{"id":11275,"date":"2025-12-19T09:02:13","date_gmt":"2025-12-19T09:02:13","guid":{"rendered":"https:\/\/ykmtest.com\/?post_type=product&#038;p=11275"},"modified":"2025-12-19T09:02:14","modified_gmt":"2025-12-19T09:02:14","slug":"combined-constant-and-falling-head-apparatus","status":"publish","type":"product","link":"https:\/\/ykmtest.com\/ru\/product\/combined-constant-and-falling-head-apparatus\/","title":{"rendered":"\u041a\u043e\u043c\u0431\u0438\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0430\u043f\u043f\u0430\u0440\u0430\u0442 \u0441 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0439 \u0438 \u043f\u0430\u0434\u0430\u044e\u0449\u0435\u0439 \u0433\u043e\u043b\u043e\u0432\u043e\u0439"},"content":{"rendered":"<p class=\"p1\"><span lang=\"TR\">The falling head method\u2014used for fine-grained soils\u2014calculates the permeability coefficient based on the reduction of water level over time, while the constant head method\u2014preferred for coarse-grained, highly permeable soils\u2014provides accurate results by measuring flow rate under a constant hydraulic head. Manufactured from durable, corrosion-resistant materials, the apparatus offers long service life as well as easy installation. Precision measurement tubes and a modular design provide flexibility, ease of use, and dependable performance.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p class=\"p1\"><span lang=\"TR\">Combined Constant and Falling Head Apparatus is designed to determine the coefficient of permeability of soil specimens in laboratory conditions. The system offers two testing methods in a single unit, allowing reliable evaluation of both low-permeability and high-permeability soils.<\/span><\/p>","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[128,119],"product_tag":[],"class_list":{"0":"post-11275","1":"product","2":"type-product","3":"status-publish","5":"product_cat-soil-permeability","6":"product_cat-soil-lab","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v26.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Combined Constant and Falling Head Apparatus - YKM TEST<\/title>\n<meta name=\"description\" content=\"Reliable Combined Constant and Falling Head Apparatus for precise soil permeability testing. Suitable for both low-permeability (fine-grained) and high-permeability (coarse-grained) soils, providing accurate results for hydraulic conductivity.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/ykmtest.com\/ru\/product\/combined-constant-and-falling-head-apparatus\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Combined Constant and Falling Head Apparatus\" \/>\n<meta property=\"og:description\" content=\"Reliable Combined Constant and Falling Head Apparatus for precise soil permeability testing. Suitable for both low-permeability (fine-grained) and high-permeability (coarse-grained) soils, providing accurate results for hydraulic conductivity.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ykmtest.com\/ru\/product\/combined-constant-and-falling-head-apparatus\/\" \/>\n<meta property=\"og:site_name\" content=\"YKM TEST\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-19T09:02:14+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0426\u0435\u043d\u0430\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c\" \/>\n\t<meta name=\"twitter:data2\" content=\"\u0412 \u043d\u0430\u043b\u0438\u0447\u0438\u0438\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/\",\"url\":\"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/\",\"name\":\"Combined Constant and Falling Head Apparatus - YKM TEST\",\"isPartOf\":{\"@id\":\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/#website\"},\"datePublished\":\"2025-12-19T09:02:13+00:00\",\"dateModified\":\"2025-12-19T09:02:14+00:00\",\"description\":\"Reliable Combined Constant and Falling Head Apparatus for precise soil permeability testing. Suitable for both low-permeability (fine-grained) and high-permeability (coarse-grained) soils, providing accurate results for hydraulic conductivity.\",\"breadcrumb\":{\"@id\":\"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#breadcrumb\"},\"inLanguage\":\"ru-RU\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u0422\u043e\u0432\u0430\u0440\u044b\",\"item\":\"https:\/\/ykmtest.com\/ru\/shop\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Combined Constant and Falling Head Apparatus\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/#website\",\"url\":\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/\",\"name\":\"YKM TEST\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ru-RU\"},{\"@type\":[\"Organization\",\"Place\"],\"@id\":\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/#organization\",\"name\":\"YKM