Pressure relief valves are specialised devices that normally operate as closed valves. They are designed to effectively maintain excessive pressure in the protected area. In addition, their operating principles provide additional protection against explosions. This makes them important for protecting premises exposed to potential threats. In this way, these valves play an important role in ensuring safety and stability in facilities that require special protection.<\/p>\n
Such a valve works by remaining closed until a certain level of overpressure is reached in the bunker or shelter. When the internal pressure exceeds the set threshold, the valve automatically opens, allowing excess air or pressure to be released. This prevents further pressure build-up that could damage the structure or endanger the safety of people in the protected space.<\/p>\n
BVNC valve range:<\/p>\n
BVN\u0421 40 - 40 m\u00b3\/h nominal air flow at 200 Pa
\nBVN\u0421 300 - 300 m\u00b3\/h nominal air flow at 200 Pa
\nBVN\u0421 600 - 600 m\u00b3\/h nominal air flow at 200 Pa
\nBVN\u0421 1500 - 1500 m\u00b3\/h nominal air flow at 200 Pa
\nBVN\u0421 2100 - 2100 m\u00b3\/h nominal air flow at 200 Pa
\nBVN\u0421 3300 - 3300 m\u00b3\/h nominal air flow at 200 Pa
\nTechnical specifications for explosion-proof closed valves:<\/p>\n
Resistance to back pressure: >900 (9) Kpa (bar)
\nMechanical shock resistance: >12 g
\nValues are for version Y (valve with protection only)
\nBVN\u0421 valves can be fitted with a special housing
\n(for connection to ducting, flanges, pre-filters, connectors)<\/p>","protected":false},"excerpt":{"rendered":"
Spiediena samazin\u0101\u0161anas v\u0101rsti ir specializ\u0113tas ier\u012bces, kas norm\u0101los apst\u0101k\u013cos darbojas k\u0101 sl\u0113gti v\u0101rsti. Tie ir izstr\u0101d\u0101ti, lai efekt\u012bvi uztur\u0113tu p\u0101rm\u0113r\u012bgu spiedienu aizsarg\u0101jamaj\u0101 zon\u0101. Turkl\u0101t to darb\u012bbas principi nodro\u0161ina papildu aizsardz\u012bbu pret spr\u0101dzieniem. Tas padara tos svar\u012bgus, lai aizsarg\u0101tu telpas, kas pak\u013cautas iesp\u0113jamiem draudiem. T\u0101d\u0101 veid\u0101 \u0161iem v\u0101rstiem ir svar\u012bga noz\u012bme dro\u0161\u012bbas un stabilit\u0101tes nodro\u0161in\u0101\u0161an\u0101 objektos, […]<\/p>","protected":false},"featured_media":3022,"comment_status":"open","ping_status":"closed","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":"","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":[],"product_cat":[44,49],"product_tag":[],"class_list":{"0":"post-2866","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-filtresanas-un-ventilacijas-sistemas","7":"product_cat-filtri","8":"desktop-align-left","9":"tablet-align-left","10":"mobile-align-left","12":"first","13":"instock","14":"shipping-taxable","15":"purchasable","16":"product-type-simple"},"yoast_head":"\n