2
UK
Installation instructions for P1VAS motors
1. Motor housing material
Motors are made from the materials shown below. Since
they might be used in very aggressive environments, it is
strongly recommended that test are conducted to ensure their
suitability. If in doubt please contact customer service
.
Material specification:
Air motors P1VAS Series
Planetary gearbox for: Stainless Steel
All other housings
Stainless steel
Spindle
Hardened stainless steel
Key
Hardened stainless steel
External seal
Fluor rubber, FPM
Internal steel parts
High grade steel (not stainless)
Planetary gear grease USDA-H1 approved
Key and Shaft
High grade steel (not stainless)
Screws in housing
in last planet stage
Surface treated steel (not stainless)
Flange bracket
Stainless steel
Foot bracket
Stainless steel
Screws for bracket
Stainless steel DIN A2
2. Interior component material in motor
The interior components of the motor are made from high
grade non-stainless steel (most components are hardened)
and the gearbox is greased with a grease which is USDA-H1
approved (for use in the foodstuffs industry).
Since all components are made from non-stainless steel, it is
important to use the correct grade of compressed air to avoid
corrosion inside the motor. Corrosion causes increased friction,
increased component wear and considerably shortens the
service life of the motor.
3. Compressed air quality
Oil and oil mist are avoided whenever possible to ensure a clean
work environment. In addition, purchasing, installation and
maintenance of oil mist equipment can be expensive. All users
in all industries now try to avoid using components which have to
be lubricated.
The P1VAS motor is equipped with vanes for intermittent
lubrication free operation as standard, which is the most
common application of air motors. The motor is also available
with optional hard vanes for continuous lubrication-free operation
(optional function “C”).
The P1VAS motor is equipped as standard with food grade
grease in the planetary gearbox. An oil which is approved by
the food industry is also available if supplementary lubrication is
required.
Working pressure
Max 7 bar (max 6 bar
in explosive atmospheres )
Working temperature
-20 °C to +110 °C
Ambient temperature
(-20 °C to +40 °C
in explosive atmospheres )
Medium
40 µm filtered, oil mist or
dry unlubricated compressed air
Dry unlubricated compressed air
If unlubricated compressed air is used, the compressed
air should comply with the purity standards below in order
to guarantee the longest possible overall service life. If the
unlubricated compressed air has a high water content,
condensation forms inside the motor, causing corrosion in
all internal components. A ballbearing can be destroyed in a
remarkably short time if it comes into contact with a single
water droplet.
For indoor use, we recommend ISO8573-1 purity class 3.4.1.
To achieve this, compressors must be fitted with aftercoolers,
oil filters, refrigerant air dryers and air filters.
For indoor/outdoor use, we recommend ISO8573-1 purity
class 1.2.1. To achieve this, compressors must be fitted with
aftercoolers, oil filters, adsorption dryers and dust filters.
Oil mist
If oil mist is used (approx. 1 drop of oil per m³ of compressed
air), the oil not only acts as a lubricant but also protects against
corrosion. This means that compressed air with a certain water
content may be used without causing corrosion problems
inside the motor.
ISO8573-1 purity class 3.-.5 may be used without difficulty.
The following oils are recommended for use in the foodstuffs
industry: Shell Cassida Fluid HF 32 or Klüberoil 4 UH 1-32
ISO 8573-1 purity classes
Quality
Contaminants
Water
Oil
class
particle
max. con-
max. pressure max. con-
size
centration
dew point
centration
(µm)
(mg/m³)
(°C)
(mg/m³)
1
0,1 0,1
-70
0,01
2
1 1
-40 0,1
3
5 5
-20 1,0
4
15 8
+3 5,0
5
40 10
+7
25
6
- - +10
-
For example: compressed air to purity class 3.4.3
This means a 5 µm filter (standard filter), dew point +3 ºC (refrigerant
cooled) and an oil concentration of 1,0 mg oil/m³ (as supplied by a
standard compressor with a standard filter).
