tellerrückschlagventil mit zweifacher führung des ... · non-return valve with double guide for...

Armaturenwerk Htensleben GmbH

Operating Instruction

Non-Return Valvewith double guide for the valve plate

Type: DN10 - DN100 / PN10Type: 1/2" - 4" / PN10

Type: SMS 1" - 4" / PN10 (France version)(Translation)

10/13

Non-Return Valve with double guide for the valve plate Operating Instructions

NOTEThese operating instructions are part of the facility and must be available to operating and maintenance personnel at all times. The safety instructions includedherein must be observed. If the facility is resold, the operating instructions mustalso be supplied to the new owner.

TranslationIf delivered to countries within the EEA, these operating instructions must be translated into the language of the country of use. If any discrepancies arise in the translated text, the original operating instructions (German) shall be consulted for clarification or the manufacturer shall be contacted.

CopyrightTransfer and reproduction of this document is forbidden, as is the utilisation and communication of itscontents, without the express permission of the owner. Any infringement of this copyright will result inclaims for damages. All rights reserved.

2

10/13

Non-Return Valve with double guide for the valve plateOperating Instructions

PagePic. 2-1 Overview 7 Pic. 3-1 DIN Welding Ends, between Flanges Connection Variants 10 Pic. 3-2 DIN Male/Welding End Connection Variants 11 Pic. 3-3 DIN Welding Ends, Clamp Ends Connection Variants 12 Pic. 3-4 Inch btw. Flanges, Male/Welding End Connection Variants 13 Pic. 3-5 SMS Male/Welding End, Welding Ends Connection Variants 14 Pic. 7-1 Non-Return Valve 25 Pic. 7-2 How the Non-Return Valve Functions 26

1. Contents

1.1 Table of Contents

Page1. Contents 3 1.1 Table of Contents 3 1.2 Table of Pictures 31.3 Manufacturers Declaration 52. Overview and Intended Use 72.1 Overview 72.2 Intended Use 83. Technical Data 93.1 Materials that come into Contact with the Product 93.2 Connection Variants, Type Series, Dimensions 93.3 General Data 154. Safety / Hazards 164.1 Notes / Explanations 164.2 Labelling the Non-Return Valve 174.3 Safety Measures (to be carried out by operator) 174.4 Operators Duties 185. Hazard Warnings 205.1 Hazards 205.2 Hazardous Area of the Check Valve 205.3 Installing Replacement and Wearing Parts 205.4 Shutdown Procedures 216. Installation 226.1 Scope of Delivery 226.2 Transport and Packaging 226.2.1 Delivery (including for spare and replacement parts) 226.2.2 Temporary Storage 226.3 Installation 236.3.1 Installing the Non-Return Valve with a Clamp/Clamp 236.3.2 Installing the Non-Return Valve with a Weldon Ends 237. Structure / Function 258. Assembly / Disassembly 27 8.1 Disassembly from the System 278.2 Assembly with Valve Plate Replacement 279. Maintenance / Cleaning 2910. Malfunction, Cause, Remedy 3011. Emergency 3112. Disposal 32

3

1.2 Table of Pictures

10/13


Directive / standard Title Version CommentsDIN EN 62079 Preparation of instructions Structuring,

content and presentation2001

97/23/EC EC Pressure Equipment Directive 2003DIN EN 12516-2 Industrial fi ttings Shell design strength

Part 2: Calculation method for steelfi tting shells

10/2004

AD 2000 data sheets Specifi cations for pressure equipment(national standards)

The fi ttings are designed for fl uids in fl uid group 1 and for gases in fl uid group 2. According to this, the nominal diameters are categorised as DN10 - DN100, " - 4", 1" - 4" SMS in accordance with article 3, section 3.2006/42/EC EC Directive: Machinery 2006

Armaturenwerk Htensleben GmbH Schulstr. 5 - 6 D-39393 Hoetensleben

Manufacturers declaration

in accordance with

EC Directive: Pressure Equipment 97/23/EC, Annex II AEC Directive: Machinery 2006/42/EC, Annex II B

We hereby declare that design of

Designation: Non-return valve with double guide for the valve plateType: DN10 - DN100 PN10 / " - 4" PN10 / SMS 1" - 4" PN10

in its delivered version is consistent with the listed directives and standards(harmonised standards in accordance with the directives):

If any modifi cations are made to the non-return valve without our agreement, this declaration is void.

