BWT D1 Pressure Reducer | Red

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