{"product_id":"dayliff-24l-10bar-diaphragm-pressure-kit","title":"DAYLIFF 24L 10BAR DIAPHRAGM PRESSURE KIT","description":"\u003cp\u003ePressure tanks are important components of pressurised booster supply systems where automatic pumped water supply is provided by means of pressure switch controlled pumps. The tanks have two functions; to cushion pressure surges as the pump starts and stops and also to provide a drainage supply into the system to control pump cycling. Options are as follows:-\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDayliff VT\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseries pressure tanks have been specially designed for pressurised booster installations and are also suitable for firefighting and irrigation systems. The design incorporates a replaceable butyl rubber membrane which offers the following features:-\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSuitable for all types, including corrosive and hard, waters as the water only comes into contact with the membrane.\u003c\/li\u003e\n\u003cli\u003eMembrane design eliminates the necessity for constant air recharging.\u003c\/li\u003e\n\u003cli\u003eHorizontally collapsing membranes (except KS model) avoids contact with tank sides and therefore increases life.\u003c\/li\u003e\n\u003cli\u003eMembrane is simply replaceable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDayliff DVX\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eseries are higher specification diaphragm type tanks which are specially suited for medium to heavy duty pressure boosting and storage applications where value and reliability are demanded. Features include;\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePolypropylene liner and butyl diaphragm for long life and safety.\u003c\/li\u003e\n\u003cli\u003eCorrosion resistant baked epoxy coating finish.\u003c\/li\u003e\n\u003cli\u003eLeaf-free, O-ring sealed air valve cap dispensing the need for maintenance.\u003c\/li\u003e\n\u003cli\u003eAISI S\/S 304 water connection to protect against corrosion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll Dayliff pressure tanks are thoroughly tested and conform to various international standards and when properly specified will provide many years of reliable maintenance free operation\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePressure Tank Sizing Guide\u003c\/strong\u003e\u003cbr\u003eCorrect tank sizing is important and is determined by the system flow rate and pump start and stop pressure settings. Sizing must be based upon the system flow at which the maximum cycle frequency occurs. As a rule of thumb this can be taken as 65% of the flow at pump stop pressure.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv id=\"hikashop_product_bottom_part\" class=\"hikashop_product_bottom_part\"\u003e\n\u003cdiv id=\"hikashop_product_description_main\" class=\"hikashop_product_description_main\" itemprop=\"description\"\u003e\n\u003cp\u003eRequired draining volume is then the maximum cycle frequency flow divided by twice the specified maximum number of cycles per hour. Generally 60 cycles per hour is considered acceptable. Tank size selected is then that nearest to the volume required. Drainage volume is as follows:-\u003c\/p\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003ctable class=\"table table-striped table-bordered table-hover table-sm\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eTank Pre-charge (Bar)\u003c\/td\u003e\n\u003ctd\u003e1.35\u003c\/td\u003e\n\u003ctd\u003e1.65\u003c\/td\u003e\n\u003ctd\u003e1.85\u003c\/td\u003e\n\u003ctd\u003e2.35\u003c\/td\u003e\n\u003ctd\u003e2.35\u003c\/td\u003e\n\u003ctd\u003e2.83\u003c\/td\u003e\n\u003ctd\u003e3.85\u003c\/td\u003e\n\u003ctd\u003e4.85\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump Start Pressure (Bar)\u003c\/td\u003e\n\u003ctd\u003e1.5\u003c\/td\u003e\n\u003ctd\u003e1.8\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePump Stop Pressure (Bar)\u003c\/td\u003e\n\u003ctd\u003e2.5\u003c\/td\u003e\n\u003ctd\u003e3.0\u003c\/td\u003e\n\u003ctd\u003e3.5\u003c\/td\u003e\n\u003ctd\u003e4.0\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e4.5\u003c\/td\u003e\n\u003ctd\u003e 6\u003c\/td\u003e\n\u003ctd\u003e7.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrainage (%)\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTanks Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd colspan=\"8\"\u003e\u003cstrong\u003eDrainage Volume (Litres)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDVX03 (3 Litres)\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKS Kit\/DVX24 (24 Litres)\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003ctd\u003e7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVT 60\/DVX58 (60 Litres)\u003c\/td\u003e\n\u003ctd\u003e15\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e19\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e21\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVT 100\/DVX100 (100Litres)\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e31\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e34\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e28\u003c\/td\u003e\n\u003ctd\u003e29\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVT 300\/DVX305 (300 Litres)\u003c\/td\u003e\n\u003ctd\u003e77\u003c\/td\u003e\n\u003ctd\u003e83\u003c\/td\u003e\n\u003ctd\u003e93\u003c\/td\u003e\n\u003ctd\u003e85\u003c\/td\u003e\n\u003ctd\u003e103\u003c\/td\u003e\n\u003ctd\u003e78\u003c\/td\u003e\n\u003ctd\u003e83\u003c\/td\u003e\n\u003ctd\u003e86\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eNote that when specifying pressure systems the following is important:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCorrect tank pre-charge is critical and must be 0.15 Bar below the pump start pressure. Efficiency is greatly reduced if pre-charge is either too high or too low.