Pfeiffer Vacuum N Series User manual

OPERATING INSTRUCTIONS
EN
Original
N-SERIES VALVE
Valve

Dear customer,
Thank you for choosing a Pfeiffer Vacuum product. Your new Pfeiffer Vacuum valves should
support you in your individual application with full performance and without malfunctions. The
name Pfeiffer Vacuum stands for high-quality vacuum technology, a comprehensive and
complete range of top-quality products and first-class service. With this expertise, we have
acquired a multitude of skills contributing to an efficient and secure implementation of our
product.
Knowing that our product must not interfere with your actual work, we are convinced that our
product offers you the solution that supports you in the effective and trouble-free execution of
your individual application.
Please read these operating instructions before putting your product into operation for the
first time. If you have any questions or suggestions, please feel free to contact info@pfeiffer-
vacuum.de.
Further operating instructions from Pfeiffer Vacuum can be found in the Download Center on
our website.
Disclaimer of liability
These operating instructions describe all models and variants of your product. Note that your
product may not be equipped with all features described in this document. Pfeiffer Vacuum
constantly adapts its products to the latest state of the art without prior notice. Please take
into account that online operating instructions can deviate from the printed operating
instructions supplied with your product.
Furthermore, Pfeiffer Vacuum assumes no responsibility or liability for damage resulting from
the use of the product that contradicts its proper use or is explicitly defined as foreseeable
misuse.
Copyright
This document is the intellectual property of Pfeiffer Vacuum and all contents of this
document are protected by copyright. They may not be copied, altered, reproduced or
published without the prior written permission of Pfeiffer Vacuum.
We reserve the right to make changes to the technical data and information in this document.
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Table of contents
1 About this manual 5
1.1 Validity 5
1.1.1 Applicable documents 5
1.1.2 Products concerned 5
1.2 Target group 5
1.3 Conventions 5
1.3.1 Instructions in the text 5
1.3.2 Pictographs 6
1.3.3 Abbreviations 6
1.4 Trademark proof 6
2 Safety 7
2.1 General safety information 7
2.2 Safety instructions 7
2.3 Safety precautions 8
2.4 Limits of use of the product 8
2.5 Proper use 9
2.6 Foreseeable misuse 9
2.7 Personnel qualification 9
2.7.1 Ensuring personnel qualification 9
2.7.2 Personnel qualification for maintenance and repair 10
2.7.3 Advanced training with Pfeiffer Vacuum 10
3 Product description 11
3.1 Function 11
3.2 Scope of delivery 11
3.3 Identifying the product 12
3.3.1 Product types 12
3.3.2 Product features 12
4 Transportation and Storage 13
4.1 Transport 13
4.2 Storage 13
5 Installation 14
5.1 Preparatory work 14
5.2 Mounting the valve 14
5.2.1 Pneumatic connection 14
5.2.2 Power supply connection 15
6 Operation 16
7 Maintenance 17
7.1 General maintenance information 17
7.2 Replacing O-ring seal 17
7.3 Replacing or adding pilot valve 17
7.4 Replacing or adding position indicator 18
8 Decommissioning 19
9 Recycling and disposal 20
9.1 General disposal information 20
10 Malfunctions 21
11 Service solutions by Pfeiffer Vacuum 22
12 Spare parts - N-Series valve 24
Table of contents
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13 Technical data and dimensions 25
13.1 General 25
13.2 Technical data 26
13.3 Dimensions 27
Declaration of Conformity 29
Table of contents
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1 About this manual
IMPORTANT
Read carefully before use.
Keep the manual for future consultation.
1.1 Validity
This operating instructions is a customer document of Pfeiffer Vacuum. The operating instructions de-
scribe the functions of the named product and provide the most important information for the safe use of
the device. The description is written in accordance with the valid directives. The information in this op-
erating instructions refers to the product's current development status. The document shall remain valid
provided that the customer does not make any changes to the product.
