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IWAKI PUMPS EHN-R Instruction Manual

Electromagnetic metering pump
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Iwaki
Electromagnetic Metering Pump
EHN-R (Standard)
Instruction manual
Thank you for choosing our product.
Please read through this instruction manual before use.
This instruction manual describes important precautions and
instructions for the product. Always keep it on hand for quick
reference.
2008 IWAKI CO., LTD.

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Summary of Contents for IWAKI PUMPS EHN-R

  • Page 1 Iwaki Electromagnetic Metering Pump EHN-R (Standard) Instruction manual Thank you for choosing our product. Please read through this instruction manual before use. This instruction manual describes important precautions and instructions for the product. Always keep it on hand for quick reference.

  • Page 2: Order Confirmation

    Order confirmation After unpacking, check the following points. Contact us or your nearest dealer if the delivery is imperfect. a. Check if the delivery is as per order. Check the nameplate to see if the dis- charge capacity, discharge pressure Iwaki Metering Pump and voltage are as per order.

  • Page 3: Table Of Contents

    Contents Order confirmation ..................... 2 Safety instructions ............... 6 Warning ......................7 Caution ......................8 Precautions for use ..................10 Outline ..................12 Introduction ..................... 12 Pump structure & Operating principle ............12 Features ....................... 13 Operational function ..................13 Part names .......................
  • Page 4 Operation ..................32 Before operation .................... 32 Points to be checked .................. 32 Retightening of pump head fixing bolts ............32 Degassing ....................33 [11•16•21] [VC•VH•PC•PH•PP] ..........34 EHN- EHN- [11•21] [FC] and [31•36] [VC•VH•PC•PH•PP•FC] ............36 Flow rate adjustment .................. 38 Stroke rate adjustment ................
  • Page 5 Valve set replacement ................69 Discharge valve set dismantlement/assembly ........69 Suction valve set dismantlement/assembly ........... 72 Diaphragm replacement ................73 Exploded view ....................76 Pump head, Drive unit & Control unit ............76 Pump head ....................77 EHN-[B11•B16•B21•C16•C21] [VC•VH•PC•PH] ........77 EHN-[B31•C31•C36] [VC•VH•PC•PH] ...........

  • Page 6: Safety Instructions

    Safety instructions Read through this section before use. This section describes important information for you to prevent personal injury or property damage. ■ Pictorial indication In this instruction manual, the estimated risk of degree caused by incorrect use is ranked with the following pictorial indications. First, fully understand informa- tion on the pictorial indications.

  • Page 7: Warning

    WARNING Turn off power before work Risk of electrical shock. Be sure to turn off power to stop the pump and related devices before work. Electrical shock Stop operation On sensing any abnormality or dangerous sign, suspend operation immediately and inspect/solve problems. Requirement Do not use the pump in anything other than a specified purpose The use of the pump in any purpose other than those clearly speci-...

  • Page 8: Caution

    CAUTION A qualified operator only The pump must be handled or operated by a qualified person with a full understanding of the pump. Any person who is not familiar with Requirement this product should not take part in operation or management. Use a specified power only Do not apply any power other than the one specified on the nameplate.
  • Page 9 Do not use the pump in a water place The pump is not totally waterproof. The use of the pump in water or high humidity could lead to electrical shock or short circuit. Prohibition Earthing Risk of electrical shock. Always earth the pump. Earthing Install an earth leakage breaker Risk of electrical shock.

  • Page 10: Precautions For Use

    Precautions for use • Electrical work shall be performed by a qualified opera- tor. Otherwise, personal or property damage accident may result. Caution • Do not install the pump in the following places where... –Under a flammable atmosphere or in a dusty/humid place. –Under direct sunlight or wind &...
  • Page 11 • Be careful not to drop the pump onto the floor. A strong impact may reduce pump performance. Do not use a pump which has once damaged. Otherwise an electrical leak or shock may result. • The pump is a light water-/dust-proof structure of IP66, but is not totally waterproof.

  • Page 12: Outline

    Outline The information such as characteristics, features and part names are described in this section. Introduction Pump structure & Operating principle The EHN series is a diaphragm metering pump which consists of a pump head, drive unit and control unit. A diaphragm is directly driven by electromagnetic force.

