Pfeiffer Vacuum EVB 016 PA User manual

Operating Instructions
BP 805 256 BE (0205) 1
Angle Valve
pneumatically operated
bellows sealed
without position indicator, without pilot valve
EVB 016 PA … 040 PA
EVB 016 PX … 040 PX

2BP 805 256 BE (0205) EVB016-A…040-A.oi
In all communications with Pfeiffer Vacuum, please specify the information on the
product nameplate. For convenient reference copy that information into the space
provided below.
Typ:
No:
F-No:
Pfeiffer Vacuum, D-35614 Asslar
This document applies to products with the following part numbers:
PFA35003
PFA45003
PFA55003
(DN 16 ISO-KF)
(DN 25 ISO-KF)
(DN 40 ISO-KF)
PFA35033
PFA45033
PFA55033
(DN 16 ISO-KF)
(DN 25 ISO-KF)
(DN 40 ISO-KF)
The part number (No) can be taken from the product nameplate.
If not indicated otherwise in the legends, the illustrations in this document corre-
spond to the valve with the nominal diameter DN 25 ISO-KF. They apply to valves
with other nominal diameters by analogy.
We reserve the right to make technical changes without prior notice.
If not indicated otherwise, the dimensions are given in mm.
The Angle valves are used as shut-off or venting devices for vacuum applications.
When compressed air is admitted to the Angle valve, it opens.
When the compressed air pressure drops, the Angle valve is closed by a pressure
spring.
Product Identification
Validity
EVB 016 PA … 040 PA
(aluminum housing)
EVB P016 PX … 040 PX
(stainless steel housing)
Intended Use
Functional Principle

BP 805 256 BE (0205) EVB016-A…040-A.oi 3
Contents
Product Identification 2
Validity 2
Intended Use 2
Functional Principle 2
1 Safety 4
1.1 Symbols Used 4
1.2 Personnel Qualifications 4
1.3 General Safety Instructions 4
1.4 Liability and Warranty 5
2 Technical Data 6
3 Installation 8
3.1 Orientation of the Actuator 8
3.2 Vacuum Connections 10
3.3 Compressed Air Connection 11
4 Operation 13
5 Deinstallation 15
6 Maintenance 17
6.1 Replacing the Valve Plate and the Seal of the Housing 17
7 Spare Parts 21
8 Consumables 21
9 Returning the Product 22
10 Disposal 22
Declaration of Contamination 23

4BP 805 256 BE (0205) EVB016-A…040-A.oi
1 Safety
DANGER
Information on preventing any kind of physical injury.
WARNING
Information on preventing extensive equipment and environmental damage.
Caution
Information on correct handling or use. Disregard can lead to malfunctions or
minor equipment damage.
®2See page ...
Skilled personnel
All work described in this document may only be carried out by persons who
have suitable technical training and the necessary experience or who have been
instructed by the end-user of the product.
· Adhere to the applicable regulations and take the necessary precautions for the
process media used.
Consider possible reactions between the materials (®26) and the process
media.
· Adhere to the applicable regulations and take the necessary precautions for all
work you are going to do and consider the safety instructions in this document.
· Before beginning to work, find out whether any vacuum components are con-
taminated. Adhere to the relevant regulations and take the necessary precau-
tions when handling contaminated parts.
Communicate the safety instructions to all other users.
1.1 Symbols Used
1.2 Personnel Qualifications
1.3 General Safety
Instructions

BP 805 256 BE (0205) EVB016-A…040-A.oi 5
Pfeiffer Vacuum assumes no liability and the warranty becomes null and void if the
end-user or third parties
· disregard the information in this document
· use the product in a non-conforming manner
· make any kind of interventions (modifications, alterations etc.) on the product
The end-user assumes the responsibility in conjunction with the process media
used.
1.4 Liability and Warranty

