1. Manuals
  2. Brands
  3. IWAKI Manuals
  4. Water Pump
  5. EK Series
  6. Instruction manual

IWAKI EK Series Instruction Manual

Electronic metering pump
Hide thumbs Also See for EK Series:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Instruction Manual
IWAKI PUMPS
EK Series Electronic Metering Pump
Instruction Manual
Five Boynton Road Hopping Brook Park Holliston, MA 01746 USA
TEL: 508-429-1110
WEB: www.walchem.com

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the EK Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for IWAKI EK Series

Summary of Contents for IWAKI EK Series

  • Page 1 IWAKI PUMPS EK Series Electronic Metering Pump Instruction Manual Five Boynton Road Hopping Brook Park Holliston, MA 01746 USA TEL: 508-429-1110 WEB: www.walchem.com...
  • Page 2 Notice © 2016 WALCHEM, Iwaki America Inc. (hereinafter “Walchem”) Five Boynton Road, Holliston, MA 01746 USA tel (508) 429-1110 All Rights Reserved Printed in USA Proprietary Material The information and descriptions contained herein are the property of WALCHEM. Such information and descriptions may not be copied or reproduced by any means, or disseminated or distributed without the express prior written permission of WALCHEM.

  • Page 3: Table Of Contents

    Thank you for choosing a Walchem E-Class metering pump. This instruction manual deals with the correct installation, operation, maintenance and troubleshooting procedures for the EK model metering pumps. Please read through it care- fully to ensure the optimum performance, safety and service of your pump. Contents 1.0 INTRODUCTION ..................1 1.1 Safety and Caution Notes ........................

  • Page 4: Introduction

    Black UV resistant tubing should be used if the tubing is exposed to strong UV radiation (sun- light/lamps). The EK Series is specifically designed to withstand the elements and can be mounted directly outdoors within the temperature specfications. To protect and maintain the IP rating of the pump, the clear covers that protect the electronic controls MUST be left in a secured/tightened condition at all times other than during adjustment of the pump.

  • Page 5: Model Code

    1.3 Model Code Pump Series IP 67 aggressive environment rated electronic metering pump with external pulse control or manual speed control (adjustable to 360 strokes per minute) and manually adjustable stroke length. (Turndown ratio 1800:1.) Capacity/Pressure Rating (See Section 1.4 for detailed chart.) Control Module For use on all EK models, features external pulse input control and stop input.

  • Page 6: Capacity/Pressure Rating

    1.4.3 Capacity/Pressure Rating Connection Maximum Output Maximum Size Size (in) Output Capacity per Stroke (mL) Pressure Tubing O.D (mL/ (Gal/hr) Min. Max. min) 0.03 0.11 0.04 0.18 0.07 0.32 0.12 0.58 0.05 0.22 0.08 0.40 0.15 0.75 0.35 0.24 1.17 Auto Degassing valve (ADV) reduces output capacity by approximately 20% of rated.

  • Page 7: Dimensions

    1.5 Dimensions (All dimensions in inches) EK-11,16 and 21 Models with thermoplastic liquid end materials 10.65” (see note 1) 1.85” ø1/4” x ø3/8” ø1/4” x ø3/8” ø1/4” x ø3/8” 5.71” 1.02” 7.78” 1.77” 0.31” 0.67” 0.79” 0.67” 0.79” Notes: 1. Addition of a Multifunction valve increases overall length by 0.10". 2.
  • Page 8 EK Models with SH liquid end 9.39” 0.57” 1/4” NPT 1/4” NPT 5.66” 1.04” 7.78” Model Size 11,16, 21 3.70" 8.07" 9.88" 31, 36 3.31" 8.54" 10.37" 0.67” 0.79” 0.67” 0.79” 1.77” 0.29” EK Models with FC liquid end 9.31” 0.51”...

  • Page 9: Installation

    122°F (50°C) or falls below 32°F (0°C). Pumps should always be shielded from direct exposure to the elements. Black UV resistant tubing should be used if the tubing is exposed to strong UV radiation (sunlight/lamps). The EK Series is specifically designed to withstand the elements and can be mounted directly outdoors within the temperature specifications.

