Flygt NS 3085.092 255 SH 2.4kw 400v Hard Iron submersible waste water pump #4177

Flygt NS 3085.092 255 SH – 2.4kW Hard-Iron Submersible Waste Water Pump (400V)

The Flygt NS 3085 is a high-efficiency submersible pump designed for pumping clean water, surface water, and wastewater containing solids or long-fibered material. This version is the .092 explosion-proof Hard-Iron configuration, making it particularly suitable for duties involving abrasive or demanding media where increased wear resistance is required.

The Flygt N-impeller technology is engineered to maintain performance over time by reducing clogging and wear, making this model well suited to municipal and industrial drainage applications where continuous reliable operation is essential.

Flygt is a premium pump manufacturer and part of the Xylem Group, widely recognised for producing high-quality wastewater and drainage pumps used globally.

This pump is supplied as new, unused surplus stock and has not been installed. Minor cosmetic marks may be present from storage.

• .092 Explosion-proof Hard-Iron version (N-hydraulic)
• High-efficiency Flygt N-impeller design
• Suitable for long-fibered, solids-laden and abrasive wastewater
• Flygt square 4-bolt discharge outlet – compatible with DN80 flange fittings (supplied bare, accessories separate)
• Portable / semi-permanent wet well installation
• 2 year guarantee included

Need help confirming suitability?
Call us on 01803 220416 for technical advice.

Delivery & Shipping

• Next working day dispatch available (order before 4pm)
• Same-day courier available – please call for a quote
• UK and international delivery available
• International shipping costs confirmed after checkout

Series technical documentation:
This pump forms part of the Flygt 3085 N-technology range. Full technical details for the series, including installation types and motor classes, can be found in the manufacturer documentation:
View official Flygt 3085 specification sheet

Technical note – voltage: Voltage is shown as 400V in the listing for simplified search purposes. Typical motor configuration for this series is 400V Star / 230V Delta. Electrical connection must always follow the motor nameplate and be carried out by a qualified electrician in accordance with manufacturer instructions.

Frequently Asked Questions

What does the model number mean?

• N – Flygt high-efficiency non-clog adaptive impeller design
• S – Portable / semi-permanent wet well arrangement. The pump is supplied with the Flygt square 4-bolt outlet, to which a hose elbow or guide-rail claw can be fitted as required (supplied separately)
• 3085 – Pump model series
• .092 – Explosion-proof version. Technical clarification: .092 normally denotes an Ex configuration with grey cast iron on most series (e.g., D/F/G). On the N-hydraulic series only, .092 is supplied with a Hard-Iron™ impeller.
• 255 – Impeller specification
• SH – Motor / pressure class

How can this S version be installed?

The S configuration is intended for portable or semi-permanent wet well use. The pump is equipped with the Flygt 4-bolt square discharge connection. This outlet is not a factory DIN flange, however it is compatible with DN80 PN10 flange accessories. Connection can be made using a DN80 adaptor flange, hose elbow, or a guide-rail claw for fixed installations. Claws from Flygt or compatible third-party manufacturers can be used to suit an existing system. All hose tails, adaptors, and claws are supplied separately.

What is Hard-Iron and why is it used?

Hard-Iron™ is a high-alloy wear-resistant cast material used where the pumped liquid contains sand, grit, or other abrasive particles. Compared with standard grey cast iron, Hard-Iron provides significantly improved resistance to erosion, helping to extend impeller life and maintain hydraulic performance in demanding applications.

What is the Flygt N-impeller?

The N-impeller is a high-efficiency wastewater hydraulic developed to handle rags and long-fibered material while maintaining stable performance. Unlike conventional channel impellers that can lose efficiency as debris builds up, the N design aims to keep the flow paths clear so the pump continues to operate close to its original duty over time.

What does adaptive mean?

Adaptive refers to the impeller’s ability to move slightly along the shaft when bulky debris passes, temporarily increasing internal clearance. This allows difficult material to pass before the impeller returns to its normal position for efficient operation.

Why would I choose an Adaptive N pump?

It is designed to deliver the efficiency of a conventional wastewater impeller while offering clog resistance closer to that of a vortex hydraulic. The adaptive movement allows bulky rags and fibrous material to pass with less risk of blockage, without giving up the higher efficiency normally associated with channel designs.

Can this replace my existing Flygt pump?

In many cases, yes. If you provide your existing model number or duty point, we can confirm suitability before purchase.

Please send photos of your current discharge connection and installation arrangement and we can advise on the most practical way to connect this pump.

Do you offer technical support?

Yes — we provide free technical advice prior to purchase. Please call 01803 220416.

About Our Stock

We specialise in supplying new and unused surplus pumps, allowing us to offer premium equipment at highly competitive prices. All pumps are inspected prior to dispatch and supplied with guarantee.