  • Page 13: Features

    Features ● Multivoltage All the EHN-R series is multivoltage type (100-240VAC) and can be selected without concern for local power voltage. ● High resolution Digitally-controlled spm range is 1-360 (1-300spm for the VH/PH-V). The stroke length shifts for a fine flow adjustment.
  • Page 14 Multiplier programming (See page 50) 1-999 shots can be allocated to one pulse signal. *In the EXT operation, the pump runs at the manual operation spm. *The pump runs in 1:1 operation when the multiplier is programmed to 1. Example) When the multiplier is programmed to 5, the pump makes five shots per signal.
  • Page 15 ● STOP function (See 58 page) The start/stop of the pump can be controlled by the external STOP signal. Operation stop at the stop signal input: "M-OF" The pump stops while receiving the STOP signal. *The pump resumes operation when the stop signal is released. STOP signal input Pump operation Stop...

  • Page 16: Part Names

    Part names Pump Gasket Covers a control unit mounting screw. Keypads Used for the start/stop of the Adjusting screw pump and stroke rate adjust- Used for opening the air vent port. ment/programming (See next page). Air vent port Always connect a tube. External input cable terminal Be sure to return the tube end to the supply tank or...

  • Page 17: Operational Panel

    Operational panel Display An operational status, current mode and programmed value are shown here. STROKE RATE Lights as the pump is turned on and blinks at DOWN key each shot. Used for decreasing numeric val- ues or selecting a programming mode.

  • Page 18: Basic Displays & Pump States

    ■ Basic displays & Pump states LED lights LED blinks Operation in manual mode. spm A wait state in manual mode indication blinks. The screen shows the manual The screen shows manual opera- operation spm. tion spm. A wait state in EXT mode (E-EX), Operation in EXT mode (E-EX) waiting for the external signal.

  • Page 19: Identification Codes

    Identification codes The model codes of the pump/drive units and the control unit represent the fol- lowing information. Pump/Drive units EHN - B 11 VC 1 R - a. Series name EHN: Multivoltage electromagnetic metering pump b. Drive unit code (Average power consumption) B: 20W C: 24W c.

  • Page 20: Control Unit

    e. Tube connection bore code Tube connection bore Tube type Remarks ø4×ø9 PVC braided tube or EVA tube ø4×ø6 Teflon or polyethylene tube FC type standard ø6×ø8 Teflon or polyethylene tube ø8×ø13 PVC braided tube or EVA tube ø9×ø12 Teflon or polyethylene tube ø10×ø12 Teflon tube FC type only...

  • Page 21: Installation

    Installation This section describes the installation of the pump, tubing and wiring. Read through this section before work. Observe the following points when installing the pump. • Be sure to turn off power to stop the pump and related devices before work. •...

  • Page 22: Pipework

    Pipework Connect tubes to the pump and install a check valve. Tube end (Side view) Before operation • Cut the tube ends flat. Necessary tools • Adjustable wrench or spanner Tube connection a. Pass a tube into the fitting nut and insert a Tube tube end all the way seated on the fitting.
  • Page 23 Connect an air bleed tube into the Outlet air vent port. Place the tube end in the supply tank or another container. Tube Direction of the air vent port. The air vent port can rotate 90 de- Air vent valve grees.

  • Page 24: Check Valve Mounting

    Check valve mounting The EHN series is equipped with a check valve for the prevention of a back flow, siphon and overfeeding. A back pressure valve is attached to the FC type. In the following cases be sure to install the check valve. •...
  • Page 25 Mount the check valve at the discharge tube end. * The CA check valve and the BVC back pressure valve have R1/2 and R3/8 thread connections as well as tube connection. Cut off and adjust the connec- tion length to fit the check valve into tubing. CA check valve BVC back pressure valve (for FC type) R1/2...

  • Page 26: Wiring

    Wiring Wiring for the power source, earthing and external signal. Observe the following points during wiring work. • Electrical work shall be performed by a qualified operator. Always ob- serve applicable codes or regulations. • Observe the rated voltage range. Otherwise the electrical circuit on the control unit may break.
  • Page 27 NOTE • Do not share a power source with a high power equipment which may generate surge voltage. Otherwise electronic circuit may fail. The noise caused by the inverter also affects the electronic circuit. • Power voltage should be charged at a sitting via a switch or a relay. Otherwise CPU may malfunction.

