{"product_id":"calpeda-gqr-10-20-cast-iron-manual-submersible-drainage-pump-ponds-open-impeller","title":"Calpeda GQR 10-20 Cast Iron Manual Submersible Drainage Pump for Ponds with Open Impeller","description":"\u003cp\u003ePond water drainage and high-volume extraction from collection pits require the robust industrial performance of the Calpeda GQR 10-20. This three-phase submersible pump is designed for continuous duty with clean water containing solids up to 10 mm. It is ideal for civil and industrial water transfer tasks where liquid temperatures do not exceed 35°C and pH levels remain between 6 and 11.\u003c\/p\u003e\u003cp\u003ePowered by a 1.5 kW 415v motor drawing 3.8 Amps, this model achieves a total head of 19.5 m and a maximum flow rate of 500 L\/min. Pumped liquid provides continuous motor cooling during operation by circulating through the external jacket. This self-cooling capability ensures the unit can operate safely during extended run cycles even when only partially submerged in pits or tanks.\u003c\/p\u003e\u003cp\u003eHydraulic performance is produced by a single open impeller configuration that enables the passage of solids without compromising flow efficiency. The vertical threaded delivery port is ISO 228 G 1 1\/2 compatible, and the unit features an integrated AISI 304 stainless steel filter to protect the cast iron hydraulics. Manual operation allows for service with a minimum immersion depth of 265 mm.\u003c\/p\u003e\u003cp\u003eConstruction features a cast iron GJL 200 pump casing and impeller, with an AISI 304 stainless steel external jacket. Sealing is managed by a double mechanical shaft seal with an oil chamber containing food-grade and pharmaceutical-safe oil. The motor features a triple impregnation humidity-proof dry winding and is suitable for permanent underwater installation at depths up to 5 meters.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFEATURES\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStructural durability is provided by a cast iron pump body and impeller for heavy-duty drainage applications.\u003c\/li\u003e\n\u003cli\u003eDouble mechanical shaft sealing with an integrated oil chamber protects the motor against fluid ingress.\u003c\/li\u003e\n\u003cli\u003eOil chamber for seal lubrication is filled with specialized oil safe for food and pharmaceutical machinery.\u003c\/li\u003e\n\u003cli\u003eInternal motor cooling is achieved by the pumped liquid flowing between the motor jacket and external jacket.\u003c\/li\u003e\n\u003cli\u003eOpen impeller design facilitates the handling of clean water with suspended solids up to 10 mm in diameter.\u003c\/li\u003e\n\u003cli\u003eThe 2-pole induction motor is designed for three-phase 415v high-efficiency industrial water transfer.\u003c\/li\u003e\n\u003cli\u003eTriple impregnation humidity-proof dry winding used for the motor to ensure operational durability.\u003c\/li\u003e\n\u003cli\u003eCertified IP X8 protection rating facilitates continuous duty immersion at depths reaching up to 5 meters.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Calpeda","offers":[{"title":"Default Title","offer_id":50914706555127,"sku":"GQR 10-20","price":1383.45,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0927\/0116\/3767\/files\/calpeda-gqr-10-20-cast-iron-manual-submersible-drainage-pump-ponds-open-impeller.png?v=1783147719","url":"https:\/\/foundationpumps.com.au\/products\/calpeda-gqr-10-20-cast-iron-manual-submersible-drainage-pump-ponds-open-impeller","provider":"Foundation Pumps","version":"1.0","type":"link"}