  • Page 10: Supply Tubing

    Injection Coupling Nut Valve (Air Vent Valve) Point of Injection Return Line Coupling Nut PVC Pipe Tubing Straightener (user supplied) Air Gap Coupling Nut Foot Valve Figure 4 Connection Tubing 2.3 Supply Tubing The supply tubing run should be as short as possible. For flooded suction mounting, install a shut-off valve with an appropriate tubing connector at the tank outlet.

  • Page 11: Discharge Tubing

    Tubing Fitting Coupling on pump Tubing clamp Tubing Slide adapter tubing down Figure 5 2.4 Discharge Tubing Cut a length of tubing long enough to go from the pump to the application (injection) point. Additional tubing can be ordered from your distributor. Avoid sharp turns or bends and hot surfaces. Routing tubing through rigid pipe such as PVC pipe is recommended for long runs and/or as protective shielding against corrosive chemicals.

  • Page 12: Interlocking Pump

    In addition to preventing backflow from pressurized lines, the injection valve acts somewhat as a back pressure valve when pumping into open atmosphere type applications. However, the back pressure by the injection valve is very low and can vary. The output of the metering pumps is rated at maximum back pressure and will increase as back pressure decreases dependent on the specific installation.

  • Page 13: Operation

    OPERATION 3.1 Pump Operation & Programming The EK pumps have a digital display, two LED indicators and three pushbutton keys to change the pump speed and programming. START/STOP Key 3 6 0 Manually stops and starts UP Key the pump. Used with Up/Down Increases numeric keys for programming and values.

  • Page 14: Programming

    3.1.1 Programming Pressing the stop/start and up keys simultaneously will enter the program mode. The up and down keys scroll through the menus and choices and the stop/start key will exit back to the wait mode. On-Time Menu The first item displayed will be the factory set choice of the External Input On-Time menu (T-5). There are three choices in this menu: T-5, T-20, and T-50 that can be scrolled through by repeatedly pressing the up key.

  • Page 15: Adjustment

    EK Pumps and the ‘R’ control module One custom watertight connector is used for the digital input and stop/start connections on the EK pumps. There are no outputs on the EK pumps. The Connector Holder is keyed to fit into the pump only one direction. There is a set of painted alignment marks on the connector and connector holder that identify the correct orientation of the connector.

  • Page 16: Multifunction Valve Operation

    3.4 MultiFunction Valve Operation The MultiFunction Valve is optional on select E-Series pumps and replaces the standard Manual Air Vent Valve when ordered. It integrates the air venting/bleeding functions with a back pressure, anti-siphon, and pressure relief valve. Air Vent / Bleed Function 1.

  • Page 17: Auto Degassing Valve Operation

    Manual air vent valve 3.5 Auto Degassing Valve Operation Vent port The Auto Degassing Valve (ADV) is an option on select EK pumps and Discharge port is added under the standard Manual Air Vent Valve when ordered. It is used primarily in applications where gassing is a problem and pumps can lose prime.

  • Page 18: Maintenance

    MAINTENANCE CAUTION: Before working on the pump, disconnect the power cord, depressurize the discharge tubing and drain or flush any residual liquid from the pump head and valves. Always wear protective gear when working around chemicals. 4.1 Diaphragm Replacement Disconnect AC power to the pump and disconnect the suction tubing, discharge tubing, and air vent tubing. Remove the four head bolts with a 4mm or 5mm hex wrench.