  • Page 28: External Input Cable

    Precautions for ON-OFF control by the relay The control unit is equipped with CPU. Always start/stop the pump by the STOP signal. Do not start/stop the pump by turning ON/OFF power be- cause it may adversely affect CPU. If there is no choice but to turn ON/OFF power, observe the following points.
  • Page 29 NOTE • Do not install the EXT/STOP signal wires in parallel with a power cable or combine them in a concentric cable (ex. 5 wires cable). Otherwise noise is generated through the EXT/STOP signal wires due to induction effect and it results in malfunction or failure.
  • Page 30 Remove four screws (B) from the bottom Controller cover of the control unit to detach the control- Case gasket ler cover. * The controller cover can not be totally removed because the screen on the controller cover and the PCB on the controller case are connected via cable.
  • Page 31 Connect an external signal cable. a. Detach the plug from the socket. Plug b. Use a precision screwdriver to connect the signal wires on the plug and then attach the plug to the socket. c. Adjust the slackness of the external signal cable, pulling it out.

  • Page 32: Operation

    Operation Run the pump after pipework and wiring is completed. This section describes pump operation and programming. Before operation Check the flow rate, tubing and wiring. And then perform degassing and flow rate adjustment before starting operation. Points to be checked Before operation, check if...

  • Page 33: Degassing

    ■ Use of hexagon wrench instead of a torque wrench Tighten the fixing bolts with the straight long part of a hexagon wrench (a) and further turn the bolts clockwise 90 degrees with the short part (b). Straight long part °...

  • Page 34: Ehn- [11•16•21] [Vc•Vh•Pc•Ph•Pp]

    ■ EHN- [11•16•21] [VC•VH•PC•PH•PP] Points to be checked Air bleed tube • An air bleed tube is connected to the pump. Turn on power. The LED lights and a display related to the STROKE RATE current mode appears on the screen. * The pump enters the wait state in the manual mode when turning on power with a default setting.
  • Page 35 Push the start/stop key and run the pump for more than ten minutes. STROKE RATE STROKE RATE Push the start/stop key and stop the pump. Rotate the adjusting screw clockwise to close the air vent port. Check liquid is discharged. *Degassing is required again if the pump does not discharge liquid.

  • Page 36: Ehn- [11•21] [Fc] And [31•36] [Vc•Vh•Pc•Ph•Pp•Fc]

    ■ EHN- [11•21] [FC] and [31•36] [VC•VH•PC•PH•PP•FC] The air vent port is not provided to the EHN-31•36 and the FC types. Install an air vent valve on the discharge line for degassing. See page 23 for detail. Follow the procedure below to conduct degassing if the air vent valve is not available.
  • Page 37 Program the stroke rate to 360spm. • This programming is not necessary when the display already shows 360. Move to the next step. • See page 38 "Flow rate adjustment" for detail. * Program 300spm for the VH/PH-V. Push the start/stop key and run the pump for more than ten min- utes.

  • Page 38: Flow Rate Adjustment

    Flow rate adjustment A flow rate can be adjusted by the stroke rate and stroke length. The stroke rate is indicated in spm (stroke per minutes). Stroke rate adjustment is a main way to adjust a flow rate. Stroke length is the moving distance of the plunger. A flow rate per shot can be controlled by changing stoke length.

  • Page 39: Stroke Rate Adjustment

    Flow rate, stroke rate and stroke length B type C type Fixed stroke rate 360spm Fixed stroke rate 360spm (VH/PH-V:300spm) (Stroke rate is fixed at 100%.) (Stroke rate is fixed at 100%.) 270spm 270spm (VH/PH-V:225spm) (Stroke rate is fixed at 75%.) (Stroke rate is fixed at 75%.) 180spm 180spm (VH/PH-V:150spm)
  • Page 40 Turn on power and call up manual mode. Enter manual mode to indicate spm on the STROKE RATE screen. • Push the EXT key when "EXT" or ".0"- ".360" is on the screen. • When "STOP" or "-STOP" appears on the screen, see "STOP function cancellation"...

