{"product_id":"drayton-trv4-classic-15mm-white-chrome-angled-trv-integral-head-07-05-150","title":"Drayton TRV4 Classic 15mm White Chrome Angled TRV Integral Head 07 05 150","description":"\u003cdiv style=\"font-size:16px; max-width:900px; font-family:Arial,Helvetica,sans-serif; color:#222; line-height:1.6;\"\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eDrayton TRV4 Classic 15mm Angled TRV with Integral Head (MPN 07 05 150)\u003c\/strong\u003e is the most widely specified thermostatic radiator valve in the UK — a \u003cstrong\u003ecomplete angled TRV4 unit\u003c\/strong\u003e comprising the 15mm compression valve body and the liquid-filled classic sensing head. Rated \u003cstrong\u003eTELL Class I for energy efficiency\u003c\/strong\u003e and approved to \u003cstrong\u003eBS EN 215\u003c\/strong\u003e, it suits virtually all domestic and light commercial wet heating systems. The \u003cstrong\u003ereverse-flow body\u003c\/strong\u003e allows installation on flow or return; the \u003cstrong\u003epre-setting insert\u003c\/strong\u003e enables system balancing from the TRV without a separate tool.\u003c\/p\u003e\n\n\u003cdiv style=\"background:#008377CF; border-radius:6px; padding:18px 12px; display:flex; flex-wrap:wrap; justify-content:space-around; margin:18px 0;\"\u003e\n\u003cdiv style=\"text-align:center; padding:0 16px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; color:#fff;\"\u003eClass I\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#ddf4f2; text-transform:uppercase; letter-spacing:.5px;\"\u003eTELL Efficiency\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center; padding:0 16px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; color:#fff;\"\u003e15mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#ddf4f2; text-transform:uppercase; letter-spacing:.5px;\"\u003eCompression\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center; padding:0 16px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; color:#fff;\"\u003eReverse Flow\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#ddf4f2; text-transform:uppercase; letter-spacing:.5px;\"\u003eBody Feature\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center; padding:0 16px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; color:#fff;\"\u003eEN215\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#ddf4f2; text-transform:uppercase; letter-spacing:.5px;\"\u003eCertified\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align:center; padding:0 16px;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:700; color:#fff;\"\u003e10–30°C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; color:#ddf4f2; text-transform:uppercase; letter-spacing:.5px;\"\u003eTemp. Range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"border-left:4px solid #c0392b; background:#fff5f5; border-top:1px solid #ffd5d5; border-right:1px solid #ffd5d5; border-bottom:1px solid #ffd5d5; border-radius:0 6px 6px 0; padding:12px 16px; margin:10px 0;\"\u003e\n\u003cstrong style=\"color:#c0392b;\"\u003eSystem Flushing Required\u003c\/strong\u003e\u003cbr\u003eAfter installation, flush the heating system in accordance with \u003cstrong\u003eBS7593\u003c\/strong\u003e. \u003cstrong\u003eDo not add mineral-oil-based products\u003c\/strong\u003e to the system after flushing — these will damage valve internals.\u003c\/div\u003e\n\u003cdiv style=\"border-left:4px solid #b7660a; background:#fffbf0; border-top:1px solid #ffe6b3; border-right:1px solid #ffe6b3; border-bottom:1px solid #ffe6b3; border-radius:0 6px 6px 0; padding:12px 16px; margin:10px 0;\"\u003e\n\u003cstrong style=\"color:#b7660a;\"\u003eDifferential Pressure\u003c\/strong\u003e\u003cbr\u003eDifferential pressure across TRVs should not exceed \u003cstrong\u003e0.2 bar\u003c\/strong\u003e to prevent flow noise. Fit a Drayton DTB automatic by-pass valve where multiple TRVs may close simultaneously (see datasheet D30).\u003c\/div\u003e\n\u003cdiv style=\"border-left:4px solid #008377; background:#f0faf9; border-top:1px solid #b2e0db; border-right:1px solid #b2e0db; border-bottom:1px solid #b2e0db; border-radius:0 6px 6px 0; padding:12px 16px; margin:10px 0;\"\u003e\n\u003cstrong style=\"color:#008377;\"\u003eThis SKU Is the TRV Only\u003c\/strong\u003e\u003cbr\u003eMPN 07 05 150 is the angled TRV body with integral head, \u003cstrong\u003ewithout a lockshield\u003c\/strong\u003e. For a complete valve pair (TRV + lockshield), choose MPN 07 05 180.