EMTEC Series 3-Screw

Transcription

1 EMTEC Series 3-Screw Coolant and Emulsion Pumps The reliable pump people Rotary Screw Pumps

2 Performance Shown at 1.8 cst, 3500 RPM Differential Pressure PSI Size GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP GPM BHP

3 Imo Series EMTEC Pump Rotatable porting for ease of piping Laser hardened housing bores Hard on hard face mechanical seal Full hydraulic balance Nitride hardened steel screw set External ball bearing Model No. Code Example: EMTEC 80 R 46 D W Series Case Size Right Hand Rotation Screw Pitch in Degrees Material Code Shaft Seal Q = None (Tank Mount) 8.6 = Mechanical Seal Special Design Feature D = Ball Bearing, Uncooled, Unheated Mechanical Seal

4 Specifications Casing Housing Rotors Shaft Seal Bearing O-Rings Viscosity Inlet Pressure Cast iron inlet and discharge covers. Cast iron with laser hardened bores. Metal ceramic optional. Nitride hardened alloy steel. Silicon carbide on silicon carbide, fluorocarbon fitted mechanical seal. Optionally, pumps can be supplied without shaft seal for vertical in-tank mounting. In this case, the seal chamber is drained overboard. Permanently grease packed external ball bearing. Fluorocarbon. 1.0 cst minimum for differential pressure to 870 PSI (60 BAR). 1.8 cst minimum for differential pressure to 1300 PSI (90 BAR.) 9000 SSU (2000 cst) maximum. 145 PSIG (10 BAR) maximum. Outlet Pressure 1300 PSIG (90 BAR) maximum. Differential Pressure Operation at differential pressures below 40 psi (2.8 BAR) may require pump modification to assure sufficient shaft seal cooling flow. Consult Imo Pump. Temperature 0 to 210 F (-18 to 100 C) Drive/Rotation Direct drive, clockwise rotation only facing pump shaft. EMTEC pump on production test Speed 3600 RPM maximum. Mounting Connections Filtration Accessories Shaft end flange mounting, horizontal or vertical, shaft up. SAE 4-bolt flange pads for use with 3000 PSI rated 4-bolt flanges, metric bolts. A fine degree of filtration compatible with the expected type and quantity of contaminant will maximize pump service life. Completely mounted pump/driver assemblies with baseplates or NEMA C face motor adapters are available.

5 5-240 GPM ( L/M) Pressure to 1300 PSIG (90 BAR) EMTEC pumps are designed with withstand the harsh environment of high pressure machine tool coolant service. Special hardening techniques produce wear resistance within the housing bores offering cost effective pumping. Balance diameters at the inlet end of the idler rotors provide hydraulic balance eliminating thrust loads due to differential pressure. These diameters are special coated resist wear and rotate within journals. The power rotor (drive shaft) includes a hardened and specially grooved balance piston. It provides the counteracting force to eliminate thrust loads on the shaft due to differential pressure. It is extra long to minimize flow loss. Leakage crossing the balance piston provides cooling flow to the mechanical shaft seal before being returned to pump inlet. In the case where the pump is mounted vertically within the coolant supply tank, the shaft seal can be eliminated for further cost effectiveness. Leakage across the balance piston is then allowed to escape back to the coolant supply by leaving a seal chamber exit tap unplugged. A labyrinth ring on the pump side of the ball bearing prevents coolant splash from washing out the bearing grease. H L W Case Size SAE Pad Dimensions in Inches Weight Lbs. Inlet Outlet L W H / / / / / /

6 The Reliable Pump People A Member of the COLFAX PUMP GROUP Imo Pump 1710 Airport Road PO Box 5020 Monroe, NC USA tel +1 (704) fax +1 (704) Imo.Pump@ColfaxCorp.com Internet ALLWEILER HOUTTUIN IMO PUMP WARREN Quality Management System COLFAX PUMP GROUP 2001 Imo Pump All rights reserved. Bulletin EMTEC-01