Flygt NX 3171 HT 18.5kW ATEX Submersible Pump

In stock

Established 1975
Trusted by thousands of customers

The Flygt NX 3171 HT is a 18.5 kW submersible pump from the 3000-series X-type range, supplied here in the ATEX Ex-rated build with the ie3 premium-efficiency motor. The X-type has drilled mounting flanges and no predetermined mechanical connection, so it adapts to wet-well or dry-well installation (a cooling jacket is fitted for dry-well duty).

18.5 kW

Motor rating

Hydraulic family

451

Impeller

Version

Full Description

More about this product

Full Description

Overview

This listing is the Flygt NX 3171 HT rated at 18.5 kW on a 3-phase supply, built with the ie3 premium-efficiency motor. The N-hydraulic keeps the impeller clear of rag and solids for sustained efficiency on wastewater and effluent duties. The IE3 premium-efficiency motor lowers running cost over the pump life.

Specification

Range	Flygt NX 3000-series (X-type, drilled-flange)
Frame size	3171
Hydraulic family	HT (high head)
Motor rating	18.5 kW
Phase	3-phase
Impeller	451 – 455
Power cable	7G2.5+2×1.5
Motor efficiency	IE3 premium efficiency
Impeller / insert ring	Standard cast iron
Hydraulic	N-hydraulic (self-cleaning)
Version	ATEX Ex-rated
Installation	Drilled-flange – wet-well or dry-well (cooling jacket for dry-well)

Where it fits

Flexible installation

Drilled flanges and no predetermined mechanical connection let the same pump suit wet-well or dry-well layouts.

Dry-well ready

Fit the matching cooling jacket for continuous dry-well running or use with a variable-speed drive.

Clog-free handling

Self-cleaning N-hydraulic maintains its duty point and resists blockages in solids-laden flows.

Frequently asked questions

Is this the ATEX Ex-rated version?

Yes – this listing is the ATEX Ex build for installations classified as a potentially explosive atmosphere. A standard (non-Ex) build is also available.

Can it be used in a dry-well installation?

Yes. The X-type is designed for both wet-well and dry-well use; for dry-well duty a cooling jacket must be fitted.

Does it include leakage sensing?

Yes – NX 3153/3171/3202/3301 units include FLS leakage sensing as standard. It can be left disconnected if not required, with no change to the pump.

Which impeller / curve does this use?

Impeller 451 – 455. The hydraulic family (HT) and impeller code together fix the duty point; ask for a sizing check if you are unsure which curve matches your flow and head.

All units 3~ unless stated. Standard cable length as specified; longer cable to order. Image for illustration.

Delivery Information

Standard delivery:
Standard delivery is free on most orders. Some items may incur a delivery charge depending on weight, size or value. Any applicable charge will be displayed at checkout.

Deliveries will typically be made between 7am and 6pm, Monday to Friday (excluding public holidays).

Next day delivery:
Next working day delivery is available for a £16.50 + VAT delivery charge.

Orders must be placed before 12 noon to qualify for next working day delivery. Orders placed after 12 noon on Thursday but before noon on Friday will be delivered the following Monday. Orders placed after 12 noon on Friday will be delivered on Tuesday.

Pallet/Large/Difficult items:
Some large, heavy or difficult to transport items may incur an additional delivery charge. Please contact us for a delivery quote before ordering.

More about this product

Overview

Specification

Where it fits

Frequently asked questions

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