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EHE30, 35, 45 Head Assembly 

Item 

Part No 

Description 

   Qty

 

Size 

Liquid 

End Mtl 

Item 

Part No

Description 

Qty

 

Size 

Liquid End Mtl 

EH0617  Head, E30 PVC 

30 

VC,VE,VF 

*13

EH0120

Ball, Valve, 0.375 CE 

30 35 

VC,VE, PC, PE, FC 

 

EH0674  Head, E30 GFRPP 

30 

PC, PE 

 

E00062 

Ball, Valve, 0.375, PTFE 

30,35 

VF 

 

EH0953  Head, E30 PVDF 

30 

FC 

 

EH0646

Ball, Valve, 0.500, CE 

45 

VC,VE, PC, PE, FC 

 

EH0156  Head, E35 PVC 

35 

VC,VE,VF 

 

E00072 

Ball, Valve, 0.500, PTFE 

45 

VF 

 

EH0336  Head, E35 GFRPP 

35 

PC, PE 

*14

EH0121

Gasket, Valve, 0.375 PTFE 

30, 35 

VC,VE,PC,PE,VF 

 

EH0357  Head, E35 PVDF 

35 

FC 

 

EH0354

Gasket, Valve, 0.375 PTFE 

30, 35 

FC 

 

EH0638  Head, E45 PVC 

45 

VC,VE,VF 

 

EH0648

Gasket, Valve, 0.500, PTFE 

45 

VC,VE,PC,PE,VF 

 

EH0678  Head, E45 GFRPP 

45 

PC, PE 

 

EH0936

Gasket, Valve, 0.500, PTFE 

45 

FC 

 

EH0931  Head, E45 PVDF 

45 

FC 

*15

EH0028

O-Ring, P12 FKM 

30, 35, 45  VC, PC 

EH0619  Housing, Valve, ½ PVC 

30,35 

VC,VE,VF 

 

EH0051

O-Ring, P12 EPDM 

30, 35, 45  VE, PE, VF 

 

EH0675  Housing, Valve, ½ GFRPP 

30,35 

PC, PE 

 

EH0939

Gasket, Adapter, PTFE 

30, 35, 45  FC 

 

EH0947  Housing, Valve, ½ PVDF 

30,35 

FC 

*17 

EH0122

O-Ring, P16 FKM 

30, 35 

VC, PC 

 

E90089 

Housing, Valve, ½ PVC 

45 

VC,VE,VF 

 

EH0127

O-Ring, P16 EPDM 

30, 35 

VE, PE, VF 

 

E90088 

Housing, Valve, ½ GFRPP 

45 

PC, PE 

 

EH0650

O-Ring, 24 x 2.62, FKM 

45 

VC, PC 

 

E90310 

Housing, Valve, ½ PVDF 

45 

FC 

 

EH0649

O-Ring, 24 x 2.62 EPDM 

45 

VE, PE, VF 

EH0620 Nut, 

Coupling, ½ PVC 

30, 35, 45 

VC,VE,VF 

 

EH0355

Gasket, Housing, PTFE 

30, 35 

FC 

 

EH0676 Nut, 

Coupling, ½ GFRPP 

30,35,45 

PC, PE 

 

EH0941

Gasket, Housing, PTFE 

45 

FC 

 

EH0933 Nut, 

Coupling, ½ PVDF 

30,35,45 

FC 

19 

EH0384

Bolt 4/6 

30, 

35/45 

all 

EH0719  Adapter, ½, PVC 

30,35,45 

VC,VE,VF 

20 

EH0161

Washer, M5 Flat 

4/6  30, 35/45  all 

 

EH0734  Adapter, ½ GFRPP 

30,35,45 

PC, PE 

21 

EH0160

Washer, M5 Lock 

4/6  30, 35/45  all 

 

EH0938  Adapter, ½ PVDF 

30,35,45 

FC 

*22

EH0302

O-Ring, Knob, Seal 

30, 35, 45  VC, PC 

*6 

EH0720  Clamp Ring, 1/2 SS 

3 (2)  30,35,45 

All (FC) 

 

EH0303

O-Ring, Knob, Seal 

30, 35, 45  VE, PE, VF 

*8 

E90084 

Diaphragm and Retainer 

30 

all 

*23

EH0300

O-Ring, Knob, Stop 

30, 35, 45  VC, PC 

 

E90085 

Diaphragm and Retainer  

35 

all 

 

EH0301

O-Ring, Knob, Stop 

30. 35. 45  VE, PE, VF 

 

E90086 

Diaphragm and Retainer 

45 

all 

*24

EH1082

O-Ring, Fitting Seal 

30, 35 

VC, PC 

8a 

EH0621 Diaphragm, 

PTFE/EPDM 

1  30 

all 

 

EH1084

O-Ring, Fitting Seal 

30, 35 

VE, PE, VF 

 

EH0636 Diaphragm, 

PTFE/EPDM 

1  35 

all 

 

