A - Series A Series ISO-9 AVC/AVI/AVS HZ Evak Pump Technology Corp. No., Zhongshan Rd., Qingshui Township, Taichung County, Taiwan. Tel : +-- Fax: +--9 www.evak-pumps.com Vol. PIAV-
A-Series Index Multistage Centrifugal Pump AVC/AVI/AVS-Series Index / Type Key AVC/I/S General data AVC/I/S M - AVC/I/S M - AVC/I/S M - AVC/I/S M -9 AVC/I/S M - AVC/I/S M - AVC/I/S M - AVC/I/S M - AVC/I/S M - Troubleshooting7 Install Mechanical Seals- Nameplate- Type Key AVC- M Pumps & Pumps A-series Pump Type V : Vertical Pump material C I S : Cast iron (Discharge & Suction) : Stainless steel : Stainless steel Stages : stages : stages : stages : stages : stages Delivery (m³ /h) M : m³ /h M : m³ /h M : m³ /h M : m³ /h M : m³ /h M : m³ /h M : m³ /h M : m³ /h M : m³ /h EVAK PUMP TECHNOLOGY CORP.
A-Series HZ AVC / AVI / AVS Feature in-line design /High Efficiency Reliability/Easy Maintenance/ Wide Range Application: Irrigation and agriculture Water supply / Light industry pressure boosting / Water treatment Heating, ventilation / air-conditioning Mechanical Seals Standard Cartridge type mechanical seal made of Silicon Carbide/ Silicon Carbide/EPDM or Viton. Based on the type of application, alternative materials are available for the seal and the elastomers. The cartridge type mechanical seal can be replaced in minutes without special tools and without dismantling the pump. Type of Seal Seal Type Mechanical Seals S:Cartridge seal QQ UU QB UB Seals E V AVC AVI AVS List of Materials Q: Silicon carbide U: Tungsten carbide B: Carbon E: V: EPDM Viton AVC AVI AVS The AVC, AVI and AVS pumps are non-self priming vertical multistage pump of in-line design, or with coupling with equally sized suction and discharge ports. Stage construction with stainless steel impellers, chambers and pressure casing. Pump stub shaft and motor shaft of the IEC-standards motor are directly close coupled. All pumps are equipped with a cartridge type mechanical seal for easy maintenance. Product Data AVC / AVI /AVS Hz Nominal fiow (m³/h) Flow range (m³/h) Max. pressure (bar) Fluid temperature ( C) power () Mains connection phase ( V/Hz ) Mains connection phase ( V/Hz ) Insulation class Enclosure class Ambient temperature AVC Pipe Connection Flange AVI/S Pipe Connection Flange -connections Mechanical Seals Seals Range.7-..-..-. -.-. -9 - - -.. -~+.7-..7-.7-.7-.-.-. - - - DN / DN DN / DN R / DN - V Hz.7- -/- V Hz From - V Hz F IP Max. + C DN / DN DN / DN R / DN DN / DN DN / DN R / DN >Flange standards : Refer to dimensional drawings DN DN R DN DN DN R DN SiC/SiC EPDM:Standard Viton: DN DN R DN DN DN DN DN DN DN Maximum operating and inlet pressures AVC/AVI/AVS Hz Stages Maximum Operating Pressure Stages Maximum Inlet Pressures M - bar - bar M M M M M M M M - - - 7- - -7 - -7 (-)-7 (-)- (-)- (-)- (-)-(-) (-)- (-)-(-) bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar -9 - - - - 7- - -7 - -7 (-)- (-)- (-)- (-)- (-)- (-)-(-) (-)-(-) (-)-(-) (-)-(-) bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar bar Rule to follow: The inlet pressure + the pressure against a closed valve < Max. Operating pressure. www.evak-pumps.com
