Hose pump elements

NR Metering hose

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Overview

Natural rubber (NR) Metering hose elements

Manufactured for high consistency and repeatability. Suitable for fluid metering and heavy duty applications. Outstanding abrasion resistance from extruded inner layer. Machined surface finish to dimension. Maximised pumphead life by low stress on bearings.

Examples of compatible media:

Slurries and sludges with up to 80 % solids
Magnesium oxide and titanium dioxide
Water-based paints and pigments

Chemical Compatibility Guide

Features and benefits

Manufactured for high consistency and repeatability
Consistent capacity over the full hose life, independent of varying suction and discharge conditions
Outstanding abrasion resistance from extruded inner layer
Precision machined to ensure critical tolerances are maintained
Pressure capability up to 16 bar (232 psi)
Suction capability up to 9.5 mWC (374 inWC)
Max. fluid temperature: 80 °C (176 °F), Min. fluid temperature: -20 °C (-4 °F)

Technical summary

Max. operating pressure	16 bar
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 ‘Technical specifications’ tab for model specific information.

Specifications

Technical specifications

	10 mm
Max. operating pressure	12 bar	10 bar
		12 bar
		16 bar
Max. operating pressure	174 psi	145 psi
		174 psi
		232 psi
	9.5	7
		9
		9.5
	374	276
		354
		374
	9.5	5
		7
		8
		9
		9.5
	374	197
		276
		315
		354
		374
Operating temperature range	-20 to 45 °C	-20 to 45 °C
Operating temperature range	-4 to 113 °F	-4 to 113 °F
Fluid temperature range	-20 to 80 °C	-20 to 80 °C
Fluid temperature range	-4 to 176 °F	-4 to 176 °F
Bore size	10 mm	100 mm
		15 mm
		20 mm
		25 mm
		32 mm
		40 mm
		50 mm
		65 mm
		80 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 in
		3.94 in
Wall thickness	10.5 mm	10.5 mm
		13.2 mm
		14.1 mm
		14.5 mm
		15 mm
		17.1 mm
		21 mm
		22 mm
		8.5 mm
Wall thickness	0.413 in	0.337 in
		0.413 in
		0.52 in
		0.555 in
		0.571 in
		0.591 in
		0.673 in
		0.827 in
		0.866 in
Length	0.51 m	0.75 m
		1.01 m
		1.25 m
		1.49 m
		1.82 m
		2.31 m
		2.78 m
		3.28 m
Length	20.1 in	109.4 in
		129.1 in
		29.7 in
		39.9 in
		49.2 in
		58.7 in
		71.7 in
		91.1 in
Weight	0.4 kg	0.6 kg
		0.8 kg
		12 kg
		2 kg
		21 kg
		3 kg
		3.5 kg
		30 kg
		6 kg
Weight	0.88 lbs	1.32 lbs
		1.76 lbs
		13.23 lbs
		26.46 lbs
		4.41 lbs
		46.3 lbs
		6.61 lbs
		66.14 lbs
		7.72 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)