{"id":46940,"date":"2025-06-16T19:11:00","date_gmt":"2025-06-16T19:11:00","guid":{"rendered":"https:\/\/ncservo.com\/?post_type=product&#038;p=46940"},"modified":"2026-03-25T17:25:42","modified_gmt":"2026-03-25T17:25:42","slug":"moog-g631-3806b-5","status":"publish","type":"product","link":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/","title":{"rendered":"MOOG G631-3806B-5"},"content":{"rendered":"<div id=\"wb-what-we-do\" class=\"wordbank-container\">\n<h2>How We Repair Your Unit<\/h2>\n<p>We specialize in the overhaul of your MOOG G631-3806B-5, including the replacement of all necessary seals and worn components.<\/p>\n<\/div>\n<div id=\"wb-overview\" class=\"wordbank-container\">\n<h2>Valve Overview<\/h2>\n<p>The MOOG G631-3806B-5 is one of many models we routinely service. Our process includes disassembly, cleaning, and reassembly using reliable components.<\/p>\n<\/div>\n<div id=\"wb-faq\" class=\"wordbank-container\">\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-accordion\">\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-0\">Should I degrease or rinse the unit first?<\/button><\/h3>\n<div id=\"faq-content-0\" class=\"faq-content\">\n<p>You can send it as-is. We handle all cleaning and preparation as part of our standard process.<\/p>\n<\/div><\/div>\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-1\">Can this unit be repaired even if I don&#8217;t know the full model number?<\/button><\/h3>\n<div id=\"faq-content-1\" class=\"faq-content\">\n<p>Yes. Our technicians can often identify units based on photos, dimensions, or manufacturer markings. Send a photo before shipping to speed up intake.<\/p>\n<\/div><\/div>\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-2\">Can I request rush service on a repair?<\/button><\/h3>\n<div id=\"faq-content-2\" class=\"faq-content\">\n<p>Expedited options are available depending on current scheduling. Contact us to discuss your timeline.<\/p>\n<\/div><\/div>\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-3\">What&#8217;s your guarantee on repaired units?<\/button><\/h3>\n<div id=\"faq-content-3\" class=\"faq-content\">\n<p>Yes, a 12-month warranty on parts and labor is standard on all repairs. Details are provided with your service report.<\/p>\n<\/div><\/div>\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-4\">Is it better to refurbish or buy a new unit?<\/button><\/h3>\n<div id=\"faq-content-4\" class=\"faq-content\">\n<p>In most cases, repair costs less than replacement, especially for legacy or OEM-specific models. We evaluate every unit and let you know what makes sense.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n<\/div>\n<div id=\"wb-why-us\" class=\"wordbank-container\">\n<h2>About Our Shop<\/h2>\n<p>NC Servo operates independently, so we&#8217;re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.<\/p>\n<p>Specializing in MOOG G631-3806B-5 servo valve technology for over five decades<\/p>\n<\/div>\n<div id=\"wb-process\" class=\"wordbank-container\">\n<h2>Rebuild Steps<\/h2>\n<p>Once a valve arrives, we tear it down fully, examine key surfaces, and replace worn or damaged parts using components we stock in-house, cutting out OEM lead times.<\/p>\n<ul>\n<li>Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.<\/li>\n<li>Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.<\/li>\n<li>In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.<\/li>\n<li>Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.<\/li>\n<\/ul>\n<\/div>\n<div id=\"wb-testing\" class=\"wordbank-container\">\n<h2>Testing and Bench Verification<\/h2>\n<p>With our 13-stand test facility and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our functional testing verifies proper functionality.<\/p>\n<\/div>\n<div id=\"wb-industry-focus\" class=\"wordbank-container new-dynamic-section\">\n<h2>Common Applications<\/h2>\n<p>Our professional repair services for the MOOG G631-3806B-5 are trusted across various sectors including Steel &#038; Metals, Construction, and Power Generation. We understand the unique demands of valves in these environments.<\/p>\n<\/div>\n<div id=\"wb-inventory\" class=\"wordbank-container new-dynamic-section\">\n<h2>In-House Inventory for MOOG G631-3806B-5<\/h2>\n<p>With an extensive stock of 17,000+ valves, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.<\/p>\n<\/div>\n<div id=\"wb-tips\" class=\"wordbank-container\">\n<h2>Maintenance Tips<\/h2>\n<ul>\n<li>Document all maintenance activities to track performance trends over time.<\/li>\n<li>Schedule preventive maintenance intervals based on duty cycle, not just calendar time.