Note:Commissioning is prohibited until it is certain that the overall system fulfi ls the provisions of the directives. For information about proper use of the fi ttings, see the operating instructions.

Htensleben, 29 October 2013

.............................................................................. Thomas Erhorn / CEO

Person authorised to compile the technical documentation:Armaturenwerk Htensleben GmbHMr Guth, Schulstr. 5 - 6, D-39393 Hoetensleben

5

1.3 Manufacturers Declaration

Htensleben, 29 October 2013

.............................................................................. Thomas Erhorn / CEO

10/13


5

6

2

4

3

7

8

9

1

2. Overview and Intended Use

Pic. 2-1 Overview

2.1 Overview

7

1 Housing 6 Seal ring2 Clamp cover 7 Spring3 Valve plate 8 Slide bearing4 O-ring 9 Clamp bracket5 Spring guide

10/13


WARNINGThese check valves were designed exclusively for the purposes described above.Any other use beyond that described here or alteration of the check valve withoutwritten approval from the manufacturer is considered contrary to the intendeduse. The manufacturer accepts no liability for damages arising from this. Theoperator alone bears the risk. The non-return valve may only be commissionedonce it is certain that all the safety systems are fully functioning and the system inwhich the check valve is installed corresponds to the EC directives.

Intended use also includes compliance with these operating instructions, including the maintenanceand repair conditions.

The work described in these operating instructions is described in a way intended to be understood andcarried out by experts only.

ExpertA person with appropriate training, suitable instruction and experience who is in a position to identifyrisks and avoid hazards.(As defi ned in EN 60204-1:2006)

8

Misuse, such as operation in an explosive atmosphere or with explosive media, shall be precluded.

The AWH non-return valves are intended for installation in pipelines. They were developed, designed and built for unidirectional shut-off of the fl ow of fl uid in commercial and industrial operations (food, chemical and pharmaceutical industries and low-germ processes). Suitable fl ow media include water, steam, mineral oil, food, and liquids from the chemical and pharmaceutical industry subject to a hygienic standard. They help prevent unwanted fl ows or draining of pipelines.

2.2 Intended Use

NOTEYou can fi nd the technical data sheet on the product pages of the current AWHValve Technology catalogue, on the internet or you can request it directly fromArmaturenwerk Htensleben GmbH. Note the different design types.

10/13


3. Technical Data

3.1 Materials in Contact with the Product

See Pic. 2-1Housing (item 1): 1.4301 / 1.4307 / 1.4404 / 1.4435 Clamp cover (item 2): 1.4301 / 1.4307 / 1.4404 / 1.4435 Valve plate (item 3): 1.4408Spring guide (item 4): 1.4404Spring (item 7): 1.4310 / 1.4571

Sealing materialEPDM: sterilisation temperature: short-term max. 140CFPM: sterilisation temperature: short-term max. 130C

CAUTIONThe non-return valves area of application shall always be adjusted to the relevantoperating conditions and the materials that come into contact with the product.

SurfacesExterior surface: metal bright/polishedInterior surfaces in contact with product: Ra < 0.8 (1.6) m

The non-return valves service life is about 10 years when used with chlorine-free drinking water. If usedwith aggressive media, the service life is correspondingly shorter.

NOTEThe various connection dimensions for the non-return valves are listed below. The product should preferably be installed in the vertical position.See the table for dimensions.

You can fi nd the technical data sheet on the product pages of the current AWH Valve Technology catalogue online or you can request it directly from Armaturenwerk Htensleben GmbH. The names of the data sheet and the operating instructions must be identical.

