{"product_id":"tsurumi-50u21-5-cast-iron-recessed-submersible-sewage-pump-for-lifting-stations-with-vortex-impeller","title":"Tsurumi 50U21.5 Cast Iron Recessed Submersible Sewage Pump for Lifting Stations with Vortex Impeller","description":"\u003cp\u003eMunicipal wastewater systems often demand robust solids-handling capabilities in wet well installations. This Tsurumi vortex pump operates in sewage lifting stations and collection pits, handling raw sewage and unscreened storm water. It provides active flow management for municipal projects and commercial buildings where clogging represents a significant risk.\u003c\/p\u003e\n\u003cp\u003eOperating on a Three-phase, 415 V supply, the unit is powered by a 1.5 kW induction motor. This motor configuration produces a rated current of 3.5 Amps and operates at a synchronous speed of 3000 rpm. The hydraulic design delivers a maximum head of Approximately 20.5 m and a maximum flow of Approximately 330 L\/Min, handling varying system pressures.\u003c\/p\u003e\n\u003cp\u003eRotation of the vortex impeller generates a rapid centrifugal flow within the wide pump casing. This physical arrangement allows solids up to 35mm to pass without direct contact with the impeller vanes, preventing clogging and winding of fibrous materials. The low-height volute casing minimizes wear from grit and abrasive particulates during raw sewage drainage.\u003c\/p\u003e\n\u003cp\u003eThe physical construction features a high-grade cast iron pump body and a 420 stainless steel shaft. A double mechanical seal in an oil chamber has silicon carbide lower and ceramic upper faces. The pump operates in liquids up to 40°C and supports optional TOS guide rail fitting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSilicon carbide lower faces run in oil to ensure reliable shaft sealing.\u003c\/li\u003e\n\u003cli\u003eForcibly supplies turbine oil to seal faces, ensuring cooling even if oil volume drops, preventing dry run mechanical seal failure.\u003c\/li\u003e\n\u003cli\u003eStainless steel shaft resists rotational fatigue and mechanical stresses.\u003c\/li\u003e\n\u003cli\u003eBuilt-in thermal protector directly cuts the circuit during overcurrent.\u003c\/li\u003e\n\u003cli\u003eRecessed design creates a whirlpool flow to handle sewage without clogging or winding of fibrous materials.\u003c\/li\u003e\n\u003cli\u003eWatertight entry prevents capillary water ingress into the motor conductors.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Tsurumi","offers":[{"title":"Default Title","offer_id":50947169845495,"sku":"50U21.5","price":0.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/tsurumi-50u21-5-cast-iron-recessed-submersible-sewage-pump-for-lifting-stations-with-vortex-impeller.png?v=1784275734","url":"https:\/\/foundationpumps.com.au\/products\/tsurumi-50u21-5-cast-iron-recessed-submersible-sewage-pump-for-lifting-stations-with-vortex-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}