Pump Sales
Welcome
Registered Manufacturer
Member of ISPE, AFE.
Est. Since 1967
VF2
To confirm information about any of our products please contact a specialist by calling or emailing us directly.
Telephone: 978-657-5189
Email: office@twtic.com
Highlights
- Vertical Submerged
- Heavy Duty
- Automatic
- Single or Duplex
- For Drainage
- For Seepage Water
- For Boiler Blow-Off
- Pit Covers
- Grouting Frames
- Steel Basins
Features
MOTORS: Nationally recognized manufacture in standard NEMA frame sizes and mounted on rigid single piece cast iron pedestals, rabbetted to assure perfect alignment on pump and motor shaft. Ball bearings are sealed against dirt and moisture and do not require field lubrication. Motors on standard units are drip-proof. Totally enclosed and explosion proof motors also available. Single phase (115/230v.) motors have built-in thermal overload protection in fractional frame sizes. Single phase motors in integral frame sizes and 3 phase (208- 230/460V) motors should be provided with magnetic starters.
FLOAT SWITCH: Double break switch in steel enclosure, actuated by copper float, with brass rod and stops.
FLEXIBLE COUPLING: Precision machined with one-piece load cushion. No wear on metal jaws; load is absorbed by cushion compression.
SUSPENSION PLATE: Fourteen inch diameter cast iron suspension plate is standard. Twenty inch diameter steel suspension plates also available.
HANGER PIPE: Seamless steel pipe to insure rigid support for casing and accurate bearing alignment.
DISCHARGE PIPE: Discharge pipe firmly supported at floor plate to prevent piping strain on pump.
SHAFT: Carbon steel, diameter sized to operate at maximum speed without vibration or deflection. Micrometer adjustment provided above thrust bearing allows for proper location of impeller and suction plate.
BEARINGS: Oversize ball thrust bearing carries the weight of impeller and shaft; located in a sealed housing fully protected from dirt and moisture. Bronze guide bearings at pump casing and at intervals along shaft, prevent radial deflection. Intermediate bearings are grease lubricated. Lower bearing is self-lubricating and suitable for pumping hot or cold water. Special Teflon, Micarta, cutless rubber and iron bearings, are also available if job conditions demand.
IMPELLER: Single-piece cast bronze impeller, machined and balanced, held firmly against shaft shoulder with key and lock nut.
CASING: Centrifugal design, accurately machined for uniform clearance of impeller and rigid connection to hanger pipe. Large area cast iron strainer fastened to bottom of casing.
COVERS AND BASINS: Pit covers are available for round, square, or rectangular sump pits. Covers can be furnished with grouting frames if desired. Steel and cast iron sump basins of all diameters and depths are also available. Covers and basins are fabricated to suit pump suspension plates and control openings and include vent connection and handhole or manhole. Basin inlet sizes and locations are determined by job conditions.
MATERIALS OF CONSTRUCTION: Standard bronze-fitted pumps have bronze impellers, pump bearing and intermediate bearings. Casing, suction plate, motor pedestal and strainer are cast iron suspension plate. Hanger pipe and discharge pipe are steel. Pumps of all-bronze, or all-iron construction also available.
SINGLE AND DUPLEX UNITS:
Single units include one pump and motor, one float switch, one magnetic starter (if required), and one pit cover or basin.
Duplex units include two pumps and motors, two float switches*, two magnetic starters (if required), and one pit cover or basin.
*One alternating float switch can be furnished on duplex units, instead of the two float switches, to alternate the operation of the two pumps, and to provide two-pump simultaneous operation in the event one pump cannot handle the in-flow.