{"product_id":"ultraflex-pompa-a-montaggio-frontale","title":"Ultraflex Front-Mounted Pump","description":"\u003cp\u003eThe Ultraflex front-mounted pumps for hydraulic steering come in the UP20F, UP25F, UP28F, UP33F and UP39F models. All have a check valve, which prevents the system from back-driving, and a pressure relief valve, with a 3\/4\" tapered shaft and elbow fittings for 3\/8\" hose. The UP20F has a corrosion-resistant composite reservoir and swivelling fittings. The UP25F, UP28F, UP33F and UP39F have a compact build with an axial piston system, a stainless steel shaft, a cast iron rotor for longer life and front oil filling, with 1\/4\" NPT fittings.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eTechnical specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003e\u003cstrong\u003eMounting:\u003c\/strong\u003e front, semi-flush possible with flange\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eShaft:\u003c\/strong\u003e 3\/4\" tapered (stainless steel on UP25F–UP39F)\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eValves:\u003c\/strong\u003e check valve and pressure relief valve\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eFittings:\u003c\/strong\u003e elbow for 3\/8\" hose (swivelling on UP20F; 1\/4\" NPT on UP25F–UP39F)\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eReservoir:\u003c\/strong\u003e corrosion-resistant composite (UP20F)\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eSystem:\u003c\/strong\u003e axial pistons, cast iron rotor, front oil filling (UP25F–UP39F)\u003c\/li\u003e\u003cli\u003e\u003cstrong\u003eSemi-flush flange:\u003c\/strong\u003e X74 for UP20F; X57 or X64 for UP25F–UP39F\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eHow to choose\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe UP20F is the pump in the Hytech OBF kits (up to 175 HP); the UP28F is the one in the Nautech 1 OBF kit (up to 300 HP). Compared with the UP20F, the UP25F, UP28F, UP33F and UP39F have a compact axial-piston build with a stainless steel shaft and a cast iron rotor.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's included and what else you need\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eThe pump only: a complete steering system also needs a cylinder, hoses and hydraulic oil\u003c\/li\u003e\u003cli\u003eFor semi-flush mounting you need the flange: X74 for the UP20F; X57 or X64 for the UP25F–UP39F\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFrequently asked questions\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan I tilt the steering wheel?\u003c\/strong\u003e\u003cbr\u003eYes, with the X72 steering wheel adjustment system: 60° in total across 5 positions, suited to the UP25F, UP28F, UP33F and UP39F pumps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat stops the system from back-driving?\u003c\/strong\u003e\u003cbr\u003eThe check valve fitted to all the pumps, together with the pressure relief valve.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat hose is needed?\u003c\/strong\u003e\u003cbr\u003eThe fittings are elbow type for 3\/8\" hose (1\/4\" NPT on the UP25F–UP39F).\u003c\/p\u003e","brand":"Ultraflex","offers":[{"title":"UP20F","offer_id":58884518773067,"sku":"UF4344620","price":379.7,"currency_code":"EUR","in_stock":true},{"title":"UP25F","offer_id":58884518805835,"sku":"UF4344625","price":470.45,"currency_code":"EUR","in_stock":false},{"title":"UP28F","offer_id":58884518838603,"sku":"UF4344628","price":481.3,"currency_code":"EUR","in_stock":true},{"title":"UP33F","offer_id":58884518871371,"sku":"UF4344633","price":684.3,"currency_code":"EUR","in_stock":true},{"title":"UP39F","offer_id":58884518904139,"sku":"UF4344639","price":973.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/8121\/6587\/files\/ultraflex-pompa-a-montaggio-frontale.jpg?v=1792261518","url":"https:\/\/mareshop.eu\/en\/products\/ultraflex-front-mounted-pump","provider":"Mareshop","version":"1.0","type":"link"}