[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-505420-105":59,"doc-detail-505420-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","r-290-pressure-temperature-chart-product-bulletin","R-290 - Pressure-Temperature Chart - Product Bulletin","","Product bulletin providing a pressure-temperature chart for National R-290 propane, listing pressure (psig) across a temperature range and referencing NIST Refprop 8.0 values. Includes product characteristics such as refrigerant grade propane, AHRI Standard 700 compliance, non-odorized formulation, and 14 oz by weight charge. Provides installation and valve dispensing guidance, emphasizes extreme flammability, and outlines safe handling requirements. Includes an FAQ-style section covering EPA certification needs, servicing tools, leak checking, recovery/venting exemptions, and approval limits for retail food equipment and vending machines.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/r-290-pressure-temperature-chart-product-bulletin/505420/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/r-290-pressure-temperature-chart-product-bulletin/505420.png","ImageObject",300,407,{"name":92,"@type":93},"dbqoiu","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-10","2026-10-04",true,{"@type":102,"interactionType":103,"userInteractionCount":56},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What does the pressure-temperature chart provide for R-290?","Question",{"text":112,"@type":113},"It lists the National R-290 propane pressure (psig) corresponding to different temperature values across the chart range.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Do technicians need EPA certification to purchase or service R-290?",{"text":117,"@type":113},"The bulletin states EPA has exempted R-290 from sales restriction and does not require technician certification for exempt refrigerants like R-290.",{"name":119,"@type":110,"acceptedAnswer":120},"How should an R-290 system be leak checked?",{"text":121,"@type":113},"Leak checking should be done like an HFC system, but halide leak detectors should not be used and electronic leak detectors must be specifically designed for combustible gas; bubble solution or an ultrasonic detector can also be used.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},505420,1791519128,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":56,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":14,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":24,"preview_page_count":4},3985747862462,"https://ap-avatar.wpscdn.com/davatar_3d24733baf745e90a7e4bdd5f77d97b2","Product Bulletin  \nPRESSURE-TEMPERATURE CHART  \n\n| TEMP (˚F) | \u003Cbr>National R-290 Propane\u003Cbr>Pressure (psig)\u003Cbr>TEMP (˚F)\u003Cbr>Pressure (psig) |  |  |\n| --- | --- | --- | --- |\n| -40 | 1.4 | 65 | 101.4 |\n| -35 | 3.4 | 70 | 110.2 |\n| -30 | 5.7 | 75 | 119.5 |\n| -25 | 8.1 | 80 | 129.3 |\n| -20 | 10.7 | 85 | 139.7 |\n| -15 | 13.6 | 90 | 150.5 |\n| -10 | 16.7 | 95 | 161.9 |\n| -5 | 20.1 | 100 | 173.9 |\n| 0 | 23.7 | 105 | 186.5 |\n| 5 | 27.6 | 110 | 199.6 |\n| 10 | 31.8 | 115 | 213.4 |\n| 15 | 36.3 | 120 | 227.8 |\n| 20 | 41.1 | 125 | 242.9 |\n| 25 | 46.3 | 130 | 258.7 |\n| 30 | 51.8 | 135 | 275.1 |\n| 35 | 57.7 | 140 | 292.3 |\n| 40 | 63.9 | 145 | 310.2 |\n| 45 | 70.6 | 150 | 328.9 |\n| 50 | 77.6 | 155 | 348.4 |\n| 55 | 85.1 | 160 | 368.7 |\n| 60 | 93.0 |  |  |\n\nValues from NIST Refprop 8.0  \nR-290  \nu Refrigerant Grade Propane  \nu Meets AHRI Standard 700 specifications  \nu Non-odorized  \nu Contains 14 oz. by weight  \nu Valve: Dispense using screw on valve tap – Part \\# KFCA (1/4”SAE flare)  \nPRODUCT SAFETY:  \nu Extremely flammable  \nu Requires adherence to proper safety procedures when storing, handling, transporting and using this product  \nu Use only in accordance with equipment manufacturer’s instructions  \nu Use only tools and equipment certified for use in hazardous areas  \nu Store and transport in upright position  \nu Refer to Safety Data Sheet (SDS)  \nNational Refrigerants, Inc.  \n11401 Roosevelt Boulevard Philadelphia, PA 19154  \nTel: 800.262.0012  \nfax: 215.698.7466  \n[web: www.refrigerants.com](web: www.refrigerants.com)  \ne-mail: [info@refrigerants.com](info@refrigerants.com)  \nTHINGS TO KNOW ABOUT USING R-290:  \nWhat type refrigerant is R-290?  \nR-290 is a hydrocarbon refrigerant that is highly flammable.  \nDo you have to be EPA certified to purchase R-290?  \nNo. EPA has exempted R-290 from the sales restriction.  \nDo you have to be certified to service, repair or maintain an approved hydrocarbon containing system?  \nNo. EPA does not require technician certification for exempt refrigerants, like R-290 .  \nAre there any specialized tools needed to service an R-290 refrigeration system?  \nYes. A combustible gas meter / R-290 electronic leak detector (must be designed for combustible gases) A safety placard advising of no smoking or open flames. Standard refrigeration tools are still needed. Ex. Pinch off tool, nitrogen, vacuum pump, micron gauge, torches, soap bubbles, manifold set, and tube cutter. R-290 is highly flammable so you must observe caution and proper safety practices when servicing R-290 systems so make sure tools are spark resistant as appropriate.  \nHow do I leak check an R-290 system?  \nBasically the same the way you do an HFC but you cannot use a halide leak detector and electronic leak detectors must be specifically designed for combustible gas. A bubble solution or an ultrasonic leak detector can also be used.  \nDo you have to recover R-290 before opening an approved hydrocarbon containing system?  \nNo. EPA has exempted R-290 from the recovery requirement due to its limited charge size (5 oz. or less) so it can legally be vented to the atmosphere. NOTE: Follow safe procedures to prevent exposure to or ignition ofthe R-290 .  \nIs R-290 approved for use in stand-alone retail food equipment?  \nYes but for NEW equipment only. EPA has limited the charge size for this application to a maximum of 150 grams (~5 oz.) . Retrofitting is prohibited.  \nIs R-290 approved for use in vending machines?  \nYes but for NEW equipment only. EPA has limited the charge size for this application to a maximum of 150 grams (~5 oz.) . Retrofitting is prohibited.  \nCan I use any type of propane in an EPA approved application?  \nNo. The refrigerant must be Refrigerant Grade and meet AHRI Standard 700 specifications. This is important in order to guarantee the minimum purity and limit contaminants such as moisture and non-condensable gas so that the equipment performs as designed.  \nDoes Refrigerant Grade propane contain an odorant like other propane","cbCaidf0wX5bdhv8","https://ap.wps.com/l/cbCaidf0wX5bdhv8","pdf",1268361,"English","# Pressure-Temperature Chart\n## Data Source\n# Product Information\n## Refrigerant Characteristics\n## Valve and Dispensing\n# Product Safety\n## Flammability and Handling\n# Things to Know About Using R-290\n## Certification and Servicing Requirements\n## Tools for Service and Leak Checking\n## Recovery, Venting, and Equipment Approval Limits","[{\"question\":\"What does the pressure-temperature chart provide for R-290?\",\"answer\":\"It lists the National R-290 propane pressure (psig) corresponding to different temperature values across the chart range.\"},{\"question\":\"Do technicians need EPA certification to purchase or service R-290?\",\"answer\":\"The bulletin states EPA has exempted R-290 from sales restriction and does not require technician certification for exempt refrigerants like R-290.\"},{\"question\":\"How should an R-290 system be leak checked?\",\"answer\":\"Leak checking should be done like an HFC system, but halide leak detectors should not be used and electronic leak detectors must be specifically designed for combustible gas; bubble solution or an ultrasonic detector can also be used.\"}]","R-290 - Pressure-Temperature Chart - Product Bulletin | PDF",1791147993]