TEST\",\"url\":\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/\",\"logo\":{\"@id\":\"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#local-main-organization-logo\"},\"image\":{\"@id\":\"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#local-main-organization-logo\"},\"telephone\":[],\"openingHoursSpecification\":[{\"@type\":\"OpeningHoursSpecification\",\"dayOfWeek\":[\"Monday\",\"Tuesday\",\"Wednesday\",\"Thursday\",\"Friday\",\"Saturday\",\"Sunday\"],\"opens\":\"09:00\",\"closes\":\"17:00\"}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ru-RU\",\"@id\":\"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#local-main-organization-logo\",\"url\":\"https:\/\/ykmtest.com\/wp-content\/uploads\/2025\/10\/Asset-2@2x-8.png\",\"contentUrl\":\"https:\/\/ykmtest.com\/wp-content\/uploads\/2025\/10\/Asset-2@2x-8.png\",\"width\":1550,\"height\":323,\"caption\":\"YKM TEST\"}]}<\/script>\n<meta property=\"product:price:currency\" content=\"USD\" \/>\n<meta property=\"og:availability\" content=\"instock\" \/>\n<meta property=\"product:availability\" content=\"instock\" \/>\n<meta property=\"product:condition\" content=\"new\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Combined Constant and Falling Head Apparatus - YKM TEST","description":"Reliable Combined Constant and Falling Head Apparatus for precise soil permeability testing. Suitable for both low-permeability (fine-grained) and high-permeability (coarse-grained) soils, providing accurate results for hydraulic conductivity.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/ykmtest.com\/ru\/product\/combined-constant-and-falling-head-apparatus\/","og_locale":"ru_RU","og_type":"article","og_title":"Combined Constant and Falling Head Apparatus","og_description":"Reliable Combined Constant and Falling Head Apparatus for precise soil permeability testing. Suitable for both low-permeability (fine-grained) and high-permeability (coarse-grained) soils, providing accurate results for hydraulic conductivity.","og_url":"https:\/\/ykmtest.com\/ru\/product\/combined-constant-and-falling-head-apparatus\/","og_site_name":"YKM TEST","article_modified_time":"2025-12-19T09:02:14+00:00","twitter_card":"summary_large_image","twitter_misc":{"\u0426\u0435\u043d\u0430":"","\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c":"\u0412 \u043d\u0430\u043b\u0438\u0447\u0438\u0438"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/","url":"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/","name":"Combined Constant and Falling Head Apparatus - YKM TEST","isPartOf":{"@id":"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/#website"},"datePublished":"2025-12-19T09:02:13+00:00","dateModified":"2025-12-19T09:02:14+00:00","description":"Reliable Combined Constant and Falling Head Apparatus for precise soil permeability testing. Suitable for both low-permeability (fine-grained) and high-permeability (coarse-grained) soils, providing accurate results for hydraulic conductivity.","breadcrumb":{"@id":"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#breadcrumb"},"inLanguage":"ru-RU","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/"},{"@type":"ListItem","position":2,"name":"\u0422\u043e\u0432\u0430\u0440\u044b","item":"https:\/\/ykmtest.com\/ru\/shop\/"},{"@type":"ListItem","position":3,"name":"Combined Constant and Falling Head Apparatus"}]},{"@type":"WebSite","@id":"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/#website","url":"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/","name":"YKM TEST","description":"","publisher":{"@id":"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ru-RU"},{"@type":["Organization","Place"],"@id":"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/#organization","name":"YKM TEST","url":"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/","logo":{"@id":"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#local-main-organization-logo"},"image":{"@id":"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#local-main-organization-logo"},"telephone":[],"openingHoursSpecification":[{"@type":"OpeningHoursSpecification","dayOfWeek":["Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday"],"opens":"09:00","closes":"17:00"}]},{"@type":"ImageObject","inLanguage":"ru-RU","@id":"https:\/\/ykmtest.com\/product\/combined-constant-and-falling-head-apparatus\/#local-main-organization-logo","url":"https:\/\/ykmtest.com\/wp-content\/uploads\/2025\/10\/Asset-2@2x-8.png","contentUrl":"https:\/\/ykmtest.com\/wp-content\/uploads\/2025\/10\/Asset-2@2x-8.png","width":1550,"height":323,"caption":"YKM TEST"}]},"product_price_currency":"USD","og_availability":"instock","product_availability":"instock","product_condition":"new"},"_links":{"self":[{"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/product\/11275","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/product\/11275\/revisions"}],"predecessor-version":[{"id":11276,"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/product\/11275\/revisions\/11276"}],"wp:attachment":[{"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/media?parent=11275"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/product_brand?post=11275"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/product_cat?post=11275"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ykmtest.com\/ru\/wp-json\/wp\/v2\/product_tag?post=11275"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}