SRG.35.50 .257.27.5.1B
In the profluid store simply buy online - for larger orders or scale discounts please contact us for an individual offer.
The offer is exclusively for professionals.
Grundfos 98798032 SRG SRG.35.50 .257.27.5.1B
Product code: 98798032
EAN Number: 5712601511872
The Grundfos range of horizontal submersible SRG recirculation pumps is designed for pumping return sludge in wastewater treatment plants and other applications where large flow rates are required at a low head. The recirculation pumps are equipped with a gear-driven energy-efficient impeller.
The squirrel-cage induction motor is protected against overload by means of three bi-metallic thermal switches (PTO) in the motor windings.
The products are equipped with IE3 motor components.
To prevent ingress of the surrounding liquid, the SRG recirculation pumps have two radial FKM rubber lip seals in combination with a ceramic wear ring and a mechanical shaft seal made of silicon carbide/silicon carbide or tungsten carbide/tungsten carbide, depending on size.
The secondary seal between the gearbox and the motor is made of carbon/aluminium oxide.
The oil-filled gearbox is monitored for ingress of water by a leak sensor incorporated as standard. The sensor can trigger an alarm signal and/or switch off the motor by means of an external Grundfos relay, type ALR-20/A, supplied as an optional accessory.
The gearbox incorporates tapered roller bearings absorbing the axial force from the propeller.
Motors range from 0.8 to 24 kW.
A wide range of accessories made of stainless steel AISI 304/316 steel ensure easy installation and long trouble-free operation.
| Links to notes in other regional sites (our database) | {"n@grundfos@fr@48797":true,"n@grundfos@global@127242":true} | |
| Product information | EAN number | 5712601511872 |
| Product No | 98798032 | |
| Flow rate | Gear ratio | 5.600 |
| Max. propeller blade angel | 27 Grad | |
| Maximum flow | 464 l/s | |
| Maximum head | 0.55 m | |
| Min flow | 200 l/s | |
| Min. head | 0.1 m | |
| Number of propeller blades | 3 | |
| Primary shaft seal | 2X RADIAL LIP SEALS | |
| Propeller diameter | 500 mm | |
| Propeller speed | 257 1/min | |
| Rated head | 0.55 m | |
| Testing standard | ISO9906:2012 3B | |
| Electrical data | Cos phi - p.f. at 1/2 load | 0.71 |
| Cos phi - p.f. at 3/4 load | 0.82 | |
| Cos phi - power factor | 0.86 | |
| Enclosure class (IEC 34-5) | IP68 | |
| Ex-protection standard | NO PTO (THERMAL SWITCH) | |
| Explosion proof | N | |
| Insulation class (IEC 85) | H | |
| Length of power cable | 10 m | |
| Mains frequency | 50 Hz | |
| Max starts per hour | 20 | |
| Motor efficiency at 1/2 load | 87.6 % | |
| Motor efficiency at 3/4 load | 87.8 % | |
| Motor efficiency at full load | 87.0 % | |
| Number of poles | 4 | |
| Power cable type | S1BN8-F 11G1,5 | |
| Power input - P1 | 4 kW | |
| Power plug | No plug | |
| Rated current | 7 A | |
| Rated power - P2 | 3.5 kW | |
| Rated speed | 1450 1/min | |
| Rated voltage | 3 x 400-415 V | |
| Start. method | star/delta | |
| Starting current | 47 A | |
| Voltage tolerance | +6/-10 % | |
| Installation | Fits column profile tube, size | 60/60 mm |
| Maximum installation depth | 20 m | |
| Fluid | Density | 998.2 kg/m³ |
| Liquid temperature range | 5 .. 40 °C | |
| Selected liquid temperature | 20 °C | |
| pH-value range | 4-10 | |
| Materials | Flange | Stainless steel |
| Hub | AISI 1.4408 | |
| MATWNRFLA | DIN W.-Nr. 1.4306 | |
| Motor | Cast iron | |
| Motor | AISI EN-GJL-250 | |
| Paint thickness | 450 micrometre | |
| Propeller | 1.4408 | |
| Control | Moisture sensor | without moisture sensors |
| Water-in-oil sensor | with water-in-oil sensor | |
| Other information | Herkunftsland | |
| Net weight | 150 kg | |
| Zolltarif Nr. | 84798200 |