Pfeiffer Vacuum DVB Series Manual de usuario
Operating Instructions
BP 805 249 BE / A (0306) 1
Inline Valve
pneumatically actuated, bellows sealed
with position indicator and pilot valve
normally open
DVB 16 … 40 PX
BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet 2
In all communications with Pfeiffer Vakuum, please specify the information on the
product nameplate. For convenient reference copy that information into the space
provided below.
Pfeiffer Vacuum, D - 35614 Asslar
Typ:
No:
F-No:
Nominal voltage
This document applies to products with the following part numbers:
DN 16 ISO-KF DN 25 ISO-KF DN 40 ISO-KF Nominal voltage
(pilot valve) N.O.
PFD38233 PFD48233 PFD58233 24 VDC (=)
The part number (No) can be taken from the product nameplate.
If not indicated otherwise in the legends, the illustrations in this document cor-
respond to the valve with the vacuum connection DN 25 ISO–KF. They apply to
valves with other vacuum connections by analogy.
We reserve the right to make technical changes without prior notice.
All dimensions are indicated in mm.
The inline valves are used as shut-off and venting devices for vacuum applications.
Product Identification
Validity
Intended Use
BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet 3
Contents
Product Identification 2
Validity 2
Intended Use 2
1 Description 4
1.1 Overview 4
1.2 Functional Principle 5
2 Safety 6
2.1 Symbols Used 6
2.2 General Safety Instructions 6
2.3 Liability and Warranty 6
3 Technical Data 7
4 Installation 9
4.1 Vacuum Connection 9
4.2 Compressed Air Connection 10
4.2.1 Compressed Air Inlet 11
4.2.2 Compressed Air Outlet 12
4.3 Power Connection 12
5 Operation 16
6 Deinstallation 17
6.1 Power Connection 17
6.2 Compressed Air Connection 18
6.3 Vacuum Connection 19
7 Maintenance and Repair 20
7.1 Disassembling the Product 21
7.2 Checking and Cleaning the Parts 31
7.3 Reassembling the Product 32
8 Spare Parts 42
9 Returning the Product 44
10 Disposal 44
Declaration of Contamination 45
4BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet
1 Description
Vacuum connection
DN 16 ISO-KF
DN 25 ISO-KF
Position indication
(visual)
Position indicator
(electrical)
Connector
(enclosed)
Pilot valve
Pneumatic
actuator
Compressed air
outlet
Compressed air
inlet
Instant push-in
fittings (enclosed)
1x 2x
Caution
The compressed air inlets and outlets of the angle valves with vacuum
connection DN 40 ISO-KF and serial number (F-No) from 4470138 are
reversed in position.
Vacuum connection
DN 40 ISO-KF
Position indication
(visual)
Position indicator
(electrical)
Connector
(enclosed)
Pilot valve
Pneumatic
actuator
Compressed air
outlet
Compressed air
inlet
Instant push-in
fittings (enclosed)
1x 2x
1.1 Overview
DN 16 ISO-KF
DN 25 ISO-KF
DN 40 ISO-KF
BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet 5
When the pilot valve is deactivated, the inline valve is opened by the pneumatic
actuator. The position indicator becomes visible.
Pneumatic actuator
for opening the valve
Pilot valve
not activated
Position indicator
"valve open"
activated
Position indicator
visible
Compressed air:
outlet
inlet
When the pilot valve is activated, the inline valve is closed by the pressure spring.
The position indicator ist invisible.
Pilot valve
activated
Compressed air:
outlet
inlet
Bellows
sealing the valve
Position indicator
"valve closed"
activated
Pressure spring
for closing the valve
Position indicator
invisible
Pneumatic
actuator
1.2 Functional Principle
Opening action
Closing action
6BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet
2 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 ...
· Adhere to the applicable regulations and take the necessary precautions for the
process media used.
Consider possible reactions between the materials (®28) 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.
Pfeiffer Vacuum assumes no liability and the warranty becomes null and void if
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
· use the product with accessories, options and add-ons not listed in the
corresponding product documentation.
The end-user assumes the responsibility in conjunction with the process media
used.