AVC,AVI,AVS-Series HZ In-line Pumps AVC,AVI,AVS-Series HZ In-line Pumps Data Squirrel cage in short circuit, aluminum casing up to, totally enclosed, fan-cooled, -pole standard motor. Standard supply Evak motors up to.. Other motor brands for higher powers. Electrical data Enclosure class: IP Insulation class: F Standard voltages: P:.7- x-/- V P: From x- V The motors have efficiency values that fall within the range normally referred to as high efficiency. Ambient temperature: Max. + C Pumped Liquids / / /..7.....7..7..... 7 B B B B B B B B B B B B B B B B B 7 7 9S 9L 9L L M S M M M L M L L L.7....9.... 7...9.7.7....7...7..9..9.. 7.7... 7....7..9... 9...... 79. H (M) AVC / AVI / AVS Performance Range HZ 9rpm Recommended Q (L/M).7 Q (M ³ /H) www.evak-pumps.com
A-Series HZ A-Series HZ Construction AVC-M,M,M,M,M,M AVI/S-M,M,M,M,M,M 7 7 7 7 9 9 Pos. Name Material AVC-,,,,,M Construction AVI-,,,,,M AVS-,,,,,M 7 9 7 Pump head Pump head cover Impeller Shaft Outer Sleeve O-ring for outer sleeve Chamber Neck ring Base Base Base plate Coupling Mechanical seal Cast Iron Stainless steel Stainless steel Stainless steel Stainless steel EPDM Stainless steel PTFE Cast Iron Stainless steel Cast Iron Fe-Cu-C Cartridge type Standard USA ASTM B AISI AISI AISI Europe EN-GJL-. 7.. EN-GJL- SINT C AISI ASTM B MPIF FC Standard Europe USA EN-GJS-- ASTM --. AISI. AISI 7 AISI. AISI.. EN-GJL- SINT C AISI AISI ASTM B MPIF FC Europe Standard USA EN-GJS-- ASTM --. AISI. AISI. AISI. AISI.. EN-GJL- SINT C AISI AISI ASTM B MPIF FC www.evak-pumps.com
EVAK PUMP TECHNOLOGY CORP. A-Series HZ A-Series HZ HZ 9rpm Construction AVC-M,M,M AVI/S-M,M,M H U.S.GPM Performance Curve. AVC/I/S - M ISO 99 Annex A HZ 9rpm 7 7 7 7 7 9 7 9 9 9 9 7 Construction Pos. Name Material AVC-,,M AVI-,,M AVS-,,M Standard Europe USA Standard Europe USA Europe USA Pump head Cast Iron EN-GJL- ASTM B Stainless steel. AISI. AISI Bracket Cast iron EN-GJL- ASTM B EN-GJL- ASTM B EN-GJL- ASTM B Impeller Stainless steel. AISI. ASIS. AISI Shaft Stainless steel 7 AISI 7 AISI. AISI Outer Sleeve Stainless steel. AISI. AISI. AISI O-ring for outer sleeve EPDM Stainless steel. AISI. AISI. AISI 7 9 7 Chamber Neck ring Base Base Base plate Mechanical seal Bearing ring Bottom bearing ring Carbon Fiber+POB+PTFE Cast Iron Stainless steel Cast Iron Cartridge type Tungsten carbide/ Tungsten carbide EN-GJL- Bronze ASTM B. EN-GJL- Bronze AISI ASTM B. EN-GJL- AISI ASTM B POB+Graphite+PTFE P [KW]......9..... P...9.......9.... Q[l/min] [%] www.evak-pumps.com