\u003c\/div\u003e\n\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377; border-bottom:2px solid #008377; padding-bottom:6px; margin:24px 0 12px 0;\"\u003eKey Features\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:14px; margin:18px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:220px;\"\u003e\u003cdiv style=\"border:1px solid #e0e0e0; border-radius:8px; padding:16px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:24px; margin-bottom:8px;\"\u003e🔁\u003c\/div\u003e\n\u003cdiv style=\"font-weight:700; color:#008377; border-bottom:2px solid #008377; padding-bottom:4px; margin-bottom:8px;\"\u003eReverse Flow Body\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#444;\"\u003eThe 15mm angled body accepts flow in either direction and the head can be oriented vertically or horizontally — no special body variants needed for different pipe configurations.\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:220px;\"\u003e\u003cdiv style=\"border:1px solid #e0e0e0; border-radius:8px; padding:16px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:24px; margin-bottom:8px;\"\u003e⚖\u003c\/div\u003e\n\u003cdiv style=\"font-weight:700; color:#008377; border-bottom:2px solid #008377; padding-bottom:4px; margin-bottom:8px;\"\u003ePre-Set Balancing\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#444;\"\u003eThe \u003cstrong\u003eflow-rate adjustment insert\u003c\/strong\u003e allows system balancing directly at the TRV body using a Drayton balancing key — reducing reliance on separate lockshield adjustment.\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:220px;\"\u003e\u003cdiv style=\"border:1px solid #e0e0e0; border-radius:8px; padding:16px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:24px; margin-bottom:8px;\"\u003e💧\u003c\/div\u003e\n\u003cdiv style=\"font-weight:700; color:#008377; border-bottom:2px solid #008377; padding-bottom:4px; margin-bottom:8px;\"\u003eDouble Gland Seal\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#444;\"\u003eTwo gland seals prevent leakage. The \u003cstrong\u003etop seal allows head removal without draining down\u003c\/strong\u003e — a significant practical advantage on occupied installations.\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; min-width:220px;\"\u003e\u003cdiv style=\"border:1px solid #e0e0e0; border-radius:8px; padding:16px; background:#fff;\"\u003e\n\u003cdiv style=\"font-size:24px; margin-bottom:8px;\"\u003e🏆\u003c\/div\u003e\n\u003cdiv style=\"font-weight:700; color:#008377; border-bottom:2px solid #008377; padding-bottom:4px; margin-bottom:8px;\"\u003eTELL Class I Rated\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#444;\"\u003eTELL Class I rates how quickly the valve responds, how well it holds setpoint, and its stability under pressure and temperature variation — Drayton TRV4 Classic achieves the highest possible rating.\u003c\/div\u003e\n\u003c\/div\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin:18px 0;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#fff; font-weight:700; padding:10px 14px; border-radius:6px 6px 0 0;\"\u003eTechnical Specifications\u003c\/div\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; border:1px solid #d0eeec;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eMPN\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003e07 05 150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eDescription\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003e15mm Angled TRV with Integral Classic Head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eFinish\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003eClassic White \/ Chrome\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eConnection\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003e15mm compression to BS EN 1254-2; ½\" BSP radiator thread to BS EN 10226\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eBody Material\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003eChrome-plated brass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eSensing Head Material\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003eChrome-plated brass with plastic bezel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eSetting Range\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003eApprox. 10°C – 30°C (1–5 + MAX)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eFrost Protection\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003eBelow 8°C (marked *)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eMax Flow Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003e110°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eMax Sensor Temperature\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003e50°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eMax Test Pressure\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003e20 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eMax Static Pressure (compression)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003e10 bar at 65°C; 6 bar at 110°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eMax Differential Pressure (valve closure)\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003e1 