EWN-R series
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EWN-R series Electromagnetic metering pumps Multi voltage, High-speed operation, Multifunctional controller The high-end electromagnetic metering pump The EWN-R is the diaphragm type electromagnetic metering pump with a built-in multifunctional digital controller. Our technology makes the high-speed operation of 360spm available.

Multi voltage, High-speed operation, Multifunctional controller The high-end electromagnetic metering pump PVC type GFRPP type PVDF type SUS type The EWN-R is the diaphragm type electromagnetic metering pump with a built-in multifunctional digital controller. Our technology makes the high-speed operation of 360spm available. The built-in controller that handles both digital and analogue signals controls operation in various ways. PVC, GFRPP, PVDF or SUS316 pump head is selectable. Also, special pump types for particular purposes are lined up. The user-friendly EWN-R will meet a wide variety...

EWN-R series High resolution Air vent valve The stroke rate can be set with 1spm increments in between 1 and 360spm. The stroke length adjustment further assists fine adjustment that the stroke rate adjustment cannot reach. Contentious precise chemical feeding is now available. Rotating a standard air vent valve, the remained gas can be easily expelled from the pump head. Multi voltage The use of the multi voltage circuit design allows the pump to work anywhere in the world. A wide variation In addition to the standard type of PVC, GFRPP, PVDF or SUS316 pump head, B- or C-type drive unit...

Technical data Construction Valve O-ring Diaphragm Pump head Gasket Valve seat Wet-end materials Pump head VC VH PC PH FC TC SH EPDM EPDM EPDM PCTFE - FKM FKM SUS316 PTFE FKM HC PTFE+EPDM EPDM FKM Gasket FKM CE Diaphragm O-ring FKM HC GFRPP Valve seat CE PVC Valve - PVDF CE SUS316 HC Pump identification EWN - B 11 VC Series symbol EWN-R series Special configuration code H: High pressure type H2: High pressure type (2MPa) Drive unit symbol Average power consumption B: 20W C: 24W Diaphragm diameter Effective diaphragm dia. 09: 8mm 11: 10mm 16: 15mm 21: 20mm 31: 30mm 36: 35mm 3 E R Wet-end...

EWN-R series Specifications of pump B11 B16 B21 B31 C16 C21 C31 L/hr 2.3 3.9 6.0 12.0 4.8 7.8 mL/min 38 65 100 200 80 mL/shot 0.05 to 0.1 0.09 to 0.18 0.14 to 0.28 0.28 to 0.56 0.09 to 0.22 Model Capacity C36 VC/VH/PC/PH FC/SH/TC 16.2 25.2 24.6 130 270 420 410 0.14 to 0.36 0.3 to 0.75 0.47 to 1.17 0.46 to 1.14 Rated discharge pressure MPa 1.0 0.7 0.4 0.2 1.0 0.7 0.35 0.2 0.2 Max. pressure MPa (1.4) (0.8) (0.5) - (1.2) (0.8) - - - Stroke rate % (spm) Stroke length range 0.1 to 100 (1 to 360) % (mm) 50 to 100 (0.5 to 1.0) 40 to 100 (0.5 to 1.25) Current A 0.8 1.2 Average power consumption W...

The pump can be specialized for the need of a special chemical transfer. High compression type High pressure type Viscosity type The optimum feeding for gaseous liquids Suitable for boiler chemical injection Suitable for high-polymer coagulant injection Increased compression ratio due to minimized dead volume in pump chamber. Suitable for injection of gaseous liquids such as sodium hypochlorite, hydrogen peroxide etc. • The high pressure type can handle the maximum discharge pressure of 1.7MPa. • The 25 and 40mL/min (max. discharge pressure) types are available. • Capable of boiler chemical...

EWN-R series Optional accessories Accesories Check valve CAN / CBN / CS Chemical tank EXDT This has the function of a non-return valve and prevents siphon and overfeed. This is a polyetylene round tank. CAN: Available in PVC and CFRPP. CBN: In-line type to be connected in the middle of a hose; made of PVC. CS: Made of stainless steel for SH type. Capacity: 35, 60, 100, 200 or 300L Specifications Connection Model Inlet mm Outlet mm CAN-1VC Set pressure Material Body MPa Spring O-ring 0.17±0.04 (CAN-1V) CAN-1VE (1E) CAN-2VC (2V) CAN-2VCL (2VL) CBN-1VC CS-1S Rc1/4 PVC Hastelloy C276 (CFRPP)...

Dimensions in mm (77) L (77) L 100 6 VC/VH H (199) (212) (211) (77) L (265) (267) (267) a (24) (6) (7) b (164) (177) (176) c (23) (25) (24) d (47) (48) (48) a 40 15 20 20 15 H (199) (212) (211) Model EWN-11, 16, 21 EWN-31 EWN-36 (77) L 10 c 6 PC/PH 40 15 20 20 15 Model EWN-11, 16, 21 EWN-31 EWN-36 125 (68) 80 100 10 c 80 125 (68) a 100 100 b b H H (266) d (266) d L (265) (267) (267) a (24) (6) (7) b (164) (177) (176) c (23) (25) (24) b (155) (167) (170) c (22) (23) (23) d (47) (48) (48) L d c 10 H (68) 100 6 TC H (198) (211) (211) Model EWN-11, 16, 21 EWN-31 EWN-36 (77) L (265) (267) (268)...