What is the difference between WROX Series 1, 2, 4, and 8?

The series number indicates the nominal flow capacity in m³/h. Series 1 pumps are rated for 1 m³/h, Series 2 for 2 m³/h, Series 4 for 4 m³/h, and Series 8 for 8 m³/h. Within each series, variants with different impeller counts provide varying head capacities up to 230 m.

Can the Wilo WROX handle hot water applications?

Yes. With EPDM seals, the pump operates from -15°C to 120°C, making it suitable for boiler feed, hot water circulation, and condensate handling. For applications involving certain chemicals or oils, Viton seals (0°C to 90°C) are recommended.

What seal configuration should I select for RO plant applications?

For standard RO applications with treated water, the SiC/Carbon seal with EPDM O-ring is typically sufficient. For aggressive fluids or higher chemical resistance requirements, opt for the SiC/SiC seal with Viton O-ring.

Is the Wilo WROX suitable for food and pharmaceutical industries?

The SS316L variant (material code 2) with all stainless steel wetted parts is suitable for dairy, pharmaceutical, and food processing applications where corrosion resistance and fluid purity are critical.

What are the motor voltage and frequency requirements?

The WROX is supplied with 3-phase motors rated for 415V, 50Hz with a permitted voltage tolerance of ±10%. IE3 efficiency class motors are standard across the range.

WILO MATHER & PLATT · PUMPS

Wilo WROX Vertical Inline Multistage Pump – High Pressure Stainless Steel Pump for Industrial Applications

Name: Wilo WROX Vertical Inline Multistage Pump – High Pressure Stainless Steel Pump for Industrial Applications
Brand: Wilo Mather & Platt

Wilo WROX vertical inline multistage pump - stainless steel, PN25, up to 230m head. Ideal for boiler feed, RO systems, industrial circulation. Buy from PC

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Overview

The Wilo WROX is a non-self-priming vertical inline multistage pump designed for high-pressure industrial applications. Manufactured by Wilo Mather and Platt Pumps Pvt. Ltd. in India, this pump series delivers reliable performance for demanding fluid transfer operations in manufacturing plants, process industries, and commercial installations.

All wetted components are constructed from stainless steel (AISI 304 or AISI 316L), making the WROX suitable for potable water, process water, condensate, and water-glycol mixtures. The inline design with PN25 round flanges allows for straightforward installation in vertical pipework configurations, reducing footprint and simplifying maintenance access.

The WROX series is available in multiple flow and head configurations (1, 2, 4, and 8 m³/h nominal flow variants) with varying impeller stages to match specific system requirements. IEC standard motors with IE3 efficiency ratings ensure energy-efficient operation across a wide temperature range.

Key Features

All-stainless steel wetted parts – AISI 304 or AISI 316L construction for corrosion resistance
Vertical inline design – Compact footprint, easy integration into existing pipework
PN25 round flange connections – Standard industrial pressure rating
Wide temperature range – Operates from -15°C to 120°C (EPDM seal) or 0°C to 90°C (Viton seal)
IEC standard IE3 motors – High efficiency, 415V/50Hz, 3-phase supply
Multiple seal options – SiC/Carbon + EPDM or SiC/SiC + Viton configurations
IP55 protection class – Suitable for industrial environments
CE certified – Manufactured under ISO 9001, ISO 14001, and OHSAS 18001 standards

Specifications

Parameter	Value
Pump Type	Non-self-priming vertical inline multistage
Nominal Flow Range	1, 2, 4, 8 m³/h (series dependent)
Maximum Delivery Head	Up to 230 m
Fluid Temperature	-15°C to 120°C (EPDM) / 0°C to 90°C (Viton)
Maximum Operating Pressure	25 bar
Maximum Inlet Pressure	10 bar
Flange Rating	PN25
Nominal Speed	2950 RPM (2-pole, 50Hz)
Mains Connection	3~ 415V, 50Hz (±10% tolerance)
Motor Insulation Class	F
Protection Class	IP55
Motor Efficiency	IE3
Impeller Material	SS304 / SS316L
Pump Shaft Material	SS304 / SS316L
Pump Casing	Cast Iron (EN-GJL-250) / SS316L
Mechanical Seal	EPDM or Viton O-ring
Pipe Connections (Suction)	DN25 (Series 1, 2, 4), DN40 (Series 8)
Motor Power Range	0.37 kW to 7.50 kW

Applications

The Wilo WROX pump series is engineered for a broad range of industrial and commercial applications:

- Boiler feed systems – High-pressure water supply to steam boilers - Reverse osmosis plants – Domestic and industrial RO system pressurization - Industrial circulation systems – Process water and cooling water circuits - Dust separation systems – Water supply for wet scrubbers and dust suppression - Washing equipment – Industrial washing machines, car wash systems, rail coach cleaning - Process engineering – General fluid transfer in pharmaceutical, dairy, and manufacturing plants - Chiller systems – Chilled water circulation in HVAC applications

Approved Fluids: Potable water, heating water, process water, condensate, water-glycol mixtures (up to 40%), and other low-viscosity fluids without abrasive or long-fibre constituents.

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