Watson-Marlow NBR User Manual

NBR HOSES FOR FOOD CONTACT

User Guide

NBR hoses for food contact

Additional user information on food safety

Original Instructions

1

© 2014 Watson-Marlow Bredel B.V.

All rights reserved.
The information provided herein may not be reproduced and/or published in any form,
by print, photoprint, microfilm or any other means whatsoever (electronically or
mechanically) without the prior written authorisation of Watson-Marlow Bredel B.V.

The information provided can be changed without prior notification. Watson-Marlow
Bredel B.V. or one of its representatives cannot be held liable for possible damage
resulting from use of this manual. This is an extensive limitation of the liability which
applies to all damage, inclusive of (without limitation) compensating, direct, indirect or
consequential damage, loss of data, income or profit, loss or damage to possessions
and claims of third parties.

Watson-Marlow Bredel B.V. provides the information in this manual "as is" and does not
take any responsibility and does not give any guarantee on this manual or its content.
Watson-Marlow Bredel B.V. rejects all responsibilities and guarantees. Furthermore,
Watson-Marlow Bredel B.V. does not take responsibility for and does not guarantee that
the information in this manual is accurate, complete or up to date.

Names, trade names, brands, etc. used by Watson-Marlow Bredel B.V. may not, as per
the legislation concerning the protection of trade names, be considered as available.

2

CONTENTS

1 INTRODUCTION

1.1 How to use this manual .......................................................................... 4

1.2 Original instructions ................................................................................ 4

1.3 Objective of legislation on food contact materials ................................... 4

1.4 Materials for food contact ....................................................................... 5

1.4.1 Approved materials ..................................................................... 5

1.4.2 Migration testing .......................................................................... 5

1.5 The food hose ......................................................................................... 5

1.5.1 Hose identification ....................................................................... 6

1.5.2 Hose storage ............................................................................... 7

1.6 The lubricant ........................................................................................... 8

2 INSTALLATION AND OPERATION

2.1 Hose cleaning before first use ................................................................ 9

2.2 Hose installation and connection (EHEDG) ............................................ 9

2.3 Hose cleaning during hose use ............................................................ 12

2.4 End of life .............................................................................................. 13

2.5 Hose failure detection ........................................................................... 13

2.6 Hose disposal ....................................................................................... 13

3 DECLARATION OF CONFORMITY

3

INTRODUCTION

1 INTRODUCTION

1.1 How to use this manual

This manual is intended as an addition to the product
manual. With this manual qualified users are able to
install, commission and maintain hoses suitable for food
contact as mentioned on the front cover.

1.2 Original instructions

The original instructions for this manual have been
written in English. Other language versions of this
manual are a translation of the original instructions.

1.3 Objective of legislation on food contact
materials

In general all goods brought to market within the EU
must meet the applicable safety standards as laid down
in various EU legislation. For machinery this is the
Machine directive 2006/42/EC. It specifies that
materials that come into contact with food are cleanable
and do not affect the taste and smell of the food
product.
The requirements from this directive are met by
applying the EHEDG guidelines and by complying to
the European frame agreement, regulation (EC) No
1935/2004. The purpose of this regulation is to provide
the basis for securing a high level of protection of
human health and ensuring effective functioning of the
internal market dealing with materials and articles
intended to come into contact with food. The principal
goal of the European Hygienic Engineering & Design
Group (EHEDG) is similar but much more specific. It
promotes safe food by improving hygienic engineering
and design in all aspects of food manufacture. This is
done by providing guidelines that ensure products and
processes to be food safe.

4

Materials that can come into contact with food must be
listed as safe and it must be proven that migration of
material components remains within specified limits. For
rubber articles the frame agreement refers to the local
laws applicable.
These materials meet the requirements of the Dutch
and American food laws, Warenwet and FDA and the
recommendations of the German federal institute for
risk assessment BfR. The final product complies with:

• Warenwet, Regeling Verpakkingen en

Gebruiksartikelen, 2.2.1, Appendix A, Chapter 3
Rubber articles, category 3

• The Code of Federal Regulations Title 21,

Chapter 1, Part 177, Subpart C, Section

177.2600 of the FDA FDA 21CFR177.2600

• The Recommendations of the German Federal

Institute for Risk Assessment, BfR

Recommendation XXI, category 4.
The Bredel pumps are EHEDG certified, Type EL Class
1: for cleaned in-place equipment.

1.4 Materials for food contact

1.4.1 Approved materials

The materials used for the NBR inner layer are listed in
the positive lists under Warenwet A3 cat.3, FDA
21CFR177.2600, and BfR XXI, cat 4.

1.4.2 Migration testing

The migration tests have been done according the FDA
requirements for this product. The tests proved that the
migration remained within the specified limits.

