DWC. ENCLOSED IMPELLER CENTRIFUGAL ELECTRIC PUMPS in AISI 304. Japanese Technology since Commercial

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1 Enclosed impeller centrifugal electric pumps stainless steel. APPLICATIONS Cooling, air conditioning and heating systems Chiller Washing systems Industrial liquids DWCN DWCV PERFORMANCE RANGE (according to ISO 9906 Attachment A) TECHNICAL DETAILS Available in two different versions: with threaded (DWCN) and Victaulic connections (DWCV) Insulation as per standard for the Victaulic version (DWCV) PUMP TECHNICAL DATA Maximum working pressure: 8 bar Maxim temperature of the liquid: 15 C +90 C 15 C +110 C for HHSHWHSW versions Suction and discharge connection G for DWCN Suction and discharge connection Ø (60.3 mm) for DWCV For further information please see our Data Book on the web site MOTOR TECHNICAL DATA High efficiency IE motors starting from 0.75kW up to 5.5kW starting from 0.75kW Selfventilated pole asynchronous motor Class of insulation F IP55 protection degree 30/400V ±10% 50Hz three phase voltage Protection under user s responsibility for the three phase version IDENTIFICATION CODE DWC H V 500 / 3.0 Type V N Power in kw Victaulic Connection Threaded connection Optional version H HS HW HSW Q1AVGG AQ1EGG VAEGG Q1U3EGG U3BEGG MATERIALS Pump casing, casing cover, impeller and shaft (part in contact with the liquid) Bracket and motor frame in aluminium Mechanical seal in: Ceramic/Carbon/EPDM (standard) special versions: see p. 3 ACCESSORIES (On request) Insulation casing for DWC pump casing for applications with refrigerant liquids or liquids with high thermal difference that may generate condensate. Japanese Technology since Commercial

2 PERFORMANCE CHART P Q = Flow Rate l/min /400V [HP] [kw] m 3 /h H=Head [m] DWC 300/ DWC 300/ DWC 500/ DWC 500/ DWC 500/ PERFORMANCE CURVES DWC 300 series (according to ISO 9906 Attachment A) PERFORMANCE CURVES DWC 500 series (according to ISO 9906 Attachment A) THERMAL INSULATION VICTAULIC JOINT JOINT INSULATING COVER PUMP BODY VICTAULIC JOINT SEC. AA PUMP BODY INSULATING COVER JOINT INSULATING COVER Insulating cover pump casing Insulating cover joint Joint Victaulic DWCV 300/ DWCV 300/ DWCV 500/ DWCV 500/. DWCV 500/3.0 DWCN 300/ Standard On request On request DWCN 300/ DWCN 500/ DWCN 500/. DWCN 500/3.0 On request Not applicable Not applicable Japanese Technology since Commercial

3 DIMENSIONS DWCV (VICTAULIC CONNECTION) DIMENSIONAL TABLE B B* C Dimensions [mm] C* H3 H3* V V* Weight [kg] * DWCV 300/ DWCV 300/ M0x M0x DWCV 500/ M0x DWCV 500/ PG 13.5 M0x DWCV 500/ PG 13.5 M0x.3.3 * s with motor only DIMENSIONS VIEW DWCN (THREADED CONNECTION) DIMENSIONAL TABLE B B* C Dimensions [mm] C* H3 H3* V V* Weight [kg] * DWCN 300/ DWCN 300/ M0x M0x DWCN 500/ M0x DWCN 500/ PG 13.5 M0x DWCN 500/ PG 13.5 M0x.3.3 * s with motor only Japanese Technology since Commercial

4 SECTIONAL VIEW DWCV (VICTAULIC CONNECTION) SECTIONAL VIEW DWCN (THREADED CONNECTION) MATERIALS TABLE Ref. Name Materials Ref. Name Materials 1 Pump casing EN (AISI 304) 5 Plug EN (AISI 304) 3 Motor bracket Aluminium 6 ORing [1] EPDM 4 Casing cover EN (AISI 304) 3 Key EN (AISI 316) 6 Shaft EN (AISI 304) Part in contact with the liquid 34 Impeller nut EN (AISI 304) 7 Impeller EN (AISI 304) 4 Motor support Aluminium / Galvanised steel 11 Mechanical seal Ceramic/Carbon/EPDM 50 Spacer 1 Motor frame 56 Terminal box cover gasket NBR 13 Motor cover Aluminium 73 Casing ring EN (AISI 304) 14 Fan PA 75 Washer EN (AISI 304) 15 Fan cover Galvanised Fe P04 76 Washer EN (AISI 304) 16 Terminal Box 77 ORing [1] EPDM 17 Terminal box cover Aluminium 78 ORing [1] EPDM 19 Bearing (pump side) 9 Seal ring 0 Bearing (motor side) 93 Seal ring 1 Adjustment ring Steel C70 00 Screw (pump body) Stainless steel A70/1 class ISO 3506/1 Tierod Galvanised Fe 4 08 Screw Stainless steel A70/1 class ISO 3506/1 4 Plug EN (AISI 304) [1]= FKM for HHSHWHSW versions Japanese Technology since Commercial

5 MECHCANICAL SEAL standard MATERIALS TABLE Ref. Name Materials A Rotating part Ceramic B Fixed part Carbon C ORing EPDM D ORing EPDM E ORing EPDM F Spring AISI 316 G Structure/frame AISI 304 SPECIAL MECHANICAL SEALS (on request) Ref. Name H Version HS Version Materials HW Version HSW Version A Rotating part Ceramic Silicon Carbide Tungsten Carbide Silicon Carbide B Fixed part Carbon Silicon Carbide Tungsten Carbide Tungsten Carbide C ORing FKM FKM FKM FKM D ORing FKM FKM FKM FKM E ORing FKM FKM FKM FKM F Spring AISI 316 AISI 316 AISI 316 AISI 316 G Structure/frame AISI 304 AISI 316 AISI 316 AISI 316 Ref. Name Q1AVGG Version AQ1EGG Version Materials VAEGG Version Q1U3EGG Version U3BEGG Version A Rotating part Silicon Carbide Metallised carbon Ceramic Silicon Carbide Tungsten Carbide B Fixed part Metallised carbon Silicon Carbide Metallised carbon Tungsten Carbide Graphite C ORing FKM EPDM EPDM EPDM EPDM D ORing FKM EPDM EPDM EPDM EPDM E ORing FKM EPDM EPDM EPDM EPDM F Spring AISI 316 AISI 316 AISI 316 AISI 316 AISI 316 G Structure/frame AISI 316 AISI 316 AISI 316 AISI 316 AISI 316 ELECTRIC DATA TABLE P Efficiency Efficiency (%) P 1 Absorbed Current [A] 30/400V [HP] [kw] 50% η % 75% 100% [kw] 30V 400V DWC 300/ IE DWC 300/ IE DWC 500/ IE DWC 500/ IE DWC 500/ IE NOISE DATA TABLE P L pa db(a)* 30/400V [HP] [kw] DWC 300/ DWC 300/ DWC 500/ DWC 500/. 3. DWC 500/ * Mean value of several measurements at 1 m distance around the pump. Tolerance ±.5 db. <70 <70 Japanese Technology since Commercial