www.evak-pumps.com EVAK PUMP TECHNOLOGY CORP. A-Series HZ Dimensions & Weights AVC-M Dimensions & Weights AVI/S-M H G/ G/ H D D G/ Flange(-ANSI-JIS) PN / DN/ AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M7 AVC-M AVC-M9 AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M7 AVC-M9 AVC-M AVC-M AVC-M AVC-M7 AVC-M AVC-M AVC-M AVC-M.7.7.7.7.7.7.....7.7.7............... 7. 9. 9.......9.7. 7.9 9. P 79 79 97 9 7 7 7 7 9 97 7 77 9 H D H D 7 7 7 9 7 9 7 7 7 97 7 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/S-M.7.7.7.7.7.7.....7.7.7...... 7...9. 7. P 7 7 7 9 9 7 79 7 7 7 7 9 7 H D H H D 7 9 7 7 7 7 9 9 H 7 9 7 7 7 79 9 7 7 9 9 7 99 7 99 7 77 7 79 97 9 7 7 7 9 7 9. 9... H H D G/ G/ G/ Flange(-ANSI-JIS) PN / DN/ D A-Series HZ.......7.7.7.7.......7.7.7.7
A-Series HZ 9rpm A-Series HZ H U.S.G PM Performance Curve AVC/I/S - M ISO 99 Annex A HZ 9rpm D D Dimensions & Weights AVC-M 9 G/ G/ 7 H H Flange(-ANSI-JIS) PN / DN/ G/ 9 7 9 P [KW].... 9 7 7 P Q[l/min] [%] AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M7 AVC-M AVC-M9 AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M7 AVC-M9 AVC-M AVC-M AVC-M AVC-M7 AVC-M9 AVC-M AVC-M AVC-M.....7.7 P.7.7.7.7...7.7.7......... H H D 79 7 79 7 97 7 9 9 7 7 9 7 9 9 9 97 97 7 79 9 9 9 9 99 9 9 D www.evak-pumps.com AVC-M...... 7....... 9.9.7...9.7..9.7.
A-Series HZ A-Series HZ 9rpm Performance Curve D D Dimensions & Weights AVI/S-M H U.S.GPM AVC/I/S - M ISO 99 Annex A HZ 9rpm G/ G/ 9 H H G/ Flange(-ANSI-JIS) PN / DN/ AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/AVS-M.....7.7 P.7.7.7.7...7.7.7......... H H H H D D 7 7 7 7 7 9 9 9 7 9 7 9 7 9 7 9 7 7 99 79 7 7 7 9 7 7 9 9 9 99 7 9 7 97 7 9 7 77 77 7 77 7 9 9 77 97 9 9 AVI/S-M 7 7 9.... 9.... 9.. 9 9 9 7 9.........7 9 P [KW].... 9 7 7 9 P 7 9 7 9 Q[l/min] [%] www.evak-pumps.com
www.evak-pumps.com EVAK PUMP TECHNOLOGY CORP. A-Series HZ Dimensions & Weights AVC-M Dimensions & Weights AVI/S-M H H D D G/ G/ G/ D Flange(-ANSI-JIS) PN / DN/.7...7.............7 7. 7.. 9. 7.7. 7. 9... 7 7 9 9 9 7 7 7 79 77 9 9 9 9 9 9 9 99 99 7 7 9 7 77 797 7 9 9 9 7 9 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/S-M P H D H H D H D 9 9 9 9 7 7 7 79 9 9 7 7 7 7 7 79 9 7 9 9 97 7 9 7 9. 7. 9.....9... 9.....7 A-Series HZ..7.7 H G/ G/ H D D G/ D Flange(-ANSI-JIS) PN / DN/ AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M7 AVC-M AVC-M9 AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M9 AVC-M AVC-M AVC-M.7...7......... 7..9.........9. P 79 9 7 9 7 7 9 79 77 79 99 9 9 9 9 9 9 9 99 99 H D H D 7 97 97 7 7 79 9 7 9 97 9 7 9 D..7.7
A-Series HZ 9rpm A-Series HZ Performance Curve H U.S.G PM AVC/I/S - M ISO 99 Annex A HZ 9rpm D D Dimensions & Weights AVC-M G/ G/ D 9 9 7 H H G/ Flange(-JIS) PN - / DN P [KW].... P Q[l/min] [%] AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M7 AVC-M AVC-M9 AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M. P.7.7... H H 7 7 77 9 7 7 7 9 9 7 9 D 9 9 9 9 9 D 99 99 99 99 99 D www.evak-pumps.com AVC-M 9..... 7. 9....7