3.2 Connection Variants, Type Series, Dimensions

9

10/13


DN D1 D2 D3 L D1 D2 D3 L L1

25 26 29 64 72 26 29 87 90 50

32 32 35 77 72 32 35 92 90 50

40 38 41 91 80 38 41 97 105 55

50 50 53 104 90 50 53 110 114 64

65 66 70 119 105 66 70 127 125 75

80 81 85 145 125 81 85 142 150 90

100 100 104 170 140 100 104 162 160 100

Pic. 3-1 DIN Weldon Ends, btw. Flanges Connection Variants

10

D3

L

D1

D1

D2

D2

L1

D1

D2

D3

D1D2

L

DIN Connection Variants

DIN weldon ends DIN between flanges

10/13


11

DN D1 D2 D3 E L

10 10 15 64 Rd 52 x 1/6" 72

15 16 21 64 Rd 52 x 1/6" 72

20 20 25 64 Rd 52 x 1/6" 72

25 26 29 64 Rd 52 x 1/6" 72

32 32 35 64 Rd 58 x 1/6" 72

40 38 41 91 Rd 65 x 1/6" 83

50 50 53 104 Rd 78 x 1/6" 93

65 66 70 119 Rd 95 x 1/6" 105

80 81 85 145 Rd 110 x 1/4" 125

100 100 104 170 Rd 130 x 1/4" 140

Pic. 3-2 DIN Thread/Weldon End Connection Variants

L

E

D1D2

D3

DIN Connection Variants

DIN thread/weldon end

10/13


DN D1 D2 D3 L D1 D2 D3 L

1/2" 9.4 12.7 64 80 9.4 25 64 90

3/4" 15.75 19.05 64 80 15.75 25 64 90

1" 22.2 25.4 64 77 22.2 50.5 64 80

1 1/2" 34.8 38.1 64 72 34.8 50.5 64 80

2" 47.6 50.8 104 95 47.6 64 104 100

2 1/2" 60.3 63.5 119 110 60.3 77.5 119 115

3" 72.9 76.1 119 105 72.9 91 119 115

4" 97.4 101.6 170 140 97.4 119 170 145

Pic. 3-3 DIN Weldon Ends, Clamp/Clamp Connection Variants

12

D3

L

D1

D1

D2

D2

D3

L

D1

D1

D2

D2

Inch Connection Variants

Inch weldon ends Inch clamp/clamp

10/13


DN D1 D2 D3 L D1 D2 D3 E L

1" 22.2 25.4 87 90 22.2 25.4 64 Rd 40 x 1/6" 77

1 1/2" 34.8 38.1 97 105 34.8 38.1 77 Rd 60 x 1/6" 72

2" 47.6 50.8 110 114 47.6 50.8 104 Rd 70 x 1/6" 95

2 1/2" 60.3 63.5 127 125 60.3 63.5 119 Rd 85 x 1/6" 110

3" 72.9 76.1 142 135 72.9 76.1 119 Rd 98 x 1/6" 105

4" 97.4 101.6 162 160 97.4 101.6 170 Rd 132 x 1/6" 140

Pic. 3-4 Inch btw. Flanges, Male/Weldon End Connection Variants

13

L

D1

D2

D3

D1

D2

L

D1

D2D3

D1

E

Inch Connection Variants

Inch between flanges Inch thread/weldon end

10/13


14

DN D1 D2 E L D1 D2 L

1" 22.5 25 Rd 40 x 1/6" 77 22.5 25 77

1 1/2" 35.4 38 Rd 60 x 1/6" 72 35.4 38 72

2" 48 51 Rd 70 x 1/6" 95 48 51 95

2 1/2" 60.2 63.5 Rd 85 x 1/6" 110 60.2 63.5 110

3" 72.1 76.1 Rd 98 x 1/6" 105 72.1 76.1 105

4" 100 104 Rd 125 x 1/4" 140 100 104 140

100 100 104 Rd 125 x 1/4" 140 100 104 140

Pic. 3-5 SMS Male/Weldon End, Weldon Ends Connection Variants

D2

D1

L

D2

D1E

D1

L

D2

D1

SMS Connection Variants

SMS thread/weldon end SMS weldon ends

10/13


NOTEAfter prior consultation, other customer wishes regarding connection variants andopening pressures can be fulfi lled.