  • Page 19: Exploded View & Parts Guide

    EXPLODED VIEW & PARTS GUIDE PVC/GFRPP Liquid End Exploded View For EK pump model sizes 11-36 Entire Head Assembly Valve Cartridge Multifunction Valve Part Numbers for these assemblies are on Page 25...
  • Page 20 PVC/GFRPP Sizes 11-36 Liquid End Components Item Part# Description Material Size Liquid End Material EH2015 Pump Head VC, VE, VF EH1950 B16 / C16 VC, VE, VF EH1951 B21 / C21 VC, VE, VF EH1960 B31 / C31 VC, VE, VF EH1953 VC, VE, VF EH2017...
  • Page 21 PVC/GFRPP Sizes 11-36 Liquid End Components (continued) Item Part# Description Material Size Liquid End Material EH0071 EPDM B16,21 / C16,21 VE, VF, PE EH0125 EPDM B31 / C31,36 VE, VF, PE EH0025 Ball, Valve VC, VE, PC, PE EH0084 B16,21 / C16,21 VC, VE, PC, PE EH0120 B31 / C31,36...
  • Page 22 VCA-VEA Liquid End Exploded For EK pump model sizes 11 thru 21 Liquid Item Part# Description Material Size Material EH2015 Pump Head VCA,VEA EH1950 B16 / C16 VCA,VEA EH1951 B21 / C21 VCA,VEA EH2328 Housing, Valve (Suction) B11,16,21 / C16,21 VCA,VEA EH2330 Coupling Nut B11,16,21 / C16,21 VCA,VEA...
  • Page 23 TC Liquid End Exploded For EK pump model sizes 11-36 Liquid Item Part# Description Material Size Material EH2410 Pump Head PVDF EH2411 PVDF B16 / C16 EH2412 PVDF B21 / C21 EH1966 PVDF B31 / C31 EH1967 PVDF EH2359 Housing, Valve (Suction) PVDF B11,16,21 / C16,21 EH2360...
  • Page 24 FC Liquid End Exploded For EK pump model sizes 11-36 Liquid Item Part# Description Material Size Material EH2410 Pump Head PVDF EH2411 PVDF B16 / C16 EH2412 PVDF B21 / C21 EH1966 PVDF B31 / C31 EH1967 PVDF EH2361 Housing, Valve PVDF B11,16,21 / C16,21 EH2362...
  • Page 25 SH Liquid End Exploded View For all EK pump models Liquid End Item Part# Description Material Size Material EH2021 Pump Head 316SS SH, SH-N EH2176 316SS B16 / C16 SH, SH-N EH2022 316SS B21 / C21 SH, SH-N EH2023 316SS B31 / C31 SH, SH-N EH2024...
  • Page 26 Accessories (Not Shown) Part# Description Size Liquid End Material E90665 Connector Assy, EK pump, Input CAN-1VC-7 Valve, Injection 3/8 11, 16, 21 CAN-1VE-7 Valve, Injection 3/8 11, 16, 21 VE, VF CAN-1PA-7 Valve, Injection 3/8 11, 16, 21 CAN-1PC-7 Valve, Injection, 3/8 11, 16, 21 CAN-1PE-7 Valve, Injection, 3/8...
  • Page 27 (Inside) Drive Unit Control Module Head Assembly Valve Cartridge...
  • Page 28 Head Assembly * (Spare Parts Kit) Drive Control Pump Model Unit Module EKB11R1- KB11-R1 N11 EKB11R2- KB11-R2 (N11-PK) EKB16R1- KB16-R1 N16 EKB16R2- KB16-R2 (N16-PK) EKB21R1- KB21-R1 N21 (N21-PK) EKB21R2- KB21-R2 EKB31R1- KB31-R1 N31 (N31-PK) EKB31R2- KB31-R2 EKC16R1- KC16-R1 N16 EKC16R2- KC16-R2 (N16-PK) EKC21R1-...
  • Page 29 Drive and Control Module Exploded View 19 (x6) 13 (x7) Drive Unit Control Module Part Numbers for these assemblies are on Page 25 Item Part No. Description Series EH1573 Gasket, Pump Head, EW/EK 11-21 EH1574 Gasket, Pump Head, EW/EK 31 EH1575 Gasket, Pump Head, EW/EK 36 EH1690...

  • Page 30: Troubleshooting

    Tighten pump head bolts Torque: 19 lb-in (2.16 N-m) Diaphragm is damaged Replace diaphragm O-ring or valve gasket missing Install o-ring or valve gasket SERVICE POLICY The EK Series electronic metering pumps have a 2-year limited warranty. Contact your Walchem distributor for service.

Table of Contents