Grundfos Stn-4.0 B 4.0 Bar Negative Twin - Shower Pump

STN-4.0 B Grundfos STN-4.0 B is a premium brass shower pump with universal head and 2 impellers, designed and manufactured to the highest standards. The shower pump is continuously rated as a regenerative pump making it equipped to overcome air pockets and ideal where the plumbing route includes multiple bends and elbows. This shower pump ensures high performance, long durability and is suitable for domestic, commercial or light industrial use to boost shower pressure up to 4 bar. The shower pump is used for boosting both hot and cold water to single showers, multiple showers or whole house boosting where the outlets are above or below the cold-water tank. The shower pump is characterized as heavy-duty and it relies upon brass impellers and machined brass stampings for improved durability and high performance. The pump is supplied with a stainless steel, flexible and braided connection hose making it resistant to corrosion. Anti-vibration feet and long-life silicon carbide seals ensure that the operating noise is held at a minimum. The shower pump has built-in thermal protection, which immediately stops the pump motor if it overheats. The shower pump is a WRAS approved product and as such the whole product has undergone and passed extensive mechanical and water quality testing. Additionally, this pump is a regenerative pump making it equipped to overcome air pockets. Brass impellers and housing for high performance and improved durability. Integrated thermal protection Regenerative impeller design to overcome air pockets Low speed and quiet induction motor for longer durability Continuously rated regenerative pump (in UK is used) Long life carbide seals Stainless steel flexible connection hose Anti-vibration feet for minimum operating noise WRAS approved product Specifications Product name STN-4.0 B GBQP Product No 98284262 EAN number 5700311402603 Technical Rated flow 0.6 m³/h Rated head 35.9 m Maximum head 40 m Code for shaft seal GBQP Approvals for drinking water WRAS Curve tolerance ISO9906:2012 3B Model A Materials Pump housing Brass Impeller Brass Installation Range of ambient temperature 0 .. 40 °C Maximum operating pressure 6 bar Type of inlet connection G Type of outlet connection G Size of inlet connection 3/4 inch Size of outlet connection 3/4 inch Pressure rating for connection PN 6 Liquid Pumped liquid Water Liquid temperature range 5 .. 60 °C Selected liquid temperature 20 °C Density 998.2 kg/m³ Electrical data Motor type INDUCTION P1 max. 790 W Mains frequency 50 Hz Rated voltage 1 x 230 V Rated current 3.6 A Capacitor size - run 16 µF/450 V Enclosure class (IEC 34-5) X2 Insulation class (IEC 85) F Built-in motor protection YES Length of cable 1.5 m Type of cable plug NO Controls Flow switch Yes/No Y Pressure switch Yes/No N Others Net weight 12.2 kg Gross weight 13.7 kg Shipping volume 0.035 m³ Approvals CE,WRAS Country of origin GB Custom tariff no. 84137081