{"product_id":"dorma-bts75v-size-1-4-floor-spring","title":"Dorma BTS75V Size 1-4 Floor Spring","description":"\u003cp\u003e\u003cstrong\u003eProduct Information\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Dorma BTS75 Floor Springs are designed for versatility and durability, featuring an adjustable strength range of size 1-4. These springs are suitable for both single and double action doors when paired with the appropriate accessory pack.\u003c\/p\u003e\n\u003cp\u003eAvailable options include models with or without a 90-degree hold open feature. They can accommodate doors weighing up to 120kg and measuring a maximum width of 1100mm. Each unit is rigorously tested to meet BS EN1154 standards and is CE Marked for quality assurance.\u003c\/p\u003e\n\u003cp\u003eKey features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHold open functionality\u003c\/li\u003e\n\u003cli\u003eBack check mechanism\u003c\/li\u003e\n\u003cli\u003eAdjustable closing speed\u003c\/li\u003e\n\u003cli\u003eAdjustable latch action\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor detailed explanations of these functions, please refer to our FAQs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Specification\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitting:\u003c\/strong\u003e Concealed - Installed within the floor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards:\u003c\/strong\u003e Tested to BS EN1154.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eHeight: 50mm\u003c\/li\u003e\n\u003cli\u003eWidth: 82mm\u003c\/li\u003e\n\u003cli\u003eLength: 285mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Door Weight:\u003c\/strong\u003e 120kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Door Width:\u003c\/strong\u003e 1100mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrength:\u003c\/strong\u003e Adjustable Size 1-4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpindle:\u003c\/strong\u003e Yes - 15mm (excluding 3mm collar).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Closing Speed:\u003c\/strong\u003e Yes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Latch Action:\u003c\/strong\u003e Yes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDelayed Action:\u003c\/strong\u003e No.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackcheck:\u003c\/strong\u003e Yes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHold Open:\u003c\/strong\u003e Available with or without hold open (note: hold open model is not suitable for fire doors).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCE Marked:\u003c\/strong\u003e Products with factory-fitted hold open do not carry a CE mark.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHanding:\u003c\/strong\u003e Non-handed.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dormakaba","offers":[{"title":"90 degree hold open","offer_id":53915390214482,"sku":"BTS75VHO-UDF","price":270.6,"currency_code":"GBP","in_stock":true},{"title":"No hold open","offer_id":53915390247250,"sku":"BTS75V-UDF","price":270.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1081\/7994\/7858\/files\/BTS75V_1_1_055ae005-8512-4ca3-a7b9-d8d9223b7040.avif?v=1783147254","url":"https:\/\/upvcfittings.co.uk\/products\/dorma-bts75v-size-1-4-floor-spring","provider":"My Store","version":"1.0","type":"link"}