{"id":7647,"date":"2022-05-18T04:15:24","date_gmt":"2022-05-17T20:15:24","guid":{"rendered":"https:\/\/ancor.biz\/?post_type=product&#038;p=7647"},"modified":"2025-08-18T12:05:56","modified_gmt":"2025-08-18T04:05:56","slug":"dwyer-series-1630-large-diaphragm-pressure-switches","status":"publish","type":"product","link":"https:\/\/ancor.biz\/index.php\/product\/dwyer-series-1630-large-diaphragm-pressure-switches\/","title":{"rendered":"DWYER Series 1630 Diaphragm Pressure Switches"},"content":{"rendered":"<h1>Series 1630 Large Diaphragm Pressure Switches,Visual Set Point Adjustment in 5 Standard Ranges, 0.05&#8243; to 12&#8243; w.c. Repetitive Accuracy within \u00b11%<\/h1>\n<p>&nbsp;<\/p>\n<p>On the\u00a0<a href=\"https:\/\/ancor.biz\/index.php\/product-category\/brand\/dwyer-instruments-brand\/\">DWYER<\/a> Series 1630 Diaphragm Pressure Switches our highest precision conventional pressure switch provides maximum dependability. In addition, DWYER Series 1630 Diaphragm Pressure Switches incorporates a visible set point indicator for maximum convenience. UL and CSA listed, FM approved for general service. Electrical capability of 15 amps handles most small electrical loads. For use only with air or compatible gases.<\/p>\n<p>&nbsp;<\/p>\n<section id=\"features\" class=\"ui-tabs-panel ui-widget-content ui-corner-bottom\" role=\"tabpanel\" aria-labelledby=\"ui-id-4\" aria-expanded=\"true\" aria-hidden=\"false\">\n<h1 class=\"tab-heading\">Features<\/h1>\n<ul>\n<li>Visible set point indicator simplifies operation and trouble shooting<\/li>\n<li>Large diaphragm provides low range accuracy providing precise control<\/li>\n<li>Current loads of up to 15 amps supports most small electrical loads supporting a broader range of HVAC and Process applications without the need for additional relays and components<\/li>\n<\/ul>\n<\/section>\n<p>&nbsp;<\/p>\n<section id=\"specs\" class=\"ui-tabs-panel ui-widget-content ui-corner-bottom\" role=\"tabpanel\" aria-labelledby=\"ui-id-3\" aria-expanded=\"true\" aria-hidden=\"false\">\n<h1 class=\"tab-heading\">Specifications<\/h1>\n<ul class=\"list-specs lined\">\n<li>Service: Air and non-combustible, compatible gases.<\/li>\n<li class=\"title\">Wetted Materials: Consult factory.<\/li>\n<li class=\"title\">Temperature Limits: -30 to 110\u00b0F (-34.4 to 43.3\u00b0C).<\/li>\n<li class=\"title\">Pressure Limits: 10 psig (68.95 kPa) continuous, 25 psig (172.4 kPa) surge.<\/li>\n<li class=\"title\">Switch Type: SPDT.<\/li>\n<li class=\"title\">Repeatability: \u00b11%.<\/li>\n<li class=\"title\">Electrical Rating: 15 A @ 120-480 VAC, 60 Hz. Resistive, 1\/8 HP @ 125 VAC, 1\/4 HP @ 250 VAC, 60 Hz.<\/li>\n<li class=\"title\">Electrical Connections: 3 screw type, common, normally open and normally closed.<\/li>\n<li class=\"title\">Process Connections: 1\/8&#8243; female NPT.<\/li>\n<li class=\"title\">Mounting Orientation: Diaphragm in vertical position. Consult factory for other position orientations.<\/li>\n<li class=\"title\">Set Point Adjustment: Screw type with enclosed scale.<\/li>\n<li class=\"title\">Weight: 3 lb 3 oz (1.50 kg).<\/li>\n<li class=\"title\">Agency Approvals: CSA, FM, UL.<\/li>\n<\/ul>\n<\/section>\n<p>&nbsp;<\/p>\n<h2 class=\"tab-heading\">Models &amp; Ordering<\/h2>\n<table class=\"product-table\">\n<tbody>\n<tr>\n<th class=\"model-number\" nowrap=\"nowrap\" width=\"\">Model<\/th>\n<th class=\"description\" width=\"\">Description<\/th>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1638-0<\/td>\n<td class=\"description\" width=\"\">Large diaphragm pressure switch, range 0.05-0.25&#8243; w.c., approx deadband @ 0.04 min. set point, 0.05 max. set point.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1638-1<\/td>\n<td class=\"description\" width=\"\">Large diaphragm pressure switch, range 0.20-1.0&#8243; w.c., approx deadband @ 0.04 min. set point, 0.06 max. set point.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1638-10<\/td>\n<td class=\"description\" width=\"\">Large diaphragm pressure switch, range 3.0-12&#8243; w.c., approx deadband @ 0.11 min. set point, 0.30 max. set point.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1638-2<\/td>\n<td class=\"description\" width=\"\">Large diaphragm pressure switch, range 1.0-3.0&#8243; w.c., approx deadband @ 0.06 min. set point, 0.08 max. set point.<\/td>\n<\/tr>\n<tr>\n<td class=\"model-number\" nowrap=\"nowrap\" width=\"\">1638-5<\/td>\n<td class=\"description\" width=\"\">Large diaphragm pressure switch, range 2.0-6.0&#8243; w.c., approx deadband @ 0.07 min. set point, 0.25 max. set point.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Series 1630 Large Diaphragm Pressure Switches,Visual Set Point Adjustment in 5 Standard Ranges, 0.05&#8243; to 12&#8243; w.c. Repetitive Accuracy within \u00b11% &nbsp; On the\u00a0DWYER Series 1630 Diaphragm Pressure Switches our highest precision conventional pressure switch provides maximum dependability. In addition, DWYER Series 1630 Diaphragm Pressure Switches incorporates a visible set point indicator for maximum convenience. &#8230; <a title=\"DWYER Series 1630 Diaphragm Pressure Switches\" class=\"read-more\" href=\"https:\/\/ancor.biz\/index.php\/product\/dwyer-series-1630-large-diaphragm-pressure-switches\/\" aria-label=\"More on DWYER Series 1630 Diaphragm Pressure Switches\">Read more<\/a><\/p>\n","protected":false},"featured_media":7648,"template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"spay_email":""},"class_list":["post-7647","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-brand","product_cat-diffrential-pressure","product_cat-dwyer-switch-vacuum","product_cat-dwyer-instruments-brand","product_cat-dwyer-instruments-dwyer-omega","product_cat-dwyer-omega","product_cat-pressure-switch-dwyer-instruments-dwyer-omega","product_cat-switch-vacuum","product_cat-pressure-switch","product_cat-switch","product_tag-1638-0","product_tag-1638-1","product_tag-1638-10","product_tag-1638-2","product_tag-1638-5","product_tag-dwyer-series-1630","product_tag-dwyer-series-1630-diaphragm-pressure-switches","sales-flash-overlay","woocommerce-text-align-center","woocommerce-image-align-center","do-quantity-buttons"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.3 - 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