{"product_id":"dramm-adjustable-pressure-regulator-3-4-in","title":"Dramm - Adjustable Pressure Regulator 3\/4 in","description":"\u003ch2\u003eAdjustable Pressure Regulator 3\/4 in\u003c\/h2\u003e\u003cp\u003eThe colour in the option name is the setting spring fitted inside the regulator, and each spring is an adjustable band rather than a fixed setting - there is a screw on the cover and the regulator holds whatever point you set it to within that band. Yellow covers 7 to 18 psi, white 12 to 36 psi, red 29 to 58 psi and black 50 to 87 psi, all on the same 3\/4 in body. The second choice is the body: the standard body passes 0.9 to 22 gpm, and the low-flow body runs from 0.04 to 13 gpm. Being direct acting, it responds immediately to what happens downstream and holds constant downstream pressure as demand changes.\u003c\/p\u003e\u003cp\u003ePick in two steps. First the spring: find the outlet pressure you want and choose the colour whose band contains it - yellow 7 to 18 psi, white 12 to 36 psi, red 29 to 58 psi, black 50 to 87 psi - then dial the exact figure in on the cover screw. The bands overlap on purpose, so if your target sits in an overlap (white and red both reach 29 to 36 psi, red and black both reach 50 to 58 psi) take the spring that puts your setting nearer the middle of its band rather than at an end. Then the body, chosen on flow. The standard body covers 0.9 to 22 gpm and is the zone regulator. The low-flow body starts at 0.04 gpm - about what four or five 2 lph emitters draw - because it carries a throttling plug and elastomeric seal that keeps it regulating under near-zero demand, so it is the one for a single bench, a short basket line or one dripper station where a standard body would spend its life below its minimum flow. You give up the top end for that: 13 gpm rather than 22.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePressure band (setting spring colour)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYellow 7-18 psi; White 12-36 psi; Red 29-58 psi; Black 50-87 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAdjustment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdjustable anywhere within the band of the spring fitted, set on the cover screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFlow range by body\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard body 0.9 to 22 gpm; low-flow body 0.04 to 13 gpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWhat the low-flow body adds\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA throttling plug and elastomeric seal that keep it regulating under near-zero demand, from 0.04 gpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3\/4 in (DN20)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCv\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.6 on the standard body; 4.2 on the low-flow body\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDirect acting - immediate response, constant downstream pressure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterials\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlass-filled nylon body, cover and actuator; nylon-reinforced nitrile diaphragm; stainless steel spring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 7\/16 in long x 3 15\/16 in high x 1 3\/4 in wide\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOrientation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCan be installed at any orientation, and inspected in line\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSizing the supply\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAdd the pressure loss across the regulator at your flow to your set point to get the minimum supply pressure needed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eConfigurations\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePressure Range\u003c\/th\u003e\n\u003cth\u003eFlow Range\u003c\/th\u003e\n\u003cth\u003ePart number\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack - 50 to 87 psi\u003c\/td\u003e\n\u003ctd\u003eStandard flow - 0.9 to 22 gpm\u003c\/td\u003e\n\u003ctd\u003ePRV-075-P-BK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRed - 29 to 58 psi\u003c\/td\u003e\n\u003ctd\u003eStandard flow - 0.9 to 22 gpm\u003c\/td\u003e\n\u003ctd\u003ePRV-075-P-RD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhite - 12 to 36 psi\u003c\/td\u003e\n\u003ctd\u003eStandard flow - 0.9 to 22 gpm\u003c\/td\u003e\n\u003ctd\u003ePRV-075-P-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYellow - 7 to 18 psi\u003c\/td\u003e\n\u003ctd\u003eStandard flow - 0.9 to 22 gpm\u003c\/td\u003e\n\u003ctd\u003ePRV-075-P-YL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack - 50 to 87 psi\u003c\/td\u003e\n\u003ctd\u003eLow flow - 0.04 to 13 gpm\u003c\/td\u003e\n\u003ctd\u003ePRV-075-P05-BK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRed - 29 to 58 psi\u003c\/td\u003e\n\u003ctd\u003eLow flow - 0.04 to 13 gpm\u003c\/td\u003e\n\u003ctd\u003ePRV-075-P05-RD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhite - 12 to 36 psi\u003c\/td\u003e\n\u003ctd\u003eLow flow - 0.04 to 13 gpm\u003c\/td\u003e\n\u003ctd\u003ePRV-075-P05-WH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYellow - 7 to 18 psi\u003c\/td\u003e\n\u003ctd\u003eLow flow - 0.04 to 13 gpm\u003c\/td\u003e\n\u003ctd\u003ePRV-075-P05-YL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eColour-coded setting springs: yellow 7-18 psi, white 12-36 psi, red 29-58 psi, black 50-87 psi\u003c\/li\u003e\n\u003cli\u003eAdjustable within its band on a cover screw, so the set point moves with the season and the crop stage instead of being fixed in manufacture\u003c\/li\u003e\n\u003cli\u003eDirect acting, holding constant downstream pressure with immediate response to demand\u003c\/li\u003e\n\u003cli\u003eLow-flow body regulates from 0.04 gpm, which is a handful of emitters rather than a whole zone\u003c\/li\u003e\n\u003cli\u003eStandard body carries a full zone at up to 22 gpm\u003c\/li\u003e\n\u003cli\u003eGlass-filled nylon body with a stainless steel spring and a nylon-reinforced diaphragm\u003c\/li\u003e\n\u003cli\u003eInstalls at any orientation and can be inspected in line without unplumbing it\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSetting different pressures on different zones off one manifold as crops and stages change\u003c\/li\u003e\n\u003cli\u003eNon-compensating drip line and drip tape flow fixation\u003c\/li\u003e\n\u003cli\u003eLateral final burst protection\u003c\/li\u003e\n\u003cli\u003ePressure reduction for marginal plots and low-lying blocks\u003c\/li\u003e\n\u003cli\u003eSingle sprinkler or irrigation machine flow control\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eFit a screen filter upstream, set and check the outlet pressure with the gauge test kit, and remember Dramm PCAS emitters want 15 to 50 psi at the dripper and about 25 psi at the manifold - white spring territory; if you want a fixed setting with nothing to adjust, the preset regulator listing covers 10 to 40 psi in three flow classes.\u003c\/em\u003e\u003c\/p\u003e","brand":"Dramm","offers":[{"title":"Black - 50 to 87 psi \/ Standard flow - 0.9 to 22 gpm","offer_id":52800299696439,"sku":"PRV-075-P-BK","price":38.88,"currency_code":"USD","in_stock":true},{"title":"Red - 29 to 58 psi \/ Standard flow - 0.9 to 22 gpm","offer_id":52800299729207,"sku":"PRV-075-P-RD","price":38.88,"currency_code":"USD","in_stock":true},{"title":"White - 12 to 36 psi \/ Standard flow - 0.9 to 22 gpm","offer_id":52800299761975,"sku":"PRV-075-P-WH","price":38.88,"currency_code":"USD","in_stock":true},{"title":"Yellow - 7 to 18 psi \/ Standard flow - 0.9 to 22 gpm","offer_id":52800299794743,"sku":"PRV-075-P-YL","price":38.88,"currency_code":"USD","in_stock":true},{"title":"Black - 50 to 87 psi \/ Low flow - 0.04 to 13 gpm","offer_id":52800299827511,"sku":"PRV-075-P05-BK","price":46.16,"currency_code":"USD","in_stock":true},{"title":"Red - 29 to 58 psi \/ Low flow - 0.04 to 13 gpm","offer_id":52800299860279,"sku":"PRV-075-P05-RD","price":46.16,"currency_code":"USD","in_stock":true},{"title":"White - 12 to 36 psi \/ Low flow - 0.04 to 13 gpm","offer_id":52800299893047,"sku":"PRV-075-P05-WH","price":46.16,"currency_code":"USD","in_stock":true},{"title":"Yellow - 7 to 18 psi \/ Low flow - 0.04 to 13 gpm","offer_id":52800299925815,"sku":"PRV-075-P05-YL","price":46.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0674\/0341\/5863\/files\/dramm-pressure-regulator-white-cap-standard-flow.jpg?v=1786145559","url":"https:\/\/www.blacklabelsupply.io\/products\/dramm-adjustable-pressure-regulator-3-4-in","provider":"BLACK LABEL","version":"1.0","type":"link"}