{"product_id":"200mm-fire-rated-supply-diffuser","title":"200mm Fire-Rated Supply Diffuser","description":"\u003c!-- x-tinymce\/html --\u003e\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis 8-inch\/200mm supply valve is designed for use with PIV systems installed in homes with 3 or more storeys to protect stairwells and escape routes in the event of a fire. The grilles include an intumescent material that gives a 60-minute fire rating in solid timber joist floor\/ceiling constructions and a 30-minute fire rating in I-Beam and metal web joist floor\/ceiling constructions, meeting the requirements of Approved Document B of the UK Building Regulations.\u003c\/p\u003e\u003cp\u003eThe valves are constructed from white epoxy finished steel and are supplied complete with a bayonet action fixing frame. This allows positive locking and sealing of the valve, yet still enables easy removal for adjustment or cleaning.\u003cbr\u003e\u003cbr\u003eThe valve profile is designed to eliminate fouling of adjacent decorated surfaces. The central core is adjustable and offers a wide range of settings to meet specific system designs.\u003c\/p\u003e\u003cp\u003e\u003c!-- x-tinymce\/html --\u003e\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e60 Minutes Fire Rating in Solid Timber Joist Floor\/Ceilings Constructions\u003c\/li\u003e\n\u003cli\u003e30 Minutes Fire Rating in I-Beam and Metal Web Joist Floor\/Ceiling Constructions\u003c\/li\u003e\n\u003cli\u003eNo maintenance required\u003c\/li\u003e\n\u003cli\u003eMeets the requirements of Approved Document B\u003c\/li\u003e\n\u003cli\u003eSimple to install\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"National Ventilation","offers":[{"title":"Default Title","offer_id":58037860565256,"sku":"VEN 475664","price":88.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1044\/2362\/0872\/files\/200mm-fire-rated-supply-diffuser-7689-p.jpg?v=1784050335","url":"https:\/\/www.extractorfanworld.co.uk\/products\/200mm-fire-rated-supply-diffuser","provider":"Extractor Fan World","version":"1.0","type":"link"}