INTRODUCTION

1.5 The food hose

The food hose has a white Nitrile Butadiene Rubber
inner layer surrounded by 2 or 4 reinforcement layers.
The reinforcement layers consist of nylon cord

5

INTRODUCTION

surrounded by natural rubber separation layers. The
reinforcement layers are covered by a natural rubber
outer layer.
The hoses are ground to a specific wall thickness with
very narrow tolerance to guarantee optimal hose
performance during operation.

A: Extruded outer-layer made of natural rubber.
B: Nylon reinforcement layers.
C: Extruded inner-liner made of nitrile rubber

(white).

CAUTION

The food product pumped should be
chemically compatible with the inner layer
of the hose. In case of doubt contact your
Bredel representative on what substances
are suitable to pump.

1.5.1 Hose identification

The product is identified by a unique production number
that is printed on the hose itself. This number offers full
traceability to the original materials used for producing
this hose.

A

B

C

6

A: Pump type

Bredel

for food
contact

Watson-Marlow Bredel B.V. Delden. Netherlands

Hose Pumps

High precision pump

element machined for

A

B

C

D

E

F

B: Reorder number
C: Internal diameter
D: Type of material of the inner layer
E: Maximum permitted working pressure
F: Product code

1.5.2 Hose storage

The maximum shelf life for this hose is 2 years.
Store the hose in a dark and dry place with
temperatures within 0°C (32°F) to 40°C (104°F).
If the pump is stored for longer time with the hose
installed, turn the rotor with one shoe (B) between the
ports and one shoe removed (A).
This option is only available for pumps with detachable
shoes (pumps with hose bore  25mm). Refer to the
pump manual for details.

INTRODUCTION

A B

7

INTRODUCTION

1.6 The lubricant

The contact area between hose and rotor is lubricated
to reduce friction and improve the hose life. The
lubricant is referred to as Bredel Genuine Hose
Lubricant and is registered at NSF International as an
acceptable lubricant with incidental food contact (H1)
for use in and around food processing areas
(registration number: 123204). The lubricant is non
toxic, food grade, and soluble in water.
The lubricant has a HMIS rating and liquid flammability
class IIIB, flash point greater than or equal to 200°F
(95°C). The Hazardous Materials Identification System
(HMIS) is a numerical hazard rating developed as a
compliance aid for the United States Occupational
Safety and Health Administration (OSHA).
On each container is a label with information about the
lubricant. The containers are available in various
volumes. On the US labels the HMIS rating is indicated.
Each label has the NSF mark with registration number.
A: Classification of liquid flammability, and HMIS

rating (US only).

B: Container volume.
C: Reorder number.

WARNING

Only use Bredel genuine hose lubricant.
The Bredel genuine hose lubricant is
specifically designed for the Bredel pumps
and hoses. Use of other lubricants can
increase the wear of the pump and hose
and decrease the efficiency of the pump.

Bredel

Hose Pumps

A

B

C

The Material Safety Data Sheet is
available on request via your Bredel
representative.

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2 INSTALLATION AND OPERATION

2.1 Hose cleaning before first use

During production and transportation the hose has been
handled with great care to prevent contamination of the
inside of the hose. Nevertheless the inside of the hose
should be cleaned prior to installation.
In order to avoid any impairment of the product to be
conveyed concerning taste or odor we recommend one
of the following cleaning procedures:

• Steamed 3 times at +120°C (+248°F) (each

time max. 30 minutes) followed by cooling down

to room temperature.

• Treatment for at least 24 hours with a hydrous

cleaning solution +40°C (+104°F) consisting of

4g sodium hydroxide and 5.8g sodium chloride

per 1 liter of water.
Both cleaning procedures must be followed by rinsing
with drinking water.

WARNING

When using the recommended products
for cleaning or disinfection, please make
sure that all necessary directions for use
and warning directions of the safety data
sheets have been carefully observed.

2.2 Hose installation and connection (EHEDG)

To install a hose refer to the procedure in
the product manual. In case of doubt
contact your Bredel representative.

In addition to the hose installation procedure as
described in the product manual, you must create a
smooth connection (EHEDG) between the hose and the
stainless steel insert. The hose clamp position is very

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important, refer to the drawings below for a proper hose
connection. The hose clamp should be installed against
the bracket E (example 1) or at the indicated position on
the bushing G (example 2).

WARNING

Only use genuine Bredel parts for a proper
hose connection.

Example 1 Hose connection (EHEDG) with a hose bore > 20mm.

A B C D EH G F

A: Pump hose
B: Pump
C: Detail Z (see detail image on page 12)
D: Hose clamp
E: Bracket
F: Stainless steel insert
G: Pipe flange
H: O-ring

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Example 2 Hose connection (EHEDG) with a hose bore  20mm.

