WILDEN PUMP & ENGINEERING CO.
2
WIL-10020-E-06
SECTION 2
WILDEN PUMP DESIGNATION SYSTEM
Viton is a registered trademark of DuPont Dow Elastomers.
NOTE:
MOST ELASTOMERIC MATERIALS USE COLORED DOTS FOR IDENTIFICATION.
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-in, 1/2-in, and 1-in 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.
A.025 ORIGINAL
™
PLASTIC
6 mm (1/4") Pump
Maximum Flow Rate:
10.6 LPM (2.8 GPM)
MATERIAL CODES
AIR SYSTEM BASE TYPE
B = ADAPTER
BLOCK
P = PRO-FLO
®
T = TURBO-FLO™
WETTED PARTS & OUTER PISTON
KK = PVDF / PVDF
KZ = PVDF / NO PISTON
PP = POLYPROPYLENE /
POLYPROPYLENE
PZ = POLYPROPYLENE /
NO PISTON
CENTER SECTION
PP = POLYPROPYLENE
AIR VALVE
A = ALUMINUM
P = POLYPROPYLENE
U = UHMW (Available for A.025B
only)
DIAPHRAGMS
BNS = BUNA-N (Red Dot)
TNL =
PTFE
W/
NEOPRENE
BACK-UP O-RING,
IPD (White)
WFS =
WIL-FLEX™ [Santoprene
®
(Orange Dot)]
VALVE SEAT
K = PVDF
P = POLYPROPYLENE
VALVE SEAT O-RING
BN = BUNA-N
TV = PTFE ENCAP. VITON
®
WF = WIL-FLEX™ [
Santoprene
®
]
LEGEND
A.025 X / XXXXX / 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)
SPECIALTY CODES
0150 Accu-Flo™, 24V DC coil
0151 Accu-Flo™, 24V AC / 12V DC coil
0153 Accu-Flo™, 24V AC / 12V DC x-proof coil
0154 Accu-Flo™, 24V DC x-proof coil
0155 Accu-Flo™,
110V
coil
0156 Accu-Flo™, 110V AC x-proof coil
0157 Accu-Flo™, 24V DC x-proof coil, Intl.,
PTB approved
0169 Accu-Flo™, 110V AC coil,
PFA coated hardware
0170 Accu-Flo™, 110V AC x-proof coil,
PFA coated hardware
0180 Accu-Flo™, 24V AC / 12V DC coil,
PFA coated hardware
0181 Accu-Flo™, 24V AC / 12V DC x-proof coil,
PFA coated hardware
0184 Accu-Flo™, 24V DC coil, PFA coated hardware
0185 Accu-Flo™, 24V DC x-proof coil,
PFA coated hardware
