The Franklin 20AMH4B-53 is a three-phase horizontal multistage pump for clean-water transfer, pressure boosting, irrigation and washdown.
Suitable applications include commercial, agricultural and industrial water distribution and compatible circulation systems.
Supplied as a bare pump-and-motor unit. Automatic start/stop operation requires a suitable separate controller; a pressure tank is not included.
20AMH4B-53: 333.3LPM at 46.3m head; maximum head 62.5m; 4kW motor.
The paired figures show flow and head together; they are reference points, not maximum-flow ratings or a nominated ideal duty. Maximum head occurs at zero flow. Allow for inlet conditions, height differences and pipe losses when selecting the pump.
Inlet: 2" BSP female thread.
Outlet: 1 1/2" BSP female thread.
The pump body, impellers and diffusers are 304 stainless steel, with reinforced tie-rod construction and a carbon/silicon-carbide mechanical seal with EPDM elastomer. Use clean water without solids or fibres, compatible with the pump materials. Maximum water temperature is 85°C for domestic and commercial use; the 110°C limit is for industrial applications only.
The pump is not self-priming. Fill the pump casing and suction pipe before starting, and use suitable inlet valves to retain prime where suction lift is required. Install on a firm base with drainage, supported pipework, ventilation and protection from weather and freezing. Do not run without water or against a closed outlet.
Maximum operating pressure is 1000kPa; inlet pressure and the pressure added by the pump must remain within this limit.
The stocked versions use a 380–415V three-phase, 50Hz supply. Connection by an electrician and suitable external motor overload protection are required.
Two-year Franklin Electric pump warranty, subject to its terms.
