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24 Pipework

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.

• The suction side liquid level is higher than the discharge side (See the diagram

below). Or an injection point is below the suction side liquid level at atmospheric
pressure.

• The elevation difference between two liquid levels is

ve meters or below,

even if the discharge side liquid level is higher than the suction side.

• Suction side pressure is higher than the discharge side pressure.

• Discharge pressure (including pipe resistance and discharge head) is below

0.13MPa. (0.049MPa for B31 and C36).

Suction side

Discharge side

Suction side

Discharge side

5m or below

Содержание EHN-R

Страница 1: ...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...

Страница 2: ...a Check if the delivery is as per order Check the nameplate to see if the dis charge capacity discharge pressure and voltage are as per order b Check if accessories are complete A check valve or a ba...

Страница 3: ...ture Operating principle 12 Features 13 Operational function 13 Part names 16 Pump 16 Operational panel 17 Basic displays Pump states 18 Identification codes 19 Pump Drive units 19 Control unit 20 Ins...

Страница 4: ...Stroke length adjustment 41 Before a long period of stoppage One month or more 42 Operation programming 43 Programming flow 44 Manual operation 46 EXT operation 47 EXT mode 47 EXT mode programming 49...

Страница 5: ...VC VH PC PH 77 EHN B31 C31 C36 VC VH PC PH 78 EHN PP 79 EHN FC 80 EHN C31 C36 VH PH V 81 Check valve VC VH PC PH 82 Specification Outer dimension 83 Specification 83 Pump unit 83 Control unit 85 Powe...

Страница 6: ...g Caution Pro hibition and Requirement Indicates mishandling could lead to personal or property damage CAUTION Caution marks Prohibition mark Requirement mark Safety instructions Safety instructions P...

Страница 7: ...e pump Remodelling the pump carries a high degree of risk We are not responsible for any failure or injury results from remodelling Wear protective clothing Always wear protective clothing such as an...

Страница 8: ...o run dry If the pump run dry for a long period for more than 30 minute the pump head and valve case may deform by friction heat and consequently leakage results Do not wet electric parts or wiring Ri...

Страница 9: ...antle the pump beyond the extent of the instructions Do no use a damaged pump Using a damaged controller could lead to an electric leak or shock Disposal of the used pump Dispose of any used or damage...

Страница 10: ...o vibrate If the pump is installed at a tilt the flow may reduce When two or more pumps are installed the pump opera tion interacts each other and vibration becomes significant resulting in poor perfo...

Страница 11: ...arge line during operation Other wise liquid may leak or tubing may break Remove the control unit only when necessary Note that an applicable control unit differs with each drive unit Do not at tach a...

Страница 12: ...directly driven by electromagnetic force Principle of operation The pulse signal controls the electromagnetic force and spring force in order to make reciprocating motion The reciprocating motion is t...

Страница 13: ...re The sealed drive unit and control unit assure IP66 This pump is not completely water resistant Protect the pump with a cover when installing it out of doors Operational function Manual operation se...

Страница 14: ...shots per signal is completed The storage function stores up to 255 pulses Divider programming See page 52 1 999 pulse signals can be allocated to make one shot The pump can not run over 360spm even i...

Страница 15: ...le receiving the STOP signal The pump resumes operation when the stop signal is released Operation starts at the STOP signal input M ON The pump runs while receiving the STOP signal The pump stops ope...

Страница 16: ...next page Air vent port Always connect a tube Be sure to return the tube end to the supply tank or another container The air vent port can rotate 90 degrees Stroke length adjusting knob Used for adju...

Страница 17: ...tate the pump enters EXT mode LED Lights as the pump is turned on and blinks at each shot UP key Used for increasing numeric val ues or selecting a programming mode Pushing the UP key while pressing t...

Страница 18: ...the stop signal in the manual wait state Anti chattering programming T 5 T 10 and T50 are the ap proximate time msec to read the external pulse signal Divide is selected in EXT mode Multiply is select...

