{"product_id":"onyx-15mm-x-1-2-angled-white-trv-lockshield-twin-pack","title":"Onyx 15mm x 1\/2 Angled White TRV \u0026 Lockshield Twin Pack","description":"\u003c!-- SEO Product Name: Onyx 15mm x 1\/2 Angled White TRV \u0026 Lockshield Twin Pack --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; color:#2B2B2B; line-height:1.6; font-family:Arial, Helvetica, sans-serif;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eThe \u003cstrong\u003eOnyx 15mm x 1\/2\" Angled White TRV \u0026amp; Lockshield Twin Pack\u003c\/strong\u003e is a straightforward, reliable choice for controlling and balancing radiator heat output. This pack combines an \u003cstrong\u003eangled thermostatic radiator valve (TRV)\u003c\/strong\u003e with a matching lockshield valve, both finished in clean white to suit modern interiors.\u003c\/p\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eThe \u003cstrong\u003ebi-directional valve body\u003c\/strong\u003e and standard 15mm compression connection make installation straightforward for both DIY-minded homeowners and trade professionals, while the lockshield allows the system to be properly balanced for consistent heat output across multiple radiators.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:20px 0 24px 0;\"\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eTRV + Lockshield\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eValve Type\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eAngled\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eOrientation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e15mm x 1\/2\"\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eConnection Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eWhite\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eFinish\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e10 Bar\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eMax Pressure\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eTwin Pack\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003ePack Contents\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #E0942A; border-radius:6px; padding:14px 18px; margin:0 0 20px 0;\"\u003e\n\u003cdiv style=\"font-size:14px; font-weight:700; color:#E0942A; text-transform:uppercase; letter-spacing:.04em; margin-bottom:6px;\"\u003ePlease Note\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#2B2B2B; line-height:1.6;\"\u003eTechnical specifications shown are based on the standard performance figures for angled white TRV and lockshield valve sets of this type and connection size, cross-referenced against comparable certified products. Always confirm the exact specification against the product packaging or manufacturer documentation before installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:0 0 24px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eAngled Configuration\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eSuits standard radiator pipework layouts where the pipe approaches from below or the side at an angle.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eClean White Finish\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eA simple, unobtrusive finish that blends easily into modern bathrooms, kitchens and living spaces.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eBi-Directional Valve Body\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eCan be fitted with water flowing in either direction, giving flexibility during installation.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eThermostatic Control\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eAutomatically adjusts water flow to maintain your chosen room temperature, improving comfort and reducing energy waste.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eLockshield Valve Included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eAllows the system to be balanced properly, ensuring consistent heat output across multiple radiators.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#00625D; margin-bottom:6px;\"\u003eFrost Protection Setting\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eA built-in frost protection setting helps prevent freezing in unheated or infrequently used rooms.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; overflow:hidden; margin:0 0 24px 0;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003eValve Details\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eValve type\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eThermostatic radiator valve (TRV) with lockshield\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eOrientation\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eAngled\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eConnection size\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e15mm compression inlet, 1\/2\" BSP outlet\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003eConstruction\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eFinish\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eWhite\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eMaterial\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eBrass\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003ePerformance\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eMax. working pressure\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e10 bar\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eOperating temperature range\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eApprox. 7-28°C (typical for this valve type)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eMax. flow temperature\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eApprox. 110°C (typical for this valve type)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eValve body\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eBi-directional\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003ePack Contents\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eContents\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e1 thermostatic radiator valve, 1 lockshield valve\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#E6F4F3;\"\u003e\u003cspan\u003eWhat does 'bi-directional' mean for this valve?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eA bi-directional valve body can be fitted with water flowing in either direction through the valve, which gives more flexibility when planning pipework layouts during installation.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#E6F4F3;\"\u003e\u003cspan\u003eIs the lockshield included, or sold separately?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eThe lockshield valve is \u003cstrong\u003eincluded\u003c\/strong\u003e in this twin pack alongside the TRV, so you have both valves needed to fit and balance one radiator.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#E6F4F3;\"\u003e\u003cspan\u003eWhat size pipework does this fit?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eThis valve is designed for standard \u003cstrong\u003e15mm compression pipework\u003c\/strong\u003e with a 1\/2\" BSP radiator connection, which fits the majority of UK central heating radiators.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#00625D; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#E6F4F3;\"\u003e\u003cspan\u003eCan this be used on a heat pump system?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#008377CF\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eStandard TRVs like this are generally compatible with heat pump systems, but always check your heat pump manufacturer's guidance on valve compatibility and any minimum flow requirements before installation.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Onyx","offers":[{"title":"Default Title","offer_id":63999061950813,"sku":"EV-ON15TP","price":13.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/ev-on15tp-onyx-15mm-angled-trv-twin-pack-11.jpg?v=1774601136","url":"https:\/\/qualityheating.co.uk\/products\/onyx-15mm-x-1-2-angled-white-trv-lockshield-twin-pack","provider":"AIZO Quality Heating","version":"1.0","type":"link"}