<\/li>\n<li>Store spare MOOG G631-3806B-5 valves in a clean, dry environment to prevent corrosion and contamination.<\/li>\n<\/ul>\n<\/div>\n<div id=\"wb-cta\" class=\"wordbank-container\">\n<div class=\"cta-section\">\n<h2>Let Us Repair Your MOOG G631-3806B-5<\/h2>\n<p>Request pricing, availability, and turnaround for your MOOG G631-3806B-5. NC Servo provides experienced repair with a 1-year warranty. Contact us to request your repair.<\/p>\n<div class=\"cta-buttons\"><a href=\"https:\/\/ncservo.com\/.wp-toolkit_m\/contact-us\/\" class=\"button quote-button\">Request a Quote<\/a> <a href=\"https:\/\/ncservo.com\/.wp-toolkit_m\/moog\/\" class=\"button brand-button\">View All MOOG Products<\/a> <a href=\"https:\/\/ncservo.com\/.wp-toolkit_m\/brand\/moog\/\" class=\"button inventory-button\">Shop MOOG Inventory<\/a><\/div>\n<\/div>\n<\/div>\n<div class=\"disclaimer-section\">\n<p class=\"disclaimer\"><strong>NC Servo<\/strong> is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by MOOG or any original equipment manufacturer (OEM), nor do we claim to be a MOOG service center. All brand names, trademarks, model numbers, and part numbers referenced on this page are the property of their respective owners and are used solely for identification and compatibility purposes.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<div id=\"wb-short-description\" class=\"short-description-container\">\n<p>A broken MOOG G631-3806B-5 valve can disrupt your entire system. We provide fast repairs and stock units for exchange to reduce your wait time.<\/p>\n<\/div>\n","protected":false},"featured_media":57817,"template":"","meta":[],"product_brand":[494],"product_cat":[2425],"product_tag":[152],"class_list":{"0":"post-46940","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-moog","7":"product_cat-moog-hydraulic-valves","8":"product_tag-valve","10":"first","11":"outofstock","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MOOG G631-3806B-5 Proportional Valve Repair<\/title>\n<meta name=\"description\" content=\"NC Servo repairs your warrantied, durable servo valve repair for your MOOG G631-3806B-5. 50+ years of hydraulic repair experience. Schedule now!\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MOOG G631-3806B-5 Proportional Valve Repair\" \/>\n<meta property=\"og:description\" content=\"NC Servo repairs your warrantied, durable servo valve repair for your MOOG G631-3806B-5. 50+ years of hydraulic repair experience. Schedule now!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/\" \/>\n<meta property=\"og:site_name\" content=\"Nc Servo Technology\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/NCServo\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-25T17:25:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-content\/uploads\/2026\/03\/moog-g631-3800b-servo-valve-p60jdgm4vbr-image-1.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1110\" \/>\n\t<meta property=\"og:image:height\" content=\"1024\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@NcServo\" \/>\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:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/product\\\/moog-g631-3806b-5\\\/\",\"url\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/product\\\/moog-g631-3806b-5\\\/\",\"name\":\"MOOG G631-3806B-5 Proportional Valve Repair\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/product\\\/moog-g631-3806b-5\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/product\\\/moog-g631-3806b-5\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/moog-g631-3800b-servo-valve-p60jdgm4vbr-image-1.webp\",\"datePublished\":\"2025-06-16T19:11:00+00:00\",\"dateModified\":\"2026-03-25T17:25:42+00:00\",\"description\":\"NC Servo repairs your warrantied, durable servo valve repair for your MOOG G631-3806B-5. 50+ years of hydraulic repair experience. Schedule now!\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/product\\\/moog-g631-3806b-5\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/product\\\/moog-g631-3806b-5\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/product\\\/moog-g631-3806b-5\\\/#primaryimage\",\"url\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/moog-g631-3800b-servo-valve-p60jdgm4vbr-image-1.webp\",\"contentUrl\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/moog-g631-3800b-servo-valve-p60jdgm4vbr-image-1.webp\",\"width\":1110,\"height\":1024},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/product\\\/moog-g631-3806b-5\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Inventory\",\"item\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/inventory\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"MOOG