Страница 19: ...20mm 31 30mm 36 35mm d Wet end materials Code Pump head Valve O ring Valve seat Gasket Diaphragm VC PVC Alumina ceramic FKM FKM PTFE PTFE EPDM EPDM is not a wet end VH HC276 EPDM EPDM PC GFRPP Alumin...

Страница 20: ...be FC type only 1 2 IN 4 9 OUT 4 6 IN PVC braided tube OUT Nylon tube PH H type only means Special version Others are standard specification f Control unit function code R Standard g Special version c...

Страница 21: ...ammable goods near the pump for your safety Risk of an electrical leak or shock Do not use a damaged pump Pump mounting Select an installation location and mount the pump Necessary tools Four M5 bolts...

Страница 22: ...fitting nut and insert a tube end all the way seated on the fitting Then hand tighten the fitting nut b Retighten the fitting nut by turning it 180 degrees with an adjustable wrench or spanner The fi...

Страница 23: ...c Turn the lock nut clockwise and fix it holding the air vent body A d Further tighten the lock nut by turn ing it 90 degrees with an adjustable wrench or spanner NOTE The air vent port is not provide...

Страница 24: ...ge side See the diagram below Or an injection point is below the suction side liquid level at atmospheric pressure The elevation difference between two liquid levels is five meters or below even if th...

Страница 25: ...for FC type The CB check valve of which the both ends are tube connection is also avail able Contact us or your nearest dealer CB check valve NOTE Periodically clean or replace the check valve with ne...

Страница 26: ...ntrol unit may break Do not perform wiring work while the power is on Otherwise an electri cal shock and short circuit may result and consequently the pump may fail Be sure to turn off power before wi...

Страница 27: ...r is applied gradually Surge voltage The electronic circuit in the control unit may fail due to surge voltage Do not place the pump close to the high power equipment of 200V or more which may generate...

Страница 28: ...N the maximum ON OFF operation is about 150 000 times Use the relay with the contact capac ity of 10A or more when making ON OFF operation over 150 000 times or sharing a power source with a large cap...

Страница 29: ...uch as catalogues for detail OMRON G3FD 102S or G3FD 102SN OMRON G3TA IDZR02S or G3TA IDZR02SM When using a contact type relay for the EXT STOP signal input the minimum applica tion load should be 5mA...

Страница 30: ...ler cover and the controller case are sealed by a case gasket Do not forger to fit the case gasket when mounting the control ler cover Remove a cord nut and a cap and pull out a cord gasket The cap is...

Страница 31: ...t is used When an open collector signal is used Attach the controller in a reverse way of the item 1 and 2 Tightening torque Fixing screw For mounting control unit 0 39 N m Tapping screw A For mountin...

Страница 32: ...is free from the risk of short circuit and electri cal leakage Retightening of pump head fixing bolts Important The pump head fixing bolts may loosen when plastic parts creep due to tem perature chan...

Страница 33: ...e pump Perform degassing in the following cases When the pump starts to run for the first time When the flow rate is too low After liquid is replaced in the supply tank After a long period of stoppage...

Страница 34: ...t setting The pump calls up the last screen at a shutoff if it was not in a default setting Program the stroke rate to 360spm This programming is not necessary when the display already shows 360 Move...

Страница 35: ...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 Check connections fo...

Страница 36: ...esuming the pump operation after liquid replacement in the supply tank or after a long period of stoppage the inter nal pressure may remain in the pump or tubing Removing the check valve at this state...

Страница 37: ...00spm for the VH PH V Push the start stop key and run the pump for more than ten min utes The LED and spm indication blink during operation Push the start stop key and stop the pump Check that gas has...

Страница 38: ...t Use stroke length adjust ment for the range where stroke rate adjustment can not reach Determine a suitable stroke length and stroke rate taking account of the pump operating condition and liquid ch...

