Related Manuals for IWAKI PUMPS EZ Series
Summary of Contents for IWAKI PUMPS EZ Series
- Page 1 IWAKI PUMPS EZ Series Electronic Metering Pump Instruction Manual Five Boynton Road Hopping Brook Park Holliston, MA 01746 USA TEL: 508-429-1110 WEB: www.walchem.com...
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Page 2: Proprietary Material
Notice © 2021 WALCHEM, Iwaki America Inc. (hereinafter “Walchem”) Five Boynton Road, Holliston, MA 01746 USA tel (508) 429-1110 fax (508) 429-7433 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
TABLE OF CONTENTS Thank you for choosing a Walchem EZ Series metering pump. This instruction manual deals with the correct installation, operation, maintenance and troubleshooting procedures for the EZ metering pumps. Please read through it carefully to ensure the optimum performance, safety and service of your pump. -
Page 4: Introduction
Principle of Operation The EZ series electronic metering pumps consist of a pump unit, a drive unit, and a control unit. The drive unit is an electromagnetic solenoid. When the solenoid coil is energized by the control unit the armature shaft moves forward due to the magnetic force of the solenoid. -
Page 5: Model Code
FC. Not available with the ADV feature. A Auto Degassing Valve is supplied under the manual air vent valve. Available for the EZ Series in B11/16/21 and C16/21 sizes with –VC/-VE liquid ends only. -
Page 6: Capacity/Pressure Rating
1.4.3 Capacity/Pressure Rating Size Maximum Maximum Connection Max Output per Output Capacity Pressure Size (in) Stroke (mL) Tubing O.D (Gal/hr) (mL/min) 0.11 0.18 0.26 0.56 0.22 0.36 0.75 0.35 1.17 Auto Degassing valve reduces output by approx. 20% 1.4.4 Adjustment Range Frequency adjustment range: 0 to 360 strokes per minute 1.4.5 Materials of Construction Liquid... -
Page 7: Dimensions
1.5 Dimensions EZB Models with thermoplastic liquid end materials (except -FC) 7.95” (See Note 1) 1.85” Tubing (ID x OD) ø1/4” x ø3/8” Tubing (ID x OD) ø1/4” x ø3/8” 3.54” Tubing (ID x OD) ø1/4” x ø3/8” 3.21” 3.94” 0.08”... - Page 8 EZC Models with thermoplastic liquid end materials (except FC) 8.66” (See Note 1) 1.85” Tubing (ID x OD) ø1/4” x ø3/8” Tubing (ID x OD) ø1/4” x ø3/8” 3.94” Tubing (ID x OD) ø1/4” x ø3/8” 4.57” 4.13” (1.06”) Model Size 16-21 0.94"...
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Page 9: Installation
INSTALLATION 2.1 Unpacking Open the shipping carton and inspect contents for damage. If any items are missing or damaged contact your local distributor. Pumps are pre-primed with water at the factory. If the application is not compatible with water, drain and dry before use. -
Page 10: Supply Tubing
Injection Coupling Nut Valve (Air Vent Valve) Point of Injection Coupling Nut Return Line PVC Pipe Tubing Straightener (user supplied) Air Gap Ceramic weight 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
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
Outer Diameter 1/2" 3/8" NPT 1/2" NPT Trim back as needed to fit tee or fitting Figure 7 Injection Valve 2.6 Interlocking Pump CAUTION! Control of pump operation is critical. Operation and chemical addition during no flow situations can create hazardous situations from elevated chemical concentrations and chemical gasses trapped in the line. -
Page 13: Adjustment And Control
3.2 Adjustment and Control 3.2.1 EZ Pumps using the ‘D’ Control Module Manual Operation From the WAIT mode, pressing the START/STOP key will toggle the pump on and off manually. The speed can be changed with the UP and DOWN arrows both running and waiting. If less than full output is required, set the frequency to the appropriate percentage of maximum desired. -
Page 14: Ac Power Interruption
3.5 AC Power Interruption If AC power is interrupted, the pump will power up as shown below: State preceding power OFF State following power ON WAIT WAIT Running in Manual Operation Running in Manual Operation Running in Timer Operation Running in Timer Operation Setting Time WAIT Programming Timer Set points... -
Page 15: Multifunction Valve Operation
3.7 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. For more detailed specifications of the MultiFunction Valve, see its separate instruction sheet at walchem.com. Air Vent / Bleed (Prime) Function 1. -
Page 16: Maintenance
MAINTENANCE CAUTION! Before working on the pump, disconnect the power cord, depressurize the discharge tub- ing 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. -
Page 17: Exploded View & Parts Guide
EXPLODED VIEW & PARTS GUIDE PVC/GFRPP Liquid End Exploded View For EZ pump model sizes 11-36 Part Numbers for these assemblies are on Page 24... - Page 18 PVC/GFRPP Sizes 11-36 Liquid End Components Item Part# Description Material Size Liquid End Material EH1947 Pump Head VC, VE, VF EH1948 VC, VE, VF EH1949 VC, VE, VF EH1950 VC, VE, VF EH1951 VC, VE, VF, EH1952 VC, VE, VF EH1960 VC, VE, VF EH1953...
