Trebor SL20 CHAMPION - Manual (Page 3)

CHAMPION SL20 PUMP OPERATION / MAINTENANCE MANUAL PAGE 3
1 PREFACE
1.1 INTRODUCTION TO TREBOR SL20 SLURRY/BOOSTER
PUMP
We are pleased that you have chosen the Trebor SL20 pump for your high purity
application.
This innovative, dual chamber, vacuum fill pump offers near pulse-less flow –
typically 5 PSI or less in most applications. This is the result of Cross Phase
Discharge™, or overlapping pump strokes, that eliminates the momentary pump
pressure drop-off between strokes, typical of all other internally connected
reciprocating pumps. This improves filter life, provides consistent process
results, and eliminates the need for large and costly pulsation dampeners.
The SL20 utilizes very few moving parts, thereby improving reliability, reducing
particle generation, and lowering maintenance costs. As a matter of fact, the
only regularly scheduled serviceable parts are the PTFE diaphragms, externally
accessible check balls and seats, air quick exhaust valves, and exhaust media.
Configured with all fluoropolymer wetted components, the SL20 is compatible
with virtually all aggressive ultra-pure chemicals. There are absolutely no
elastomer O-rings or metal parts (including no coated metal parts) that could
contaminate your critical chemistries. Plus, the pump is fully plenum compatible.
Vacuum filled pumping chambers and Cross Phase Discharge™ are key to the
SL20’s unmatched particle cleanliness and low pulsation. Fluid chambers are
filled by passing positive air pressure through vacuum generators installed in the
pump base. Optic sensors in the pump heads determine when the fluid
chambers are filled and ready to pump. These sensors signal the PC20 Pump
Controller to pressurize the fluid chamber and discharge the fluid, which is
isolated by a PTFE diaphragm. The PC20’s control algorithm regulates the fill
and discharge strokes for constant overlap and optimum performance.
The rated flow of the SL20 (20 LPM or 5.3 GPM) is only limited by the vacuum fill
capability. Positive inlet head will greatly increase the chamber fill rate, and
subsequently the discharge flow rate, providing a maximum flow rate of 45 LPM
or 12 GPM when inlet pressure exceeds 15 PSI (.1 MPa). The high discharge
capacity creates very flat flow curves in low flow ranges. This means that spray
processes that benefit from constant line pressure will stay that way as inline
valves are opened and closed. The SL20 also utilizes Trebor’s patented floating
ring check seats for exceptional suction lift of even viscous chemicals.
Thanks again for purchasing Trebor products. We are confident that you will be
pleased with the performance and reliability of the SL20 pump. In the rare event
you do experience difficulty with this product; you can be assured that Trebor will
quickly respond with knowledgeable solutions and comprehensive warranty
service.