Hose pump elements

NR Endurance hose

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Overview

Natural rubber (NR) Endurance hose elements

The hose element is critical to ensure pump performance, durability and efficiency. Bredel composite reinforced hoses are constructed from high-quality compounded rubbers reinforced with four individual layers of braided nylon, and finished by high-precision machining. Inner and outer layers are extruded and, after construction, machined to ensure critical tolerances are maintained. Outstanding abrasion resistance. Generally resistant to diluted acids and alcohols.

Perfect 100 % compression eliminates slippage which can destroy shear sensitive product and reduce metering accuracy.

Examples of compatible media:

Sludge with up to 85 % solids
Magnesium oxide and titanium dioxide
Water based paints, pigments
Food waste

Chemical Compatibility Guide

Features and benefits

Tight tolerances for low stress on bearings
Perfect compression for long life
Excellent suction performance – 9 m (30 ft) suction lift
High pressure capability – 16 bar (232 psi)
Repeatable volumetric accuracy to ± 1 %
Consistent capacity independent of varying suction and discharge conditions
Exceptional performance when handling high viscosity product
Max. fluid temperature: 80 ºC (176 ºF), Min. fluid temperature: -20 ºC (-4 ºF)

Technical summary

Max. operating pressure	16 bar
Max. operating pressure	232 psi
Bore size	10 - 100 mm
Bore size	0.39 - 3.94 in
Wall thickness	8.5 - 22 mm
Wall thickness	0.337 - 0.866 in

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

Specifications

Technical specifications

	10 mm	15 mm	20 mm	25 mm	32 mm	40 mm	50 mm	65 mm	80 mm	100 mm
Max. operating pressure	12 bar	12 bar	10 bar	16 bar	16 bar	16 bar	16 bar	16 bar	16 bar	16 bar
Max. operating pressure	174 psi	174 psi	145 psi	232 psi	232 psi	232 psi	232 psi	232 psi	232 psi	232 psi
Suction pressure	0.05 bar abs	0.05 bar abs	0.05 bar abs	0.05 bar abs	0.05 bar abs	0.05 bar abs	0.1 bar abs	0.3 bar abs	0.5 bar abs	0.7 bar abs
Suction pressure	1 psi abs	1 psi abs	1 psi abs	1 psi abs	1 psi abs	1 psi abs	1 psi abs	4 psi abs	7 psi abs	10 psi abs
Operating temperature range	-20到45°C	-20到45°C	-20到45°C	-20到45°C	-20到45°C	-20到45°C	-20到45°C	-20到45°C	-20到45°C	-20到45°C
Operating temperature range	-4 to 113 °F	-4 to 113 °F	-4 to 113 °F	-4 to 113 °F	-4 to 113 °F	-4 to 113 °F	-4 to 113 °F	-4 to 113 °F	-4 to 113 °F	-4 to 113 °F
Fluid temperature range	-20 to 80 °C	-20 to 80 °C	-20 to 80 °C	-20 to 80 °C	-20 to 80 °C	-20 to 80 °C	-20 to 80 °C	-20 to 80 °C	-20 to 80 °C	-20 to 80 °C
Fluid temperature range	-4 to 176 °F	-4 to 176 °F	-4 to 176 °F	-4 to 176 °F	-4 to 176 °F	-4 to 176 °F	-4 to 176 °F	-4 to 176 °F	-4 to 176 °F	-4 to 176 °F
Bore size	10 mm	15 mm	20 mm	25 mm	32 mm	40 mm	50 mm	65 mm	80 mm	100 mm
Bore size	0.39 in	0.59 in	0.79 in	0.98 in	1.26 in	1.57 in	1.97 in	2.56 in	3.15	3.94 in
Wall thickness	10.5 mm	10.5 mm	8.5 mm	14.1 mm	14.5 mm	13.2 mm	15 mm	17.1 mm	21 mm	22 mm
Wall thickness	0.413 in	0.413 in	0.337 in	0.555	0.571 in	0.52 in	0.591 in	0.673 in	0.827 in	0.866 in
Length	20.1 in	29.7 in	29.7 in	39.9 in	49.2 in	58.7 in	71.7 in	91.1 in	109.4 in	129.1 in
Weight	0.4 kg	0.8 kg	0.6 kg	2 kg	3 kg	3.5 kg	6 kg	12 kg	21 kg	30 kg
Weight	0.88 lbs	1.76 lbs	1.32 lbs	4.41 lbs	6.61 lbs	7.72 lbs	13.23 lbs	26.46 lbs	46.3 lbs	66.14 lbs

Your local Bredel sales office/distributor can advise the right hose for your application. For best pump performance use Bredel Genuine Hose Lubricant (NSF Non food Compound Program Listed, category H1)