{"product_id":"graco-255478-ratio-control-valve-assembly-for-xm-plural-component-sprayers","title":"Graco 255478 Ratio Control Valve Assembly for XM Plural-Component Sprayers","description":"\u003cp\u003eGenuine Graco 255478 is the Series B dosing (metering) valve assembly for XM plural-component sprayers. It serves as the hardener and resin dosing valve. It is rated for 7250 psi and for professional use only.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eXM sprayer dosing valve assembly, Series B\u003c\/li\u003e\n\u003cli\u003e7250 psi (50 MPa, 500 bar) maximum working pressure\u003c\/li\u003e\n\u003cli\u003eNormally open by spring; air to close, air assist to open\u003c\/li\u003e\n\u003cli\u003eAir working pressure 60 to 100 psi\u003c\/li\u003e\n\u003cli\u003eRebuild Kit 234131 and Repair Kit 234098 are sold separately\u003c\/li\u003e\n\u003cli\u003eValve 245846 is the older Xtreme Mix version and should not be installed on XM sprayers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFits These Graco Models\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eXM plural-component sprayers (hardener and resin dosing valves)\u003c\/li\u003e\n\u003cli\u003eXM PFP Plural-Component Sprayers (3A2989)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eService Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRemove plug (31) if the valve will be used on a machine with pressure transducers (Graco manual 313342).\u003c\/li\u003e\n\u003cli\u003eInspect the needle and replace it if worn (Graco manual 313342).\u003c\/li\u003e\n\u003cli\u003eWhen replacing air cylinder seals, clean all parts and lubricate the seals with lithium grease (Graco manual 313342).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhere It Is in the Graco Manual\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eItem 801, page 56 of Graco manual 3A8047 (highlighted in the photo above)\u003c\/li\u003e\n\u003cli\u003epage 1 of Graco manual \u003ca href=\"https:\/\/www.graco.com\/content\/dam\/graco\/tech_documents\/manuals\/311\/311072\/311072EN-B.pdf\" target=\"_blank\" rel=\"noopener\"\u003e311072\u003c\/a\u003e (and Accessories 234131 and 234098 Repair Kits For Metering Valves 2458)\u003c\/li\u003e\n\u003cli\u003epage 1 of Graco manual \u003ca href=\"https:\/\/www.graco.com\/content\/dam\/graco\/tech_documents\/manuals\/313\/313342\/313342EN-G.pdf\" target=\"_blank\" rel=\"noopener\"\u003e313342\u003c\/a\u003e (Dosing Valve For use with XM and Xtreme Mix™ plural-component sprayers)\u003c\/li\u003e\n\u003cli\u003epage 8 of Graco manual \u003ca href=\"https:\/\/www.graco.com\/content\/dam\/graco\/tech_documents\/manuals\/313\/313342\/313342EN-G.pdf\" target=\"_blank\" rel=\"noopener\"\u003e313342\u003c\/a\u003e (255478, Dosing Valve for XM Plural-Component Sprayers)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOther Parts on the Same Graco Parts List\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/graco-234131-metering-valve-repair-kit\"\u003eGraco 234131 Metering Valve Repair Kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/graco-fitting-elbow-5-32t-x-1-8-npt\"\u003eGraco FITTING, ELBOW 5\/32T X 1\/8 NPT\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/graco-15a835-nut-packing\"\u003eGraco 15A835 NUT  PACKING\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/graco-airlessco-15h108-label-warning-pinch-point\"\u003eGraco\/Airlessco 15H108 LABEL, warning, pinch point\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/graco-245850-socket-ball-assembly\"\u003eGraco 245850 Socket Ball Assembly\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/graco-102040-walk-behind-line-stripes-nut-lock-hex\"\u003eGraco 102040 HEX Lock Nut\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/graco-117336-o-ring\"\u003eGraco 117336 O-RING\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/graco-117370-packing-o-ring\"\u003eGraco 117370 PACKING  O-RING\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e255478\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUPC\u003c\/td\u003e\n\u003ctd\u003e00633955317642\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e8.3 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e13.8 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e11.1 IN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e11.4 LBS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Graco","offers":[{"title":"Default Title","offer_id":67828294189247,"sku":"255478","price":3090.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0019\/0880\/1571\/files\/255478.png?v=1793406513","url":"https:\/\/pittsburghsprayequip.com\/products\/graco-255478-ratio-control-valve-assembly-for-xm-plural-component-sprayers","provider":"Pittsburgh Spray","version":"1.0","type":"link"}