4-Inch Dimensions
* Low viscous liquids and liquids containing
small-sized foeign substances
* PH:4-9
* Maximum liquid density:1100kg/m3
* Liquid temperature: 0 ~50℃
Applications
These motors are built for dependable operation in
4" diameter or larger water wells.
Basic Features
·Corrosion-resistant Stainless Steel Exterior
·Stainless Steel Splined Shaft
·Hermetically-sealed Windings
·Anti-track Self-healing Resin System
·Filter Check Valve
·Water Lubrication
·Kingsbury-type Thrust Bearing
·Pressure-equalizing Diaphragm
·Built-in Lightning Arrestors (All Single-phase;200 & 230 V Three-Phase)
·Removable Water Bloc Lead
·USR-manufactured Control Boxes Available for Single-Phase Motors
Special Features
·No fl ow inducer sleeve required in water up to 86 F (30 C) for motors through 2 Hp.
·Two-wire motors are split-phase designs with integral starting components and do not require a
control box. They feature same as Franklins 2-wire BIAC starting switch which provides Reverse
Impact Torque to aid starting in adverse environments and prevents extreme fast cycling (e.g.
water logged tank).
·Three-wire motors through 1 Hp use Franklins exclusive 3-wire QD (Quick Disconnect) Control Box
with the patented QD Relay. This relay provides the ultimate in operational life.
·Single-phase motors can be used with Pumptec products to protect against dry-run and other installation
conditions that can damage motors and/or pumps. See Single-phase Protection Devices for
details.
Constant Pressure Options
·Use USR's SPC1 controller with 1 1/2 Hp three-wire single-phase motors to provide constant
water pressure.
·Three-phase motors can b e used with USR's SPC3 controllers to provide constant water pressure.
Pollution Recovery Option
·Pollution Recovery motors are equipped for use in monitoring and recovery wells in which hydrocarbons and
other chemicals may be present.
·Special Viton rubber parts and other chemical
Single-phase Motors
3 Phase
Single Phase
3 Phase
