{"product_id":"rule-56d-4000-series-submersible-bilge-pump-4000-gph","title":"Rule 56D 4000 Series Submersible Bilge Pump - 4000 GPH","description":"\u003cp\u003eThe Rule 56D \/ 56D-24 is a non-automatic submersible bilge pump rated at 4,000 GPH (15,140 LPH; approx. 252 litres\/minute). It is designed for high-capacity bilge drainage on larger yachts, motor cruisers and workboats, uses 51 mm (2 in) discharge hose and requires a suitably rated float switch and\/or panel switch for automatic operation.\u003c\/p\u003e\u003cp\u003eThe Rule 56D \/ 56D-24 removes nuisance water from a boat bilge using a fully submersible centrifugal pump. The snap-lock strainer provides access to the impeller area for routine cleaning, while the stainless-steel shaft, blocked marine wiring, corrosion-resistant housing and built-in thermal cut-off are intended for permanent marine installation.\u003c\/p\u003e\u003ch4\u003eProduct Identification\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Rule\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct name:\u003c\/strong\u003e Rule 56D 4000 Series Submersible Bilge Pump - 4000 GPH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel \/ part number:\u003c\/strong\u003e 56D \/ 56D-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMarine Scene SKU:\u003c\/strong\u003e CW-56D \/ CW-56D-24\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct category:\u003c\/strong\u003e Standard submersible bilge pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated open flow:\u003c\/strong\u003e 4,000 GPH (15,140 LPH; approx. 252 litres\/minute)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 12V DC \/ 24V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomatic operation:\u003c\/strong\u003e No - use a suitably rated float switch and\/or panel switch for automatic control\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge hose size:\u003c\/strong\u003e 51 mm (2 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCurrent draw:\u003c\/strong\u003e 10.2A at 12V; 12.1A at 13.6V \/ 6.9A at 24V; 10.0A at 27.2V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended fuse:\u003c\/strong\u003e 25A \/ 15A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity supplied:\u003c\/strong\u003e One pump\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhat Is the Rule 56D \/ 56D-24 Bilge Pump Used For?\u003c\/h4\u003e\u003cp\u003eThis pump is used for high-capacity bilge drainage on larger yachts, motor cruisers and workboats. It is a standard, non-automatic pump: power must be controlled by a separate Rule float switch, compatible panel switch or another correctly rated control device.\u003c\/p\u003e\u003ch4\u003eWhat Is Included?\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOne Rule submersible bilge pump\u003c\/li\u003e\n\u003cli\u003eIntegral or snap-lock strainer base\u003c\/li\u003e\n\u003cli\u003eFactory-fitted marine-grade electrical leads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhat Is Not Included?\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eFloat switch or control panel\u003c\/li\u003e\n\u003cli\u003eDischarge hose, through-hull fitting and hose clips\u003c\/li\u003e\n\u003cli\u003eCable extensions, waterproof connectors and circuit-protection fuse\u003c\/li\u003e\n\u003cli\u003eInstallation hardware not supplied with the packaged pump\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhich Boats and Bilge Systems Is This Pump Suitable For?\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSuitable for high-capacity bilge drainage on larger yachts, motor cruisers and workboats.\u003c\/li\u003e\n\u003cli\u003eConnect to 51 mm (2 in) discharge hose and a correctly positioned above-waterline discharge outlet.\u003c\/li\u003e\n\u003cli\u003eChoose the variant that matches the vessel electrical system: 12V \/ 24V.\u003c\/li\u003e\n\u003cli\u003eUse only with switching, cabling and circuit protection rated for the pump voltage and current.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIs a Separate Float Switch Required?\u003c\/h4\u003e\u003cp\u003eNo - use a suitably rated float switch and\/or panel switch for automatic control\u003c\/p\u003e\u003ch4\u003eWhich Voltage Should I Choose?\u003c\/h4\u003e\u003cp\u003eChoose the version that matches the vessel electrical system: 12V DC \/ 24V DC. A pump must only be connected to its stated DC supply voltage.\u003c\/p\u003e\u003ch4\u003eHow Do I Select the Correct Pump?\u003c\/h4\u003e\u003cp\u003eConfirm the complete installation rather than selecting by nominal GPH rating alone:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupply voltage:\u003c\/strong\u003e 12V DC \/ 24V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRated open flow:\u003c\/strong\u003e 4,000 GPH (15,140 LPH; approx. 252 litres\/minute)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDischarge hose:\u003c\/strong\u003e 51 mm (2 in)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstalled space:\u003c\/strong\u003e 197 x 121 mm (H x W)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCircuit protection:\u003c\/strong\u003e 25A \/ 15A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow at 1 m head:\u003c\/strong\u003e 3,527 GPH (13,351 LPH)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow at 2 m head:\u003c\/strong\u003e 2,952 GPH (11,174 LPH)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eDoes the Published Flow Equal the Installed Flow?\u003c\/h4\u003e\u003cp\u003eNo. The nominal capacity is an open-flow rating. Actual output reduces as discharge head, hose length, bends, restrictions and electrical voltage drop increase. Use the published flow-at-head figures where available and keep the discharge route as short and unrestricted as practical.\u003c\/p\u003e\u003ch4\u003eConstruction and Design\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement strainer part number:\u003c\/strong\u003e 279\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackflow prevention:\u003c\/strong\u003e No integral non-return valve stated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal protection:\u003c\/strong\u003e Built-in thermal cut-off\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIgnition protection:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e CE; ISO 8849 marine bilge-pump standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eInstallation and Safety\u003c\/h4\u003e\u003cp\u003eMount the pump at the lowest practical point of the bilge while retaining access for strainer cleaning. Keep all electrical joints above the maximum anticipated bilge-water level, fit the manufacturer-specified fuse close to the power source, minimise hose length and bends, and route the discharge to prevent siphoning or backflow. Test both manual and automatic control after installation and during routine vessel checks.\u003c\/p\u003e\u003ch4\u003eMaintenance\u003c\/h4\u003e\u003cp\u003eInspect and test the complete bilge-pump system regularly and before extended passages. Reduced flow, repeated fuse failure, unusual noise or slow switching requires investigation before the vessel is used.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRemove debris from the strainer and impeller area.\u003c\/li\u003e\n\u003cli\u003eInspect the discharge hose, clips, through-hull and anti-siphon arrangement.