Страница 39: ...ength is set short Stroke rate adjustment Stroke rate can be set by keypad operation The stroke rate can be programmed from 1 to 360spm 1 to 300spm for VH PH V The relation between a flow rate and str...

Страница 40: ...m 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...

Страница 41: ...or C type The relation between a flow rate and stroke length is shown as below The flow rate described on the nameplate is at 100 NOTE Do not rotate the stroke length adjusting knob when the pump is n...

Страница 42: ...pump Always stop the pump by key operation Wait for three seconds before un plugging the pump Otherwise the last key operation to stop the pump may not be put in memory In this case the pump unintenti...

Страница 43: ...ming 3 T 5 T 5 T 10 T 50 STOP function 4 M OF M ON M OF 1 The upper limit spm in EXT mode 2 spm increases decreases as pushing the UP DOWN keys Pressing either key for more than three seconds spm chan...

Страница 44: ...tering programming Stroke rate setting Manual mode Manual operation STOP function programming M ON is selected Stand by STOP function is active M OF is selected Operating state Operation programming P...

Страница 45: ...ider setting Multiplier setting Multiplier Divider programming spm indication or EXT mode or Operation programming Key operation is not accepted in the following displays once keypad lock became activ...

Страница 46: ...setting The pump calls up the last screen at a shutoff if it was not in a default setting Enter manual mode Move to the next step when spm 1 360 is shown on the screen When EXT or 0 360 is on the scr...

Страница 47: ...pushed again Programmable range is 1 300spm for the VH PH V Push the start stop key The LED and spm indication blink as the pump starts to run They blink in sync with the pump operation EXT operation...

Страница 48: ...the start stop key when EXT or 0 360 is on the screen When STOP or STOP appears on the screen see STOP function cancellation on 60 page and release the STOP function Use the UP or DOWN key to program...

Страница 49: ...time of the pulse signal is programmed in consideration of the ac crual of chattering in order to reduce noise Display selection Either EXT or spm indication is selected for EXT mode NOTE Pushing the...

Страница 50: ...mode Push the DOWN key while pressing the start stop key to move from manual mode to EXT mode Push the start stop key and stop the pump when the pump is running Then call up EXT mode Push the UP key a...

Страница 51: ...m a multiplier A multiplier 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...

Страница 52: ...al operation spm but not exactly in synchronization irregular operation may occur This irregular operation occurs as the external signal is cancelled Note that this is not malfunction In order to avoi...

Страница 53: ...de X NNN Multiply or NNN Divide can be selected by the UP and DOWN keys Push the start stop key to return to EXT mode Push the DOWN key and call up the divider programming screen ON STROKE RATE ON STR...

Страница 54: ...ng to the divider programming Anti chattering programming The read time of the pulse signal is programmed in consideration of the accrual of chattering in order to reduce noise Normally select T 5 def...

Страница 55: ...h T 5 T 10 and T 50 T 5 T 10 and T50 are the approximate time msec to read the external pulse signal The controller becomes more resistant to chattering as read time is set longer but then becomes les...

Страница 56: ...oke rate The number of external pulse signals is not shown on the screen Note that the stroke rate shown in EXT mode is an calcu lated spm and doesn t reflect a current spm exactly Do not enter the EX...

Страница 57: ...or DOWN key to select E EX EXT indication or E SP spm indication Push the start stop key to return to EXT mode EXT appears on the screen when EXT indication is selected EXT indication spm indication...

Страница 58: ...starts at the stop signal input M ON The pump runs while receiving the stop signal STOP function programming Enter manual mode Push the start stop key to return to manual mode if the pump is in EXT m...

Страница 59: ...r M ON appears on the screen Push the UP key to select M OF stop during the signal input or M ON run during the signal input Push the start stop key to return to manual mode The screen indicates that...

Страница 60: ...n the EXT mode push the start stop key to enter the STOP state Move to the next step if the pump is in the STOP state Push the UP key while pressing the start stop key to call up the anti chattering p...

