Walchem EH Series, Instruction Manual

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3
1.4 Specifications
Electrical 50/60 Hz, single phase
EHB/EZB 115 VAC
±
10% 0.9 Amp max. 16 watt avg.
230 VAC
±
10% 0.4 Amp max. 16 watt avg.
EHC/EZC 115 VAC
±
10% 1.4 Amp max. 24 watt avg.
230 VAC
±
10% 0.6 Amp max. 24 watt avg.
Operating Conditions
Ambient temperature 32
°
F to 122
°
F (0
°
C to 50
°
C)
Relative humidity 30% to 90% non-condensing
Liquid temperature 32° to 104°F (0 to 40°C) for PVC based liquid ends
32° to 140°F (0 to 60°C) for PP, PVDF, SS based liquid ends
Capacity/Pressure Rating
Maximum
Output Capacity
Output
per Stroke (mL)
Maximum
Pressure
3
Size
(Gal/hr) (mL/min) Min. Max. PSI MPa
Connection
Size (in)
Tubing O.D
2
B10
1
0.6 38 0.05 0.11 150 1.0 3/8
B10(H) 0.5 30 0.04 0.08 215 1.5 3/8
B15
1
1.0 65 0.09 0.18 105 0.7 3/8
B20
1
1.5 95 0.13 0.26 60 0.4 3/8
B30
1
3.2 200 0.28 0.56 30 0.2 1/2
C15 1.3 80 0.09 0.22 150 1.0 3/8
C15(H) 0.8 50 0.06 0.14 215 1.5 3/8
C20 2.0 130 0.14 0.36 105 0.7 3/8
C30 4.3 270 0.30 0.75 50 0.35 1/2
C35
4
6.7
4
420
4
0.46 1.17 30 0.2 1/2
1
Available sizes for EZ pumps
2
1/4” NPT female for 316 SS
3
Auto Air vent valve reduces maximum pressure approx. 35 PSI (0.2 MPa)
4
EZC35 rated output is 6.3 GPH (400 ml/min)
Adjustment Range
Stroke length adjustment range 40% to 100% (EHB and EHC only)
Frequency adjustment range 0 to 360 strokes per minute
Materials of Construction
Liquid End
Code
Pump Head
& Fittings
Diaphragm
Valve
Balls
Valve
Seat
Valve
Seals
Gasket Tubing
PC GFRPP CE FKM FKM
PE GFRPP CE EPDM EPDM
VC PVC CE FKM FKM
VE
PVC CE EPDM EPDM
VF PVC PTFE EPDM EPDM
TC PVDF CE FKM FKM
FC PVDF CE PCTFE PTFE
PE
SH SS
PTFE
(bonded to
EPDM)
HC HC PTFE
PTFE
¼” NPTF
CE Alumina ceramic PE Polyethylene
EPDM Ethylene propylene diene monomer PTFE Polytetrafluoroethylene
FKM Fluoroelastomer PVC Polyvinylchloride (translucent)
GFRPP Glass fiber reinforced polypropylene PVDF Polyvinylidenefluoride
HC Hastelloy C276 SS 316 stainless steel
PCTFE Polychlorotrifluoroethylene