- Page 19 PVC/GFRPP Sizes 11-36 Liquid End Components (continued) Item Part# Description Material Size Liquid End Material EH0061 Seat, Valve FKMA VC, PC EH0069 FKMA B16,21 / C16,21 VC, PC EH0119 FKMA B31 / C31,36 VC, PC EH0048 EPDM VE, VF, PE EH0071 EPDM B16,21 / C16,21...
- Page 20 VCA-VEA Liquid End Exploded View For EZ pump model sizes 11 thru 21 Liquid Item Part# Description Material Size Material EH1947 Pump Head VCA,VEA EH1948 VCA,VEA EH1949 VCA,VEA EH1950 VCA,VEA EH1951 VCA,VEA EH2328 Housing, Valve (Suction) B11,16,21 / C16,21 VCA,VEA EH2330 Coupling Nut B11,16,21 / C16,21 VCA,VEA...
- Page 21 TC/TA Liquid End Exploded View For EZ Pump Models 11-36 Liquid Item Part# Description Material Size Material EH2407 Pump Head PVDF TC, TA EH2408 PVDF TC, TA EH2409 PVDF TC, TA EH1969 PVDF TC, TA EH2411 PVDF TC, TA EH2412 PVDF TC, TA EH1966...
- Page 22 FC Liquid End Exploded View For EZ Pump Models 11-36 Liquid Item Part# Description Material Size Material EH2407 Pump Head PVDF EH2408 PVDF EH2409 PVDF EH1969 PVDF EH2411 PVDF EH2412 PVDF EH1966 PVDF EH1967 PVDF EH2361 Housing, Valve PVDF B11,16,21 / C16,21 EH2362 PVDF B31 / C31,36...
- Page 23 Stainless Steel (SH-N) Liquid End Exploded View For EZ Pump Models 11-36 Item Part# Description Material Size EH2021 Pump Head 316SS EH2176 316SS B16 / C16 EH2022 316SS B21 / C21 EH2023 316SS B31 / C31 EH2024 316SS EH0429 Housing, Valve 316SS B11,16,21 / C16,21 EH0433...
- Page 24 Accessories (Not Shown) Part No. Description Size Liquid End Mtl 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 11, 16, 21...
- Page 25 Drive and Control Module Exploded View B: D-CONTROL MODULE Drive Unit D-Control Module Part numbers for these assemblies are on Page 24 A: DRIVE UNIT Item Part No. Description Series E00152 Cover, Keypad EZ-D E00153 Membrane Keypad EZ-D EH0261 Gasket, M3 x 35 Bolt EZ-D EH0202 Grommet, Cord...
- Page 26 Head Assembly EZB, EZC Control Module Valve Cartridge (not shown in this view) Drive Unit Key letters: A Drive Unit B Control Module C Head Assembly D Valve Cartridge...
- Page 27 Head Assembly* (Spare Parts Kits) Pump Model Drive Control Unit Module EZB11D1- ZB11-D1 EZBD1 NZB11 (N11-PK) EZB11D2- EZB16D1- ZB16-D1 EZBD1 NZB16 EZB16D2- (N16-PK) EZB21D1- ZB21-D1 EZBD1 NZB21 (N21-PK) EZB21D2- EZB31D1- ZB31-D1 EZBD1 NZB31 (N31-PK) EZB31D2- EZC16D1- ZC16-D1 EZCD1 N16 EZC16D2- ZC16-D2 EZCD2 (N16-PK)
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Page 28: 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 EZ Series electronic metering pumps have a 2-year warranty. Contact your Walchem distributor for service.
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