A-Series HZ A-Series HZ 9rpm Performance Curve Dimensions & Weights AVI/S-M Flange(-ANSI-JIS) PN - / DN H U.S.GPM 7 AVC/I/S - M ISO 99 Annex A HZ 9rpm D D H G/ G/ D 9 H G/ G/ 9 7 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M. P.7.7... H H H H D D 7 7 7 7 7 7 7 7 9 7 9 7 9 7 7 9 9 9 9 9 9 9 7 7 9 77 77 99 9 9 99 9 9 9 9 99 9 9 99 99 D AVI/S-M Vactaulic.. 7...... 9. 9.... 7... 7.9 9 7 9.9 99. [KW P.... ] 9. P 9 Q[l/min] [%] 9 www.evak-pumps.com
A-Series HZ A-Series HZ Dimensions & Weights AVC-M Dimensions & Weights AVI/S-M D D D Flange(-ANSI-JIS) PN - / DN D H H G/ G/ G/ Flange() PN - / DN D H H G/ G/ G/ D G/ P H H D D AVC-M. AVC-M. 9 AVC-M 7 9 AVC-M 9 AVC-M 9 9 AVC-M 99 99 AVC-M7 77 7 99 AVC-M 7 99 AVC-M9 77 7 99 AVC-M 9 AVC-M 979 AVC-M 9 AVC-M7 9 D AVC-M.. 9.7 7.7 9. 97.7...... AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M AVI/AVS-M9 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 P.. H H H H D D 7 97 7 77 7 9 9 9 7 9 9 99 99 7 99 7 7 99 7 7 99 77 7 97 977 7 7 9 9 D AVI/S-M. 9.9. 7. 9 99........ 9. 9..9..9 9.7 7.7 www.evak-pumps.com
A-Series HZ 9rpm A-Series HZ H U.S.G PM Performance Curve 7 AVC/I/S - M ISO 99 Annex A HZ 9rpm D D Dimensions & Weights AVC-M H G/ G/ Flange() PN - / DN D H G/ 7 9 P [KW]..... P Q[l/min] [%] AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M AVC-M7 AVC-M AVC-M AVC-M AVC-M AVC-M7 P... H H 9 9 7 97 77 77 799 9 979 9 79 D 9 7 D 99 99 99 99 D AVC-M.7. 9. 9.. 7.9.7 7. 9. www.evak-pumps.com
A-Series HZ A-Series HZ 9rpm Performance Curve D D Dimensions & Weights AVI/S-M Flange(-ANSI-JIS) PN - / DN H 7 U.S.GPM - - - - - 9-9 9 AVC/I/S - M ISO 99 Annex A HZ 9rpm H H G/ G/ G/ D G/ 9-7 7- - - - - - - AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M AVI/AVS-M7 P... H H H H D D 7 97 7 7 79 9 9 9 99 7 9 9 99 99 7 99 77 797 77 7 97 977 7 7 9 77 77 7 D AVI/S-M.... 9. 9 9... 9. 9. 9. 9.7...9.7 9.7 [KW P ]..... P/ P/ Q[l/min] [%] www.evak-pumps.com
www.evak-pumps.com EVAK PUMP TECHNOLOGY CORP. A-Series HZ Dimensions & Weights AVC-M Dimensions & Weights AVI/S-M H D H 7 D D G/ G/ G/? 7 PN-- / DN 97??? 7 X? X? A-Series HZ AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M7- AVC-M7 AVC-M- AVC-M AVC-M9- AVC-M9 AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M....................... P 7 7 7 7 9 9 9 9 7 7 9 9 7 7 7 7 7 7 7 7 7 7 7 7 99 99 99 99 9 9 9 9 H D H D 779 779 9 99 9 9 9 9 9 9 79 79 779 779 9 9 9 9 77 77 7 7 D 9. 7......... 7 7 7 7 7 7 9 9 7 7??? 7 X? X?? 7 99 7 7 H D H D D G/ G/ G/ PN-- / DN AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M7- AVI/S-M7 AVI/S-M- AVI/S-M AVI/S-M9- AVI/S-M9 AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M....................... P 7 7 7 7 9 9 9 9 7 7 9 9 7 7 7 7 7 7 7 7 7 7 7 7 99 99 99 99 9 9 9 9 H D H D 779 779 9 99 9 9 9 9 9 9 79 79 779 779 9 9 9 9 77 77 7 7 D..7 7.. 99. 99..............7......
