遠心ポンプ Rexa SUPRA

排水用砂用電動

Information

• Transport sewage efficiently and economically. Ready for networking in digital wastewater management with Wilo-DDI.
• Non-clog and low-vibration hydraulics design ensures a high level of operational reliability.
• High hydraulic efficiency and optional IE3 motor technology (based on IEC 60034-30-1) reduce operating costs.
• Extensive configuration options guarantee customised solutions.
• Ceram coatings available for long service life in abrasive and corrosive fluids.
• Simple integration into system control and monitoring with the optional Wilo-DDI: Easy connectivity via Ethernet interface; integration using standard protocols; remote monitoring and digital tools (rating plate, maintenance logbook, user manual).

Series description
“Whether untreated or pre-treated sewage – the submersible pumps of the Wilo-Rexa SUPRA series have been developed for the various requirements in modern sewage pumping. Vortex, single-channel or multi-channel impeller, the Wilo-Rexa SUPRA always provides a combination of clogging resistance and energy efficiency. As such, the Rexa SUPRA is ideal for safe and economical sewage transport. In combination with the optionally available IE3 motors (in accordance with IEC 60034-30-1), the Wilo-Rexa SUPRA also reduces operating costs. The Wilo-DDI can be integrated to meet the requirements of digital connectivity. The Wilo-Rexa SUPRA thus offers all the features of modern communication connectivity and makes everyday work really easy.”

Design
This submersible pump is designed for stationary and portable wet and stationary dry installations. The motors are designed for continuous duty.

Liquids (applications)
For pumping in commercial areas of:

• Untreated sewage
• Sewage containing faeces
• Process sewage
• Wastewater (with small amounts of sand and gravel)

Equipment / Functions

• Heavy-duty cast iron design.
• Sealing chamber to collect any leakage from the mechanical seal on the fluid side.
• Leakage chamber to collect any leakage from the mechanical seal on the motor side (motor dependent).
• Motor dependent monitoring devices: winding temperature (bimetallic or PTC), leakage detection for sealing chamber, leakage chamber, and motor/terminal compartment.

Type key (example and explanation)
Example: Wilo-Rexa SUPRA-M30-418A + T 34-6/50KEx-E3
Hydraulics: Rexa SUPRA-M30-418A
Rexa = Submersible sewage pump
SUPRA = Series
M = Impeller type: V = vortex, C = single-channel, M = multi-channel
30 = Nominal diameter of discharge port (e.g. DN 300)
41 = Performance indicator
8 = Characteristic curve number
A = Material version: Standard version
Motor: T 34-6/50KEx-E3
T = Motor design: T = surface-cooled motor; FK/FKT = self-cooling with active cooling; HC = self-cooling hermetically separated cooling
34 = Size
6 = Number of poles
50 x10 = package length in mm
K = Seal version: H = rotary shaft seal/mechanical seal; G = two separate mechanical seals; K = block seal cartridge with two mechanical seals
Ex = Ex approval in accordance with ATEX or FM
E3 = Motor efficiency class (E3 = IE3 Premium Efficiency, E4 = IE4 Super Premium Efficiency)

Hydraulics / Construction notes
Discharge port with a horizontal flange connection. Maximum dry solids content: 8% for vortex, single-channel, and two-channel impellers; 5% for three-channel and four-channel impellers. Available impeller types: vortex, single-channel, multi-channel.

Motors (overview)

• T motor: Surface-cooled submersible motor without cooling system for wet installation. Motor housing transmits waste heat to the fluid. Permanently lubricated rolling bearings. Power cable longitudinally watertight; bare cable ends. Depending on size, may be installed dry and operate in short-time duty.
• FK motor: Self-cooling submersible motor with active cooling system for wet and dry installation. Cooling system filled with white medical grade oil; impeller on motor shaft circulates coolant; cooling flange transmits heat to pumped fluid.
• FKT motor: Self-cooling with closed cooling circuit; coolant mixture of water and glycol; impeller driven by motor shaft circulates coolant; built-in pressure relief valve limits max operating pressure to 3 bar.
• HC motor: Self-cooling with hermetically sealed closed cooling circuit; magnetically driven impeller circulates coolant; built-in pressure relief valve limits max operating pressure to 3 bar.

Seals
All motors have a sealing chamber collecting leakage from the fluid side mechanical seal. Seal designs (motor dependent): Design H (mechanical seal fluid side + rotary shaft seal motor side), Design G (two independent mechanical seals), Design K (block seal cartridge with two independent mechanical seals).

Operating fluids (coolants and oils)
All operating fluids are potentially biodegradable and not dangerous to the environment: white medical grade oil; water–glycol mixture (35% glycol / 65% water).

Delivery scope

• Pump
• Fitted accessories as ordered
• Installation and operating instructions

Options

• Special voltages
• Pumping fluids up to 60 °C
• Motor dependent monitoring devices: PTC winding temperature upgrade, sealing chamber and motor/terminal compartment leakage monitoring, motor bearing temperature, vibration monitoring
• Ceram coating for abrasive and corrosive fluids
• Digital Data Interface (Wilo-DDI) for easy integration: Ethernet connectivity; ModBus/TCP or OPC UA; remote monitoring and digital tools
• Ex-rated according to ATEX / FM / IECEx (where applicable)

Caractéristiques / spécifications techniques

• Mains connection: 3~400 V, 50 Hz
• Immersed operating mode: continuous duty (S1)
• Non-immersed operating mode: T motor S2-15 or S2-30 depending on size; FK/FKT/HC motors S1
• IP rating: IP68 (permanently immersed)
• Insulation class: H
• Fluid temperature range: 3 … 40 °C (standard) — optional up to 60 °C
• Max. immersion depth: 20 m
• Hydraulic housing / impeller / motor housing materials: EN-GJL-250 or EN-GJS-500-7
• Shaft: Stainless steel 1.4021 (AISI 420)
• Seals: static NBR; fluid side SiC/SiC; motor side SiC/SiC or C/Cr (motor dependent)
• Maximum dry solids content: up to 8% (depending on impeller type)
• Available impeller types: Vortex (V), Single-channel (C), Multi-channel (M)
• Optional motor efficiency classes: IE3 (E3) and IE4 (E4) per IEC 60034-30