15

3.3 General Data

Ambient temperature rangeLower limit temperature: + 5CUpper limit temperature: + 45C

Noise level < 70 dB (A)Max. permissible operating pressure 10 barMax. permissible operating temperature 80COpening pressure (standard) 0.05 bar

10/13


4. Safety / Hazards

4.1 Notes / Explanations

HAZARDHAZARD warns of hazardous situations. Avoid these hazardous situations. Failure to do so could result in death or serious injury.

WARNINGWARNING warns of hazardous situations. Avoid these hazardous situations. Failure to do so could result in death or serious injury.

CAUTIONCAUTION combined with a warning symbol indicates hazardous situations. Avoid these hazardous situations.Failure to do so could result in minor injury.

NOTENOTE indicates recommended actions. Failure to comply with these will not result in personal injury. However, follow the recommended actions to avoid damage to property and trouble.

NOTEThe installation instructions are binding;indicated by a book symbol.

HAZARDThis symbol indicates crushing hazards.

HAZARDThis symbol indicates a risk of burning.

NOTEEnvironment symbolIndicates environmental protection measures.

16

10/13


4.2 Labelling the Non-Return Valve

The information in these operating instructions only applies to the non-return valve of the type and version specified on the title page.

If you have any queries, specify the following correctly:- the nominal width- the sealing material- the housing material- the connection type (DIN 11851, inch, weld, clamp etc.)

This is the only way to ensure efficient, quick processing.

4.3 Safety Measures (to be carried out by operator)

Note that- The operator is responsible for training its operating and maintenance personnel and monitoring compliance with safety measures, including the obligation to wear personal protective equipment.- The operator shall ensure that unauthorised persons are prevented from entering the machines hazardous area (where the check valve is installed), (not operating or maintenance personnel).- The non-return valve may only be installed if the pipelines have been previously drained.- The separation of energy sources shall be designed technically to enable compliance with the shutdown procedures described in section 5.4.

These operating instructions shall be retained for future use.They must be available in the vicinity of the system in which the non-return valve is installed.The frequency of inspections and monitoring measures shall be observed.

The work described in the sections on transport, installation, assembly, maintenance, malfunction / cause / remedy shall only be carried out by experts.

ExpertA person with appropriate training, suitable instruction and experience who is in a position to identify risks and avoid hazards.

17

10/13


18

4.4 Operators Duties

The operator shall comply with local statutory provisions for:- safety of personnel (accident prevention regulations),- safety of work equipment (protective equipment and maintenance),- disposal of products (waste management laws),- disposal of materials (waste management laws),- cleaning (cleaning agents and disposal) and- environmental protection requirements.- The installer/operator shall ensure that all fl ange or pipe unions are leak-proof.- Tensile and compression stresses shall be ruled out after installation in the pipeline.

In addition, the operator shall ensure- If maintenance and repair work is carried out on the check valve, there is a risk of injury (crushing points) from the springs (residual energy). Also note the crushing points when connecting the system and during transport (setting down).- When using hazardous materials, protective measures shall be specifi ed in accordance with the safety data sheets and operating instructions shall be compiled for hazardous materials. Personnel shall be instructed in this fi eld. This also applies to hazardous materials that could be produced in the operating process.- A continuous risk assessment shall be carried out for workplaces, including temperature conditions for the medium and the place of use (falling). The measures shall be recorded in operating instructions and personnel shall be instructed accordingly.- Supervisors shall monitor compliance with the measures specifi ed in the operating instructions.- Training of operating personnel shall be ensured.- Wherever large pneumatic pressures occur, there is a possibility of sudden failure of or damage to the lines and connectors. This poses a hazard.- The installer of the overall system shall install and provide certifi cation for the control units and safety equipment needed for setting up, checking, shutting down (including emergency shutdown), operating, maintaining, cleaning and repairing the system.- The operator shall provide technical fi re protection equipment, such as appropriate hand fi re extinguishers, in suffi cient quantities and dimensions at easily accessible points and shall instruct employees in fi re safety.- Warnings from the documentation for supplied assemblies shall be observed and integrated in the workplace-specifi c risk assessments.- The operator is obliged to operate the check valve in perfect condition at all times.

