Pumps - hose pumps

Bredel QLINE

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Overview

Bredel QLINE

Bredel QLINE redefines low-pulsation pumping, delivering consistency and control.

Combining Bredel’s heavy-duty pump expertise with Watson-Marlow’s tube technology, QLINE delivers higher flow rates and low-pulsation in a compact in-line design.

Its smoother flow provides improved dosing accuracy and repeatability, enhancing real-time flow measurement.

The first product in the range, QLINE 20, uses TPU and Santoprene tube elements. With chemically resistant tubing and wide flow range capability, QLINE 20 is suitable for a variety of abrasive and challenging applications, such as mining reagents, ink and lime.

Features and benefits

Higher, smoother flow without increasing installation space
Minimised pulsation improves dosing accuracy and process stability
Quick in-situ tube replacement increases uptime and supports safer maintenance
Reduced pressure fluctuations help extend equipment lifetime and lower maintenance costs
Built for long service life when handling abrasive, viscous, corrosive, and gaseous fluids
Broad chemical compatibility and high turndown capability support a wide range of applications
Consistent fluid velocity helps reduce product settlement and minimise pipeline disruption

Technical summary

Max. flow rate continuous	1600 L/h
Max. flow rate continuous	422 USGPH
Volume per revolution	0.139 L
Max. continuous operating speed	180 rpm
Max. operating pressure	7 bar
Max. operating pressure	100 psi
Min. starting torque	120 N m
Min. starting torque	1062 in.lbs
Weight	51.5 kg

Technical Summary table lists features available within the range. See ‘Technical specifications’ tab for model specific information.

Performance

QLINE 20 performance

Specifications

Technical specifications

	QLINE 20
Max. flow rate continuous	422 USGPH (1600 L/h)
Max. flow rate intermittent	554 USGPH (2100 L/h)
Volume per revolution	0.0362 USG (0.139 L)
Max. continuous operating speed	180 rpm
Max. intermittent operating speed	250 rpm
Max. operating pressure	100 psi (7 bar)
Suction pressure	0.1 bar abs
Suction pressure	1.5 psi abs
Max. inlet pressure	30 psi abs (2 bar abs)
Max. suction capability	354 inWC (9 mWC)
Operating temperature	14 °F to 122 °F (-10 °C to 50 °C)
Fluid temperature	32 °F to 133 °F (0 °C to 45 °C)
Min. starting torque	1062 in.lbs (120 N m)
Weight	112 lbs (51.5 kg)
Hose lubricant required	0.26 USG (1 L)
Inlet/outlet Connections	BSP 3/4", Flanges ANSI, Flanges DIN, Hose tail, NPT 3/4"
Pumping direction	Clockwise, Counterclockwise
Compatible tube materials	Santoprene, TPU

Please consult your Bredel representative for lower or higher temperature operation. Allowable ambient temperature is based on pump capabilities and may be further limited by gearbox ambient capabilities.

QLINE 20 dimensions

Type	A	B	C	D	E	F	G	H	H1	H2 max	I	J	K	Lmax	L1	L2max	ØP
QLINE 20 (mm)	398.0	364.5	343.7	75.0	354.5	102.0	29.0	373.0	187.6	326.4	40.0	190.0	26.6	652.5	74.0	476.5	10.0
QLINE 20 (inches)	15.7	14.4	13.5	3.0	14.0	4.0	1.1	14.7	7.4	12.9	1.6	7.5	1.0	25.7	2.9	18.8	0.4

Materials of construction

	QLINE 20
Housing	Cast iron, ISO12944 category C4M
Rotor assembly	Cast iron with Nitrox surface treatment
Cover assembly	Cast iron, ISO12944 category C4M
Fasteners	Galvanized steel, Stainless steel 316
Support frame	Galvanized steel, Stainless steel 316
Coupling bush	Alloy steel
Seals	EPDM