2
WILDEN PUMP & ENGINEERING, LLC
WIL-10070-E-03
SECTION 2
WILDEN PUMP DESIGNATION SYSTEM
NOTE:
MOST ELASTOMERIC MATERIALS USE COLORED DOTS FOR IDENTIFICATION.
MODEL A2 PLASTIC MATERIAL CODES
SPECIALTY CODES
AIR SYSTEM BASE TYPE
B =
ADAPTER
BLOCK
P =
PRO-FLO
®
T =
TURBO-FLO™
WETTED PARTS & OUTER PISTON
KK = PVDF / PVDF
PP =
POLYPROPYLENE /
POLYPROPYLENE
CENTER SECTION
PP = POLYPROPYLENE
AIR VALVE
A = ALUMINUM (available on A2T
only)
P =
POLYPROPYLENE
U = UHMW PE (available
on A2B only)
DIAPHRAGMS
BNS = BUNA-N (Red Dot)
EPS = EPDM (Blue Dot)
FSS = SANIFLEX™
(Hytrel
®
(Cream))
NES = NEOPRENE (Green Dot)
PUS = POLYURETHANE (Clear)
TEU = PTFE W/EPDM
BACK-UP
(White)
TNU = PTFE W/NEOPRENE
BACK-UP
(White)
TSU = PTFE W/SANIFLEX™ BACK-UP
(White)
VTS = VITON
®
(White Dot)
WFS =
WIL-FLEX™
(Santoprene
®
(Orange Dot))
VALVE BALL
BN = BUNA-N (Red Dot)
EP = EPDM (Blue Dot)
FS =
SANIFLEX™
(Hytrel
®
(Cream))
NE = NEOPRENE (Green Dot)
PU = POLYURETHANE (Brown)
TF =
PTFE (White)
VT = VITON
®
(White Dot)
WF = WIL-FLEX™ (Santoprene
®
(Orange Dot))
VALVE SEAT
K =
PVDF
P =
POLYPROPYLENE
VALVE SEAT O-RING
BN = BUNA-N
PU = POLYURETHANE (Brown)
TV = PTFE ENCAP. VITON
®
WF = WIL-FLEX™ (Santoprene
®
)
0261 A2 Plastic, Accu-Flo™, 24V AC / 12V DC coil
0262 A2 Plastic, Accu-Flo™, 24V AC / 12V DC x-proof coil
0263 A2 Plastic, Accu-Flo™, 24V DC coil
0264 A2 Plastic, Accu-Flo™, 24V DC x-proof coil
0265 A2 Plastic, Accu-Flo™, 110V AC coil
0266 A2 Plastic, Accu-Flo™, 110V AC x-proof coil
0271 A2 Plastic, Accu-Flo™, 110V AC coil, Wil-Gard II™ 110V
0272 A2 Plastic, Accu-Flo™, 24V AC / 12V DC coil,
SS outer pistons
0273 A2 Plastic, Accu-Flo™, 24V DC coil, Wil-Gard II™ 110V
0362 Accu-Flo™, 110V AC coil, PFA coated hardware,
Wil-Gard II™ 110V
0451 A2 Plastic, Accu-Flo™, no coil, DIN flange
0454 A2 Plastic, Accu-Flo™, 24V DC coil, DIN flange
0455 A2 Plastic, Accu-Flo™, 24V AC / 12V DC coil, DIN flange
0456 A2 Plastic, Accu-Flo™, 24V DC,
Intl. x-proof coil, DIN flange
0457 A2 Plastic, Accu-Flo™, 24V DC coil,
SS outer pistons, DIN flange
0458 A2 Plastic, Accu-Flo™, 24V DC coil,
Wil-Gard II™ 220V, DIN flange
0567 Split manifold, Accu-Flo™, 24V DC coil
0570 Split manifold, Accu-Flo™, 24V AC / 12V DC coil
0509 adapter block, no muffler, P2R center section
0518 adapter block, no muffler, T2R center section
A2 X / X X X X X / XXX / XX / X XX /
XXXX
O-RINGS
MODEL
VALVE SEAT
VALVE BALLS
DIAPHRAGMS
AIR VALVE
CENTER SECTION
WETTED PARTS & OUTER PISTON
AIR SYSTEM BASE TYPE
SPECIALTY
CODE
(if applicable)
Viton is a registered trademark of DuPont Dow Elastomers.
THE THREE ACCU-FLO™ OPTIONS AVAILABLE:
1. AxT: This is the same Accu-Flo™ configuration that has been available from
Wilden since March 1994. An aluminum solenoid valve is attached directly to a
T-series center section and the shaft/inner piston configuration is altered.
2. AxP: This option uses a plastic (polypropylene or acetal) spacer that is
assembled between the Pro-Flo
®
air valve and the Pro-Flo
®
center section. The
same solenoid operator – coil assembly that is found on AxT pumps is assembled
on the plastic spacer discussed above for electronic interface. This spacer
combined with the Pro-Flo
®
air valve replaces the aluminum air valve used in the
AxT with a more chemically resistant option. Spacers will be available in the 1/4",
1/2", and 1" sizes. The use of the Pro-Flo
®
ADS provides additional flow in most
applications (refer to EOM for details). The AxP provides the Pro-Flo
®
benefits of
lower start-up pressure, reduced blow-by, and increased life.
3. AxB: This option uses an Adapter Block in place of an air valve. A user supplied,
4-way pneumatic valve must be used in conjunction with this technology. This
configuration enables the solenoid valve to be remotely installed, preventing
chemical attack in very aggressive environments. Adapter Blocks are available
for both the T and P-series center sections in all pump sizes. (See EOM AxB for
details.) Note: the “x” in the above Accu-Flo™ descriptions are used in place of a
pump model size. See Pump Designation System chart above.
