{"id":3854,"date":"2025-10-17T09:27:47","date_gmt":"2025-10-17T01:27:47","guid":{"rendered":"https:\/\/ballvalves.tw\/?post_type=product&#038;p=3854"},"modified":"2026-07-17T10:13:18","modified_gmt":"2026-07-17T02:13:18","slug":"%e5%be%ae%e5%8b%95%e9%96%8b%e9%97%9c","status":"publish","type":"product","link":"https:\/\/ballvalves.tw\/zh\/product\/micro-switch\/","title":{"rendered":"\u5fae\u52d5\u958b\u95dc \u2014 \u5e36\u4f4d\u7f6e\u6307\u793a\u529f\u80fd\u7684\u95a5\u9580\u9650\u4f4d\u958b\u95dc\u76d2\uff08NAMUR\uff09"},"content":{"rendered":"<h2>\u7522\u54c1\u8aaa\u660e<\/h2>\n<p>Automation only works if you can verify it. This <strong>\u9650\u4f4d\u958b\u95dc\u76d2<\/strong> tells you \u2014 and your control system \u2014 whether a valve is actually open or closed. It mounts on top of the actuator and houses <strong>mechanical limit switches<\/strong> that trip as the valve reaches each end position, sending an electrical signal back to the control room.<\/p>\n<p>If a valve fails to reach its position, the switch does not send its signal, and your system can raise an alarm before the fault causes a problem. That makes it a component you rely on for process safety, not just convenience.<\/p>\n<h2>What It Does<\/h2>\n<ul>\n<li><strong>Position feedback:<\/strong> confirms open or closed status to the control room for remote monitoring.<\/li>\n<li><strong>Safety interlocks:<\/strong> lets the system block an action \u2014 like starting a pump \u2014 until a valve is in the right position.<\/li>\n<li><strong>Fault detection:<\/strong> a missing signal flags a valve that is stuck or has failed to move.<\/li>\n<\/ul>\n<h2>\u4e3b\u8981\u898f\u683c<\/h2>\n<table style=\"width:100%;border-collapse:collapse\">\n<tbody>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;text-align:left;width:38%\">Switch type<\/th>\n<td style=\"border:1px solid #ddd;padding:8px\">Mechanical limit switches<\/td>\n<\/tr>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;text-align:left\">\u529f\u80fd<\/th>\n<td style=\"border:1px solid #ddd;padding:8px\">Open \/ closed position feedback<\/td>\n<\/tr>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;text-align:left\">\u5b89\u88dd<\/th>\n<td style=\"border:1px solid #ddd;padding:8px\">NAMUR standard, on top of the actuator<\/td>\n<\/tr>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;text-align:left\">Fit<\/th>\n<td style=\"border:1px solid #ddd;padding:8px\">Any NAMUR-compatible actuator \u2014 tell us your actuator when ordering<\/td>\n<\/tr>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;text-align:left\">SKU<\/th>\n<td style=\"border:1px solid #ddd;padding:8px\">LSB-01<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Why NAMUR Mounting Matters<\/h2>\n<p>Because the box follows the NAMUR standard, it is not tied to one actuator brand. The same switch box drops onto any NAMUR-compatible pneumatic or electric actuator, so you can standardize on one position-feedback part across a plant instead of stocking a different unit for every actuator.<\/p>\n<h2>\u61c9\u7528\u9818\u57df<\/h2>\n<ul>\n<li><strong>Control rooms<\/strong> \u2014 remote monitoring of valve status across the plant.<\/li>\n<li><strong>Safety interlocks<\/strong> \u2014 confirming valves are closed before maintenance starts.<\/li>\n<li><strong>Automated lines<\/strong> \u2014 verifying each valve reached its commanded position.<\/li>\n<\/ul>\n<h2>Related Automation Parts<\/h2>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;text-align:left\">\u90e8\u5206<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;text-align:left\">Use it for<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px\"><strong>Limit switch box (this page)<\/strong><\/td>\n<td style=\"border:1px solid #ddd;padding:8px\">Reporting valve open\/closed position back to the control system.<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px\"><a href=\"https:\/\/ballvalves.tw\/zh\/%e7%94%a2%e5%93%81\/%e9%9b%bb%e7%a3%81%e9%96%a5\/\">NAMUR \u96fb\u78c1\u95a5<\/a><\/td>\n<td style=\"border:1px solid #ddd;padding:8px\">The pilot that drives a pneumatic actuator.