\u003c\/li\u003e\n\u003cli\u003eCheck the wiring, fuse, terminals and control switch for heat, corrosion or damage.\u003c\/li\u003e\n\u003cli\u003eTest manual and automatic operation after cleaning or service.\u003c\/li\u003e\n\u003cli\u003eReplace damaged components rather than operating an unreliable bilge system.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNominal open-flow capacity: 4,000 GPH (15,140 LPH; approx. 252 litres\/minute)\u003c\/li\u003e\n\u003cli\u003eNon-automatic design for use with a separate switch\u003c\/li\u003e\n\u003cli\u003eEasy-clean strainer base and accessible impeller cavity\u003c\/li\u003e\n\u003cli\u003eBuilt-in thermal cut-off\u003c\/li\u003e\n\u003cli\u003eMarine-grade blocked wiring and stainless-steel shaft\u003c\/li\u003e\n\u003cli\u003eIgnition protected; CE and ISO 8849 compliant\u003c\/li\u003e\n\u003cli\u003eHigh-capacity 51 mm discharge connection\u003c\/li\u003e\n\u003cli\u003e12V and 24V variants\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFrequently Asked Questions\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eIs this Rule bilge pump automatic?\u003c\/strong\u003e\u003cbr\u003eNo. It is a standard pump and requires a separate float switch and\/or panel switch for automatic operation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I choose between the available variants?\u003c\/strong\u003e\u003cbr\u003eSelect the model that matches the vessel supply voltage. Do not connect a 12V \/ 24V pump to a different-voltage circuit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill the pump deliver the full rated output after installation?\u003c\/strong\u003e\u003cbr\u003eNot necessarily. The published rating is an open-flow figure; actual delivery falls as vertical head, hose length, bends, restrictions and voltage drop increase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan this pump replace routine bilge inspection?\u003c\/strong\u003e\u003cbr\u003eNo. A bilge pump is one part of a vessel water-management system. Inspect the bilge, hoses, wiring, discharge outlet and switch regularly.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cdiv style=\"width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable class=\"spec-table\" style=\"width: 100%; border-collapse: collapse; font-family: Roboto, Arial, sans-serif; background: #ffffff; text-align: center;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: center; font-weight: 500;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: center; font-weight: 500;\"\u003e56D\u003c\/th\u003e\n\u003cth style=\"border: 1px solid #ddd; padding: 8px; text-align: center; font-weight: 500;\"\u003e56D-24\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eRule\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eRule\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eProduct category\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eStandard submersible bilge pump\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eStandard submersible bilge pump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eMarine Scene SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCW-56D\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCW-56D-24\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eRated open flow\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e4,000 GPH (15,140 LPH; approx. 252 litres\/minute)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e4,000 GPH (15,140 LPH; approx. 252 litres\/minute)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e12V DC\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e24V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eAutomatic operation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eNo - use a suitably rated float switch and\/or panel switch for automatic control\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eNo - use a suitably rated float switch and\/or panel switch for automatic control\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eCurrent draw\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e10.2A at 12V; 12.1A at 13.6V\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e6.9A at 24V; 10.0A at 27.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eRecommended fuse\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e25A\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e15A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eFlow at 1 m head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e3,527 GPH (13,351 LPH)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e3,527 GPH (13,351 LPH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eFlow at 2 m head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e2,952 GPH (11,174 LPH)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e2,952 GPH (11,174 LPH)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eMaximum recommended discharge head\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e4 m\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e4 m\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e197 x 121 mm (H x W)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e197 x 121 mm (H x W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eDischarge hose size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e51 mm (2 in)\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e51 mm (2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eReplacement strainer part number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e279\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e279\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eBackflow prevention\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eNo integral non-return valve stated\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eNo integral non-return valve stated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eThermal protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eBuilt-in thermal cut-off\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eBuilt-in thermal cut-off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eIgnition protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eYes\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003e\u003cstrong\u003eStandards\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCE; ISO 8849 marine bilge-pump standard\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px; text-align: center;\"\u003eCE; ISO 8849 marine bilge-pump standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\u003cp\u003e\u003cem\u003eFlow ratings are nominal open-flow figures. Installed output will reduce as discharge head, hose length, bends, restrictions and supply-voltage loss increase.\u003c\/em\u003e\u003c\/p\u003e","brand":"Rule","offers":[{"title":"12v","offer_id":54837974106489,"sku":"ASAP-504132","price":241.98,"currency_code":"GBP","in_stock":true},{"title":"24v","offer_id":54837974139257,"sku":"ASAP-504134","price":272.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0773\/6151\/2725\/products\/56d24_4a2bfd0d-a627-4888-bc28-d0aa66cf2ac9.jpg?v=1698134971","url":"https:\/\/marinescene.co.uk\/products\/rule-56d-4000-series-submersible-bilge-pump-4000-gph","provider":"Marine Scene","version":"1.0","type":"link"}