NOTEIn the EEA (European Economic Area), the national implementations of the frame-work directive (89/391/EEA) and the associated individual directives, especiallythe directive (2009/104/EC) on the minimum specifi cations for safety and healthprotection of employees using work equipment, shall be observed and compliedwith in their current valid versions. In Germany, the 2011 Ordinance on IndustrialSafety and Health (BetrSichV) shall be observed.

10/13


19

NOTEIllumination levelThe operator shall ensure suffi cient and consistent illumination in all areas of the plant. We recommend an illumination level of 300 lux (maintenance value;ASR 7/3 applies in Germany).

NOTEIn accordance with the Ordinance on Industrial Safety and Health (BetrSichV), theoperator shall provide its personnel with safety instruction at least once a year.

ConnectionsBefore operating the machine with the check valve, the operator shall ensure that the local specifi cations were followed during assembly and commissioning, if these were carried out by the operator.

10/13


20

5. Hazard Warnings

5.1 Hazards

CAUTIONThe non-return valves and the length and quality of lines must meet the require-ments. The system shall be assembled by qualified experts.

Make sure that only the media specified in the data sheet are used. The parameters listed in the data sheet must be complied with.

HAZARDThere is a risk of burning during operation or maintenance if flow media havetemperatures over 60C.

5.2 Hazardous Area of the Check Valve

The area of the check valve shall be kept accessible to the operator.

CAUTIONThe hazardous area during setup, maintenance and repair work extends for 1 maround the check valve. Take into consideration the swing range of any switchcabinet doors that can open. The operator shall ensure that persons are prevented from entering the hazardous area during motion sequences.

5.3 Installing Replacement and Wearing Parts

We expressly draw attention to the fact that replacement and accessory parts not supplied by AWHhave not been checked or approved by AWH. Installing and/or using this type of product can thereforenegatively alter the structural properties of your plant, under certain circumstances. ArmaturenwerkHtensleben GmbH bears no liability for damages caused by using non-original parts and non-originalaccessory parts.

10/13


21

5.4 Shutdown Procedures

WARNINGBefore cleaning, maintenance or repair work is carried out (by experts only), thefollowing shutdown procedure must always be completed.

1. Switch off power to higher-level plant / machine / device.

2. Seal off the pneumatics- Close shut-off valve.- Check that the system is non-pressurised.- Secure the shut-off valve against opening.

3. Shut off the flow of media, relieve the pressure in the pipelines and then drain them (take particular care with hazardous materials). Check that an inflow of media is prevented and insert dummy discs if necessary. Note that if the media tempe-ratures exceed 60C, a cooling off phase must be observed.

Failure to do so could endanger the life and health of personnel.

10/13


22

6. Installation

6.1 Scope of Delivery

NOTEThe detailed scope of delivery can be seen in the order confi rmation.

6.2 Transport and Packaging

Products from Armaturenwerk Htensleben GmbH is carefully checked and packed before shipping, however the product may become damaged during transport.

6.2.1 Delivery (including for spare and replacement parts)

Unpacking- Remove the protective caps from the pipe connections (if present).- Remove the packaging residue.

Incoming goods check- Check that the product was delivered in full against the delivery note!

In the event of damage- Check the delivery for damage (visual inspection)!

In the event of complaintsIf the delivery was damaged during transport:- Contact the last shipment agent immediately.- Retain the packaging (for possible checking by the shipment agent or for a return delivery).

Packaging for return deliveryIf possible, use the original packaging and the original packaging material.If neither is available any more, request a packaging company with experts.If there are any questions about the packaging and transport safety equipment, please contactArmaturenwerk Htensleben GmbH.

6.2.2 Temporary Storage

Store in an enclosed roomStorage conditions- temperature 10C to 45C- humidity < 60%

10/13


23

6.3 Installation

NOTEThe non-return valve is installed in accordance with the structural layout of thepipeline system and the technical data for the connection variants. See the dimensional drawings for the installation dimensions.

Ensure suffi cient space is available for operation and maintenance. Note the correct direction of installation, in accordance with the fl ow of direction indicated.

Make sure that the pipe unions are leak-proof. Tensile and compression stressesshall be ruled out.

6.3.1 Installing the Non-Return Valve with a Clamp/Clamp

Before assembly, check the seal rings in the clamp supports for damage and to ensure that they areinstalled in the correct position. Replace, if necessary.