bar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eRecommended Max Differential Pressure\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003e0.2 bar (quiet operation); 0.6 bar absolute max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eSensor Sensitivity\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003e0.22 mm\/°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eHysteresis\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003e0.4 K\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eResponse Time\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003e20 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eEnergy Efficiency Rating\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003eTELL Class I\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#f4fcfb;\"\u003eStandard\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#f4fcfb;\"\u003eBS EN 215 \/ Keymark (valid to 31.03.2029)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:8px 12px; width:50%; font-weight:600; background:#fff;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"padding:8px 12px; background:#fff;\"\u003eDrayton by Schneider Electric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"font-size:18px; font-weight:700; color:#008377; border-bottom:2px solid #008377; padding-bottom:6px; margin:24px 0 12px 0;\"\u003eFrequently Asked Questions\u003c\/div\u003e\n\u003cdiv style=\"margin:18px 0;\"\u003e\n\u003cdetails style=\"border:1px solid #d0eeec; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#fff; padding:12px 16px; cursor:pointer; font-weight:600; list-style:none;\"\u003eCan this valve be fitted on the return pipe instead of the flow?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; background:#f9fefe; font-size:15px;\"\u003eYes. The TRV4 15mm angled body features \u003cstrong\u003ereverse flow as standard\u003c\/strong\u003e, so it can be installed on either the flow or the return pipe without any modification. Head orientation (vertical or horizontal) is also freely selectable.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #d0eeec; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#fff; padding:12px 16px; cursor:pointer; font-weight:600; list-style:none;\"\u003eIs a lockshield valve included?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; background:#f9fefe; font-size:15px;\"\u003eNo. MPN 07 05 150 is the TRV valve body and head only. A lockshield should be fitted at the opposite end of the radiator. For a complete TRV and lockshield pack, choose MPN 07 05 180.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #d0eeec; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#fff; padding:12px 16px; cursor:pointer; font-weight:600; list-style:none;\"\u003eHow do I balance the system using the TRV?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; background:#f9fefe; font-size:15px;\"\u003eThe pre-setting facility on the TRV4 body allows you to restrict flow through an individual radiator using a Drayton balancing key. Set the Kv value appropriate to the calculated flow requirement before commissioning. See Drayton datasheet D10-18 for Kv values.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #d0eeec; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#fff; padding:12px 16px; cursor:pointer; font-weight:600; list-style:none;\"\u003eWhat lockshield matches this TRV?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; background:#f9fefe; font-size:15px;\"\u003eThe TRV4 Classic range uses chrome-finish lockshields. The matching 15mm angled chrome lockshield with chrome cap is MPN 07 05 917. Alternatively, order the complete pack MPN 07 05 180 which includes both the TRV and lockshield.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #d0eeec; border-radius:6px; margin-bottom:8px; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#fff; padding:12px 16px; cursor:pointer; font-weight:600; list-style:none;\"\u003eWill the TRV4 head from an older radiator fit this body?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; background:#f9fefe; font-size:15px;\"\u003eYes — TRV4 sensing heads are interchangeable across TRV4 bodies (Classic, Chrome, White, and Anthracite). However, TRV3 heads are \u003cstrong\u003enot compatible\u003c\/strong\u003e with TRV4 bodies.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Drayton Controls","offers":[{"title":"Default Title","offer_id":64954605044061,"sku":"0705150","price":26.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/DraytonTRV4Classic15mmWhiteChromeAngledTRVIntegralHead0705150.jpg?v=1781185848","url":"https:\/\/qualityheating.co.uk\/products\/drayton-trv4-classic-15mm-white-chrome-angled-trv-integral-head-07-05-150","provider":"AIZO Quality Heating","version":"1.0","type":"link"}