Страница 61: ...election If M OF is selected change it to M ON If M ON is selected change to M OF Push the start stop key to return to the wait state in manual mode The STOP function now has been cancelled When M OF...

Страница 62: ...o stop operation In this case keypad lock state is recalled when the pump is turned on Pressing the start stop key for three seconds keypad lock becomes active even when the pump is receiving the STOP...

Страница 63: ...e following indication appears once keypad is locked Release the keypad lock state Push the start stop key for more than three seconds Keypad lock is released and key operation becomes acceptable ON S...

Страница 64: ...protective clothing such as an eye protection chemical resistant gloves a mask and a work cap during dismantlement assembly or maintenance work Be sure to turn off power to stop the pump and related...

Страница 65: ...100 stroke length and adjust it to proper length Air ingress through suction line Correct tubing A valve set is installed upside down Reinstall the valve set Valve gaskets are not installed Install v...

Страница 66: ...them Loose fit of the pump head Retighten the pump head See page 32 O rings or valve gaskets are not installed Install O rings and valve gaskets Diaphragm is broken Replace the diaphragm Excessive dis...

Страница 67: ...ration If abnormal noise or vibration occurs They are signs of abnormal operation Visual or audio inspection 3 Air ingress from pump head joints and a suction line If leakage occurs If discharge liqui...

Страница 68: ...l liquid in the pump Rinse wet ends thoroughly with water Each time the pump head is dismantled replace the diaphragm O rings valve gaskets and valve sets with new ones Wear part list Parts of parts E...

Страница 69: ...se liquid may comes out from the adjusting screw Check that liquid comes out from the air vent port and the internal pressure has been released NOTE The internal pressure may not be expelled completel...

Страница 70: ...d an air bleed tube Turn the lock nut anticlockwise by an adjustable wrench and remove the air vent body A Remove the air vent body B by the 17mm box wrench Pull out the valve set by a pair of tweezer...

Страница 71: ...r flow rate reduc tion may result Do not forget to fit O rings and gaskets Keep the valve set free from dust or foreign matters Remount the air vent body A and connect tubes EHN 31 36 Remove the fitti...

Страница 72: ...down Otherwise leakage or flow rate reduction may result Do not forget to fit O rings and gaskets Keep the valve set free from dust or foreign matters Reconnect the discharge tube Suction valve set d...

Страница 73: ...get to fit O rings and gaskets Keep the valve set free from dust or foreign mat ters Reconnect the suction tube Diaphragm replacement Necessary tools Adjustable wrench or spanner Hexagon wrench Torque...

Страница 74: ...ion tube a discharge tube and an air bleed tube Remove the pump head by a hexagon wrench Rotate and remove the diaphragm from the plunger pump shaft Set a retainer and diaphragm spacer s on the diaphr...

Страница 75: ...nd set the stroke length to 100 Then stop the pump Mount the pump head Tighten the pump head fixing bolts diagonally and evenly Tightening torque Model identification code Torque Bolts EHN B11 16 21 2...

Страница 76: ...his instruction manual Wet end materials and their sizes differ with models See Valve set replacement on page 69 for detail Fixing screw Air vent Valve set Control unit Cord gasket Gasket Cap Cord nut...

Страница 77: ...ting nut 3 5 Air vent body B 1 6 Lock nut 1 7 Diaphragm 1 9 Retainer 1 10 Air vent body A 1 11 Valve guide 4 12 Valve seat 4 13 Valve 4 14 Valve gasket 2 17 O ring 2 18 Diaphragm spacer 19 Hex socket...

Страница 78: ...of parts 1 Pump head 1 3 Fitting 2 4 Fitting nut 2 7 Diaphragm 1 9 Retainer 1 11 Valve guide 4 12 Valve seat 4 13 Valve 4 14 Valve gasket 2 17 O ring 2 18 Diaphragm spacer 19 Hex socket head bolt PW S...

