EJseries. Self-Priming Centrifugal Pumps

Transcription

1 EJseries Self-Priming Centrifugal Pumps T w w w. e u r o f l o p u m ps. c o m

2 EJseries - Coding System Eg. EJS -11 XX XX XX EJT - XXX XX-XXX XX XXXX XXXX Series EJS = Shaft (bare) pumps EJT = Large Flow pumps EJU = High Head pumps EJ = ono Block pumps Discharge Size - Impeller Nominal Size Seal Type 1 = Sic Vs Sic/Viton Tc = Tungsten Carbide = Tc Vs/Viton C = Carbon = C Vs Ceramic/Viton Sic = Silicon Carbide Body / Impeller / Shaft aterial Codes Casing Impeller Shaft CD CI Ductile Iron Cr1 () CA CI A (Carbon Steel) Cr1 CAD CI Harden Iron SS CB CI Bronze SS C CI CDCU SS CS CI SS SS BB Bronze Bronze SS DC Duplex SS Duplex SS SS SS SS SS SS SS SS SS SS ADI Harden Iron Harden Iron SS HH Hastelloy Hastelloy SS Special Option Engine EB = Engine on baseplate ET1 = Engine on Trolly - off road ET = Engine on Trolly - on road

3 T EJseries - Self-Priming Centrifugal Pumps OUTLET PUP CASING AIR BUBBLES IPELLER INLET IPELLER EYE Principal of Self Priming Upon starting the pump, pressure drop occurs at the eye of the impeller which will give rise to pressure differences within the pump system (pump casing & suction pipe) and outside the pump system. As the pressure continues to drop in the pump system, a mixture of liquid and air will start to flow into the pump due to higher atmospheric pressure outside the pump system. The mixture of liquid and air will flow through the casing chamber designed like a diffuser through the inlet and then to the discharge port. At the discharge port, air being lighter will be extricated through the discharge piping. The liquid being heavier will fall back into the pump chamber and re-mix with the inlet liquid. This process is repeated till air in the suction pipe and pump casing is fully emptied and filled with liquid. At this point, the pump will then be fully primed and achieve the self-priming effect. Application : Industry - Waste water treatment - Transfer of low viscosity petroleum products - Recovery of dirty solvents - Emergency duty Civil engineering / civil defence - Sewer by-pass - Recovery of hazardous liquids - Flood drainage arine duty - Bilge pumping - Sanitary duty - Loading and unloading - Washing - Fire fighting Sewage - Lift stations - Sewage by-pass - Treatment Construction - Dewatering - Ground water control - Water supply Agriculture - Surface irrigation - Liquid manure - Distribution of liquid animal feed

4 EJS - Sectional Parts Oil resistant nitrile rubber check valve canvas reinforcement Priming cover Casing with studs to avoid damage to tapped holes Open impeller handling large diameter spherical solids Grease lubricated carbide mechanical seal. Can run dry on high vacuum even when pumping highly abrasive liquids Impeller inspection cover. Permits rapid access to the impeller to remove obstructions Cleaning out cover Large capacity priming chamber Bearing housing with heavy duty bearings suitable for direct or V- belt drive Easily replaceable wear plate with oil and abrasionresistant rubber facing Standard diameter shaft extension bored and tapped to facilitate assembly of couplings or pulleys Table

5 T EJS - Family Curves Norminal Speed - Poles I.G.P TOTAL HEAD ETRES FEET FLOW RATE (Q) L / S /Hr Norminal Speed - Poles I.G.P TOTAL HEAD ETRES FEET FLOW RATE (Q) L / S /Hr

6 EJS - Installing Dimensions B B 1 F F 1 L U L H1 H H n-s 1 H1 n-s N N 1 N N W 1 T n-s 1 K K n-s W B 1 B B H 1 H H F F 1 N N 1 N N W 1 n-s 1 n-s L T U D Net Weight (kg) K K n-s

7 T FT rpm EJS -11 Impeller Dia. : 11mm rpm rpm ax Solids : mm R.P.. from to rpm 1 kw rpm 1 rpm NPSH@9 m /hr 1 1 l/min USGP FT 1 rpm EJS - Impeller Dia. : mm ax Solids : mm R.P.. from to rpm 1 1 kw m /hr l/min USGP NPSH@9 1 7

8 EJS -1 FT Impeller Dia. : 1mm ax Solids : mm R.P.. from to rpm 9 rpm kw 7 1 m /hr l/min USGP NPSH@9 EJS -1 FT rpm Impeller Dia. : 1mm ax Solids : mm 1 R.P.. from to rpm kw m /hr l/min USGP 1 NPSH@1 7 1

9 T FT rpm EJS 1- Impeller Dia. mm ax Solids : mm R.P.. from 1 to rpm 17 1 kw 1 1 NPSH@9 m /hr 1 1 l/min 1 USGP 1 FT EJS 1- Impeller Dia. : mm rpm ax Solids : mm R.P.. from to rpm kw NPSH@1 m /hr 1 1 l/min 1 USGP 9

10 EJS 1- FT rpm Impeller Dia. : mm ax Solids : 7mm 1 1 R.P.. from to rpm 1 kw 1 1 m /hr NPSH@1 1 l/min USGP EJS 1- FT rpm 1 Impeller Dia. : mm ax Solids : mm 1 7 kw R.P.. from 1 to 1rpm m /hr l/min USGP 1 NPSH@