A-Series HZ 9rpm A-Series HZ H U.S.G PM Performance Curve - - - AVC/I/S - M ISO 99 Annex A HZ 9rpm D D Dimensions & Weights AVC-M P [KW] - 9 9- - 7 7- - - - - - - P/ P/ Q[l/min] [%] AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M7- AVC-M7 AVC-M- AVC-M AVC-M9- AVC-M9 AVC-M- AVC-M AVC-M- AVC-M AVC-M- AVC-M AVC-M- H H G/ G/ P 7............... 7. 7. 7...... D X? G/ PN-- / DN???? X? H H D D 9 9 9 99 99 7 7 9 9 99 7 99 7 7 7 7 7 77 7 9 77 7 9 7 9 7 9 9 7 9 9 9 9 9 9 7 9 9 7 9 9 7 9 7 9 9 D AVC-M 7. 9..... 7. 7..9.9.....9 9. 9. 9. 9...... www.evak-pumps.com
A-Series HZ A-Series HZ 9rpm AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M7- AVI/S-M7 AVI/S-M- AVI/S-M AVI/S-M9- AVI/S-M9 AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M AVI/S-M- H H D D G/ G/ P............... 7. 7. 7...... Dimensions & Weights AVI/S-M D G/ PN-- / DN H H D D 9 79 9 9 9 9 9 999 99 9 9 99 9 7 9 7 99 9 99 9 7 99 7 99 7 9 7 9 7 9 77 7 9 9 77 7 9 9 7 9 9 7 9 9 9 7 9 9 9 9 9 9 9 9 9 9 9 9 9 9 7 9 9 7 9 9 9 D AVI/S-M 79.......7.7.. 7. 7..7.7.....7.7...9.9 H [KW P ] U.S.GPM Performance Curve - - 7 7-7- - - - - - - - - - - - P/ P/ AVC/I/S - M ISO 99 Annex A HZ 9rpm www.evak-pumps.com Q[l/min] [%]
A-Series HZ A-Series HZ D D Dimensions & Weights AVC-M D D Dimensions & Weights AVI/S-M Flange () PN- / DN Flange () PN- / DN G/ G/ H D H D H G/ G/ Flange () PN / DN H G/ G/ Flange () PN / DN G/ G/ AVC-M- AVC-M AVC-M- AVC-M- AVC-M AVC-M- AVC-M- AVC-M AVC-M- AVC-M- AVC-M AVC-M- AVC-M- AVC-M AVC-M- AVC-M- AVC-M AVC-M7- AVC-M7- AVC-M7 AVC-M- AVC-M- P............. 7. 7. 7. 7.... H H D D 9 9 9 99 99 7 7 7 7 7 7 9 7 9 7 9 7 7 9 7 9 7 9 79 7 9 9 9 9 9 9 9 7 97 9 9 9 9 9 D AVC-M.7. 9. 9... 99....... 7.9 7.9 7.9..... AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M- AVI/S-M AVI/S-M- AVI/S-M- AVI/S-M AVI/S-M7- AVI/S-M7- AVI/S-M7 AVI/S-M- AVI/S-M- P............. 7. 7. 7. 7.... H H D D 9 9 9 99 99 7 7 7 7 7 7 7 9 7 9 7 9 7 7 9 7 9 7 9 79 7 9 9 9 9 9 9 9 7 97 9 9 9 9 9 D AVI/S-M.9 9..7.. 7. 7. 9. 9..97.97 9.9 9.9 9.9 99.97.97.97 7. 7...9.9 www.evak-pumps.com
Troubleshooting A-Series HZ Fault. Pump does not run when the motor starter is activated.. Starter overload trips immediately when the power is switched on.. The pump starts but, after a short time, the thermal protector trips out or the fuses blow.. The pump starts up but, after a period of time, the thermal protector trips. protector trips out or the fuses blow. Possible cause a. Supply failure or no power supply. b. Main contacts in motor starter are not making contact or the motor coils are defective c. Pump or auxiliary circuits protection fuses blown. d. Pump or piping system may be obstructed causing a jam. e. may have failed. f. protector or thermal relay has tripped out. g. Tripping of anti-dry running protection. a. Overload setting is too low. b. The cable connection is loose or faulty. c. One fuse is blown. d. Pump is jammed by an obstruction e. Contacts in overload are faulty. f. The motor winding is defective. g. Low voltage (Especially at peak time). a. The voltage is not within the motor s operating limits. b. The control panel is situated in an excessively heated area or is exposed to direct sunlight. c. A phase in the power supply is missing. a. Worn motor bearings causing motor to overheat. b. The pump s delivery rate is higher than the specified rate on the pump nameplate. c. There