Save water and money Powerful, intelligent and quiet as a whisper, it reduces pressure and water consumption. The D1 impresses with a complete range, its hightech materials, innovative design, connection to the BWT App with watersaving calculator and 100 % reliable product quality. Masterpiece Highest flow rate and perfect pressure control due to patented Venturi effect Flow optimisation and nozzle grading lead to unique Kvs value of 9.3 m³/h (DN25) (known products provide only up to 5.8 m³/h) Robust design icon, up to 50 % heavier than comparable products (weight D1 Red DN25: 1.7 kg vs. competitors 1.14 to 1.4 kg) Up to 16 or 25 bar inlet pressure Full range 3 -metal materials: brass UBA – red brass lead free – stainless steel High-quality plastic derived from medical technology 40 °C cold or hot water up to 85 °C Dimension ½“ to 2“ » Common lengths for easy exchange Full range of spare parts available (75 components) Instant hygiene Reminder service in the BWT App for annual maintenance Easily monitored via transparent filter screen cup Stainless steel screen 160 μm – easy to exchange in a few simple steps No need to dismantle the spring housing Save time and money during operation App for saving water and money Best Water Home App with setting aid to optimize the domestic water pressure and to reduce costs The water saving calculator shows how much money can be saved The target pressure value is set and adjusted in just a few simple steps and without any tools BWT D1 protects domestic water systems from excessive supply pressure in accordance with DIN EN 806-2 and DIN 1988-200 and thus helps, to avoid pressure-related damage reduce water consumption ensure sound insulation A wide range of products, including the spare parts, are available from the start. So, the BWT D1 can be used perfectly for private, industrial and commercial applications. D1 RED Full range up to 2“ Powerful with reserves Modern red brass material Technical Specifications Nominal diameter DN 15 20 25 32 40 50 Threaded nozzle connection - DIN EN 10226-1 G1 R 1/2" R 3/4" R 1" R 1 1/4" R 1 1/2" R 2" Connection body - DIN ISO 228-1 G2 G 3/4" G 1" G 1 1/4" G 1 1/2" G 2" G 2 1/2" Inlet pressure filter cup plastic bar max. 16 max. 16 max. 16 max. 16 max. 16 max. 16 Inlet pressure filter cup metal bar max. 25 max. 25 max. 25 max. 25 max. 25 max. 25 Operating temperature °C 40 40 40 40 40 40 Operating temperature filter cup metal °C 85 85 85 85 85 85 Outlet pressure bar 1.5 – 7 1.5 – 7 1.5 – 7 1.5 – 7 1.5 – 7 1.5 – 7 Installation dimension - D1 Eco / Red L mm 136 152 170 191 220 254 Installation dimension - D1 Inox L mm 140 160 180 200 225 255 Installation dimension D1 Eco / Red / Inox l mm 80 90 100 105 130 140 H mm 89 89 111 (Eco: 89) 111 151 151 h mm 58 58 64 (Eco: 58) 64 94 94 T1 mm 37 37 46 (Eco: 37) 46 50 50 Key-width D1 Eco / Red / Inox SW1 mm 30 37 46 52 65 80 SW2 mm 46 46 66 (Eco: 46) 66 75 75 SW3 mm 46 46 65 (Eco: 46) 65 75 75 Connection Manometer G3 1/4 " axial 1/4 " axial 1/4 " axial 1/4 " axial 1/4 " axial 1/4 " axial Weight - D1 Eco / Red kg 0.8 0.9 1.7 (Eco: 1.2) 1.9 3.9 4.5 Weight - D1 Inox kg 0.8 0.9 1.6 1.8 3.6 4.0 Flow coefficient Kvs m3/h 3.4 4.4 9.3 (Eco: 4.7) 10.5 19.5 20.5 D1 Red - Standard with all Extras ORDER NO DESCRIPTION LENGTH WITHOUT/WITH SCREW CONNECTION IN MM 125300277 BWT D1 Red ½“ 40.16 80/136 125300278 BWT D1 Red ¾“ 40.16 90/152 125300279 BWT D1 Red 1“ 40.16 100/170 125300280 BWT D1 Red 5/4“ 40.16 105/191 125300281 BWT D1 Red 6/4“ 40.16 130/220 125300282 BWT D1 Red 2“ 40.16 140/254 125300283 BWT D1 Red ½“ 85.25 80/136 125300284 BWT D1 Red ¾“ 85.25 90/152 125300285 BWT D1 Red 1“ 85.25 100/170 125300286 BWT D1 Red 5/4“ 85.25 105/191 125300287 BWT D1 Red 6/4“ 85.25 130/220 125300288 BWT D1 Red 2“ 85.25 140/254 Installation and operating manual