Standard Features

• DESIGNED TO INCORPORATE TWO ARMSTRONG STANDARD SERIES 4300 SPLIT COUPLED VERTICAL IN-LINE PUMPS IN A SINGLE CASING. ALL EXISTING 4300 SERIES CATALOGUE INFORMATION AND PERFORMANCE CURVES MAY BE USED, OR DOUBLED IN THE CASE OF PARALLEL OPERATION, FOR THE SERIES 4302 VERTICAL IN-LINE PUMP
• MOTOR - Industry standard, designed for in-line service.
• MOTOR SHAFT - run-out limited to .001” TIR (Total Indicated Reading)
• COUPLING - Axially split spacer type permits removal of seal without disturbing pump or motor.
• SHAFT - Stainless Steel with deflection at mechanical seal limited to .002” TIR
• MECHANICAL SEAL - Outside balanced or inside type, accessible and easily replaced.
• SEAL PLATE - Flush connection ensures lubrication at the seal faces and positive venting of seal chamber.
• IMPELLER - Dynamically balanced to assure smooth vibration free operation.
• VOLUTE - Radially split, with equal suction and discharge flange sizes. Separate tapped openings for gauge, flush and drain connections.
• GASKET - Confined casing gasket to meet stringent industrial temperature and pressure applications.
• FLAPPER VALVE - in discharge port hydraulically isolates casings preventing recirculation when only one pump operates.
• ISOLATION VALVES - allow one unit to be isolated and removed for service with the second unit still operating.
• COUPLING GUARDS - fully enclose all access openings