1.1.1 Applicable documents
Document Reference
Declaration of conformity included with these operating instructions
1.1.2 Products concerned
This document applies to products with the following part numbers:
Part number Description
NAP-Sxxxxx Models for angle valves
NAIP-Sxxxxx Models for angle inline valves
1.2 Target group
These operating instructions are aimed at all persons performing the following activities on the product:
●Transportation
●Setup (Installation)
●Usage and operation
●Decommissioning
●Maintenance and cleaning
●Storage or disposal
The work described in this document is only permitted to be performed by persons with the appropriate
technical qualifications (expert personnel) or who have received the relevant training from Pfeiffer Vac-
uum.
1.3 Conventions
1.3.1 Instructions in the text
Usage instructions in the document follow a general structure that is complete in itself. The required ac-
tion is indicated by an individual step or multi-part action steps.
Individual action step
A horizontal, solid triangle indicates the only step in an action.
►This is an individual action step.
Sequence of multi-part action steps
The numerical list indicates an action with multiple necessary steps.
1. Step 1
2. Step 2
3. ...
About this manual
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1.3.2 Pictographs
Pictographs used in the document indicate useful information.
Note
Tip
1.3.3 Abbreviations
Abbreviation Meaning in this document
CDA Clean dry air
CF Flange: Metal-sealed connector in accordance with ISO 3669
Delta P Delta pressure
DN Nominal diameter as size description
FKM Fluoropolymer rubber
HV High vacuum
IPA Isopropyl alcohol
ISO Flange: Connection in accordance with ISO 1609 and ISO 2861
NAP N-Series angle valve
NAIP N-Series angle in-line valve
Tbl. 1: Abbreviations used in this document
1.4 Trademark proof
●Krytox® is a registered trademark of Chemours Company.
●Loctite® is a registered trademark of Henkel IP & Holding GmbH, Germany.
About this manual
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2 Safety
2.1 General safety information
The following 4 risk levels and 1 information level are taken into account in this document.
DANGER
Immediately pending danger
Indicates an immediately pending danger that will result in death or serious injury if not observed.
►Instructions to avoid the danger situation
WARNING
Potential pending danger
Indicates a pending danger that could result in death or serious injury if not observed.
►Instructions to avoid the danger situation
CAUTION
Potential pending danger
Indicates a pending danger that could result in minor injuries if not observed.
►Instructions to avoid the danger situation
NOTICE
Danger of damage to property
Is used to highlight actions that are not associated with personal injury.
►Instructions to avoid damage to property
Notes, tips or examples indicate important information about the product or about this docu-
ment.
2.2 Safety instructions
Risks during installation
WARNING
Risk of fatal injury due to electric shock on account of incorrect installation
The device's power supply uses life-threatening voltages. Unsafe or improper installation can lead to
life-threatening situations from electric shocks obtained from working with or on the unit.
►Ensure safe integration into an emergency off safety circuit.
►Do not carry out your own conversions or modifications on the unit.
WARNING
Risk of injury due to incorrect installation
Dangerous situations may arise from unsafe or incorrect handling
►Do not put hands or any other body part or objects in the valve.
WARNING
Risk of injury due to overpressure in the vacuum system > 1000 hPa
Released parts and escaped gases can result in injury.
►Do not open clamps while the vacuum system is pressurized.
►Use the clamp types that are suited for overpressure.
Safety
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WARNING
Risk of injury due to overpressure in the vacuum system > 2500 hPa
KF flange connections with elastomer seals cannot withstand such pressures. Process media can
leak and cause potential damage to your health.
►Use O-rings provided with an outer centering ring.
Risks during maintenance, decommissioning and disposal
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
►Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
►Decontaminate affected parts before carrying out maintenance work.
►Wear protective equipment.
2.3 Safety precautions
Duty to provide information on potential dangers
The product holder or user is obliged to make all operating personnel aware of dangers
posed by this product.
Every person who is involved in the installation, operation or maintenance of the product
must read, understand and adhere to the safety-related parts of this document.
