Series description: Wilo-Drain STS H/m 12 Wilo-Drain STS 1 8 6 2 2 6 8 1 12 1 16 Q/m³/h Design Submersible sewage pump Application Pumping of heavily contaminated fluids for: Domestic and site drainage Sewage disposal (pumping of sewage free of faeces) in accordance with DIN EN 125-2) Water management Environmental and water treatment technology Industrial and process engineering Type key e.g.: STS Wilo Drain STS /1 A Submersible pump Nominal diameter [mm] 1 Max. delivery head [m] A With float switch Special features/product advantages Attached float switch (A-model) enables easy operation Integrated pump base for easy installation Impeller made of stainless steel Low weight Technical data Mains connection: 1~23 V, 5 Hz or 3~ V, 5 Hz Immersed operating mode: S1 or S3 25% Protection class: IP 68 Insulation class: B Thermal winding monitoring Max. fluid temperature: 3 35 C Cable length: 1 m Free ball passage: mm Max. immersion depth: 5 m Equipment/function Ready-to-plug single-phase version A-model version including float switch Thermal motor monitoring Description/design Submersible sewage pump as submersible monobloc unit for stationary and portable wet well installation. Hydraulics The outlet on the pressure side is designed as vertical threaded connection Rp 1½. Vortex impellers are used as the impeller shapes. Motor Dry motors give off their heat directly to the surrounding fluid via the housing components and can be used in immersed state for permanent or intermittent operation. A sealing chamber protects the motor from fluid ingress. The filling fluid used is potentially biodegradable and environmentally safe. The single-phase AC motors are equipped with shockproof plugs, and A- model versions with float switches. The three-phase AC motors are equipped with bare cable ends. Sealing Sealing on the fluid side is achieved by a bidirectional mechanical seal, while sealing on the motor side is achieved by a rotary shaft seal. Materials Pump housing: EN-GJL-25 Pedestal: grey cast iron Impeller: stainless steel 1.31 Shaft: stainless steel 1. Mechanical seal on pump side: carbon/ceramic Shaft seal on motor side: Static gasket: Motor housing: stainless steel 1.31 Scope of delivery Pump ready for connection with 1 m connection cable For 1~23 V with shock-proof plug For 3~ V with bare cable end A-model version with attached float switch Installation and operating instructions Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-1 / 17
Series description: Wilo-Drain STS Accessories Non-return valve and gate valve Various pressure outlets and hoses Switchgears and relays Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-2 / 17
Duty chart: Wilo-Drain STS Duty chart H [m] Wilo-Drain STS 12 1 STS /1 8 STS /8 6 2 2 6 8 1 12 1 16 18 Q [m³/h] Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-3 / 17
Equipment/function: Wilo-Drain STS Design Submersible Single-channel impeller Vortex impeller Multi-channel impeller Open multi-channel impeller Macerator Turbulator Sealing chamber Leakage chamber Sealing by mechanical seal on motor side Sealing by rotary shaft seal on motor side Sealing by mechanical seal on fluid side AC motor Three-phase motor Direct activation Star-delta activation FC operation dry motor Motor with oil cooling Dry motor with closed-circuit cooling Application Wet well installation, stationary Wet well installation, portable Dry well installation, stationary Dry well installation, portable Equipment/function Motor leakage monitoring Sealing chamber monitoring Leakage chamber monitoring Motor temperature monitoring, bimetal PTC motor temperature monitoring Explosion protection Float switch Capacitor box for 1~23 V Ready-to-plug 1~ Materials Pump housing Impeller Motor housing = available, - = not available; = optional Version A integrated Cast iron Cast iron Stainless steel Subject to change without prior notice. www.wilo.co.uk 5 Hz 215- / 17
Product list: Wilo-Drain STS Pump type Mains connection Max. volume flow Max. delivery head Rated current Nominal motor power Max. immersion depth Art no. Q max / m 3 /h H max / m I N / A P 2 / kw STS /8-A 1~23 V, 5 Hz 15 8.6 5 265868 STS /8 1~23 V, 5 Hz 15 8.6 5 265866 STS /8 3~ V, 5 Hz 15 8 2.6 5 26587 STS /1-A 1~23 V, 5 Hz 2 1.75 5 26587 STS /1 1~23 V, 5 Hz 2 1.75 5 265872 STS /1 3~ V, 5 Hz 2 1 2.75 5 265876 Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-5 / 17