EH0122

O-Ring, Fitting Seal 

45 

VC, PC 

 

EH0641 Diaphragm, 

PTFE/EPDM 

1  45 

all 

 

EH0127

O-Ring, Fitting Seal 

45 

VE, PE, VF 

8b 

EH0622 Retainer, 

Diaphragm 

1  30 

all 

25 

EH0299

Adjustment Knob 

30, 35, 45  VC, VE, VF 

 

EH0637 Retainer, 

Diaphragm 

1  35 

all 

 

EH0321

Adjustment  Knob 

30, 35, 45  PC,  PE 

 

EH0642 Retainer, 

Diaphragm 

1  45 

all 

26 

EH1662

Manual Air Vent Valve Body 

30, 35, 45  VC,  VE,  VF 

*11 

EH0118  Guide, Valve 0.375 PVC 

30,35 

VC,VE,VF 

 

EH1665

Manual Air Vent Valve Body 

30, 35, 45  PC,  PE 

 

EH0332  Guide, Valve 0.375 GFRPP 

30,35 

PC, PE 

27 

EH1078

Valve Housing MAVV 

30, 35 

VC, VE, VF 

 

EH0352  Guide, Valve 0.375 PVDF 

30,35 

FC 

 

EH1088

Valve Housing MAVV 

30, 35 

PC, PE 

 

EH0643  Guide, Valve 0.500 PVC 

45 

VC,VE,VF 

 

EH1660

Valve Housing MAVV 

45 

VC, VE, VF 

 

EH0680  Guide, Valve 0.500 GFRPP 

45 

PC, PE 

 

EH1663

Valve Housing MAVV 

45 

PC, PE 

 

EH0934  Guide, Valve 0.500 PVDF 

45 

FC 

28 

EH1674

Lock Nut, MAVV 

30, 35 

VC, VE, VF 

*12 

EH0119  Seat, Valve 0.375 FKM 

30, 35 

VC, PC 

 

EH1675

Lock Nut, MAVV 

30, 35 

PC, PE 

 

EH0623  Seat, Valve, 0.375 EPDM 

30, 35 

VE, PE, VF 

 

EH1661

Lock Nut, MAVV 

45 

VC, VE, VF 

 

EH0593  Seat, Valve, 0.375 PCTFE 

30, 35 

FC 

 

EH1664

Lock Nut, MAVV 

45 

PC, PE 

 

EH0644  Seat, Valve, 0.500 FKM 

45 

VC, PC 

ZZ

---------

 

Brass Spacers 

Drive specific/Re-use when 
replacing diaphragm

 

 

EH0645  Seat, Valve, 0.500 EPDM 

45 

VE, PE, VF 

* Included in spare parts kit

 

 

EH0935  Seat, Valve, 0.500 PCTFE 

45 

FC 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22

Summary of Contents for ehe series

Page 1: ...EHE Series Electronic Metering Pump Instruction Manual Five Boynton Road Hopping Brook Park Holliston MA 01746 USA TEL 508 429 1110 FAX 508 429 7433 Website www walchem com...

Page 2: ...from defects in workmanship and material for a period of two years from date of delivery from the factory or authorized distributor under normal use and service and otherwise when such equipment is us...

Page 3: ...Location 6 2 3 Supply Tubing 8 2 4 Discharge Tubing 8 2 5 Installing Injection Back Pressure Valve 9 2 6 Electrical 9 3 0 OPERATION 10 3 1 Priming 10 3 2 Adjustment 10 3 3 Calibration 10 3 4 External...

Page 4: ...hem is not responsible for improper installations Prior to performing any maintenance on a pump depressurize the discharge tubing If you are pumping downhill or into little or no system pressure a bac...

Page 5: ...aphragm Valve Balls Valve Seat Valve Seals Gasket Tubing VC PVC PTFE CE FKM FKM PTFE PE VE PVC PTFE CE EPDM EPDM PTFE PE VF PVC PTFE PTFE EPDM EPDM PTFE PE V6 PVC PTFE SS EPDM EPDM PTFE PE PC GFRPP PT...

Page 6: ...f with enough force and the pump can be turned up above 100 This will cause damage to the pump and void the warranty Model A B C D E F H J L W EHE 30 35 E1 E2 VC PC V6 FC VE PE VF 6 06 1 04 7 76 6 42...

Page 7: ...rical outlet and allows convenient access to stroke length control frequency control and tubing connections Avoid areas where ambient temperature exceeds 122 F 50 C or falls below 32 F 0 C or where th...

Page 8: ...k often works well see Figure 2 The supply tank or cover can also be used if it has provisions for mounting a pump see Figure 3 In any case the total suction lift should not exceed 5 ft 1 5m See Figur...

Page 9: ...f it all the way to the lip of the adapter fitting If the tubing is stiff from cold dip the tubing end in hot tap water for a few minutes so it will slide on and flare out more easily Slide clamp ring...