Infringement of conformity due to modifications to the product
The Declaration of Conformity from the manufacturer is no longer valid if the operator
changes the original product or installs additional equipment.
●Following the installation into a system, the operator is required to check and re-evalu-
ate the conformity of the overall system in the context of the relevant European Direc-
tives, before commissioning that system.
General safety precautions when handling the product
►Observe all applicable safety and accident prevention regulations.
►Check that all safety measures are observed at regular intervals.
►Never put hands or any other object in the valve.
2.4 Limits of use of the product
Parameter Limit value
Installation orientation Product may be installed in any orientation, with flow in either direction
Allowable ambient hu-
midity
0 - 95 % non-condensing
Process temperature
range
-18 - 200 °C
Process temperatures above 150 °C may require use of seal materials oth-
er than FKM
Heating capabilities Body can be heated up to 150 °C with optional heater kits
Maximum internal
pressure
1400 hPa
Maximum Delta P
across poppet
1400 hPa in open direction. 1400 hPa in closing direction.
Open / close speed 0.5 s to open, 0.7 s to close at 5500 hPa
Pneumatic supply 4000 - 69000 hPa.
Safety
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Parameter Limit value
Solenoid electrical
specifications
120 V AC
24 V DC
240 V AC
24 V AC
2.5 W
1.8 W
4.0 W
4.0 W
Position indicators Optical: NPN
Optical: PNP
Reliability 5 million cycles in clean environment
Leak rate 1 x 10-9 hPa l/s (for valves with FKM seals)
Tbl. 2: Limits of use for N-Series angle valve
2.5 Proper use
►Use the valve only for isolating in a vacuum system.
►Use the valve only in closed indoor areas.
2.6 Foreseeable misuse
Improper use of the product invalidates all warranty and liability claims. Any use that is counter to the
purpose of the product, whether intentional or unintentional, is regarded as misuse, in particular:
●Use outside the mechanical and electrical application limits in accordance with the technical data
●Use with corrosive or explosive media, if this is not explicitly permitted
●Use outdoors
●Use with bare hands or with powder gloves
●Use after unauthorized technical changes (on the inside or the outside of the product)
●Use with replacement or accessory parts that are unsuitable or are not approved
2.7 Personnel qualification
The work described in this document may only be carried out by persons who have appropriate profes-
sional qualifications and the necessary experience or who have completed the necessary training as
provided by Pfeiffer Vacuum.
Training people
1. Train the technical personnel on the product.
2. Only let personnel to be trained work with and on the product when under the supervision of
trained personnel.
3. Only allow trained technical personnel to work with the product.
4. Before starting work, make sure that the commissioned personnel have read and understood
these operating instructions and all applicable documents, in particular the safety, maintenance
and repair information.
2.7.1 Ensuring personnel qualification
Specialist for mechanical work
Only a trained specialist may carry out mechanical work. Within the meaning of this document, special-
ists are people responsible for construction, mechanical installation, troubleshooting and maintenance
of the product, and who have the following qualifications:
●Qualification in the mechanical field in accordance with nationally applicable regulations
●Knowledge of this documentation
Specialist for electrotechnical work
Only a trained electrician may carry out electrical engineering work. Within the meaning of this docu-
ment, electricians are people responsible for electrical installation, commissioning, troubleshooting, and
maintenance of the product, and who have the following qualifications:
●Qualification in the electrical engineering field in accordance with nationally applicable regulations
●Knowledge of this documentation
Safety
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In addition, these individuals must be familiar with applicable safety regulations and laws, as well as the
other standards, guidelines, and laws referred to in this documentation. The above individuals must
have an explicitly granted operational authorization to commission, program, configure, mark, and earth
devices, systems, and circuits in accordance with safety technology standards.
Trained individuals
Only adequately trained individuals may carry out all works in other transport, storage, operation and
disposal fields. Such training must ensure that individuals are capable of carrying out the required activi-
ties and work steps safely and properly.
