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Summary of Contents for Severn Trent EJ17
- Page 1 Instruction Manual — EJ17 Ejector Chlorine, Sulfur Dioxide and Ammonia - 1 - 122.6060.5...
- Page 2 Severn Trent Water Purification, Inc. cannot be responsible for the overall system design of which our equipment may be an integral part of or any unauthorized modifications to the equipment made by any party other that Severn Trent Water Purification, Inc.
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Page 3: Table Of Contents
Vacuum Check ......................10 SERVICE ........................... 11 Periodic Maintenance ....................11 Functional Test ......................11 TROUBLESHOOTING CHART ..................17 FIGURES EJ17 Ejector ....................... 6 Pipeline Mounting ....................... 8 Ejector Piping ......................9 EJ17 Exploded View ....................12 - 3 - 122.6060.5... - Page 4 122.6060.5 - 4 -...
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Page 5: Introduction
INTRODUCTION General The EJ17 ejector is a triple check design that is operated by the flow of water or process liquid flowing through it, under sufficient pressure and velocity, to create the necessary vacuum to operate the vacuum regulator. Correct installation and proper care will ensure best operation. Read instructions carefully and save for future reference. -
Page 6: Figures 1 Ej17 Ejector
Figure 1 - EJ17 Ejector 122.6060.5 - 6 -... -
Page 7: Operation
A copy of the appropriate ejector nozzle/throat curve can be provided by contacting Severn Trent Services. The ejector must be provided with an anti-siphon valve for those applications where a negative pressure may exist when the receiving process is stopped. -
Page 8: Pipeline Mounting
2.2.2 Pipeline Mounting Mounting of the ejector(s) directly in the pipeline at the point of application (even when design permits this option) is subject to the following limitations. If any of the following limitations exist, it will be necessary to mount the ejector on a wall and install a solution line to transport the chemical solution from the ejector to the point of application. -
Page 9: Ejector Piping
Figure 3 - Ejector Piping When the solution piping is 1-1/2" or larger and the 1-1/2" MNPT ejector outlet connection is to be used, do not cut off the end of the throat between the 1 1/2" connection and the end of the throat. Doing so will prevent proper operation of the ejector. -
Page 10: Start-Up
START-UP Vacuum Check The ejector, its water supply and solution lines, must be properly installed and checked before operating the vacuum regulator. Unless the ejector is creating a vacuum at the required level, the vacuum regulator will not function. 3.1.1 Disconnect the vacuum tubing from the ejector. -
Page 11: Service
SERVICE Periodic Maintenance 4.1.1 As with all gas feeding equipment, it is recommended that the ejector be serviced a minimum of once per year. The nature and extent of servicing is dependent upon 1) the complexity of the gas supply system, 2) the type, quality and quantity of gas being handled, 3) the quality and quantity of water or process liquid being used to operate the ejector(s). -
Page 12: Ej17 Exploded View
Figure 4 - EJ17 Exploded View 122.6060.5 - 12 -... -
Page 13: Troubleshooting Chart
TROUBLESHOOTING CHART . y t y l l y l l t i t s i l t r i . y l . y l o l l e l l . y l - 13 - 122.6060.5... - Page 14 Design improvements may be made without notice. Represented by: Severn Trent Services 3000 Advance Lane Colmar, PA 18915 Tel: 215-997-4000 • Fax: 215-997-4062 Web: www.severntrentservices.com E-mail: marketing@severntrentservices.com Copyright 2005 Severn Trent Services MAY/08 122.6060.5 - 14 -...
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