11 T FT 1 rpm EJS - Impeller Dia. : mm kw ax Solids : mm R.P.. from 1 to 1rpm NPSH@1 m /hr 1 l/min USGP 11

12 EJT - Sectional Parts Discharge Outlet Flat Valve Suction Inlet Volute Replaceable Wearplate Ball Bearings Balanced Impeller Removable Coverplate Pressure Relief Valve Cartridge echanical Seal Pump odel Port Size Solid Size /hz Capacity Head otor mm in Ømm m/hr m kw EJT- " EJT- " EJT1-1 " 7 Table EJT1-1 1 " EJT-7 " EJT-7 1" EJT-7 " EJU- " EJU1-1 " EJU1-1 1 "

13 T EJT - Family Curves EJT: - Large Flow I.G.P TOTAL HEAD ETRES FEET FLOW RATE (Q) L / S /Hr EJU: - High Head I.G.P TOTAL HEAD ETRES FEET FLOW RATE (Q) 1 1 L / S /Hr 1

14 i EJseries EJT - Installing Dimensions IPELLER SHAFT odels EJT-7 B A C Q øk SHAFT KEY L J D F E H G N O øp odels EJT-7 odels EJT-, EJT-, EJT1-, EJT1-1 and EJT-7 A B N O A F D G C L E F G øp H J L B C E D i H øj 1

15 T EJU - Installing Dimensions IPELLER SHAFT odels EJU-, EJT1-, EJT1-1 Q øk A SHAFT KEY F G L B C E D i H øj Port Size Pump Dimension Foot Dimension Shaft End Shipping Pump odel Weight mm in A E F G L B C D H I J K Q (kg) EJU- " EJU1-1 " EJU1-1 1 "

16 EJT - Impeller Dia. 1,7mm (.1/ ) ax Solids,mm (1./ ) R.P.. from 11rpm to 9rpm TOTAL HEAD mca PSI FT FT. FT USGP x 1 l/s POWER/TOTAL HEAD/EFFICIENCY % NPSH@ RANGE HP m /hr EJT - Impeller Dia.,mm (./ ) ax Solids,mm (.1/ ) R.P.. from rpm to 1rpm TOTAL HEAD mca PSI FT POWER/TOTAL HEAD/EFFICIENCY % RANGE % HP 1.1 FT NPSH@1 USGP l/s m /hr

17 T EJseries TOTAL HEAD mca PSI FT POWER/TOTAL HEAD/EFFICIENCY EJT FT 7 % 1 RANGE % 1 7. HP 1 Impeller Dia. 7,mm (9./ ) ax Solids 7,mm ( ) R.P.. from rpm to 19rpm 1.1 FT NPSH@19 USGP x 1 l/s m /hr TOTAL HEAD mca PSI FT FT POWER/TOTAL HEAD/EFFICIENCY % RANGE 1 1 % HP EJT 1-1 Impeller Dia. 1,mm (./ ) ax Solids 7,mm ( ) R.P.. from rpm to 1rpm 1.1 FT NPSH@1 USGP x l/s x m /hr

18 EJT -7 Impeller Dia. 7,mm (1./ ) ax Solids 7,mm ( ) R.P.. from rpm to 1rpm TOTAL HEAD mca PSI FT FT 1.1 FT POWER/TOTAL HEAD/EFFICIENCY % NPSH@ RANGE 1 7 HP % USGP x l/s x m /hr 1 1 EJT -7 TOTAL HEAD mca PSI FT POWER/TOTAL HEAD/EFFICIENCY Impeller Dia. 7,mm (1./ ) ax Solids 7,mm ( ) R.P.. from rpm to 1rpm FT 1.1 FT. FT NPSH@1 % 7 1 RANGE % 1 HP USGP x l/s x m /hr x

19 T TOTAL HEAD mca PSI FT 9 1 POWER/TOTAL HEAD/EFFICIENCY EJT -7 Impeller Dia. 7,mm (1 ) % 7 79 RANGE ax Solids 7,mm ( ) R.P.. from rpm to 1rpm FT. FT NPSH@ % HP 1 USGP x l/m x m /hr TOTAL HEAD mca PSI FT FT RANGE 1 % POWER/TOTAL HEAD/EFFICIENCY HP EJU - Impeller Dia. 79,mm (11 ) ax Solids,mm (1/ ) R.P.. from rpm to 1rpm 1.1 FT NPSH@1 USGP l/s m /hr 19

20 EJU 1- Impeller Dia. 79,mm (11 ) ax Solids,7mm (1.1/ ) R.P.. from rpm to 1rpm TOTAL HEAD mca PSI FT FT. FT USGP x 1 l/s m /hr POWER/TOTAL HEAD/EFFICIENCY NPSH@1 1 1 % 1. RANGE 7 % % 7 7 HP EJU 1-1 Impeller Dia. 17,mm (.1/ ) ax Solids 1,7mm (1.1/ ) R.P.. from rpm to 19rpm TOTAL HEAD mca PSI FT FT 19.7 FT. FT POWER/TOTAL HEAD/EFFICIENCY NPSH@19 % RANGE % % 7 HP % USGP x 1 l/m x m /hr 1 1 1