are obstructions inside the pump or pumping system. d. Less viscous liquids may cause the motor to work too hard and overload the motor, causing the motor to overheat. Possible solution Check connections or restart the power supply. Reconnect or replace contacts or magnetic coil. Replace fuses. Clean the obstruction and restart pump. Replace the motor. Reset the motor or thermal protector. Check the water level in the tank or the water system pressure. If everything is in order, check the protection device and its connection cables. Set the motor starter correctly. Fasten or replace the cable connection. Replace fuse and try starting again. Check and clean obstruction from system. Replace motor starter contacts. Replace the motor. Check the power supply. Check the operating conditions of the pump. Protect the control panel from heat sources and from the sun. Check the power supply. Replace motor bearings. Partially close the on-off valve located discharge side until the delivery rate returns to within the specified limits. Disassemble and clean the pump and piping. Check the actual power requirements based on the characteristics of the liquid being pumped, and replace the motor accordingly. Install Mechanical Seals. Pump runs but no water delivered.. The pump capacity is not constant. 7. The system's general protection cuts in.. The pump rotates in the wrong direction when switched off. 9. The frequency of Pump start-up is too high.. Vibration and noise a. Pump is not primed with liquid. b. The pump, suction or discharge pipes are blocked by solids in the liquid being pumped. c. The foot or check valve is blocked or has failed. d. The suction pipe leaks. e. The air is in the suction pipe or pump. f. operating in wrong direction (three-phase motor) a. The pump draws in air or the inlet pressure is too low. b. The pump or the suction side of the piping system partly blocked by foreign bodies. Short circuit. a. The foot or the check valve has failed. b. Leakage in the suction pipe. a. Leakage in the foot valve, check valve or system. b. Ruptured membrane or no air pre-charge in surge tank. a. Cavitation b. Make sure that pump and motor shafts are properly aligned. c. Worn motor bearings. d. Operation with frequency converter. e. Check vibration and noise damping devices Fill the pump with the liquid to be pumped. Clean the pump, suction or discharge pipe. Replace the foot or check valve. Repair or replace the suction pipe. Remove trapped air from system. Change the direction of rotation of the motor by reversing motor connections. Improve the suction conditinos. Clean the pump or suction pipe. Check electrical system. Check and replace check valve. Repair or replace the suction pipe. Repair or replace the components. See relevant instructions in surge tank s manual. Reduce the required flow or improve the operating conditions of the pump (suction conditions, head, flow resistance, liquid temperature, viscosity etc.). Adjust the pump and/or motor shafts. Replace the bearings or the motor. Consult a qualified engineer form the supplier of the frequency converter. Replace vibration & noise dampers, if worn..pump Type Seal Type.Rated Power.Frequency.Speed.Maximum Capacity.Maximum Head 7.Rated Capacity.Rated Head 9.Maximum Operating Pressure.Rotating Direction.Serial Number 7 9 Nameplate 7 www.evak-pumps.com www.evak-pumps.com