2.7.2 Personnel qualification for maintenance and repair
Advanced training courses
Pfeiffer Vacuum offers advanced training courses to maintenance levels 2 and 3.
Adequately trained individuals are:
●Maintenance level 1
─Customer (trained specialist)
●Maintenance level 2
─Customer with technical education
─Pfeiffer Vacuum service technician
●Maintenance level 3
─Customer with Pfeiffer Vacuum service training
─Pfeiffer Vacuum service technician
2.7.3 Advanced training with Pfeiffer Vacuum
For optimal and trouble-free use of this product, Pfeiffer Vacuum offers a comprehensive range of
courses and technical trainings.
For more information, please contact Pfeiffer Vacuum technical training.
Safety
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3 Product description
3.1 Function
N-Series valves are pneumatically operated bellows sealed angle valves, designed for light weight and
compact size as well as robust operation and long life.
Fig. 1: N-Series valve design
1 Activation air inlet standard with 360° swivel 10 Bottom port
2 Position sensor board (optional) 11 Side port
3 Air solenoid (ptional) 12 Air cylinder
4 Activation air inlet 13 Piston
5 Piston seal 14 Closing springs
6 Bellows 15 Position sensor ring
7 Valve body 16 Bonnet seal
8 Poppet 17 Actuator cap
9 O-Ring seal
3.2 Scope of delivery
●N-Series angle valve
●Quick-start guide
Product description
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3.3 Identifying the product
►To ensure clear identification of the product when communicating with Pfeiffer Vacuum, always
keep all of the information on the model number and serial number on hand.
3.3.1 Product types
The product designation of Pfeiffer Vacuum N-Series angle valves from the NAP (angle) and NAIP (an-
gle in-line) series is composed of the family name, the size and, if required, an additional feature de-
scription.
Family Size/model
NAP DN 16 to 50
NAIP DN 16 to 50
Tbl. 3: Product designation of Pfeiffer Vacuum N-Series Angle Valves
3.3.2 Product features
Feature Description Valve version
Valve body material 304 stainless steel NAP and NAIP
Welded bellows shaft seal AM-350 NAP and NAIP
Bonnet / poppet seals FKM elastomer NAP and NAIP
Tbl. 4: N-Series angle valve features
Product description
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4 Transportation and Storage
4.1 Transport
WARNING
Danger of serious injury due to falling objects
Due to falling objects there is a risk of injuries to limbs through to broken bones.
►Take particular care and pay special attention when transporting products manually.
►Do not stack the products.
►Wear protective equipment, e.g. safety shoes.
We recommend
Pfeiffer Vacuum recommends keeping the transport packaging and original protective cov-
er.
Instructions for safe transport
►Transport the valve only within the permissible temperature limits.
►Where possible, always transport or ship the valve in its original packaging.
►Always carry the valve with both hands.
►Remove the protective cover only immediately prior to installation.
►Transport the valve in the closed position.
4.2 Storage
We recommend
Pfeiffer Vacuum recommends storing the products in their original transport packaging.
Storing the N-Series angle valve
1. Seal all flange openings with the original protective caps.
2. Seal all other connections (e.g. venting connection) with the corresponding original parts.
3. Store the valve only indoors within the permissible temperature limits.
Transportation and Storage
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5 Installation
5.1 Preparatory work
WARNING
Risk of injury due to incorrect installation
Dangerous situations may arise from unsafe or incorrect handling
►Do not put hands or any other body part or objects in the valve.
General notes for the installation of vacuum components
►Choose an installation location that permits access to the product and to supply lines at all times.
►Observe the ambient conditions given for the limits of use.
►Provide the highest possible level of cleanliness during assembly.
►Ensure that flange components during installation are grease-free, dust-free and dry.
Required tools and materials
●Lint-free, dry wipe
●Powder-free latex gloves
●Vacuum grease
Pre-installation
1. Observe the instructions for transport to the installation location.
2. Determine that the valve and adjacent plumbing in the vacuum system will be adequately support-
ed when installed.
