DQ Home | DQ Accessories | Thermostatic Valve   Thermostatic Valve This top Selling valve from DQ Heating is Thermostatically controlled enabling it's user to tailor the heat output to what is required. Available in Straight/Angled & manufactured to the highest standards in Italy. Stocked Item (Straight & Angled - Chrome/Gold) X-Head Angled Valve X-Head Angled Valve