A B G EC FD

A: Pump hose
B: Pump port
C: Detail Z (see detail image on page 12)
D: Hose clamp
E: Bracket
F: Stainless steel insert
G: Bushing

There are several options for sanitary
connections to the process piping. Contact
your Bredel representative for further
details.

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Detail Z (example)

The position of the hose clamp (D) relative to the end of
the insert (F) is crucial to make sure that the hose
deformation (H) caused by the tightened hose clamp
(D) results in a smooth transition between the pump
hose (A) and the insert (F).

2.3 Hose cleaning during hose use

A common way to clean the inside of the hose is
operating the pump whilst pumping clean water. If there
is no special bypass line in the process piping for
cleaning cycles, the pump must be disconnected from
the process piping first. Make sure the water
temperature remains below 80°C (176°F).
In case of cleaning with steam (SIP) limit the
temperature to 120°C (248°F) (maximum of 2 bara/
29 psia steam pressure), and do not clean longer than
30 minutes.

CAUTION

Cleaning agents used in cleaning cycles
may contain chemicals that are not
chemically compatible with the inner layer
of the hose. Therefore you must only use
cleaning agents which are allowed to be
used in your specific production process,
and are not chemically affecting the hose
material. For chemical compatibility
information contact your Bredel
representative.

F

H

A

12

2.4 End of life

Due to the repetitive compression cycles the hose will
eventually break down. A hose failure can be detected
by looking at the lubricant fluid level inside the pump. If
the fluid level is far above the lubricant level as
indicated on the inspection window this is an indication
for a hose failure.
After a hose failure the pump should be stopped and
thoroughly cleaned. See the product manual for the
cleaning- and hose (de)installation instructions.

WARNING

After a hose failure it cannot be guaranteed
that the pumped fluid has only been in
contact with the hose.

2.5 Hose failure detection

If a hose failure occurs you should immediately stop the
pump. It is strongly advised to use a high level float
switch to make sure the pump stops after a hose failure.
See the product manual for additional details or contact
your Bredel representative.
For procedures on removing the hose, cleaning
instructions and installing the hose, refer to the pump
product manual.

2.6 Hose disposal

After use the hose should be disposed in accordance to
the local laws applicable for rubber articles. In case of
doubt contact your Bredel representative.

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DECLARATION OF CONFORMITY

Original

EC declaration of conformity

For FOOD contact materials

According to Regulation (EC) No1935/2004 on m aterials and articles intended to come into contact with food.

We,

Watson-Marlow Bredel B.V.,

herewith declare, on our own responsibility tha t the following articles

fulfil all the relevant provisions of Regulat ion (EC) No 1935/2004:

Peristaltic hoses with white inner liner made of Nitrile Butadiene Rubber (NBR).

010065 065065
015065 080065
020065 100065
025065 300001065
032065 300002065
040065 300003065
050065

for transportation of various kinds of fluids.

The hoses comply with the Dutch Packaging and Utensils regulation for category 3 rubber article as defined in
Chapter III of Appendix A of “Regeling Verpak king en Gebruiksartikelen” (Packaging and Utensils regulations)

of 20 November, 1979

Regeling Verpakkingen en Gebruiksartikelen, Appendix A,

Chapter III, category 3

And is in accordance with the provisions as laid down in the

Code of Federal Regulations Title 21, Chapter 1, Par t 177, Subpart C, Section 177.2600 of the FDA

FDA 21CFR177.2600

And the Recommendations of the German Federal Ins titute for Risk Assessment,

BfR Recommendation XXI, category 4.

The undersigned is responsible for com pilation of the technical file and makes this declaration

on behalf of the manufacturer.

J. van den Heuvel,
Managing Director

Watson-Marlow Bredel B.V.
Sluisstraat 7, 7491 GA Delden, The Netherlands

March 2014

3 DECLARATION OF CONFORMITY

14

15

Watson-Marlow Bredel B.V.

P.O. Box 47

NL-7490 AA Delden

The Netherlands

Telephone: [phone]

Fax: [phone]

E-mail: [e-mail]

Internet: www.bredel.com

29211322 TS12-012-A

© 2014 Watson-Marlow Bredel B.V.

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Watson-Marlow Bredel B.V.
P.O. Box 47
NL-7490 AA Delden
The Netherlands

T [phone]
F [phone]
E [e-mail] www.bredel.com

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© Copyright 2014 Watson-Marlow Pumps Group

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The information contained in this document is believed to be correct at the time of publication, but Bredel Hose
Pumps B.V. accepts no liability for any error it contains, and reserves the right to alter specifications without prior
notice. All mentioned values in this document are values under controlled circumstances at our test bed. Actual flow
rates achieved may vary because of changes in temperature, viscosity, inlet and discharge pressures and / or system
configuration. DuCoNite®, Marprene® and Bredel are registered trademarks.

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A Spirax-Sarco Engineering Company

DuCoNite® and Watson-Marlow Bredel
are registered trademarks.