<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px\"><a href=\"https:\/\/ballvalves.tw\/zh\/%e7%94%a2%e5%93%81\/%e5%82%99%e7%94%a8%e9%9b%bb%e6%b1%a0%e9%9b%bb%e5%8b%95%e5%9f%b7%e8%a1%8c%e5%99%a8\/\">Electric actuator<\/a><\/td>\n<td style=\"border:1px solid #ddd;padding:8px\">The motor that opens and closes the valve.<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px\"><a href=\"https:\/\/ballvalves.tw\/zh\/%e7%94%a2%e5%93%81\/%e6%94%af%e6%9e%b6%e9%80%a3%e6%a1%bf\/\">Bracket &amp; linkage<\/a><\/td>\n<td style=\"border:1px solid #ddd;padding:8px\">Mounting an actuator to the valve in the first place.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\u5e38\u898b\u554f\u984c<\/h2>\n<h3>What does a valve limit switch box do?<\/h3>\n<p>It reports the valve&#8217;s position. Mechanical switches inside trip when the valve reaches its open or closed end position and send an electrical signal to your control system, so you know the valve&#8217;s status without standing next to it.<\/p>\n<h3>Is it NAMUR standard?<\/h3>\n<p>Yes. It mounts to the NAMUR standard on top of the actuator, so it fits any NAMUR-compatible pneumatic or electric actuator rather than one specific brand.<\/p>\n<h3>What type of switches does it use?<\/h3>\n<p>Mechanical limit switches. They trip on contact as the valve reaches each end position.<\/p>\n<h3>Why is position feedback important?<\/h3>\n<p>Automation assumes a valve moved when commanded. The switch box verifies it actually did. If the signal is missing, the control system can raise an alarm or hold an interlock before a mis-positioned valve causes a problem.<\/p>\n<h3>Which actuators does it fit?<\/h3>\n<p>Any NAMUR-compatible actuator. Tell us the actuator you are using so we can confirm the fit.<\/p>\n<h3>\u6211\u8a72\u5982\u4f55\u67e5\u8a62\u50f9\u683c\uff1f<\/h3>\n<p>Send us your actuator details and the quantity. We reply to every inquiry within 24 hours.<\/p>\n<p><a href=\"https:\/\/ballvalves.tw\/zh\/%e8%81%af%e7%b5%a1\/\" style=\"display:inline-block;background:#c62828;color:#ffffff !important;font-size:16px;font-weight:700;padding:14px 26px;border-radius:6px;text-decoration:none\">\u7d22\u53d6\u5831\u50f9 \u2014 24 \u5c0f\u6642\u5167\u56de\u8986 \u2192<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>A <strong>valve limit switch box<\/strong> that reports whether your valve is open or closed. Mechanical limit switches inside send the position signal back to your control room for remote monitoring and safety interlocks.<\/p>\n<p><strong>NAMUR standard mounting<\/strong> \u2014 it fits on top of any NAMUR-compatible actuator, so it works across pneumatic and electric automation. Tell us your actuator when ordering.<\/p>\n<p>ISO 9001 \u00b7 CE \u00b7 \u81ea 1999 \u5e74\u8d77\u5f9e\u4e8b\u88fd\u9020<\/p>\n<p><a href=\"https:\/\/ballvalves.tw\/zh\/%e8%81%af%e7%b5%a1\/\" style=\"display:inline-block;background:#c62828;color:#ffffff !important;font-size:16px;font-weight:700;padding:14px 26px;border-radius:6px;text-decoration:none\">\u7d22\u53d6\u5831\u50f9 \u2014 24 \u5c0f\u6642\u5167\u56de\u8986 \u2192<\/a><\/p>","protected":false},"featured_media":3805,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[78],"product_cat":[69],"product_tag":[],"class_list":["post-3854","product","type-product","status-publish","has-post-thumbnail","product_brand-yzng-trong","product_cat-accessories","desktop-align-left","tablet-align-left","mobile-align-left","first","instock","taxable","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/ballvalves.tw\/zh\/wp-json\/wp\/v2\/product\/3854","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ballvalves.tw\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ballvalves.tw\/zh\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ballvalves.tw\/zh\/wp-json\/wp\/v2\/media\/3805"}],"wp:attachment":[{"href":"https:\/\/ballvalves.tw\/zh\/wp-json\/wp\/v2\/media?parent=3854"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ballvalves.tw\/zh\/wp-json\/wp\/v2\/product_brand?post=3854"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ballvalves.tw\/zh\/wp-json\/wp\/v2\/product_cat?post=3854"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ballvalves.tw\/zh\/wp-json\/wp\/v2\/product_tag?post=3854"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}