2.1 Symbols Used
2.2 General Safety
Instructions
2.3 Liability and Warranty
BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet 7
3 Technical Data
Connection
Type
Nominal voltage
Power
Duty cycle
Nominal diameter
soldered joints
normally open
see product nameplate
1 W
100%
0.5 mm
Connection
Rating
soldered joints
250 VAC / 25 VA / 0.1 A
50 VDC / 12.5 W / 0.25 A
Connection flange DN 16 ISO-KF DN 25 ISO-KF DN 40 ISO-KF
Actuation opening: pneumatic
closing: by pressure spring
Tube connection ø4 mm or ø6 mm
Pressure range (overpressure) 3 ... 5 bar 3 ... 6 bar
Piston displacement 5.5 cm312.1 cm326.2 cm3
Stroke of valve plate 5 mm 10 mm 14 mm
Conductance 1) 2.5 l/s 8 l/s 20 l/s
Switching frequency 2)
Opening time 2)
Closing time 2)
100 / min
100 ms
200 ms
100 / min
110 ms
290 ms
75 / min
150 ms
250 ms
Cycle life 3) 10 million
Tightness 1×10-9mbar l/s
Pressure range min. 1×10-8mbar
Pressure range max. (abs.) 4 bar 2.5 bar
In closing direction
In opening direction
Opens to a pressure difference
Dp 4)
4 bar
2 bar
4 bar
2 bar
1.5 bar
2 bar
Ambiance
Bakeout
Body
actuator
pilot valve
0 °C ... 50 °C
150 °C
50 °C
50 °C
Type of protection
Protection class
IP 50 according to DIN 40 050
II
Installation angle
Flow direction
any
any
Pilot valve
Electrical position indicator
Vacuum connection
Compressed air supply
Pressure difference Dp
Temperatures
8BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet
Connection flange DN 16 ISO-KF DN 25 ISO-KF DN 40 ISO-KF
Body
Bellows / valve plate
Pressure spring
DN 16+25 ISO-KF
DN 40 ISO-KF
Seals
Shell
Cylinder unit
Protective lids
Packing material
1.4301
1.4541 / 1.4301
1.4301
1.1200
FPM
ABS-V0
PA6-V0
PE
carton box, PE, PU
Weight 0.44 kg 0.9 kg 1.52 kg
1) For air with molecular flow
2) With pressure difference Dp=0 and compressed air = 5 bar (overpressure)
3) Cycles without expendable parts (seals) and under clean operating conditions
4) Compressed air = 5 bar (overpressure)
1x
2x
DN 16 ISO-KF
DN 25 ISO-KF
DN 40 ISO-KF
A
135.9
157.4
177
B
108.9
128.9
147.8
C
53
74
92.5
D
22
31.5
45.5
E
80
100
130
DN F G
60
74
98
51
63
83
H
100
108
120
DN
DN
M5
Materials
Weight
Dimensions
BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet 9
4 Installation
Skilled personnel
The vacuum connection may only be established by persons who have
suitable technical training and the necessary experience or who have
been instructed by the end-user of the product.
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 clamps which are suited to overpressure.
Caution
Caution: dirt sensitive area
Touching the product or parts thereof with one's bare hands increases
the desorption rate.
Always wear clean, lint-free gloves and use clean tools when working
in this area.
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.
Keep the protective lids.
4.1 Vacuum Connection
Personnel qualifications
Overpressure 1 bar
Dirt sensitive area
Handling of vacuum compo-
nents
Protective lids
10 BP 805 249 BE / A (0306) DVB 16 … 40 PX.bet
Remove the protective lids and install the valve to the vacuum system by means of
the small flange fittings.
Any installation angle and flow direction may be chosen.
Seal with
centering ring
Clamp
ISO-KF connection
flange Protective lid
Skilled personnel
The compressed air connection may only be established by persons
who have suitable technical training and the necessary experience or
who have been instructed by the end-user of the product.
Caution
Specifications for the compressed air:
· free of particles >5 µm
· DN 16 and DN 25 ISO-KF: 3 … 5 bar overpressure
DN 40 ISO-KF: 3 … 6 bar overpressure
· dry, free of oil or containing oil (Keep using the same quality).
If using compressed air which contains oil, dispose of it in accordance
with the relevant regulations.
Caution
The plastic tube must meet the following specifications:
· bursting pressure ³10 bar overpressure
· material: PA soft or PU.
Caution
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.
Vacuum connection
4.2 Compressed Air
Connection
Personnel qualifications
Specifications for compressed
air
Specifications for plastic tube
Tightness of connection
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