{"product_id":"guardian-407-412-pressure-vacuum-valves-3-4-nps-swivel-connection","title":"GUARDIAN™ 407\/412 PRESSURE\/VACUUM VALVES (3\" \u0026 4\" NPS SWIVEL CONNECTION)","description":"\u003cp\u003eThe Betts’ Guardian™ combination valve is a spring-loaded reclosing pressure and vacuum relief device\/valve for use on a cargo tank’s primary pressure and vacuum relief system. The combination relief valve is designed, tested and marked in accordance with US DOT 49CFR §178.345-10, §178.347-4 and §178.348-4. The body and O-ring holder are constructed of 316L stainless steel with PTFE standard seals for compatibility with a wide range of products and temperatures.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVibration Resistant Magnetic Vacuum Seat\u003c\/li\u003e\n\u003cli\u003e3” or 4” NPS Swivel mounting available\u003c\/li\u003e\n\u003cli\u003eCompact optimized flow design\u003c\/li\u003e\n\u003cli\u003eSeal tabs on shroud and body\u003c\/li\u003e\n\u003cli\u003eMultiple seal material options\u003c\/li\u003e\n\u003cli\u003eMinimum Bursting Pressure: 200 psi [13.8 bar]\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in 3\" and 4\" NPS swivel sizes for cargo tank MAWP of 25, 30 or 35 psig (set pressure 30, 36 or 42 psig). Select the configuration you need from the table below.\u003c\/p\u003e","brand":"Betts","offers":[{"title":"Default Title","offer_id":54093743620291,"sku":"RVCST","price":1882.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1799\/0593\/files\/RVCST.png?v=1790739449","url":"https:\/\/www.apsaviation.com\/products\/guardian-407-412-pressure-vacuum-valves-3-4-nps-swivel-connection","provider":"APS Aviation","version":"1.0","type":"link"}