{"product_id":"lowara-12gs11-1-stainless-steel-4-submersible-bore-pump-for-pressure-boosting-with-floating-impeller","title":"Lowara 12GS11-1 Stainless Steel 4\" Submersible Bore Pump for Pressure Boosting with Floating Impeller","description":"\u003cp\u003eWhere consistent groundwater delivery is essential for domestic supply and agricultural transfer, the Lowara 8GS11-1 provides dependable extraction from 4-inch drilled wells. This submersible bore pump handles continuous operation in sprinkler irrigation and residential water systems, maintaining performance even when the source contains suspended sand or silt. The floating impeller system ensures stable flow under varying drawdown conditions.\u003c\/p\u003e\u003cp\u003ePower comes from a 1.1 kW single-phase motor running on 240 V, drawing 7.6 Amps during normal duty. Maximum flow reaches 183 L\/Min, while maximum head extends to 37.2 metres at shut-off. The motor requires a minimum fluid velocity of 8 cm\/s around the casing for adequate cooling, and supports up to 30 starts per hour for intermittent operation. This combination makes the unit suitable for systems where demand fluctuates throughout the day.\u003c\/p\u003e\u003cp\u003eWithin the hydraulic section, floating impellers allow suspended particles up to 150 g\/m3 to pass without compromising internal clearances or efficiency. The hexagonal shaft delivers torque reliably across all stages, while the front wear ring works with the floating impeller to improve abrasion resistance. An integrated stainless steel check valve prevents destructive backflow when the motor stops, protecting the system from water hammer.\u003c\/p\u003e\u003cp\u003ePrecision-cast stainless steel upper and lower supports maintain rigid alignment between the pump and motor under load. The 99 mm diameter casing fits standard 4-inch boreholes, with a 50 mm threaded outlet for connection to rising mains. Rated for continuous immersion in liquids up to 35°C, the complete unit comes with a control box and heatshrink kit for secure electrical connections.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKEY FEATURES \u0026amp; BENEFITS\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFloating impeller design handles abrasive groundwater without performance loss\u003c\/li\u003e\n\u003cli\u003eHexagonal stainless steel shaft provides effective drive across all pump stages\u003c\/li\u003e\n\u003cli\u003eFront wear ring improves resistance to abrasive wear in sandy conditions\u003c\/li\u003e\n\u003cli\u003eIntegrated non-return valve prevents reverse flow on motor shutdown\u003c\/li\u003e\n\u003cli\u003eAISI 304 stainless steel construction offers corrosion resistance during submersion\u003c\/li\u003e\n\u003cli\u003eTechnopolymer impeller reduces starting torque requirements\u003c\/li\u003e\n\u003cli\u003eComplete with control box and heatshrink kit for rapid installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Lowara","offers":[{"title":"Default Title","offer_id":50985366192375,"sku":"12GS11-1","price":2275.85,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/lowara-12gs11-1-stainless-steel-4-submersible-bore-pump-for-pressure-boosting-with-floating-impeller.png?v=1785405692","url":"https:\/\/foundationpumps.com.au\/products\/lowara-12gs11-1-stainless-steel-4-submersible-bore-pump-for-pressure-boosting-with-floating-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}