Pfeiffer Vacuum EVI 005 PI Operating Instructions

A P A S S I O N
F O R P E R F E C T I O N
EVI 005 PI
Insert Valve, pneumatically operated, bellows
sealed
Operating Instructions
Product Identification
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.
Pfeiffer Vacuum, D-35614 Asslar
Type:
No:
F-No:
Validity
This document applies to products with part number
PF H15 043.
The part number (No) can be taken from the product name-
plate.
We reserve the right to make technical changes without prior
notice.
If not indicated otherwise in the illustrations, the dimensions
are in mm.
Intended Use
The Insert Valve is universally used in vacuum systems.
Functional Principle
The EVI 005 PI is opened pneumatically and closed by the
prestressed pressure spring.
It closes automatically in the event of a compressed air
failure.
Scope of Delivery
1× valve
1× O-ring, FPM, ø18.77×1.78
Safety
Symbols Used
DANGER
Information on preventing any kind of physical injury.
WARNING
Information on preventing extensive equipment and en-
vironmental damage.
Caution
Information on correct handling or use. Disregard can lead
to malfunctions or minor equipment damage.
Personnel Qualifications
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.
General Safety Instructions
• Adhere to the applicable regulations and take the nec-
essary precautions for the process media used.
Consider possible reactions between the materials
( → "Technical Data") and the process media.
• Adhere to the applicable regulations and take the nec-
essary 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 contaminated. Adhere to the relevant
regulations and take the necessary precautions when
handling contaminated parts.
Communicate the safety instructions to all other users.
Liability and Warranty
Pfeiffer Vacuum assumes no liability and the warranty be-
comes 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
• use the product with accessories not listed in the corres-
ponding product documentation.
The end-user assumes the responsibility in conjunction with
the process media used.
Failures due to contamination or wear and tear, as well as
expendable parts (e.g. seals), are not covered by the
warranty.
Technical Data
Nominal diameter ø5 mm
Vacuum connection with 4 cap screws
Conductance for air
1)
molecular flow 0.4 l/s
1)
laminar flow 4 l/s
Mounting orientation any
2)
Switching frequency max. 150 / min
Cycles to first overhaul ≈ 1,500,000
-9
Tightness 1×10 mbar l/s
Resistance to pressure 4 bar (absolute)
-8
Operating pressure 1×10 mbar ... 3 bar
Pressure difference Δ p
In closing direction 3 bar
In opening direction 3 bar
Opens to a pressure
difference p of 3 bar (
Δ
Compressed air:
overpressure 4 bar)
4)
Closing time 35 ms
4)
Opening time 35 ms
Compressed air
Connection instant push-in fitting ø4 mm
Pressure range 4 ... 8 bar overpressure
Purity classes 2 4 1 (ISO 8573-1)
3
Volume 0.24 cm
Temperatures
5)
Ambiance 5 ... 80 °C
Bakeout 150 °C (actuator 80 °C)
Materials
Bellows stainless steel 1.4301
Actuator anodized aluminum
Seals FPM
Weight 0.1 kg
1)
Depending on customer's connection.
2)
With pressure difference Δp = 0 bar.
3)
Under clean operating conditions.
If the valve is operated under harsh or dirty conditions, it
should be cleaned / maintained before the specified service
time to maintenance has been reached.
4)
Δp = 0, compressed air: 4 bar overpressure
5)
–15 °C, if the ambiance is free of condensable gases.
Dimensions [mm]
Can be rotated in
Version A
steps of 90°
Can be rotated in
Version B
steps of 90°
30.5
29
Flow direction
Compressed air inlet
Protective lid
3)