The best base mounted pump design in today’s HVAC industry.
- CIRCULATING PUMPS:
- Furnish and install, as indicated on the plans and specifications, Armstrong Series 4030 base mounted centrifugal pumps.
- The pump shall be single, end suction type with radially split, top center-line discharge, self-venting casing. The casing-to-cover gasket shall be confined on the atmospheric side to prevent blow-out possibility.
- Pump construction shall be cast iron, bronze fitted (all iron, all bronze, ductile iron) and shall be fitted with a long-life, product lubricated, drip-tight mechanical seal, with O-ring seat retainer, designed for the specified maximum temperature and pressure.
- The shaft shall be fitted with a Stainless Steel shaft sleeve and be supported by two heavy duty ball bearings. The design shall allow Back Pull Out servicing, enabling the complete rotating assembly to be removed without disturbing the casing piping connections.
- The pump shall be mounted on a rigid, single piece baseplate, with grouting hole, and connected by flexible coupling, with guard, to a __hp, __Hz, _ph, __volts, __rpm, __enclosure squirrel cage, induction type motor of standard (premium, __%) efficiency and suitable for across-the-line (wye-delta, part wind) starting.
- The housing shall be hydrostatically tested to 150% maximum working pressure.
- The unit shall be suitable for the conditions shown on the pump schedule.