Page 10: ...valve acts as a back pressure valve when pumping into atmosphere or low pressure applications IMPORTANT Always install the injection back pressure valve at the end of the discharge tubing to prevent o...

Page 11: ...shake cartridges to make sure ball is loose inside Wetting cartridges before re installing will help in priming 3 2 Adjustment The pump will operate best with the stroke length at 100 If less than ful...

Page 12: ...values EXT indicator Visible when pump is operating via external input operation EXT key Push to set pump for external input operation This key is also used to select which external mode and settings...

Page 13: ...ease frequency 1 to 360 SPM Increase frequency 1 to 360 SPM SET EXTERNAL VALUES DIG EXT S S ANA Select divide or X multiply Increase value 1 to 999 Decrease value 1 to 999 Accept data and return to mo...

Page 14: ...ct the positive side to terminal 7 and the negative side to terminal 8 See Figure 8 and the schematic below 4 2 3 5 6 7 8 Power Ground Digital Input Sensor Power DC 12V 10 mA max White NEU Black HOT G...

Page 15: ...press the button to change to DIG and then press START STOP to enter that choice You will be returned to the WAIT state 2 Set multiply or divide To set values for digital operation press EXT and simu...

Page 16: ...n from conductors and connect the positive side to terminal 5 and the negative side to terminal 8 See Figure 8 and the schematic below 4 2 3 5 6 7 8 Power Ground Analog Input Sensor Power DC 12V 10 mA...

Page 17: ...e display will show P0 or some value between 0 and 360 spm with the point 1 indicator highlighted Press or to adjust the value to the desired pump speed for point 1 Press EXT again to display the anal...

Page 18: ...mp is stopped will be saved up to a maximum of 255 When pump operation resumes saved pulses will allow the pump to catch up by producing the correct number of pump strokes that should have occurred wh...

Page 19: ...4 2 Valve Replacement Making sure the discharge side has been depressurized remove the suction and discharge tubing Remove the suction fitting two valve cartridges o ring and gasket s Install the new...

Page 20: ...number ready This is found on the silver label on the side of the pump From the exploded view drawing identify the item number of the part s to be ordered The item numbers are listed and include part...

Page 21: ...30 35 45 55 all E00001 Tubing 1 2 OD LLDPE 20 FT 30 35 45 55 all E00001 50 Tubing 1 2 OD LLDPE 50 FT 30 35 45 55 all E00001 100 Tubing 1 2 OD LLDPE 100 FT 30 35 45 55 all E00001 250 Tubing 1 2 OD LLD...

Page 22: ...5 3 EHE30 35 45 Liquid End Exploded View PVC GFRPP PVDF 21...

Page 23: ...her M5 Lock 4 6 30 35 45 all EH0938 Adapter PVDF 2 30 35 45 FC 22 EH0302 O Ring Knob Seal 1 30 35 45 VC PC 6 EH0720 Clamp Ring 1 2 SS 3 2 30 35 45 All FC EH0303 O Ring Knob Seal 1 30 35 45 VE PE VF 8...

Page 24: ...5 4 EHE 55 Liquid End Exploded View PVC GFRPP PVDF 23...

Page 25: ...66 Gasket Valve 625 PTFE 2 55 V6 VC VE VM PC PE VF EH0921 Gasket Valve 0 625 PTFE 4 55 FC 15 EH0122 O Ring P16 FKM 2 55 VC VM PC EH0127 O Ring P16 EPDM 2 55 V6 VE PE VF EH0924 Gasket Adapter PTFE 2 55...

Page 26: ...ket Terminal Block 1 36 EH0202 Grommet Cord 3 37 EH0205 Nut Strain Relief 3 38 EH0204 Cap Strain Relief 2 39 EH0706 Box Terminal EHE 1 40 EH1036 Gasket Terminal Box 1 41 EH0710 Screw M3 x 50 SS PH 1 4...

Page 27: ...35VF E35V6 E35PC E35PE E35FC EHE45E1 HE45 1 EHC E11UPE 115 V EHE45E2 HE45 2 EHC E23UPE 230 V E45VC E45VE E45VF E45V6 E45PC E45PE E45FC EHE55E1 HE55 1 EHC E11UPE 115 V EHE55E2 HE55 2 EHC E23UPE 230 V E...

Page 28: ...ltage Connect to proper voltage source Electronic control Replace control unit unit is damaged Pump does not Pump stroke length is too short Operate pump with stroke prime length set at 100 until prim...

Page 29: ...ngth knob 0 pump should not pump Diaphragm is damaged Replace diaphragm Worn check valves Replace valve cartridges Liquid leaks Fitting or coupling nut is loose Tighten Pump head is loose Tighten pump...

Page 30: ...Five Boynton Road Hopping Brook Park Holliston MA 01746 USA TEL 508 429 1110 FAX 508 429 7433 Website www walchem com...

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