6BP 805 256 BE (0205) EVB016-A…040-A.oi
2 Technical Data
Connection flanges DN 16 ISO-KF DN 25 ISO-KF DN 40 ISO-KF
Actuation opening: pneumatic
closing: by pressure spring
Compressed air supply
tube connection
pressure range
ø4 mm or ø6 mm
3 … 8 bar overpressure
displaced volume 5.5 cm312.1 cm326.2 cm3
Stroke of valve plate 5 mm 10 mm 14 mm
Conductance 1) 4.5 l/s 16 l/s 40 l/s
Switching frequency 2)
Opening time 2)
Closing time 2)
100 / min
100 ms
100 ms
100 / min
150 ms
150 ms
75 / min
250 ms
250 ms
Uptime 3) 10 million cycles
Tightness 1×10-9 mbar l/s
Pressure range (abs.) 1×10-8 mbar …
… 2 bar … 1.5 bar
Resistance to pressure (abs.) 4 bar 2.5 bar
Pressure difference Dp
in closing direction
in opening direction
Opens
to pressure difference Dp 4)
4 bar
2 bar
4 bar
2 bar
1.5 bar
2 bar
Temperatures
operation
ambiance
bakeout
aluminum housing
stainless steel housing
actuator
£50 °C
0 … 50 °C
80 °C
150 °C
50 °C
Mounting orientation
Flow direction
any
any
Materials
housing
EVB 016 PA … 040 PA
EVB 016 PX … 040 PX
bellows
valve plate
seals
aluminum (3.2381)
stainless steel (1.4301)
stainless steel (1.4541)
stainless steel (1.4301)
FPM75
Weight
EVB 016 PA … 040 PA
EVB 016 PX … 040 PX
0.25 kg
0.40 kg
0.55 kg
0.80 kg
1.25 kg
2.00 kg
1) For air with molecular flow.
2) With pressure difference Dp = 0, compressed air = 5 bar overpressure,
pilot valve (3/2 way) with nominal diameter 2 mm and 1 m tube with OD 4 mm.
3) Cycles without expendable parts (seals) and under clean operating conditions.
4) Compressed air = 5 bar overpressure.

BP 805 256 BE (0205) EVB016-A…040-A.oi 7
DN 16 ISO-KF
DN 25 ISO-KF
DN 40 ISO-KF
A
104.2
135.3
161.5
B
77.5
101.3
119.5
C
42
56
80
D
40
50
65
DN
included
DN
DN
Compressed air in- and outlet
Protective lid
Dimensions [mm]

8BP 805 256 BE (0205) EVB016-A…040-A.oi
3 Installation
DANGER
Caution: overpressure
Obstructing the bore hole can cause injuries by catapulted parts (e.g.
cover).
Make sure the bore hole is not obstructed.
Cover
Bore hole for air
intake/exhaust
according to
displacement volume
For easy adaptation to the space requirements, the actuator is infinitely rotatable.
Press the actuator down and remove the hexagon socket set screws.
When the actuator is released, the pressure spring is partly
relieved, which causes the upper part of the actuator to rise by a
few millimeters.
4 hexagon socket set screws
Size 2
Upper part of the actuator
3.1 Orientation of the
Actuator
Rotating the actuator

BP 805 256 BE (0205) EVB016-A…040-A.oi 9
Lift the actuator and turn it into the desired position.
Put the actuator in place, press it down and secure it with the 4 hexagon
socket set screws.
4 hexagon socket set screws
Size 2

10 BP 805 256 BE (0205) EVB016-A…040-A.oi
DANGER
Caution: overpressure in the vacuum system >1 bar
Injury caused by released parts and harm caused by escaping process
gases can result if clamps are opened while the vacuum system is
pressurized.
Do not open any clamps while the vacuum system is pressurized. Use
the type of clamps which are suited to overpressure.
DANGER
Caution: overpressure in the vacuum system >2.5 bar
KF flange connections with elastomer seals (e.g. O-rings) cannot
withstand such pressures. Process media can thus leak and possibly
damage your health.
Use O-rings provided with an outer centering ring.
Caution
Caution: vacuum component
Dirt and damages impair the function of the vacuum component.
When handling vacuum components, take appropriate measures to
ensure cleanliness and prevent damages.
Caution
Caution: dirt sensitive area
Touching the product or parts thereof with bare hands increases the
desorption rate.
Always wear clean, lint-free gloves and use clean tools when working
in this area.
Remove the protective lids and install the product.
Any mounting orientation and flow direction may be chosen.
Seal with
centering ring
Clamp
ISO-KF connection flange Protective lid
Keep the protective lids.
3.2 Vacuum Connections