  • Page 41: Stroke Length Adjustment

    ■ Stroke length adjustment Stroke length can be adjusted when the moving distance of the plunger is changed by the stroke length adjusting knob. The stroke length adjustment range is 50-100% for the B type, 40-100% for C type. The relation between a flow rate* and stroke length is shown as below. Fixed stroke rate Stroke length adjustment *The flow rate described on the nameplate is at 100%.

  • Page 42: Before A Long Period Of Stoppage (One Month Or More)

    Rotate the stroke length adjusting knob Stroke length adjusting knob and adjust a flow rate while the pump is running. Before a long period of stoppage (One month or more) Clean the insides of pump head and tubing. • Run the pump with clean water for about thirty minutes to rinse the insides of the pump head and tubing.

  • Page 43: Operation Programming

    Operation programming The pump operation is programmed and controlled by a control unit. The pump is controlled in different ways at each operation mode. Default setting and setting range Parameters Default setting Setting range Step 1-360 Stroke rate* (VH/PH-V: 300spm) (VH/PH-V:1-300spm) Multiply/Divide se- /NNN...

  • Page 44: Programming Flow

    Programming flow Power ON Manual mode Stroke rate setting Chattering programming Manual operation STOP function programming STOP function is active. M-ON is selected. M-OF is selected. Stand-by Operating state Operation programming...
  • Page 45 EXT display selection EXT mode spm indication spm is selected. EXT indication EXT is selected. Multiply/Divide selection Multiplier/Divider programming Divider setting Multiplier setting Divide is selected. Multiply is selected. Keypad lock Key operation is not accepted in the following displays once keypad lock became active.

  • Page 46: Manual Operation

    Manual operation Turn on power. The LED lights and a display related to the cur- STROKE RATE rent mode appears on the screen. * The pump enters the wait state in the manual mode when turning on power with a default setting. The pump calls up the last screen at a shutoff if it was not in a default setting.

  • Page 47: Ext Operation

    Use the UP or DOWN key to adjust stroke rate. • spm increases/decreases as pushing the UP/DOWN keys. • Press and hold either key for more than three seconds for quick change. Quick change stops at 1 or 360spm. 1 or 360rpm skips to 360 or 1spm when the key is released and pushed again.
  • Page 48 NOTE • Manual operation spm is applied as the EXT upper limit spm. For example, even if the external signal is entered to run the pump at 360spm, the pump does not run over 200spm as long as manual operation spm is 200rpm •...

  • Page 49: Ext Mode Programming

    Push the DOWN key while pressing the start/stop key to enter EXT mode. Note that the pump starts to run in sync with the external signal as en- tering EXT mode. STROKE RATE STROKE RATE ■ EXT mode programming The following features can be programmed for the EXT operation. •...
  • Page 50 Multiplier programming Program the number of shots per signal to control the pump. The number of shots can be programmed from 1 to 999. NOTE Do not enter the EXT signal during the programming. Enter EXT mode. • Push the DOWN key while pressing the start/stop key to move from manual mode to EXT mode.
  • Page 51 Push the start/stop key to return to EXT mode. STROKE RATE STROKE RATE Push the DOWN key and call up the multiplier programming screen. STROKE RATE STROKE RATE Use the UP or DOWN key to program a multiplier. • A multiplier increases/decreases as pushing the UP/DOWN keys. •...
  • Page 52 Push the start/stop key to return to EXT mode. STROKE RATE STROKE RATE The pump runs according to the multiplier programming. Divider programming Program the number of signals per shot to control the pump. The number of signals can be programmed from 1 to 999. NOTE •...
  • Page 53 Push the UP key and enter the Multiply/Divide selection. STROKE RATE STROKE RATE Select "/ NNN"(Divide). "X NNN" (Multiply) or "/ NNN" (Divide) can be selected by the UP and DOWN keys. STROKE RATE STROKE RATE Push the start/stop key to return to EXT mode. STROKE RATE STROKE RATE Push the DOWN key and call up the divider programming screen.
  • Page 54 Use the UP or DOWN key to program a divider. • A divider increases/decreases as pushing the UP/DOWN keys. • Press and hold either key for more than three seconds for quick change. Quick change stops at 1 or 999. 1 or 999 skips to 999 or 1 when the key is released and pushed again.
  • Page 55 Enter manual mode. • Push the start/stop key to return to manual mode if the pump is in EXT mode. STROKE RATE STROKE RATE Push the UP key while pressing the start/stop key to call up the anti-chattering programming screen. "T-5"...
  • Page 56 Push the start/stop key to return to manual mode. STROKE RATE STROKE RATE Display selection Either "EXT" or "spm" indication is selected for EXT mode. EXT indication appears when "EXT" is selected. A stroke rate appears when a spm indication is selected. NOTE •...
  • Page 57 Push the DOWN key while pressing the UP key to call up the display selection screen. STROKE RATE STROKE RATE Push the UP or DOWN key to select "E-EX" (EXT indication) or "E-SP" (spm indication). EXT indication spm indication STROKE RATE STROKE RATE Push the start/stop key to return to EXT mode.