Data sheet: Wilo-Drain STS /8-A (1~23 V) Pump curves Wilo-Drain STS - 5 Hz - No. of poles: 2 H [m] 12 Unit Max. delivery head H max 8. m 1 STS /1 ø = mm Max. volume flow Q max 15. m 3 /h 8 STS /8 Pressure connection R 1½ 6 Maximum operating pressure p max 2 bar Free ball passage mm 2 Operating mode (immersed) S1 2 8 6 12 1 1 16 18 Q [m³/h] Pump curves in accordance with ISO 996, Appendix A Operating mode (non-immersed) Max. immersion depth 5 m Dimension drawing Wilo-Drain STS /8-A (1~23V) Protection class IP 68 Fluid temperature T +3... +35 C Weight approx. m 2.2 kg 81,6 Motor data Mains connection 1~23 V, 5 Hz Rated current I N 3.6 A Nominal motor power P 2.6 kw Rp 1½ 52,5 336 55 Power consumption P 1.8 kw Power factor cos.99 φ 87 Activation type Direct Nominal speed n 29 rpm 29 No. of poles 2 Insulation class B Recommended switching frequency 2 1/h Max. switching frequency 5 1/h Permitted voltage tolerance ±1 % Cable Length of connecting cable Cable type 1 m H7RN-F Cable cross-section 3G1 mm 2 Type of connecting cable Mains plug Detachable Shock-proof Equipment/function Float switch Motor protection WSK Materials Static seal Impeller 1.31 [AISI3] Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-6 / 17
Data sheet: Wilo-Drain STS /8-A (1~23 V) Sealing on motor side Mechanical seal Carbon/ceramic Motor housing 1.31 Pump housing Pump shaft EN-GJL-25 1. [AISI316L] Information for order placements Make Wilo Art no. 265868 EAN number 16322869993 Price group PG7 Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-7 / 17
Data sheet: Wilo-Drain STS /8 (1~23 V) Pump curves Wilo-Drain STS - 5 Hz - No. of poles: 2 H [m] 12 Unit Max. delivery head H max 8. m 1 STS /1 ø = mm Max. volume flow Q max 15. m 3 /h 8 STS /8 Pressure connection R 1½ 6 Maximum operating pressure p max 2 bar Free ball passage mm 2 Operating mode (immersed) S1 2 8 6 12 1 1 16 18 Q [m³/h] Pump curves in accordance with ISO 996, Appendix A Operating mode (non-immersed) Max. immersion depth 5 m Dimension drawing Wilo-Drain STS /8 (1~23V) Protection class IP 68 Fluid temperature T +3... +35 C Weight approx. m 2. kg 81,6 Motor data Mains connection 1~23 V, 5 Hz Rated current I N 3.6 A Nominal motor power P 2.6 kw Rp 1½ 52,5 336 55 Power consumption P 1.8 kw Power factor cos.99 φ 87 Activation type Direct Nominal speed n 29 rpm 29 No. of poles 2 Insulation class B Recommended switching frequency 2 1/h Max. switching frequency 5 1/h Permitted voltage tolerance ±1 % Cable Length of connecting cable Cable type 1 m H7RN-F Cable cross-section 3G1 mm 2 Type of connecting cable Mains plug Detachable Shock-proof Equipment/function Float switch Motor protection WSK Materials Static seal Impeller 1.31 [AISI3] Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-8 / 17
Data sheet: Wilo-Drain STS /8 (1~23 V) Sealing on motor side Mechanical seal Carbon/ceramic Motor housing 1.31 Pump housing Pump shaft EN-GJL-25 1. [AISI316L] Information for order placements Make Wilo Art no. 265866 EAN number 16322869979 Price group PG7 Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-9 / 17
Data sheet: Wilo-Drain STS /1-A (1~23 V) Pump curves Wilo-Drain STS - 5 Hz - No. of poles: 2 H [m] 12 Unit Max. delivery head H max 1. m 1 STS /1 ø = mm Max. volume flow Q max 2. m 3 /h 8 STS /8 Pressure connection R 1½ 6 Maximum operating pressure p max 2 bar Free ball passage mm 2 Operating mode (immersed) S1 2 8 6 12 1 1 16 18 Q [m³/h] Pump curves in accordance with ISO 996, Appendix A Operating mode (non-immersed) Max. immersion depth 5 m Dimension drawing Wilo-Drain STS /1-A (1~23V) Protection class IP 68 Fluid temperature T +3... +35 C Weight approx. m 2.2 kg 81,6 Motor data Mains connection 1~23 V, 5 Hz Rated current I N.5 A Nominal motor power P 2.75 kw Rp 1½ 51,5 3 59 Power consumption P 1 1. kw Power factor cos.97 φ 88 Activation type Direct Nominal speed n 29 rpm 25 No. of poles 2 Insulation class B Recommended switching frequency 2 1/h Max. switching frequency 5 1/h Permitted voltage tolerance ±1 % Cable Length of connecting cable Cable type 1 m H7RN-F Cable cross-section 3G1 mm 2 Type of connecting cable Mains plug Detachable Shock-proof Equipment/function Float switch Motor protection WSK Materials Static seal Impeller 1.31 [AISI3] Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-1 / 17
Data sheet: Wilo-Drain STS /1-A (1~23 V) Sealing on motor side Mechanical seal Carbon/ceramic Motor housing 1.31 Pump housing Pump shaft EN-GJL-25 1. [AISI316L] Information for order placements Make Wilo Art no. 26587 EAN number 1632287159 Price group PG7 Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-11 / 17