BP 805 256 BE (0205) EVB016-A…040-A.oi 11
p
DANGER
Caution: compressed air
Unprofessionally handling compressed air can cause physical injury.
Adhere to the relevant regulations and take the necessary precautions
when handling compressed air.
The standard product is equipped with an instant push-in fitting for a plastic tube
ø4 mm.
If you are using a ø6 mm plastic tube, exchange the instant push-in fitting.
Compressed air in- and outlet
Tightening torque 1 Nm
included
DANGER
Caution: moving parts
When the product is connected to the supply media, parts can start
moving. Moving parts can catch parts of the body and thus cause
injuries.
The 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
· bursting pressure ³10 bar (overpressure)
· material: PA soft or PU
3.3 Compressed Air
Connection
Exchanging the instant push-in
fitting
Connecting the plastic tube
Specifications for the plastic
tube

12 BP 805 256 BE (0205) EVB016-A…040-A.oi
To ensure leak tightness of the instant push-in fitting
· cut the plastic tube square
· make sure the outside of the plastic tube is not damaged.
Push the plastic tube into the instant push-in fitting until the mechanical stop is
reached. Check that it is correctly mounted by slightly pulling.
Compressed air in- and outlet
Plastic tube
· free of oil
· dry
· free of particles >5 mm
· 3 … 8 bar overpressure
The compressed air control system has to be supplied by the end-user.
To reach the opening and closing times indicated in the "Technical Data", a pilot
valve with a nominal diameter of ³1.2 mm is required.
If the nominal diameter of the pilot valve is >1.2 mm, the opening and closing time
are not affected because there is an orifice with a diameter of 1.2 mm in the Angle
valve.
Preparing the plastic tube
Inserting the plastic tube
Specifications of the
compressed air
Controlling the compressed air

BP 805 256 BE (0205) EVB016-A…040-A.oi 13
4 Operation
The product is ready for operation as soon as it has been installed.
open
closed
supplied
Compressed air Valve
not supplied
Caution
Caution: pressure difference
VACUUM
Closing direction
Dp
bar
p+Dp
p
bar
p
DN 16 ISO-KF and DN 25 ISO-KF
At Dp > 4 bar the valve may no longer be tight.
Avoid pressure differences Dp > 4 bar.
DN 40 ISO-KF
At Dp > 2 bar the valve may no longer be tight.
Avoid pressure differences Dp > 2 bar.
Caution
Caution: pressure difference
VACUUM
Opening direction
p
bar
Dp
bar
p+Dp
p
DN 16 ISO-KF and DN 25 ISO-KF
At Dp > 2 bar the valve opens.
Avoid pressure differences Dp > 2 bar.
DN 40 ISO-KF
At Dp > 1.5 bar the valve opens.
Avoid pressure differences Dp > 1.5 bar.
Valve position
Pressure difference Dp
in closing direction
Pressure difference Dp
in opening direction

14 BP 805 256 BE (0205) EVB016-A…040-A.oi
Caution
Caution: pressure difference
VACUUM
Opening
Dp
bar
p+Dp
p
bar
p
DN 16 ISO-KF and DN 25 ISO-KF
At Dp > 4 bar the valve cannot open.
Avoid pressure differences Dp > 4 bar.
DN 40 ISO-KF
At Dp > 2 bar the valve cannot open.
Avoid pressure differences Dp > 2 bar.
Opening against a pressure
difference Dp

BP 805 256 BE (0205) EVB016-A…040-A.oi 15
5 Deinstallation
DANGER
Caution: contaminated parts
Contaminated parts can be detrimental to health and environment.
Before beginning to work, find out whether any parts are contaminated.
Adhere to the relevant regulations and take the necessary precautions
when handling contaminated parts.
DANGER
Caution: compressed air
Physical injury can result if a pressurized compressed air line is dis-
connected.
Before doing any work, turn off the compressed air supply and relieve
the compressed air lines.
Caution
Caution: vacuum component
Dirt and damages impair the function of the vacuum component.
When handling vacuum components, take appropriate measures to
ensure cleanliness and prevent damages.
Caution
Caution: dirt sensitive area
Touching the product or parts thereof with bare hands increases the
desorption rate.
Always wear clean, lint-free gloves and use clean tools when working
in this area.
· Vacuum system vented
· Compressed air supply turned off
· Compressed air line not pressurized
Pull out the tube while depressing the thrust ring.
Thrust ring
Preconditions
Procedure

