217 BQS Mining Flameproof Pump Models

BQS

Overview

BQS Mining Flameproof Submersible Sand Pump

The BQS family uses an integrated pump and motor in a bottom-suction arrangement for underground mine dewatering where water may carry sediment, sand or suspended solids.

A centrifugal impeller moves the medium through the pump. The current manual describes two mechanical seals together with O-rings for sealing.

Applications

  • Underground mine dewatering where the pumped water contains sediment, sand or suspended solids.
  • Drainage from mine sumps and working areas after the required flow, head, medium and installation conditions have been confirmed.

Working principle

The integrated motor drives a centrifugal impeller. Water enters through the bottom-suction opening and is discharged after the rotating impeller transfers energy to the medium.

The sealing arrangement described in the current manual combines two mechanical seals with O-rings.

Features

  • Integrated pump-and-motor construction with bottom suction.
  • Centrifugal impeller for mine-water transfer under the verified operating conditions.
  • Sealing arrangement documented as two mechanical seals plus O-rings.

Verified conditions

Liquid temperature
≤ 40 °C
Solids concentration
≤ 2% by volume
pH range
pH 4–10
Maximum immersion depth
≤ 5 m

Selection inputs

  • Required flow and total head at the duty point.
  • Medium description, solids concentration and expected sediment or sand content.
  • Supply voltage and frequency, required power, duty pattern and installation depth.
  • Exact model, nameplate data and the current certificate scope required for the project.

Verification before selection

Confirm the exact model, nameplate voltage and current certificate scope before selection. Do not allow dry running.

Frequently asked questions

What media is this BQS family page intended to cover?

It covers underground mine dewatering where the water may include sediment, sand or suspended solids, within the verified conditions for the selected model.

Can a BQS pump run without liquid?

No. The current manual requires liquid operation, so dry running must be prevented.

How should voltage and certificate coverage be checked?

Match the exact model and nameplate voltage to the current certificate scope for that model before selection or approval.

Filter BQS models

217 models shown

BQS10-28-3/N

Rated flow
10 m³/h
Rated head
28 m
Rated power
3 kW

BQS15-25-3/N

Rated flow
15 m³/h
Rated head
25 m
Rated power
3 kW

BQS30-15-3/N

Rated flow
30 m³/h
Rated head
15 m
Rated power
3 kW

BQS15-30-4/N

Rated flow
15 m³/h
Rated head
30 m
Rated power
4 kW

BQS20-25-4/N

Rated flow
20 m³/h
Rated head
25 m
Rated power
4 kW

BQS30-15-4/N

Rated flow
30 m³/h
Rated head
15 m
Rated power
4 kW

BQS50-15-4/N

Rated flow
50 m³/h
Rated head
15 m
Rated power
4 kW

BQS30-56-11/N

Rated flow
30 m³/h
Rated head
56 m
Rated power
11 kW

BQS50-40-11/N

Rated flow
50 m³/h
Rated head
40 m
Rated power
11 kW

BQS60-32-11/N

Rated flow
60 m³/h
Rated head
32 m
Rated power
11 kW

BQS80-25-11/N

Rated flow
80 m³/h
Rated head
25 m
Rated power
11 kW

BQS40-60-15/N

Rated flow
40 m³/h
Rated head
60 m
Rated power
15 kW

BQS50-60-15/N

Rated flow
50 m³/h
Rated head
60 m
Rated power
15 kW

BQS70-35-15/N

Rated flow
70 m³/h
Rated head
35 m
Rated power
15 kW

BQS40-80-22/N

Rated flow
40 m³/h
Rated head
80 m
Rated power
22 kW

BQS50-75-22/N

Rated flow
50 m³/h
Rated head
75 m
Rated power
22 kW

BQS60-70-22/N

Rated flow
60 m³/h
Rated head
70 m
Rated power
22 kW

BQS70-65-22/N

Rated flow
70 m³/h
Rated head
65 m
Rated power
22 kW

BQS80-45-22/N

Rated flow
80 m³/h
Rated head
45 m
Rated power
22 kW