gas
supply pressure.
CAUTION:
If used with CO
2
or N
2
be sure the area is
well ventilated.
WArNING:
Do not pump gasoline or flammable
liquids or use where flammable vapors are present.
CAUTION:
Process fluid and cleaning fluids must
be chemically compatible with all wetted pump
components. Consult Wilden’s Chemical Resistance
Guide for chemical compatibility.
CAUTION:
Always wear safety glasses when operating
pump. If diaphragm rupture occurs, material being
pumped can be forced out air exhaust.
CAUTION:
Before removing pump from application,
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.
NOTE:
Tighten all hardware prior to installation.
NOTE:
Wilden’s Hornet™ pump cannot be used in
submersible applications. If your application requires
a submersible pump, contact your authorized Wilden
Distributor for an alternative pump model.
C a U T I O N S – R E a D F I R S T !
LEGEND
HU xxx / xxxxx / xxx / xx /xxx/
xxxx
FITTING
O-RINGS
CHECK
VaLVE
SPRING
HORNET
TM
PUMP
CHECK VaLVE
PUMP SIZE
DIaPHRaGMS
aIR VaLVE
CENTER SECTION
wETTED PaRTS & OUTER PISTON
SPECIaLTy
CODE
(if applicable)
P U M P D E S I G N a T I O N S y S T E M
CHECK VaLVE SPRING
H = ALLOY C
MaNIFOLD/FITTING O-RING
WF = WIL-FLEX™ (Santoprene
®
)
aIR VaLVE
E = POLYETHYLENE
DIaPHRaGMS/O-RINGS
WBL = WIL-FLEX™ (Santoprene
®
)
w/BUNA BACK-UP O-RING,
IPD (cream)
CHECK VaLVE
WF = WIL-FLEX™ (Santoprene
®
)
PUMP SIZE
38 = 10 mm (3/8”)
100 = 13 mm (1/2”)
wETTED PaRTS & OUTER PISTON
PZ = POLYPROPYLENE/NO PISTON
CENTER SECTION
PP = POLYPROPYLENE
MaTERIaL CODES
SPECIaLTy CODES
No specialty code - MNPT Connection (note: only available for 10mm (3/8”) at this time)
0645 - Fitting, Hose Barb Connection