  • Page 58: Stop Function

    STOP function The start/stop of the pump operation can be controlled by the external stop signal. • Operation stop at the stop signal input: "M-OF" The pump stops while receiving the stop signal. • Operation starts at the stop signal input: "M-ON" The pump runs while receiving the stop signal.
  • Page 59 Push the DOWN key and call up the STOP function programming screen. "M-OF" (default setting) or "M-ON" appears on the screen. STROKE RATE STROKE RATE Push the UP key to select "M-OF" (stop during the signal input) or "M-ON" (run during the signal input). STROKE RATE STROKE RATE Push the start/stop key to return to manual mode.

  • Page 60: Stop Function Cancellation

    ■ STOP function cancellation A stop state can be cancelled if the current selection is changed. Example) M-OF→M-ON M-ON→M-OF Enter the wait state in the manual mode with the STOP function ac- tive. "-STOP" appears on the screen. • If the screen shows "STOP" or the pump is in the EXT mode, push the start/stop key to enter the "-STOP"...
  • Page 61 Push the UP key and change the current selection. If "M-OF" is selected, change it to "M-ON". If "M-ON" is selected, change to "M-OF". When "M-OF" is selected STROKE RATE STROKE RATE Push the start/stop key to return to the wait state in manual mode. STROKE RATE STROKE RATE The STOP function now has been cancelled.

  • Page 62: Keypad Lock

    Keypad lock Keypad lock can be active in the following states for the prevention of errone- ous key operation. Manual mode Wait state During operation STROKE RATE STROKE RATE EXT mode STROKE RATE NOTE • Any key operation is not acceptable when the keypad lock is active. In an emergency, unplug the pump to stop operation.
  • Page 63 ■ Activate keypad lock Push the start/stop key for more than three seconds. STROKE RATE The following indication appears once keypad is locked. Wait state in manual mode EXT mode STROKE RATE STROKE RATE ■ Release the keypad lock state Push the start/stop key for more than three seconds.

  • Page 64: Maintenance

    Maintenance This section describes troubleshooting, inspection, wear part replacement, exploded views and specifications. Important • Observe instructions in this manual for maintenance, inspection, disman- tlement and assembly. Do not dismantle the pump beyond the extent of the instructions. • Always wear protective clothing such as an eye protection, chemical resistant gloves, a mask and a work cap during dismantlement, assembly or maintenance work.

  • Page 65: Troubleshooting

    Troubleshooting First check the following points. If the following measures do not help removing problems, contact us or your nearest dealer. States Possible causes Solutions Power voltage is too low. • Recover the power voltage to a The pump does not normal level.
  • Page 66 Liquid leaks. Loose fit of the fitting or the air vent • Retighten them. body. Loose fit of the pump head. • Retighten the pump head. See page 32. O rings or valve gaskets are not • Install O rings and valve gaskets. installed.

  • Page 67: Inspection

    Inspection Perform daily inspection and periodic inspection to keep pump performance and safety. Daily inspection Check the following points. Upon sensing abnormal condition, stop operation immediately and remove problems according to "Troubleshooting". When wear parts come to the life limit, replace them by new ones. Contact us or your nearest dealer for detail.

