{"product_id":"be-pressure-twin-20021-pressure-washer","title":"BE 2,175 PSI 3-Phase Electric Pressure Washer - 21 L\/min, Interpump | TWIN 20021","description":"\u003cp\u003eThe TWIN 20021 is a cold water 3-phase electric pressure washer rated at 2,175 PSI and 21 litres a minute. The pump is Interpump plunger.\u003c\/p\u003e\u003ch3\u003eManufacturer specifications\u003c\/h3\u003e\u003ch4\u003eCold water High Pressure Cleaner - Twin\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eThe Cold Water High Pressure Cleaner Twin is produced in painted steel cabinet and with an aluminum frame.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure:\u003c\/strong\u003e 2900 Psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow:\u003c\/strong\u003e 21 L\/min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor:\u003c\/strong\u003e 7.5 Kw 10 Hp 230\/400 V Three Phase\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump:\u003c\/strong\u003e WS202\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 105 cm x 63 cm x 175 cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eThe TWIN cabinet is equipped with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNr. 02 Electric motors (different depending on the version)\u003c\/li\u003e\n\u003cli\u003eNr. 02 Interpump pumps (different depending on the version)\u003c\/li\u003e\n\u003cli\u003eNr. 02 VS220 Safety valves\u003c\/li\u003e\n\u003cli\u003eNr. 02 13 L Water tanks (not available in the 200\/30 version)\u003c\/li\u003e\n\u003cli\u003eNr. 02 Bypass valves\u003c\/li\u003e\n\u003cli\u003eNr. 02 Water nozzles\u003c\/li\u003e\n\u003cli\u003eNr. 02 Not return valves\u003c\/li\u003e\n\u003cli\u003eFrost protection insulating panels (on demand)\u003c\/li\u003e\n\u003cli\u003eLow water level floater\u003c\/li\u003e\n\u003cli\u003eInsulating system\u003c\/li\u003e\n\u003cli\u003e10 M high pressure hose, lance and professional gun\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eA study in how the Twin Works:\u003c\/strong\u003e\u003cbr\u003e\nThere is often confusion about how a machine with 2 Motor\/Pump groups work. Below is a case study to help.\u003c\/p\u003e\n\u003cp\u003eA large factory had a need to undertake Pressure Cleaning in 2 different works areas, with both guns sometimes operating at the same time.\u003c\/p\u003e\n\u003cp\u003eThey requested a Single Cabinet machine, with 2 Motor\/Pump sets. They wanted a single outlet on the machine, to be plumbed into pipework that led to both of the Gun\/Hoses. They had previously used another brand that included an electronic board, and were unhappy with the (regular) large repair costs to the PCB Board.\u003c\/p\u003e\n\u003cp\u003eThe BAR Twin was been designed to satisfy this requirement, and operates as follows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWhen one gun is opened, one pump starts. When the second gun is opened, while first is still running, the second pump starts.\u003c\/li\u003e\n\u003cli\u003eWhen both pumps are running, one pump turns off if one of the two guns is closed. Both pumps will turn off if both guns are closed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTechnically:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEach pump-motor set of the TWIN cleaner has its own bypass valve\u003c\/li\u003e\n\u003cli\u003eOne of the two valves is calibrated at a slightly lower pressure than the other\u003c\/li\u003e\n\u003cli\u003eThe starting of the pumps is NOT random, the same pump always starts\u003c\/li\u003e\n\u003cli\u003eImportantly, when both guns are closed, there is the correct water hammer (therefore a damper should not be used).\u003c\/li\u003e\n\u003cli\u003eThe Twin is a mechanical system and does not have the same precision as electronics but it is the simpler and more effective method.\u003c\/li\u003e\n\u003cli\u003eThe Twin decides which pump to start first, by using the following: For eg, in the case of a TWIN 200BAR, one bypass valve is set at 200 bar while the other at 190-195 bar.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen a gun is closed, the slightly lower calibrated bypass valve intervenes and switches to bypass and stops the pump.\u003c\/p\u003e\n\u003cp\u003eThe bypass goes into the water tank which is a safe system in case a pump does not stop. Over time, the calibration of the unloaders should be swapped, to even out the usage of each Pump.\u003c\/p\u003e\u003ch3\u003eAt a glance\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor - kW\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor - Speed - RPM\u003c\/td\u003e\n\u003ctd\u003e1400\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor - V\u003c\/td\u003e\n\u003ctd\u003e415Amp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet - Amps - A\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump - Brand\u003c\/td\u003e\n\u003ctd\u003eInterpump\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump - Type\u003c\/td\u003e\n\u003ctd\u003ePlunger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eManuals and parts\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bep.kiwi\/wp-content\/uploads\/2026\/07\/103-TWIN-20021_manual.pdf\" target=\"_blank\" rel=\"noopener\"\u003eOwner's manual (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.bep.kiwi\/wp-content\/uploads\/2026\/07\/103-TWIN-20021_parts.pdf\" target=\"_blank\" rel=\"noopener\"\u003eParts diagram (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BE Pressure","offers":[{"title":"Default Title","offer_id":50754568388837,"sku":"103 TWIN 20021","price":17086.7,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1861\/7207\/files\/63611680b169786cc20537bea1e01e43.jpg?v=1784974285","url":"https:\/\/www.toolfactory.co.nz\/products\/be-pressure-twin-20021-pressure-washer","provider":"Tool Factory","version":"1.0","type":"link"}