Data sheet: Wilo-Drain STS /1 (1~23 V) Pump curves Wilo-Drain STS - 5 Hz - No. of poles: 2 H [m] 12 Unit Max. delivery head H max 1. m 1 STS /1 ø = mm Max. volume flow Q max 2. m 3 /h 8 STS /8 Pressure connection R 1½ 6 Maximum operating pressure p max 2 bar Free ball passage mm 2 Operating mode (immersed) S1 2 8 6 12 1 1 16 18 Q [m³/h] Pump curves in accordance with ISO 996, Appendix A Operating mode (non-immersed) Max. immersion depth 5 m Dimension drawing Wilo-Drain STS /1 (1~23V) Protection class IP 68 Fluid temperature T +3... +35 C Weight approx. m 2. kg 81,6 Motor data Mains connection 1~23 V, 5 Hz Rated current I N.5 A Nominal motor power P 2.75 kw Rp 1½ 51,5 3 59 Power consumption P 1 1. kw Power factor cos.97 φ 88 Activation type Direct Nominal speed n 29 rpm 25 No. of poles 2 Insulation class B Recommended switching frequency 2 1/h Max. switching frequency 5 1/h Permitted voltage tolerance ±1 % Cable Length of connecting cable Cable type 1 m H7RN-F Cable cross-section 3G1 mm 2 Type of connecting cable Mains plug Detachable Shock-proof Equipment/function Float switch Motor protection WSK Materials Static seal Impeller 1.31 [AISI3] Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-12 / 17
Data sheet: Wilo-Drain STS /1 (1~23 V) Sealing on motor side Mechanical seal Carbon/ceramic Motor housing 1.31 Pump housing Pump shaft EN-GJL-25 1. [AISI316L] Information for order placements Make Wilo Art no. 265872 EAN number 163228736 Price group PG7 Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-13 / 17
Data sheet: Wilo-Drain STS /8 (3~ V) Pump curves Wilo-Drain STS - 5 Hz - No. of poles: 2 H [m] 12 Unit Max. delivery head H max 8. m 1 STS /1 ø = mm Max. volume flow Q max 15. m 3 /h 8 STS /8 Pressure connection R 1½ 6 Maximum operating pressure p max 2 bar Free ball passage mm 2 Operating mode (immersed) S1 2 8 6 12 1 1 16 18 Q [m³/h] Pump curves in accordance with ISO 996, Appendix A Operating mode (non-immersed) Max. immersion depth 5 m Dimension drawing Wilo-Drain STS /8 (3~V) Protection class IP 68 Fluid temperature T +3... +35 C Weight approx. m 2. kg 81,6 Motor data Mains connection 3~ V, 5 Hz Rated current I N 1.7 A Rp 1½ 52,5 336 55 Nominal motor power P 2.6 kw Power consumption P 1.8 kw Activation type Direct 87 Nominal speed n 29 rpm No. of poles 2 29 Insulation class Recommended switching frequency 2 1/h B Max. switching frequency 5 1/h Permitted voltage tolerance ±1 % Cable Length of connecting cable Cable type 1 m H7RN-F Cable cross-section G1 mm 2 Type of connecting cable Mains plug Detachable Equipment/function Float switch Motor protection WSK Materials Static seal Impeller Sealing on motor side 1.31 [AISI3] Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-1 / 17
Data sheet: Wilo-Drain STS /8 (3~ V) Mechanical seal Carbon/ceramic Motor housing 1.31 Pump housing Pump shaft EN-GJL-25 1. [AISI316L] Information for order placements Make Wilo Art no. 26587 EAN number 163228712 Price group PG7 Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-15 / 17
Data sheet: Wilo-Drain STS /1 (3~ V) Pump curves Wilo-Drain STS - 5 Hz - No. of poles: 2 H [m] 12 Unit Max. delivery head H max 1. m 1 STS /1 ø = mm Max. volume flow Q max 2. m 3 /h 8 STS /8 Pressure connection Rp 1½ 6 Maximum operating pressure p max 2 bar Free ball passage mm 2 Operating mode (immersed) S1 2 8 6 12 1 1 16 18 Q [m³/h] Pump curves in accordance with ISO 996, Appendix A Operating mode (non-immersed) Max. immersion depth 5 m Dimension drawing Wilo-Drain STS /1 (3~V) Protection class IP 68 Fluid temperature T +3... +35 C Weight approx. m 2. kg 81,6 Motor data Mains connection 3~ V, 5 Hz Rated current I N 2. A Rp 1½ 51,5 3 59 Nominal motor power P 2.75 kw Power consumption P 1.92 kw Activation type Direct 88 Nominal speed n 29 rpm No. of poles 2 25 Insulation class Recommended switching frequency 2 1/h B Max. switching frequency 5 1/h Permitted voltage tolerance ±1 % Cable Length of connecting cable Cable type 1 m H7RN-F Cable cross-section G1 mm 2 Type of connecting cable Mains plug Detachable Equipment/function Float switch Motor protection WSK Materials Static seal Impeller Sealing on motor side 1.31 [AISI3] Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-16 / 17
Data sheet: Wilo-Drain STS /1 (3~ V) Mechanical seal Carbon/ceramic Motor housing 1.31 Pump housing Pump shaft EN-GJL-25 1. [AISI316L] Information for order placements Make Wilo Art no. 265876 EAN number 1632287173 Price group PG7 Subject to change without prior notice. www.wilo.co.uk 5 Hz 215-17 / 17