Submersible Stainless Steel Pumps BQ Series

The BQ series refers to a type of submersible pump that is made from stainless steel. These pumps are designed to be used underwater, and are particularly well-suited to applications that require resistance to corrosion and other types of wear and tear.

All of the wetted parts of the BQ series pump are made from stainless steel. This means that they are resistant to corrosion and other types of damage that can be caused by exposure to water over time. As a result, these pumps are able to provide reliable performance over a long service life.

The BQ series pump also features a single-channel, solid handling impeller. This impeller is designed to be able to handle solid particles that may be present in the water being pumped, which can help to prevent clogging and other types of damage to the pump.

Finally, the BQ series pump is available in a guide rail fitting model. This means that it can be easily installed and removed from the water source using a set of rails that are attached to the pump. This makes it a convenient choice for use in applications where frequent removal and reinstallation of the pump is required.

CQ series

APPLICATIONS

• Draining wastewater from chemical plant, plastic plant, etc.
• Draining effluent from hospital and laboratory, etc.

FEATURES

All Wetted Parts Made of Stainless Steel
As parts of popular B-series, Tsurumi has come up with BQ-series made of stainless steel casting (SCS13). The shaft, bolts and nuts are made of 304 stainless steel (SUS304) or 316 stainless steel (SUS316). It is suitable for pumping wastewater containing solids and corrosive substances.

Single-channel, Solid Handling Impeller
The widely opened volute casing and a single-channel impeller allow the pump to pass the solid matters from inflow to discharge with minimal blockage.

Guide Rail Fitting Model Available
The BQ-series is available with guide rail fittings. Guide rail fitting accessories are made of stainless steel casting (SCS13) or 304 stainless steel (SUS304). Pumps in this series have a ‘TOS’ identifier on top of their model codes.

SUBMERSIBLE STAINLESS STEEL PUMPS DESIGN

PERFORMANCE CURVES

DIMENSIONS

STANDARD SPECIFICATIONS 50/60Hz

Curve
No.
Discharge
Bore
mm
Free
Standing
Model
Guide
Rail Fitting
Model
Motor
Output
kW
Phase Speed
(S.S.
)min -1
Starting
Method
Solids
Passage
mm
Cable
Lengthm
Cable
Code
Dimensions L ×H (mm) Dry Weight** (kg)
Free
Standing
Guide
Rail Fitting
Free
Standing
Guide
Rail Fitting
1 50 50BQ2.4 TOS50BQ2.4 0.4 Three 3000/3600 D.O.L. 19/17 6 A 340 ×450 556 ×508 25 24
2 50 50BQ2.75 TOS50BQ2.75 0.75 Three 3000/3600 D.O.L. 20/24 6 A 410 ×506 625 ×546 40 39
3 50 50BQ2.75H TOS50BQ2.75H 0.75 Three 3000/3600 D.O.L. 20 6 A 409 ×483 625 ×527 40 39
4 80 80BQ21.5 TOS80BQ21.5 1.5 Three 3000/3600 D.O.L. 25 6 A 424 ×558 646 ×608 50 48
5 100 100BQ42.2 TOS100BQ42.2 2.2 Three 1500/1800 D.O.L. 40 6 C 602 ×652 821 ×693 93 86
6 100 100BQ43.7 TOS100BQ43.7 3.7 Three 1500/1800 D.O.L. 53/45 6 C(E*) 602 ×735 821 ×771 109 102
7 100 100BQ43.7H TOS100BQ43.7H 3.7 Three 1500/1800 D.O.L. 35 6 C(E*) 637 ×727 853 ×768 109 102

FLOAT SWITCHES

Model MC-2 is a heavy-duty type float switch with a shock absorber.
Having equipped with a high grade micro switch, the MC-2 assures trouble-free operation in the liquid containing much suspended solids and floating scum. Either of the two contacts, normally-open or normally-close, can be selected as required.

Model RF-5 is an economy type float which can detect upper/lower limit water levels with single float. The snap on-off action ensures stable operation in clean or waste water containing suspended solids or oil and fat.

GUIDE RAIL FITTING SYSTEM

The guide rail fitting system connects the pump to and from the piping easily just by lowering and hoisting the pump, allowing easy maintenance and inspection without the need to enter the sump.

When the SFQ, BQ or CQ series is ordered with guide rail fitting, the following accessories will come with the pump as standard equipment (Attach ‘TOS’ to its model code.)

· Lifting Chain 5m (with Shackles)
· Guide Support (with Bolts & Nuts)
· Guide Hook (with Bolts)
· Duckfoot Bend
· Guide Connector (with Bolts)
· JIS 10kg/cm 2 Flange (with Packing, Bolts & Nuts)

CABTYRE CABLE CODE REFERENCE

Single-Phase

Code No. of
Cables
Cores × mm2 Outer Dia.
mm
Material
a 1 3 × 1.25 10.1 PVC

Three-Phase

Code No. of
Cables
Cores × mm2 Outer Dia.
mm
Material
A 1 4 × 1.25 11.1 PVC
C 1 4 × 2.0 11.8
E 1 4 × 3.5 13.9
G 1 4 × 3.5 14.1 Chloroprene
Rubber
I 1 4 × 5.5 16.8
K 3 4 × 3.5 14.1
3 × 3.5 12.9
2 × 1.25 9.8

MATERIAL CONVERSION LIST

Material JIS ASTM/AISI DIN BS
Stainless Steel SUS304 304 X5 CrNi
18-10
304S31
SUS316 316 X5 CrNiMo
17-12-2
316S31
Stainless Steel
Casting
SCS13 CF 8 G-X6 CrNi
18-9
304C15
SCS14 CF 8M G-X6 CrNiMo
19-11-2
316C16