6.3.2 Installing the Non-Return Valve with a Weldon Ends

Welding guidelinesThe welding into pipes is carried out in accordance with DIN 11850 / DIN 11866 or similar.Welding method: TIG or orbital weldingSeam type: butt weld joins as per DIN EN 29692

Installed conditionThe non-return valve shall be removed before welding (see section on assembly / disassembly).

Weld seam preparation- Cut the ends of the pipes level and right-angled.- Remove burrs from the interfaces.- Align the housing weldon ends with the pipeline so they are level radially and axially. The weldon ends must fi t fl ush and be welded without a gap.

Filler materials

Base material Suitable fi ller material1.4301 1.4302, 1.4316, 1.45511.4404 1.4430, 1.4455, 1.45761.4435 1.4430, 1.4440

10/13


24

Welding- Connect forming gas before welding.- Affix 3 to 4 tack welds before welding.

Weld after-treatment- No treatment is necessary on the interior after welding. The surface of accessible points can be improved by grinding.- The exterior can be treated afterwards by staining, brushing, grinding and polishing.

Cleaning- Clean all welded parts before assembly.

10/13


25

7. Structure / Function

Pic. 7-1 Non-Return Valve

1 Housing 6 Seal ring2 Clamp cover 7 Spring3 Valve plate 8 Slide bearing4 O-ring 9 Clamp bracket5 Spring guide

5

6

2

4

3

7

8

9

1

10/13


26

Check valves help prevent unwanted flows or draining of pipelines. Furthermore, they are installed in pipelines in which several substances are mixed. A check valve is installed in every component line to prevent penetration of another component. Check valves are preferably installed vertically on the pumps pressure side. This prevents a drop in the fluid level or draining of system parts located higher up when the pump is switched off/fails. To reduce noise formation, a certain distance should be kept from the pump so that the flow into the line is as laminar as possible.

When at rest (i.e. the pressure on either side ofthe valve plate is the same), the valve plate ispressed into the valve seat by spring force. Thevalve is closed.

If, for example, pumps are switched on and thepressure difference on either side of the valveincreases beyond the opening pressure value,the spring force is overcome and the valve plateis moved out of the valve seat.The product can flow in the specified direction.The valve is open.

If the pressure difference on either side of thevalve plate drops below the opening pressurevalue, the valve plate is pressed by spring forceinto the valve seat.

The same occurs if the pressure after the valveplate is larger than the pressure in front of thevalve plate (e.g. static pressure of the liquidcolumn on the valve seat, as in a riser or tank).

Pic. 7-2 How the Non-Return Valve Functions

p2

p1

p=p1-p2p

10/13


8.1 Disassembly from the System

When disassembling the non-return valve in the system, proceed as follows:1. Switch off the pressure in the piping system.2. Drain the piping system. Note the direction of fl ow in the valve!3. Loosen the wing bolt on the clamp bracket (item 9).4. Caution! When the housing (item 1) is removed from the pipeline, the spring guide (item 5) may spring out of its seat together with the spring (item 7).

27

8. Assembly / Disassembly

HAZARDWhen the housing is opened, medium above the valve plate may escape. There isa risk of burning if fl ow media have temperatures over 60C.

5. Remove the valve plate (item 3) with the O-ring (item 4) from the housing (item 1).

HAZARDBefore cleaning, maintenance and repair work is carried out, the following shutdown procedure must always be completed.

1. Switch off power to higher-level plant/machine/device.

2. Cut off medium- Check that the non-return valve is non-pressurised.- Note that if the media temperatures exceed 60C, a cooling off phase must be observed.


8.2 Assembly with Valve Plate Replacement

See Pic. 7-11. Check the seal ring (item 4) in the valve plate (item 3) for damage.2. When replacing the seal ring, press it diagonally and evenly into the seat. Moisten the sealing ring with fl ushing medium to make assembly easier.3. Clean the installation space and individual parts and check for any damage.4. Place the valve plate (item 3) in the housing (item 1). Make sure that the valve plate fi ts properly into the sealing seat.5. Position the spring (item 7) on the valve plates spigot.

NOTEProceed carefully and meticulously to avoid damage.