  • Page 68: Wear Part Replacement

    Wear part replacement For a long operation wear parts need to be replaced periodically. It is recommended that the following parts are always stocked for immediate replacement. Contact us or your nearest dealer for detail. Precautions • When dismantling the pump, pay attention to the residual liquid in the pump.

  • Page 69: Before Replacement

    * Wear part duration varies with the pressure, temperature and characteristics of the liquid. * The estimated life is calculated based on the continuous operation with ambient clean water. Before replacement First release the pressure from the pump. Stop the pump operation. Rotate the adjusting screw two revolutions anticlockwise to open the air vent port.
  • Page 70 EHN- 11•16•21 Fitting nut Loosen the fitting nut and remove a dis- charge tube and an air bleed tube. Air bleed tube Discharge tube Turn the lock nut anticlockwise by Lock nut an adjustable wrench and remove Air vent body A the air vent body A.
  • Page 71 Air vent body B Place a new valve set into the pump head. Screw the air vent body B into the pump head Lock nut through the lock nut. * Be careful not to misarrange the valve set or misplace upside down.

  • Page 72: Suction Valve Set Dismantlement/Assembly

    Place a new valve set into the pump head. Screw the fitting into the pump head and turn it clock- wise about 90 degrees by an adjustable wrench Fitting or a spanner. * Be careful not to misarrange the valve set or misplace upside down.

  • Page 73: Diaphragm Replacement

    Pull out the valve set by a pair of tweezers. Screw the fitting into the pump head with the valve set in it and turn it anticlockwise about 90 degrees by an adjustable wrench or Valve set a spanner. * Be careful not to misarrange the valve set or mis- place upside down.
  • Page 74 Run the pump and set the stroke length to 0%. Then stop the pump. Loosen the fitting nuts and remove a suction tube, Fitting nut a discharge tube and an air bleed tube. Air bleed tube Discharge tube Suction tube Remove the pump head by a hexagon wrench.
  • Page 75 NOTE Mating parts • Fit the retainer to the diaphragm with its round edge to the diaphragm. Bracket • Check that the bracket spacer is in place. Refit the bracket spacer into the bracket, combining mating parts as necessary. Bracket spacer Screw the diaphragm all the way seated in the plunger.

  • Page 76: Exploded View

    Exploded view Pump head, Drive unit & Control unit The pump in the diagram below is completely dismantled. Do not dismantle the pump beyond the extent shown in this instruction manual. Air vent Control unit Fixing screw Gasket M3×35 Cord gasket Cord nut Gasket Diaphragm...

  • Page 77: Pump Head

    Pump head ■ EHN-[B11•B16•B21•C16•C21][VC•VH•PC•PH] Part names # of parts Pump head Fitting Fitting nut Air vent body B Lock nut Diaphragm Retainer 10 Air vent body A 11 Valve guide 12 Valve seat 13 Valve 14 Valve gasket 17 O ring 18 Diaphragm spacer 19 Hex.

  • Page 78: Ehn-[B31•C31•C36][Vc•Vh•Pc•Ph]

    ■ EHN-[B31•C31•C36][VC•VH•PC•PH] Part names # of parts Pump head Fitting Fitting nut Diaphragm Retainer 11 Valve guide 12 Valve seat 13 Valve 14 Valve gasket 17 O ring 18 Diaphragm spacer 19 Hex. socket head bolt [PW•SW] * The number of diaphragm spacers varies with pump model.

  • Page 79: Ehn- Pp

    ■ EHN- PP Part names # of parts Pump head Fitting 1(2) Fitting nut 3(2) Air vent body B 1(0) Lock nut 1(0) Diaphragm Retainer 10 Air vent body A 1(0) 11 Valve guide 12 Valve seat 13 Valve 14 Valve gasket 17 O ring 18 Diaphragm spacer 19 Hex.

  • Page 80: Ehn- Fc

    ■ EHN- FC Part names # of parts Pump head Fitting Fitting nut Diaphragm Retainer 11 Valve guide 12 Valve seat 13 Valve 14 Valve gasket 17 Gasket 18 Diaphragm spacer 19 Hex. socket head bolt [PW•SW] * The number of diaphragm spacers varies with pump model.