Страница 79: ...Diaphragm 1 9 Retainer 1 10 Air vent body A 1 0 11 Valve guide 4 12 Valve seat 4 13 Valve 4 14 Valve gasket 6 17 O ring 2 18 Diaphragm spacer 19 Hex socket head bolt PW SW 4 23 Adjusting screw 1 0 25...

Страница 80: ...Pump head 1 3 Fitting 2 4 Fitting nut 2 7 Diaphragm 1 9 Retainer 1 11 Valve guide 4 12 Valve seat 4 13 Valve 4 14 Valve gasket 6 17 Gasket 2 18 Diaphragm spacer 19 Hex socket head bolt PW SW 4 The nu...

Страница 81: ...s 1 Pump head 1 3 Fitting 2 4 Fitting nut 2 7 Diaphragm 1 9 Retainer 1 11 Valve guide 2 12 Valve seat 2 13 Valve 2 14 Valve gasket 6 17 O ring 2 18 Diaphragm spacer 19 Hex socket head bolt PW SW 4 36...

Страница 82: ...ew Check valve VC VH PC PH No Part names of parts 1 Fitting nut 1 2 Valve case 1 3 Poppet 1 4 Spring 1 5 Spacer 1 0 6 Valve fitting A 1 7 O ring 1 8 O ring 1 The parenthetic figure is for the CA 2 L 1...

Страница 83: ...value A Weight kg EHN B11 38 1 0 0 5 1 0 50 100 1 360 4 9 20 0 8 1 8 EHN B16 65 0 7 EHN B21 100 0 4 EHN B31 230 0 2 8 13 EHN C16 80 1 0 0 5 1 25 40 100 4 9 24 1 2 2 9 EHN C21 130 0 7 EHN C31 270 0 35...

Страница 84: ...t kg EHN C31VH PH V 220 0 35 0 5 1 25 40 100 1 300 8 13 24 1 2 2 9 EHN C36VH PH V 350 0 2 These specifications are based on pumping ambient clean water at rated voltage Flow rate is collected at the m...

Страница 85: ...igit Operation Green LED Blinks at each shot Storage function Non volatile memory Power voltage 4 100 240VAC 50 60Hz 1 The maximum applied voltage to the contact is 12V at 5mA When using a contact typ...

Страница 86: ...7 4 9 GFRPP EHN B11 16 21 EHN C16 21 PC PP CA 1E 4 PH CA 2V 8 8 13 EHN C31 PC PP CA 2E 8 PH CA 2VL 8 0 05 EHN B31 EHN C36 PC PP CA 2EL 8 PH CS 1E 2 0 12 4 6 SUS304 EHN B11 EHN C16 PH H BP valve BVC 1T...

Страница 87: ...ication Outer dimension Outer dimensions EHN B11 B16 B21 VC VH PC PH PP EHN B31 VC VH PC PH PP OUT AIR 184 150 90 26 100 5 192 37 25 81 5 21 88 7 16 10 32 6 2 IN 173 OUT 16 21 81 5 27 IN 88 7 16 10 32...

Страница 88: ...Outer dimension EHN C16 C21 VC VH PC PH PP EHN C31 C36 VC VH PC PH PP 191 5 OUT 16 18 105 29 IN 100 7 8 37 15 18 12 7 95 8 116 18 100 182 189 210 5 37 OUT 18 105 27 IN 95 100 7 8 37 15 7 18 12 8 116 3...

Страница 89: ...89 Specification Specification Outer dimension EHN B11 B21 FC EHN C21 FC IN OUT 167 12 21 25 81 5 100 5 27 90 153 174 88 6 2 7 16 10 32 54...

Страница 90: ...90 Specification Outer dimension EHN C31 C36 FC IN OUT 191 5 16 18 29 105 7 7 100 95 8 37 15 18 12 8 116 18 5 100 181 5 189...

Страница 91: ...91...

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