10/13


6. Complete the spring guide (item 5) with the seal ring (item 6) and the slide bearing (item 8).7. Slide the spring guide (item 5) over the pin of the valve plate (item 3), the spring (item 7) and press this unit flush into the housing sat.8. Slide the clamp support (item 2) onto the pre-tensioned unit and fasten with the clamp bracket (item 9).9. Check for leaks under operating conditions.

28

10/13


29

9. Maintenance / Cleaning

To clean the product when installed, simply wash the surfaces that come into contact with media (CIP-cleaning).

Cleaning agents: 3% nitric acid max. 60C 3% caustic soda max. 80C

Make sure to- Use only clean and chlorine-free water.- Dose carefully and avoid overly strong concentrations of cleaning agent.- Rinse with plenty of clean water after cleaning.

CAUTIONStore the cleaning agents in accordance with the relevant safety guidelines.

When handling cleaning agents, follow the safety instructions on the cleaningagent manufacturers data sheet.

Always wear rubber gloves and protective goggles when cleaning.

Make sure not to touch the non-return valve or pipeline when processing warmmedia or during the sterilisation process.

HAZARDBefore cleaning, maintenance and repair work is carried out, the following shutdown procedure must always be completed.

1. Switch off power to higher-level plant / machine / device.

2. Cut off medium- Check that the non-return valve is non-pressurised.- Note that if the media temperatures exceed 60C, a cooling off phase must be observed.


10/13


30

10. Malfunction, Cause, Remedy

WARNINGIf the measures described here do not have the desired result, please contact aspecialist or Armaturenwerk Htensleben GmbH.

Malfunction Cause Remedy

Check valve is not leak-proof Seal faulty or missing Replace seal

Clamp bracket not fully tightened Tighten wingnut

Check valve not functioning O-ring in valve plate is damaged Replace O-ring

O-ring not sitting evenly in valveplate

Press O-ring diagonally into thesealing seat

Spring forgotten during assembly Install spring

Valve disc twisted in housing Replace slide bearing for upperguide

10/13


31

11. Emergency

In an emergency:- Activate the emergency-off function in the higher-level system (press emergency-off button).- Cut off the flow of media.

10/13


12. Disposal

NOTEThe non-return valve is mainly made of stainless steel (except for the seals) and should be disposed of in accordance with the applicable local environmental regulations.

Cleaning agents must be disposed of in accordance with local regulations.

Contaminated liquids and cleaning residue should be disposed of in accordancewith environmental regulations.Also dispose of the packaging material in an environmentally sensitive mannerand recycle them.

CAUTIONMake sure not to touch or come into contact with any harmful fluids. Wear appro-priate personal protective equipment (e.g. protective goggles, protective gloves).

32

Armaturenwerk Htensleben GmbHSchulstr. 5 - 6D-39393 Hoetensleben

Tel.: +49 39405 92-0 Fax: +49 39405 92-111 e-mail: [email protected] http://www.awh.eu

NEUMO Budapest Kft. (Hungary)

NEUMO Mhendislik ve (Turkey)

EGMO Ltd. (Israel)

NEUMO Representative Offices Vietnam

NEUMO VARGUS (China)

Armaturenwerk Htensleben GmbH (Germany)

AWH Vienna (Austria)

AWH Lyon (France)

Gebr. Rieger GmbH & Co. KG (Germany)

NEUMO GmbH & Co. KG (Germany)

Damstahl GmbH & Co. KG (Germany)

NEUMO UK Ltd. (United Kingdom)

Damstahl AG (Switzerland)

Herrli AG (Switzerland)

NEUMO-EGMO Spain SL (Spain)

NEUMO Polska Sp. z.o.o. (Poland)

NEUMO GUS (Russia)

Damstahl AB (Sweden)

Damstahl a/s (Denmark)

Damstahl a/s (Norway)

NEUMO GUS Kransodar (Russia)

AWH Milan (Italy)

Dams

He

AWH Wasco (USA / Canada)

VNE Corporation (USA)

NEUMO-Ehrenberg-Group

tellerrückschlagventil mit zweifacher führung des ... · non-return valve with double guide for...

Documents