TABLE OF CONTENTS
SECTION 1 CAUTIONS—READ FIRST! .............................................1
SECTION 2 WILDEN PUMP DESIGNATION SYSTEM ................................2
SECTION 3 HOW IT WORKS—PUMP & AIR DISTRIBUTION SYSTEM. . . . . . . . . . . . . . . .3
SECTION 4 DIMENSIONAL DRAWINGS .............................................4
SECTION 5 PERFORMANCE
A. P400 Plastic Performance Curves
Rubber-Fitted ....................................................... 6
TPE-Fitted .......................................................... 6
Reduced-Stroke PTFE-Fitted .......................................... 7
Full-Stroke PTFE-Fitted ............................................... 7
Suction-Lift Curves .................................................... 8
B. PX400 Plastic Performance
Operating Principle ....................................................10
How to Use this EMS Curve .............................................11
Per f orma nc e Curves
Rubber-Fitted ....................................................14
TPE-Fitted .......................................................15
Reduced-Stroke PTFE-Fitted ........................................16
Full-Stroke PTFE-Fitted ............................................17
Suction-Lift Curves ....................................................18
SECTION 6 SUGGESTED INSTALLATION, OPERATION & TROUBLESHOOTING ......19
SECTION 7 DISASSEMBLY / REASSEMBLY ........................................22
Pro-Flo
®
Air Valve / Center Section Disassembly ...............................25
Pro-Flo X
TM
Air Valve / Center Section Disassembly .............................28
Reassembly Hints & Tips ..................................................30
SECTION 8 EXPLODED VIEW & PARTS LISTING
P400 Plastic .............................................................32
PX400 Plastic ...........................................................34
SECTION 9 ELASTOMER OPTIONS ................................................36