3. Make sure the mating flanges are in line, flat, parallel, and the correct distance aparty to minimize
straining of the valve body.
4. Remove the flange cover and wipe the flange and gaskets with a lint-free, dry wipe.
5. If installing an o-ring seal flange, apply a light film of vacuum grease to the o-ring and install in the
flange groove.
5.2 Mounting the valve
●Bending moments across the inlet and outlet flange connections should never exceed
5.65 Nm.
Required tools and materials
●Clamps
●Lint-free gloves
Prerequisites
●Make sure no foreign particles enter the valve
●Leave protective caps in place until the product is ready to be installed
Procedure
1. Remove protective flange caps from the valve.
2. Connect the valve to the vacuum system using the clamps
5.2.1 Pneumatic connection
Connection to the compressed air supply may only be established if:
●The compressed air line is not pressurized
●The product is installed in a vacuum system or
●The moving parts are protected to avoid accidental contact
Installation
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Required tools and materials
●Lint free gloves
●Plastic tube for air inlet:
─Size ø4 mm
─Material: polyamide soft or polyurethane
Prerequisites
●Prepare the plastic tube to ensure leak tightness
─Cut the plastic tube orthogonally
─Make sure the outside of the plastic tube is not damaged
Connect air line
1. Push the plastic tubes into the instant push-in fittings until the stop position is reached.
2. Check for correct mounting by slightly pulling.
5.2.2 Power supply connection
WARNING
Risk of fatal injury due to electric shock on account of incorrect installation
The device's power supply uses life-threatening voltages. Unsafe or improper installation can lead to
life-threatening situations from electric shocks obtained from working with or on the unit.
►Ensure safe integration into an emergency off safety circuit.
►Do not carry out your own conversions or modifications on the unit.
Connection to the power supply may only be established if:
●The power supply is de-energized
●The product is installed in a vacuum system
●The moving parts are protected to avoid accidental contact
Required tools and materials
●Lint free gloves
●Electrical connection for pilot valve
●Electrical connection for position indicator
Connect pilot valve
►Make electrical connection to black and red wires on pilot valve.
Connect position indicator
►Make electrical connection to position indicator:
–Black wire is ground
–Green wire is closed
–White wire is open
–Red wire is 24 V DC
Installation
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6 Operation
●For continued trouble-free operation, keep the valve clean and free of contaminants.
●Use powder-free latex gloves to avoid contaminating the valve with finger oils.
●Work in a clean environment to avoid other contamination.
Operation
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7 Maintenance
7.1 General maintenance information
Required spare parts
●To order replacement parts or repair kits, contact Pfeiffer Vacuum service.
●Please provide the model number and serial number when ordering replacement parts.
Serviceable parts
►Contact Pfeiffer Vacuum service for repair of non-user-serviceable parts
7.2 Replacing O-ring seal
●Always wear powder-free latex gloves when servicing the valve
●Be careful not to scratch o-ring groove
●Avoid twisting, stretching, or deforming the o-ring
●Avoid damaging the materials
●Heat gun may be required to melt any Loctite on jam nut threads
Required tools and materials
●3/32" hex key
●Lint-free gloves
●Replacement o-rings
Prerequisites
●Dismount valve from the vacuum system
●Remove air fitting, if installed
Remove and clean o-rings
1. Install vented screw with large flat washer until screw stops.
–Do not overtighten.
–This partially opens the valve allowing the bellows/actuator assembly to be removed.
2. Remove the four button head screws using hex key.
3. Lift bellows/actuator assembly out of body.
4. Remove and discard the old bonnet and poppet o-rings.
–Avoid scratching the seal surfaces by using a plastic o-ring pick to remove the o-rings.
