{"id":3047,"date":"2020-06-22T09:11:27","date_gmt":"2020-06-22T07:11:27","guid":{"rendered":"https:\/\/dev.ep-e.com\/products\/rpd-referenzgaszaehler\/"},"modified":"2025-11-25T10:41:17","modified_gmt":"2025-11-25T09:41:17","slug":"rpd-reference-gas-meters","status":"publish","type":"products","link":"https:\/\/www.ep-e.com\/en\/products\/rpd-reference-gas-meters\/","title":{"rendered":"RPD Reference gas meters"},"content":{"rendered":"<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">The gold standard for low flow measurement<\/h3>\n<\/div><\/div><\/div>\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<p class=\"wp-block-paragraph\">The rotary piston gas meters GM16 meet the highest demands on the reliable and precise reference measurement of low flow up to 0.01 m\u00b3\/h. You achieve an excellent measuring accuracy of 0.5% MV + 0.005% EV and are suitable for operation up to 6 bar overpressure. The new generation of reference gas meters is not only suitable for air, but also for hydrogen, natural gas and other non-flammable and non-aggressive gases. With the continuous, absolutely pulsation-free and highly precise flow measurement, the reference gas meters from Ehrler Pr\u00fcftechnik are the gold standard in the field of low flow measurement &#8211; also for <strong>hydrogen<\/strong>.<\/p>\n<\/div><\/div><\/div>\n\n\n<div id=\"slider-block_ab6a4327a3755c1418cba35e7c851c46\"\n    class=\"swiper block-slider slider align\"\n    role=\"region\" aria-label=\"Bild-Slider\">\n\n    <div class=\"swiper-wrapper my-2\">\n                                    <div class=\"swiper-slide text-center\">\n                                                <img\n                                class=\"img-fluid\"\n                                src=\"https:\/\/www.ep-e.com\/wp-content\/uploads\/2025\/11\/GM16.avif\"\n                                alt=\"\"\n                                width=\"2048\"                                 height=\"1097\"                                 loading=\"lazy\"\n                                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class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Technical data<\/h3>\n<\/div><\/div><\/div>\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\"><\/div><\/div><\/div>\n\n<div class=\"d-flex justify-content-center table-responsive sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><\/div>\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h4 class=\"wp-block-heading\">Gas meter GM16, 2 HF<\/h4>\n<\/div><\/div><\/div>\n\n<div class=\"d-flex justify-content-center table-responsive sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\">\n<figure class=\"wp-block-table\"><table><tbody><tr><td>Qmin.<\/td><td>0.01 m\u00b3\/h*<\/td><\/tr><tr><td>Qmax.<\/td><td>16 m\u00b3\/h<\/td><\/tr><tr><td>Measurement range<\/td><td>&gt; 1:1000<\/td><\/tr><tr><td>Measurement accuracy<br>(@atmospheric conditions, air)<\/td><td>0.5 % MV + 0.005 % EV**<\/td><\/tr><tr><td>Pulse value<\/td><td>153.000 imp\/m\u00b3<\/td><\/tr><tr><td>HF pulse generator<\/td><td>2 piece<\/td><\/tr><tr><td>Medium<\/td><td>air, nitrogen, natural gas, helium, hydrogen, other non-flammable and non-aggressive gases<\/td><\/tr><tr><td>Connection<\/td><td>DIN flange DN20 PN10<\/td><\/tr><tr><td>Installation length<\/td><td>130 mm<\/td><\/tr><tr><td>Operating pressure<\/td><td>up to 6 bar overpressure***<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\"><em>*Depending on operating conditions and measurement time<br>**MV = from the measured value, EV = from the end value<br>***Versions for higher operating pressure on request<\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Measuring principle<\/h3>\n<\/div><\/div><\/div>\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<p class=\"wp-block-paragraph\">The reference gas meters GM16 operate according to the direct displacement principle (RPD -rotary positive displacement), in which two counter-rotating pistons convey a fixed volume from the inlet to the outlet of the gas meter with each full revolution. Due to the specially shaped pistons, an absolutely pulsation-free continuous operation can be realized (patent pending).<\/p>\n<\/div><\/div><\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Applications<\/h3>\n<\/div><\/div><\/div>\n\n<div class=\"cnt_row\"><div class=\"cnt_col block_list sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<ul class=\"wp-block-list\">\n<li>Industrial applications<\/li>\n\n\n\n<li>Calibration &amp; transfer standards<\/li>\n\n\n\n<li>Measurement sections for test benches<\/li>\n\n\n\n<li>Flow measurement of hydrogen<\/li>\n<\/ul>\n<\/div><\/div><\/div>\n\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n<div class=\"cnt_row\"><div class=\"cnt_col sal\" data-sal=\"slide-up\" data-sal-easing=\"ease-in-out\"><div class=\"container-narrow\">\n<h3 class=\"wp-block-heading\">Are you interested in further details?<\/h3>\n<\/div><\/div><\/div>\n\n    <div class=\"cnt_row align\">\n        <div class=\"cnt_col\">\n                            <div class=\"btn_cta shadow\">\n                    <a class=\"f_btn btn\" href=\"https:\/\/www.ep-e.com\/wp-content\/uploads\/2025\/06\/RPD-reference-gas-meter_183530_V05-2025.pdf\" target=\"\" rel=\"\">\n                        Brochure RPD Reference gas meter                    <\/a>\n                <\/div>\n                    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Reliable and accurate reference<br \/>\ngas flow measurement down to 0.01 m\u00b3\/h. Hydrogen approved.<\/p>\n","protected":false},"featured_media":6493,"template":"","product-type":[],"class_list":["post-3047","products","type-products","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>RPD Reference gas meters - EP<\/title>\n<meta name=\"description\" content=\"The gas meters by EP meet the highest requirements for reliable reference measurement of low flows up to 0.01 m\u00b3\/h and are hydrogen approved.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ep-e.com\/en\/products\/rpd-reference-gas-meters\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"RPD Reference gas meters - EP\" \/>\n<meta property=\"og:description\" content=\"The gas meters by EP meet the highest requirements for reliable reference measurement of low flows up to 0.01 m\u00b3\/h and are hydrogen approved.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.ep-e.com\/en\/products\/rpd-reference-gas-meters\/\" \/>\n<meta property=\"og:site_name\" content=\"EP\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-25T09:41:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.ep-e.com\/wp-content\/uploads\/2025\/06\/GM16.avif\" \/>\n\t<meta property=\"og:image:width\" content=\"4272\" \/>\n\t<meta property=\"og:image:height\" content=\"2848\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.ep-e.com\\\/en\\\/products\\\/rpd-reference-gas-meters\\\/\",\"url\":\"https:\\\/\\\/www.ep-e.com\\\/en\\\/products\\\/rpd-reference-gas-meters\\\/\",\"name\":\"RPD Reference gas meters - 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