Flygt CF 3057.091 262 HT 1.7kW DN50 415v submersible waste water pump #2402

Flygt CF 3057.091 262 HT – 1.7kW DN50 (2") Submersible Wastewater Pump (3~) #2402

The Flygt 3057 is a compact submersible pump designed for pumping clean water, surface water and waste water containing solids or fibred material. This model is part of the Flygt C-pump range using a channel-impeller hydraulic, widely used in municipal and industrial installations where dependable operation and solids handling are required.

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

• Flygt C-type hydraulic (channel / single-vane style) for wastewater pumping
• F installation – free-standing semi-permanent wet well arrangement on a firm surface
• Supplied with hose tail discharge connection (DN50 / 2")
• .091 designation – explosion-proof version
• HT motor class – high head configuration
• Motor rated power: 1.7 kW (3-phase)
• Supplied with 2 year guarantee

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

Quick “Which should I pick?” cheat sheet

• Choose C-type (this pump) when you want good efficiency and reliable solids handling for wastewater and surface water duties, and you are not dealing with extreme ragging conditions.
• Choose Vortex when the duty is primarily about maximum solids tolerance and passage, and you can accept the normal efficiency trade-off.
• Choose Flygt N / Adaptive N when modern ragging sewage is the main problem and you want a hydraulic designed to maintain performance over time and reduce call-outs.

Installation Arrangement

This pump is configured in F-type installation: a free-standing semi-permanent wet well arrangement where the pump is placed on a firm surface. The discharge is connected via hose or adaptor; this unit is supplied with a hose tail connection.

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

Manufacturer specification:
Full technical details can be found in the manufacturer’s documentation:
View official Flygt 3057 technical specification (PDF)

Technical note – voltage:
Voltage is shown as 415V in the listing for simplified search purposes. The motor nameplate configuration for this pump 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.

Explosion-proof note:
This pump is the explosion-proof version as designated by Flygt (3057.091). Please confirm required hazardous-area approvals for your specific site before installation.

Frequently Asked Questions

What does the model number mean?

• CF – Flygt C-pump range with channel-impeller hydraulic
• 3057 – Pump model series
• .091 – Explosion-proof version
• HT – High head pressure class
• 262 – Impeller / curve code
• 1.7 kW (3~) – Motor rated power and three-phase supply
• DN50 (2") – Discharge size, supplied with hose tail

What applications is this pump suitable for?

Suitable for pumping clean water, surface water and waste water containing solids or fibred material. Typical uses include drainage, site water, industrial sumps, sludge transfer and general wastewater wet-well duties.

What is a C-type impeller?

The Flygt C-pump range uses a channel-impeller hydraulic. On the 3057 this is a shrouded single-vane style impeller with large passage, designed for wastewater duties and good solids handling while maintaining strong hydraulic performance.

Why would I choose a C-type instead of a vortex impeller?

Vortex pumps are selected when maximum solids tolerance is the priority. A C-type is chosen when you want more conventional pumping action with strong duty performance and solids handling.

Why would I choose a C-type instead of Flygt N-type?

C-type hydraulics are typically selected when the duty is predictable and not dominated by modern ragging sewage. They offer conventional centrifugal behaviour with good efficiency at a defined duty point and simple, familiar construction.

Flygt N-type is aimed at sites where wipes and long fibres cause gradual performance loss and blockages. If your station historically runs well on channel impellers, C-type is often the more appropriate and economical choice.

What’s the difference between vortex, C-type and “non-clog”?

• Vortex – prioritises solids passage; efficiency trade-offs are common.
• C-type – conventional hydraulic with good efficiency and solids handling.
• “Non-clog” – broad term, often used for channel/single-vane solids-handling designs.

Can this replace my existing Flygt pump?

In many cases, yes. Please send your model number and photos of your installation and we can advise.

Do you offer technical support?

Yes — call 01803 220416.

About Our Stock

We supply new and unused surplus pumps inspected prior to dispatch and supplied with guarantee.