2. Wilden
  3. 6 mm Accu-Flo™ Bolted Plastic AODD Pump

Wilden 6 mm Accu-Flo™ Bolted Plastic AODD Pump Engineering Operation & Maintenance Manual

  • Hello! I've reviewed the user manual for the Wilden A25PS Bolted Plastic Pump. This document provides detailed guidance on the pump's operation, maintenance, and installation, including its materials, performance, and dimensions. I'm ready to help answer your questions based on this material, including its air-operated double-diaphragm design, solenoid control, self-priming capability, and ability to pass solids.
  • What is the maximum air supply pressure for the A25PS pump?
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WIL-11010-E-01
Where Innovation Flows
EOM
ENGINEERING OPERATION
&
MAINTENANCE MANUAL
A25PS
Bolted Plastic Pump
WIL-11010-E-01 2
A25PS Bolted Plastic
Copyright
Copyright 2023 PSG
®
, a Dover Company. All rights reserved.
PSG reserves the right to modify the information and illustrations in this document without prior
notice. The product described in this document is furnished under a license agreement or
nondisclosure agreement. No part of this document may be reproduced, stored in a retrieval
system, or transmitted in any form or any means electronic or mechanical, including
photocopying and recording, without the written permission of PSG, a Dover Company, except
as described by the terms of those agreements.
This is a non-contractual document.
Trademarks
PSG and the PSG logo are registered trademarks of PSG. Wilden
®
is a registered trademark of
PSG California LLC. Pro-Flo
®
SHIFT and Pro-Flo
®
are registered trademarks of PSG California
LLC. Wil-Flex
®
is a trademark of PSG California LLC. Saniflex™ is a trademark of PSG
California LLC.
All trademarks, names, logos and service marks (collectively “trademarks”) in this document are
registered and unregistered trademarks of their respective owners. Nothing contained in this
document should be construed as granting any license or right to use any trademark without the
prior written permission of the trademark owner.
Warranty
Each and every product manufactured by Wilden is built to meet the highest standards of
quality. Every pump is functionally tested to ensure integrity of operation. Wilden warrants that
pumps, accessories and parts manufactured or supplied by it to be free from defects in material
and workmanship for a period of five (5) years from date of installation or six (6) years from date
of manufacture, whichever comes first.
For more information, and to register your Wilden pump for warranty, please visit
https://www.psgdover.com/wilden/support/warranty-registration.
Certifications
WIL-11010-E-01 3
A25PS Bolted Plastic
CONTENTS
SECTION 1: Precautions – Read First! ..................................................................................................... 4
SECTION 2: Wilden Pump Designation System ...................................................................................... 5
SECTION 3: How It Works .......................................................................................................................... 6
SECTION 4: Dimensional Drawings .......................................................................................................... 7
SECTION 5: Performance ........................................................................................................................... 8
SECTION 6: Suggested Installation, Operation, Maintenance, and Troubleshooting ......................... 9
SECTION 7: Exploded View and Parts List ............................................................................................. 12
SECTION 8: Solenoid Control .................................................................................................................. 15
WIL-11010-E-01 4
A25PS Bolted Plastic
SECTION 1
SECTION 1
WARNING: 



CAUTION:

CAUTION:
 

TEMPERATURE LIMITS:
!"#$%!#$!&#'(%&#'
)
*

%!#$
(&#'

(%&#'
+,-&#$%!#$-&#'(%&#'
*(%#$".#$ &#'!&&#'
*/ 01(#$(.%#$ 2&#'!%&#'
*(%#$".#$ &#'!&&#'
'3#$(&3#$ -1#'!!1#'
&#$3"#$ .!#'(31#'
(!#$22#$(&#'(1&#'
4'(!#$(&3#$(&#'!!1#'
5!"#$(&-#$!&#'!!&#'
5  6'// 07-#$(.3#$-&#'!%&#'
5  6'/*7-#$".#$-&#'!&&#'
6'/8-#$(&-#$-&#'!!&#'
'90-&#$(33#$-&#'.1&#'
:'-&#$(&3#$-&#'!!1#'
8-#$(-"#$;-&#'.&&#'<(.;(=!><!1;(><

NOTE: *5?:
5@
CAUTION::
7
/A'90(33#$;.1&#'<
3"#$
;(31#'<
CAUTION:0
$

$$B+

WARNING: 7C7
 


D
CAUTION::
E7
F
CAUTION:%.;(!&<

CAUTION:&3;(&<3G
!
&
;!.G
!
&<
CAUTION:%!#$;(%&#'<

CAUTION:6

CAUTION:6!1 5

CAUTION:0
D
CAUTION:6H

CAUTION:/

CAUTION:)
(&!&7
E1I
;<
CAUTION:)
NOTE:


WARNING:6
*7$$$
75$
=
' 21:
PRECAUTIONS – READ FIRST!
WIL-11010-E-01 5
A25PS Bolted Plastic
SECTION
2
MATERIAL CODES
MODEL
!1 5
WETTED PATH
9J 4'
J KLM BK LM/*/
OUTER PISTON
9J 4'
J KLM BK LM/*/
CENTER BLOCK
J KLM BK ML/*/
AIR VALVE
J KLM BK ML/*/
DIAPHRAGMS
6:5J 6'/:=:L'L/NO
;5*6K B/*/
,
<)$9E 
P+5J+/KL56
,
P:5J:L'L/NO;5*6K B/*/
,
<
VALVE BALLS
6'J 6'/;:G6/<
:'J:L'L/NOQ5*6K B/*/
,
;6GB//)L$9K65<R
VALVE SEAT
9J 4'
J KLM BK LM/*/
VALVE SEAT O-RING
)*J)E**
/ J/ 0
6'J 6'/
46J'90
SPECIALTY
CODES
&(1('O!-4$=(!4$
&(1&'O!-4$-.21&)$
&(11'O((&4
&!%-'O!!&4-.21&)$
 
NOTE:0
A25
PS
PLASTIC
LEGEND
A
25
PS
/
X
X
X
X
X
/
X
X
X
/
X
X
/
X
X
X
/
X
X
X
X
6
mm (
1/
4
") Pump
Maximum Flow Rate:
21.6 lpm (5.7 gpm)
O
-
RING
S
MODEL
VALVE SEAT
S
SPECIALTY
VALVE BALL
S
CODE
DIAPHRAGMS
AIR VALVE
CENTER BLOCK
OUTER PISTON
WETTED PATHS
;<
WILDEN PUMP DESIGNATION SYSTEM
WIL-11010-E-01 6
A25PS Bolted Plastic
SECTION
3
6:6
77
FIGURE 16
D7
6
H
6

HS

6
6

D)
7S

6
)
)

LH

H;<
FIGURE 2:D

7D
7)6D
)

)7
)

H6



6

H

6

H
FIGURE 37
7
)
7

76
6
7


HOW IT WORKS – AIR-OPERATED DOUBLE-DIAPHRAGM PUMP
WIL-11010-E-01 7
A25PS Bolted Plastic
SECTION
4
A25PS
DIMENSIONAL DRAWING
DIMENSIONAL DRAWING
WIL-11010-E-01 8
A25PS Bolted Plastic
SECTION
5
A25
PS
PLASTIC
GTTTTTTTTTTT(3.;2%><
:TTTTTTTTTTT(%2;3.><
TTTTTTTTTTT((%;-2><
5:T (!7;!2<
4'(37;.%<
TTTTTTTTTTTTTTT(=->
TTTTTTTTTTTTTTTT(=->
KTTTTTTTTTTTTTTTT(=->
5LTTTTTTTT-!;(-F<
%1:;!%F<
 57
(
TTT&&."3L;&&(&1<
0'BTTTTT!(2;13<
05D5TTTTTT(2;(=(2><
(7-%
;3&<!(
;.&<
Flow rates indicated on chart were determined by pumping water. For optimum life and performance, pumps
should be specified so that daily operation parameters will fall in the center of the pump's performance curve.
Caution: Do not exceed 8.
3
bar (12
0
psig) air supply pressure.
PERFORMANCE
PERFORMANCE
SUCTION LIFT CAPABILITY
PERFORMANCE
WIL-11010-E-01 9
A25PS Bolted Plastic
SECTION
6
:H
6

H
B? @
:



6DH
D:6


H

CAUTION:
K
0

M

Location
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H
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:7
7
A
Access:'U


7
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Air Supply:/

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1V;<6


Solenoid Operation::
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M
7

7
Muffler:E:
K5GM


Elevation:5U



Piping:'

6
7

6
7E
 D
7



'


D
'
DH7

;5/HD<


7

U
:



&1&3;3(&< 
&3;(&<

CAUTION::
E7F

CAUTION:%.;(!&<

SUGGESTED INSTALLATION, OPERATION, MAINTENANCE
AND TROUBLESHOOTING
WIL-11010-E-01 10
A25PS Bolted Plastic
NOTE:


Air-Operated Pumps:6
;<

6
H

Operation
6K H!&


5

?@
;$
H
<5



Maintenance and Inspections
H

7
6
6!1 5

Maximum Torque Specifications
Torque
Wrench
0)
2%*
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.=%
$
2%*
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$
 6'/
3(*
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4'$
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.=%
4'$
 6'/
3(*
⋅
;2!1<;W(!<
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;%&<8;W-<
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4
-1*
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.=%
 
-1*
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;-&<
.=-
8
NoteA6H!
;-<"&*⋅;%&<
This illustration is a
generic representation of
an air-operated double-
diaphragm pump
SUGGESTED INSTALLATION, OPERATION, MAINTENANCE
AND TROUBLESHOOTING
WIL-11010-E-01 11
A25PS Bolted Plastic
Troubleshooting
Pump will not run or runs slowly.
( B
! /&-;1<
;
H<
&3;(&<
. $7;?5
K06@<
- $77;<
=
1 7


2 $777
 
B7

 7
7

3 $77

Pump runs, but little or no product flows.
( $75
7H
! 4HH
;<
. $777
 
B7

 7
7

Pump air valve freezes.
( $7
 /

 