  • Page 81: Ehn-[C31•C36]Vh/Ph-V

    ■ EHN-[C31•C36]VH/PH-V Part names # of parts Pump head Fitting Fitting nut Diaphragm Retainer 11 Valve guide 12 Valve seat 13 Valve 14 Valve gasket 17 O ring 18 Diaphragm spacer 19 Hex. socket head bolt [PW•SW] 36 Valve spacer * The number of diaphragm spacers varies with pump model.

  • Page 82: Check Valve (Vc•Vh•Pc•Ph)

    Check valve (VC•VH•PC•PH) Part names # of parts Fitting nut Valve case Poppet Spring Spacer 1 (0) Valve fitting A O ring O ring The parenthetic figure is for the CA-2 82 Exploded view...

  • Page 83: Specification/Outer Dimension

    Specification/Outer dimension Specification Specifications and apparent condition are subject to change without notice. ■ Pump unit VC•VH•PC•PH•PP Max. Stroke Power Tube connec- Current Model code Flow rate discharge length Stroke rate consump- Weight tion bore value mℓ/min pressure tion EHN-B11 EHN-B16 ø4×ø9 0.5-1.0...
  • Page 84 PH-H (High compression type) Power Max. Stroke Flow Stroke Tube con- con- Current discharge length Weight Model code rate rate nection bore sump- value pressure mℓ/min tion 0.5-1.0 EHN-B11PH-H (50-100) IN: ø4×ø9 1-360 OUT: ø4×ø6 0.5-1.25 EHN-C16PH-H (40-100) VH/PH-V type (Viscosity type) Power Max.

  • Page 85: Control Unit

    ■ Control unit Manual Mode Operation mode EXT (Multiply or divide) Mode selection Key operation Setting range 1-360spm (1-300spm for VH/PH-V) Stroke rate Spm programming UP or DOWN key M-OF The pump stops during contact input. STOP function M-ON The pump runs during contact input. Input signal No-voltage contact or open collector* Upper limit spm...

  • Page 86: Accessories

    Accessories Unit (mm) Model identification Connection Applicable pump Wet end pressure code bore mm ends model code CA-1VC-4 EHN-B11•16•21 ø4×ø9 EHN-C16•21 CA-1VE-4 0.17 CA-2VC-8 EHN-C31 CA-2VE-8 ø8×ø13 CA-2VCL-8 EHN-B31 0.05 EHN-C36 CA-2VEL-8 CA-1V-4 PC/PP EHN-B11•16•21 ø4×ø9 EHN-C16•21 CA-1E-4 0.17 CA-2V-8 PC/PP GFRPP EHN-C31...

  • Page 87: Outer Dimensions

    Outer dimensions ■ EHN-[B11•B16•B21] [VC•VH•PC•PH•PP] (192) (37) (21) (25) 81.5 7 16 10 ■ EHN-B31[VC•VH•PC•PH•PP] (173) (16) (27) (21) 81.5 7 16 10 Specification/Outer dimension...

  • Page 88: Ehn-[C16•C21] [Vc•Vh•Pc•Ph•Pp]

    ■ EHN-[C16•C21] [VC•VH•PC•PH•PP] (210.5) (37) (18) (27) 15 18 12 ■ EHN-[C31•C36] [VC•VH•PC•PH•PP] (191.5) (16) (18) (29) 15 18 12 88 Specification/Outer dimension...

  • Page 89: Ehn-[B11•B21]Fc

    ■ EHN-[B11•B21]FC (167) (12) (21) (25) 81.5 7 16 10 ■ EHN-[C21]FC Specification/Outer dimension...

  • Page 90: Ehn-[C31•C36]Fc

    ■ EHN-[C31•C36]FC (191.5) (16) (18) (29) 90 Specification/Outer dimension...
  • Page 92 TEL : (47)66 81 16 60 FAX : 66 81 16 61 China IWAKI Pumps (Guandong) Co., Ltd. TEL : (86)750 3866228 FAX : 750 3866278 Singapore IWAKI Singapore Pte. Ltd. TEL : (65)6316 2028 FAX : 6316 3221 China GFTZ IWAKI Engineering &...

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