\u003c\/li\u003e\n\u003cli\u003eEnsure that the difference between start and stop pressure is as high as possible as the larger the differential the greater the tank drainage capacity.\u003c\/li\u003e\n\u003cli\u003eEnsure the pump start pressure is higher than the system static pressure or else the pump will not start.\u003c\/li\u003e\n\u003cli\u003eAdjust pump stop pressure to be about 90% of the pumps closed head pressure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSelection Example\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eSystem Parameters\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePump Stop Pressure\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 4.5 Bar\u003cbr\u003e\u003cstrong\u003eStop Flow\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 11m³\/hr\u003cbr\u003e\u003cstrong\u003ePump Start Pressure\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 2.5 Bar\u003cbr\u003e\u003cstrong\u003eStart Flow\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 16m³\/hr\u003cbr\u003e\u003cstrong\u003eSystem flow at maximum cycle frequency\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 65% of Pump Stop Flow = 0.65x11=7.2m³\/hr or 7200l\/hr\u003cbr\u003e\u003cstrong\u003eMax Cycle frequency\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= 60cycles\/hr therefore required drainage volume = 7200\/60x2=60litres\u003c\/p\u003e\n\u003cp\u003eFrom table:\u003c\/p\u003e\n\u003cp\u003e100 litre tank has drainage volume of 34 litres at defined pressures.\u003cbr\u003e300 litre tank has drainage volume of 103 litres at defined pressures.\u003c\/p\u003e\n\u003cp\u003eTherefore select either 2x100litre tanks (68 litres drainage volume) or 1x300 litre tank (103 litres drainage volume).\u003c\/p\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003ctable class=\"table table-striped table-bordered table-hover table-sm\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"2\"\u003eModel\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003eVolume (Litres)\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003eMax Pressure(Bar)\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003eOutlet DN\u003c\/td\u003e\n\u003ctd colspan=\"3\"\u003eDimensions (mm)\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003eGross Wt (kg)\u003c\/td\u003e\n\u003ctd rowspan=\"2\"\u003ePacked Volume (m³)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003eH\u003c\/td\u003e\n\u003ctd\u003eH1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKS Kit\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003ctd\u003e360\u003c\/td\u003e\n\u003ctd\u003e335\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003e0.047\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVT60\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003ctd\u003e380\u003c\/td\u003e\n\u003ctd\u003e850\u003c\/td\u003e\n\u003ctd\u003e165\u003c\/td\u003e\n\u003ctd\u003e17\u003c\/td\u003e\n\u003ctd\u003e0.150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVT100\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003ctd\u003e450\u003c\/td\u003e\n\u003ctd\u003e965\u003c\/td\u003e\n\u003ctd\u003e170\u003c\/td\u003e\n\u003ctd\u003e26\u003c\/td\u003e\n\u003ctd\u003e0.240\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVT300\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e1½\" \u003c\/td\u003e\n\u003ctd\u003e630\u003c\/td\u003e\n\u003ctd\u003e1400\u003c\/td\u003e\n\u003ctd\u003e160\u003c\/td\u003e\n\u003ctd\u003e59\u003c\/td\u003e\n\u003ctd\u003e0.600\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDVX03\u003c\/td\u003e\n\u003ctd\u003e03\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e215\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e4.7\u003c\/td\u003e\n\u003ctd\u003e0.0238\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDVX24\u003c\/td\u003e\n\u003ctd\u003e24\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e1\"\u003c\/td\u003e\n\u003ctd\u003e295\u003c\/td\u003e\n\u003ctd\u003e415\u003c\/td\u003e\n\u003ctd\u003e-\u003c\/td\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e0.039\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDVX58\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e1\" \u003c\/td\u003e\n\u003ctd\u003e381\u003c\/td\u003e\n\u003ctd\u003e620\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e0.108\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDVX100\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e1\" \u003c\/td\u003e\n\u003ctd\u003e381\u003c\/td\u003e\n\u003ctd\u003e985\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e16\u003c\/td\u003e\n\u003ctd\u003e0.170 \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDVX305\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003ctd\u003e1¼\"\u003c\/td\u003e\n\u003ctd\u003e559\u003c\/td\u003e\n\u003ctd\u003e1450\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e47\u003c\/td\u003e\n\u003ctd\u003e0.462\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd colspan=\"9\"\u003e\n\u003cstrong\u003eMax Temperature Range\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- 10°C - +100°C\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTest Pressure\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e- 1.5 times the max. working pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Davis \u0026 Shirtliff Zambia","offers":[{"title":"Default Title","offer_id":51618288894239,"sku":"DVX024-10KIT","price":3620.0,"currency_code":"ZMW","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0924\/5196\/3167\/files\/dayliff-pressure-tanks2.jpg?v=1770819699","url":"https:\/\/shop.zambia.davisandshirtliff.com\/products\/dayliff-24l-10bar-diaphragm-pressure-kit","provider":"Davis \u0026 Shirtliff Zambia","version":"1.0","type":"link"}