Air bubbles in pump discharge.
( $7
! $7;
?=B@<
. $7K
7
- /
Product comes out air exhaust.
( $7
! $7
SUGGESTED INSTALLATION, OPERATION, MAINTENANCE
AND TROUBLESHOOTING
WIL-11010-E-01 12
A25PS Bolted Plastic
SECTION
7
EXPLODED VIEW AND PARTS LIST
WIL-11010-E-01 13
A25PS Bolted Plastic
Item DESCRIPTION QTY
PUMP MODEL PART NO. MATERIAL
(& 5$GB+/0*'KL ( !1 5= =888=88= =88 ((.-1:-& 
!1 5=9 =888=88= =88 ((.-1:12 4'
!& )LL - !1 5=8 =888=:'= =88 ((&&(!. 5
!1 5=8 =888=6'= =88 ((&&(1" 6'/
.& 4L4/5/6 - !1 5=8 =888=88= =88 (&"!-BK-&

-& KB*+;45< -
!1 5=8 =888=88= =)* (("1-(( )E**
!1 5=8 =888=88= =46 (("1-(. '90
!1 5=8 =888=88= =/  (("1-(1 / 0
!1 5=8 =888=88= =6' (("1-(3 6'/
1& KE6/B$G0)/B ! !1 5= =888=88= =88 (&3!%-& 
!1 5=9 =888=88= =88 (&3!%12 4'
2& *6/B0/6/ ( LL0K/L5 ((1&!-& 
3&X"&  GB+0BK55/0)LM ( LL0K/L5 .1&&%&& 55
%& LK65L//4/ ( LL0K/L5 (&(&".( 
(&& **/B5 $/B; 5< . LL0K/L5 (&!((-& 
((& KB*+; 5< - LL0K/L5 (("!"(2 E
(!& /*5 $/B; 5< ! LL0K/L5 (&!(&-& 
(.& KB*+;/5< ! LL0K/L5 (("11(( *
(-& L 5/L;B< ! LL0K/L5 (!&&132 *
(1& B/6**+ L6/ ! LL0K/L5 (!3(&&!12&

(3& **/B GB+0 L6/ ! LL0K/L5 (((&1!1 5
(%(  GB+0 !
!1 5=8 =P+5=88= =88 (&2&-(" +
!1 5=8 =:'5=88= =88 (&2&-!. 5
!1 5=8 =65E=88= =88 (&2&-1" 6'/
(%!  GB+0KB*+; 6'/K*LM< ! !1 5=8 =65E=88= =88 (&2&2!. 5
!(& KE6/B GB+0 L6/:=6GB//56E ! !1 5= =888=88= =88 ((!&1&!1-&

!1 5=9 =888=88= =88 ((!&1&!112
4'
!!& 5E$6K*0*'KL ( !1 5= =888=88= =88 ((.-2-& 
!1 5=9 =888=88= =88 ((.-212 4'
.-( 5$B/:;Y2(=!@< - LL0K/L5 (!1(&!2 55
.-. 5$B/:;(=-@(&(@< !% LL0K/L5 (!12!!2 55
8512&&&
&&59

EXPLODED VIEW AND PARTS LIST
WIL-11010-E-01 14
A25PS Bolted Plastic
SOLENOID CONTROL VALVE
Item Part Number Description QTY
 (!(!%&!1(( +74&!1) (
) (!1"(!2 55G$5Y--&N!&&@55 !
$ (.-12.(  5&!1 (
 (!(.!(( +75&!1) (
/ (.-1.&& 45-:&!1 (
'
(.-1-(& $5&!1((&4$ (
(.-1-(! $5&!1(!4$ (
(.-1-!& $5&!1!!&4$ (
(.-1-!- $5&!1!-4$ (
+ (!1"!!2 *G*7Y--&55 !
G (!12!!2 5G:G56'(=-(&(&&@55 -
 (.((3&& 0E''L/B(=%>* 6 KLM !
EXPLODED VIEW AND PARTS LIST
WIL-11010-E-01 15
A25PS Bolted Plastic
SECTION
8
A25PS PLASTIC SOLENOID CONTROL

6!1 5
6-((&4$!!&4$(!4$
!-4$H*-.21&)
6!1 5*-.21&$*
-.21&)5
SOLENOID ELECTRICAL PROPERTIES
Voltage
+/- 10%
Current (Amps) Resist.
(OHMS @ 25°C)
Power
(AC = VA, DC = Watts)
Inrush Holding
((&=1&
((&=2& &! &! !.(& !-
!!&=1&
!!&=2& &( &( "1(1 !-
(!4$ (1 (1 3% !&
!-4$ &" &" !%. !&
Valve Operation
OPTIONAL ACCESSORIES
Part No.
Description
(.-21
&&
$2U((&=!!&4$5
(.-22
&&
$2U(!=!-4$5
SOLENOID CONTROL
PSG
22069 Van Buren Street
Grand Terrace, CA 92313-5651 USA
P: +1 (909) 422 -1730
psgdover.com
Copyright 2023 PSG
®
, a Dover
®
Company
PSG
®
reserves the right to modify the information and illustrations contained in this document without prior notice. This is a non-contractual document.
WIL-11010-E-01
Where Innovation Flows
/