Reassemble valve
1. Clean the bonnet and poppet o-ring grooves using IPA soaked cleanroom wipe.
2. Wipe o-rings with IPA.
3. Blow-dry with CDA.
4. Evenly apply a light sheen of Krytox to both o-rings.
5. Install the o-rings.
6. Wipe off any excess Krytox with IPA.
7. Carefully install the sub-assembly into the body.
–Be sure that the body o-ring is seated into the groove.
8. Place a small amount of anti-seize onto the button head screws.
9. Insert and tighten down all four screws.
–Torque to 1.69 Nm. using a cross pattern.
10. Remove the vented screw and flat washer from the top cap.
11. Thread the air fitting into the stem to complete the valve.
7.3 Replacing or adding pilot valve
Required tools and materials
●2 mm hex key
●Lint-free gloves
●Plastic polyamide soft or polyurethane tubing
●Pilot vlave kit
Maintenance
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Prerequisites
●Dismount valve from the vacuum system
Remove pilot valve
1. Remove the poly tubing from the air fitting of the valve and the air fitting of the pilot valve.
2. Remove the pilot valve assembly from the bracket.
3. Remove the pilot valve bracket.
4. Use hex key to remove the two air fittings and air filter from the pilot valve.
Install pilot valve
1. Use hex key to install the two air fittings and air filter onto the pilot valve.
2. Install pilot valve bracket.
3. Attach the pilot valve assembly to the bracket.
4. Insert the poly tubing into the air fitting of the valve and the air fitting of the pilot valve.
Pilot valve test
1. Insert air supply line into the straight fitting on the pilot valve.
2. Apply 4000 - 7000 hPa air pressure.
–Valve should not open until power is applied.
–Verify valve opens when power is applied and closes when power is removed.
–Alternately you can actuate the pilot valve by pressing the manual actuation button.
7.4 Replacing or adding position indicator
●Position indicators are mounted on a printed circuit board which is located in a pre-
formed slot in the top housing of the valve.
●The label on top of the valve must be removed to access the position indicator.
●Do not wear latex gloves when handling boards.
Required tools and materials
●Lint free gloves.
●Position indicator kit.
Remove position indicator
1. Remove air fitting, if installed.
2. Remove the label to access the position indicator card slot.
–Replacement label is included in the kit.
Install position indicator
1. Install the sensor board with the optics toward the stem and the electrical connector located at the
top of the valve facing away from the stem.
2. Place label onto valve so that the electrical connector is accessible through the opening in the la-
bel.
3. Reinstall the air fitting.
4. Connect position indicator cable.
–Black wire is ground
–Green wire is closed
–White wire is open
–Red wire is +24 V DC
5. Connect air line for normal valve operation.
–When the valve is in the open position the "I" led should illuminate on the valve.
–When the valve is in the closed position the "0" led should illuminate on the valve.
Maintenance
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8 Decommissioning
Required tools and materials
●Lint-free gloves
●Protective covers for the valve flanges
Prerequisites
●Vacuum system vented
●Control system off
●Valve closed
Procedure
1. Loosen the power supply connector and unplug it.
2. Disconnect the air tube.
3. Remove the valve from the vacuum system.
4. Install the protective lids.
Decommissioning
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9 Recycling and disposal
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
►Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
►Decontaminate affected parts before carrying out maintenance work.
►Wear protective equipment.
Environmental protection
You must dispose of the product and its components in accordance with all applicable reg-
ulations for protecting people, the environment and nature.
●Help to reduce the wastage of natural resources.
●Prevent contamination.
Environmental protection
The product and its components must be disposed of in accordance with the applica-
ble regulations relating to environmental protection and human health, with a view to
reducing natural resource wastage and preventing pollution.
9.1 General disposal information
Pfeiffer Vacuum products contain materials that you must recycle.
►Dispose of our products according to the following:
–Iron
–Aluminium
–Copper
–Synthetic
–Electronic components
–Oil and fat, solvent-free
►Observe the special precautionary measures when disposing of:
–Fluoroelastomers (FKM)
–Potentially contaminated components that come into contact with media
Recycling and disposal
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