16 BP 805 256 BE (0205) EVB016-A…040-A.oi
Disassemble the small flange connections and place the protective lids.
Seal with
centering ring
Clamp
ISO-KF connection flange
Protective lid

BP 805 256 BE (0205) EVB016-A…040-A.oi 17
6 Maintenance
Under clean operating conditions, the product requires no maintenance during the
rated cycle life.
DANGER
Caution: contaminated parts
Contaminated parts can be detrimental to health and environment.
Before beginning to work, find out whether any parts are contaminated.
Adhere to the relevant regulations and take the necessary precautions
when handling contaminated parts.
Caution
Caution: vacuum component
Dirt and damages impair the function of the vacuum component.
When handling vacuum components, take appropriate measures to
ensure cleanliness and prevent damages.
The valve has been deinstalled (®215).
Press the actuator down and remove the hexagon socket set screws.
When the actuator is released, the pressure spring is partly re-
lieved, which causes the upper part of the actuator to rise by a
few millimeters.
4 hexagon socket set screws
Size 2
Upper part of the actuator
6.1 Replacing the Valve
Plate and the Seal of the
Housing
Precondition
Procedure

18 BP 805 256 BE (0205) EVB016-A…040-A.oi
·Lift the actuator.
·Carefully remove the seals of the valve plate and the housing without
damaging the sealing surface.
Caution
Caution: dirt sensitive area
Touching the product or parts thereof with bare hands in-
creases the desorption rate.
Always wear clean, lint-free gloves and use clean tools when
working in this area.
Seal of the valve plate
Seal of the housing
Sealing surface of the bellows
The seal of the housing is probably sticking to the sealing surface
of the bellows.

BP 805 256 BE (0205) EVB016-A…040-A.oi 19
Clean the bellows, the valve plate, the inside of the housing, and the sealing
surfaces.
DANGER
Caution: cleaning agents
Cleaning agents can be detrimental to health and environment.
Adhere to the relevant regulations and take the necessary pre-
cautions when handling and disposing of cleaning agents.
Consider possible reactions with the product materials (®26).
· Carefully clean the parts with a grease solving, non-scouring cleaner.
· After cleaning, the parts should preferably be rinsed with a lint-free cloth
soaked with alcohol and subsequently heated to »50 °C with an indus-
trial blower.
· Wipe the seals with a lint-free cloth slightly moistened with vacuum oil.
DN 16 ISO-KF, ø31.47×1.78
DN 25 ISO-KF, ø44.17×1.78
DN 40 ISO-KF, ø66.34×2.62
Sealing surface
Do not damage
the sealing surfaces Protective lid
Protective lid
Inside of the housing
DN 16 ISO-KF, ø15.88×2.62
DN 25 ISO-KF, ø25.07×2.62
DN 40 ISO-KF, ø39.69×3.53
O-ring,
FPM75
O-ring,
FPM75
Bellows
Valve plate
Reassembly:
Be careful to insert the O-ring level into the sealing groove without
twisting it.
Further information ®221.
Cleaning the valve / Replacing
seals

20 BP 805 256 BE (0205) EVB016-A…040-A.oi
Proceed in reverse order to reassemble the valve.
Caution
Caution: vacuum component
Dirt and damages impair the function of the vacuum compo-
nent.
When handling vacuum components, take appropriate meas-
ures to ensure cleanliness and prevent damages.
Caution
Caution: dirt sensitive area
Touching the product or parts thereof with bare hands in-
creases the desorption rate.
Always wear clean, lint-free gloves and use clean tools when
working in this area.
After reassembly, a few switching cycles should be performed in
order for the O-rings to perfectly adapt to the sealing surfaces.
Take the necessary precautions for this procedure.
Reassembling the valve