{"id":10520,"date":"2026-01-14T10:39:55","date_gmt":"2026-01-14T09:39:55","guid":{"rendered":"https:\/\/lubeteam.it\/prodotto\/valves-and-indicators-for-stauff-pressure-filters\/"},"modified":"2026-01-27T15:22:45","modified_gmt":"2026-01-27T14:22:45","slug":"valves-and-indicators-for-stauff-pressure-filters","status":"publish","type":"product","link":"https:\/\/lubeteam.it\/en\/product\/valves-and-indicators-for-stauff-pressure-filters\/","title":{"rendered":"Valves and Indicators for Stauff Pressure Filters"},"content":{"rendered":"<p>SF Series Valves and Indicators: Advanced Control for Pressure Filters<\/p>\n<p>The efficiency of hydraulic systems depends on integrated flow management devices. Stauff offers a complete range of valves and indicators to configure pressure filters according to specific application requirements.<\/p>\n<p>Types of Integrated Valves<\/p>\n<p>The valves are inserts mounted in the filter head to manage flow:<\/p>\n<ul>\n<li><strong>Non-Bypass Insert (HVO):<\/strong> Standard insert without a valve function. All fluid passes through the element; the element\u2019s collapse pressure must exceed system pressure.<\/li>\n<li><strong>Bypass Valve (HVB):<\/strong> Allows oil to bypass the element when differential pressure reaches <strong>6 bar (+0.5 bar)<\/strong>, protecting the element from collapse. Typically used with elements featuring low collapse resistance (30 bar).<\/li>\n<li><strong>Reverse Flow Valve (HVR):<\/strong> Allows fluid to pass in the reverse direction without filtration, preventing backflushing of the element.<\/li>\n<li><strong>Check Valve (HVN):<\/strong> Prevents the pressure line from draining during filter maintenance.<\/li>\n<li><strong>Multi-Function Valve (HVM):<\/strong> A unit that combines three functions: bypass, reverse flow, and check valve.<\/li>\n<\/ul>\n<p>HI Series Clogging Indicators<\/p>\n<p>The indicators monitor differential pressure and signal element clogging. The standard setting is 5 bar (\u00b110%), higher than optional indicator settings to ensure alarm activation before bypass opening.<\/p>\n<p><strong>Available Variants<\/strong><\/p>\n<ul>\n<li><strong>Plug (HI-O):<\/strong> Seals the port when no indicator is required.<\/li>\n<li><strong>Visual (HI-A \/ HI-V):<\/strong> Mechanical indication available with automatic reset (HI-A) or manual reset (HI-V).<\/li>\n<li><strong>Electrical (HI-E):<\/strong> Switch for remote signaling.<\/li>\n<li><strong>Visual-Electrical (HI-P \/ HI-D):<\/strong> Combine a switch and LED (e.g. HI-D024 with Green\/Yellow\/Orange\/Red LED).<\/li>\n<\/ul>\n<p>Thermo-Stop Function<\/p>\n<p>Indicators can be equipped with a Thermo-stop function, which inhibits the alarm below 20\u00b0C to prevent false signals caused by high fluid viscosity at low temperatures.<\/p>\n<p><strong>Technical Specifications and Materials<\/strong><\/p>\n<ul>\n<li><strong>Body:<\/strong> Stainless steel (standard series) or brass (HI-D series).<\/li>\n<li><strong>Seals:<\/strong> NBR (Buna-N) or FKM (Viton).<\/li>\n<li><strong>Connection:<\/strong> G 1\/2 thread.<\/li>\n<\/ul>\n<h3>Summary technical table of the main features of Valves and Indicators for Stauff Pressure Filters.<\/h3>\n<div style=\"width: 100%; overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse;\">\n<thead>\n<tr>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f2f2f2;\">Feature<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left; background-color: #f2f2f2;\">Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Product Type<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Insert valves and differential indicators<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Filter Compatibility<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">SF Series (Pressure Filters)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Bypass Valve Setting (HVB)<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">6 bar (+0.5 bar)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Special Valve Functions<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Reverse flow (HVR), Check valve (HVN), Multi-function (HVM)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Standard Indicator Setting<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">5.0 bar (\u00b110%)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Indicator Types<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Plug (HI-O), Visual (HI-A\/V), Electrical (HI-E), Visual-Electrical (HI-P\/D)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Thermo-stop Temperature<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20\u00b0C (signal inhibited below this temperature)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Indicator Connection<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">G 1\/2 thread<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Indicator Body Materials<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Stainless steel (std), Brass (HI-D)<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Seal Materials<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">NBR (Buna-N), FKM (Viton)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Valves and indicators for Stauff pressure filters are essential components for optimizing and monitoring hydraulic filtration systems. The range includes filter head inserts: non-bypass (HVO), bypass valve (HVB), reverse flow (HVR), check valve (HVN), and multi-function (HVM). HI series differential clogging indicators provide precise monitoring with a standard 5 bar threshold.<\/p>\n","protected":false},"featured_media":10192,"template":"","meta":[],"product_brand":[],"product_cat":[103,191,417],"product_tag":[281],"class_list":{"0":"post-10520","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-filters","7":"product_cat-stauff-filters","8":"product_cat-stauff-pressure-filters","9":"product_tag-stauff","10":"yith_product_brand-stauff","12":"first","13":"instock","14":"shipping-taxable","15":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v26.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Valves and indicators for Stauff Pressure Filters \u2013 LubeTeam Hydraulic<\/title>\n<meta name=\"description\" content=\"Valves and indicators for Stauff filters: bypass, reverse flow, and check valve inserts, plus HI differential indicators (visual, electrical, LED). 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