G631-3806B-5 Valve\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/#website\",\"url\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/\",\"name\":\"NC Servo Technology\",\"description\":\"We Buy &amp; Repair Servo Valves\",\"publisher\":{\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/#organization\",\"name\":\"NC Servo\",\"url\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"NC Servo\"},\"image\":{\"@id\":\"https:\\\/\\\/ncservo.com\\\/.wp-toolkit_m\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/NCServo\\\/\",\"https:\\\/\\\/x.com\\\/NcServo\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"MOOG G631-3806B-5 Proportional Valve Repair","description":"NC Servo repairs your warrantied, durable servo valve repair for your MOOG G631-3806B-5. 50+ years of hydraulic repair experience. Schedule now!","robots":{"index":"noindex","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"og_locale":"en_US","og_type":"article","og_title":"MOOG G631-3806B-5 Proportional Valve Repair","og_description":"NC Servo repairs your warrantied, durable servo valve repair for your MOOG G631-3806B-5. 50+ years of hydraulic repair experience. Schedule now!","og_url":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/","og_site_name":"Nc Servo Technology","article_publisher":"https:\/\/www.facebook.com\/NCServo\/","article_modified_time":"2026-03-25T17:25:42+00:00","og_image":[{"width":1110,"height":1024,"url":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-content\/uploads\/2026\/03\/moog-g631-3800b-servo-valve-p60jdgm4vbr-image-1.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","twitter_site":"@NcServo","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/","url":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/","name":"MOOG G631-3806B-5 Proportional Valve Repair","isPartOf":{"@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/#website"},"primaryImageOfPage":{"@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/#primaryimage"},"image":{"@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/#primaryimage"},"thumbnailUrl":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-content\/uploads\/2026\/03\/moog-g631-3800b-servo-valve-p60jdgm4vbr-image-1.webp","datePublished":"2025-06-16T19:11:00+00:00","dateModified":"2026-03-25T17:25:42+00:00","description":"NC Servo repairs your warrantied, durable servo valve repair for your MOOG G631-3806B-5. 50+ years of hydraulic repair experience. Schedule now!","breadcrumb":{"@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/#primaryimage","url":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-content\/uploads\/2026\/03\/moog-g631-3800b-servo-valve-p60jdgm4vbr-image-1.webp","contentUrl":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-content\/uploads\/2026\/03\/moog-g631-3800b-servo-valve-p60jdgm4vbr-image-1.webp","width":1110,"height":1024},{"@type":"BreadcrumbList","@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/moog-g631-3806b-5\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/ncservo.com\/.wp-toolkit_m\/"},{"@type":"ListItem","position":2,"name":"Inventory","item":"https:\/\/ncservo.com\/.wp-toolkit_m\/inventory\/"},{"@type":"ListItem","position":3,"name":"MOOG G631-3806B-5 Valve"}]},{"@type":"WebSite","@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/#website","url":"https:\/\/ncservo.com\/.wp-toolkit_m\/","name":"NC Servo Technology","description":"We Buy &amp; Repair Servo Valves","publisher":{"@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ncservo.com\/.wp-toolkit_m\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/#organization","name":"NC Servo","url":"https:\/\/ncservo.com\/.wp-toolkit_m\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/#\/schema\/logo\/image\/","url":"","contentUrl":"","caption":"NC Servo"},"image":{"@id":"https:\/\/ncservo.com\/.wp-toolkit_m\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/NCServo\/","https:\/\/x.com\/NcServo"]}]}},"_links":{"self":[{"href":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-json\/wp\/v2\/product\/46940","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-json\/wp\/v2\/media\/57817"}],"wp:attachment":[{"href":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-json\/wp\/v2\/media?parent=46940"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-json\/wp\/v2\/product_brand?post=46940"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-json\/wp\/v2\/product_cat?post=46940"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ncservo.com\/.wp-toolkit_m\/wp-json\/wp\/v2\/product_tag?post=46940"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}