3.6 Noise level
VL
3.0 TECHNICAL INFORMATION
2
VAL.130.--.M.EN Issue: A1
09.16
13
The noise level of the
VIB
valve operating on empty does not exceed 50 dB(A), the value measured at a dis-
tance of 1m, in the most unfavourable position.
This may vary according to the type of material handled and the type of actuator applied.
Danger - Warning
Depending on the installation site, the installer must adopt suitable systems (barriers, etc.), if neces-
sary, to maintain the noise levels within the legally permitted limits.
3.7 Environmental operating limits
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- Altitude: less than 1,000 m at sea level
- Environmental temperature: between - 20 °C and + 40 °C
Maximum temperature of dusts: +80 °C continuous, +90 °C for short time intervals (maximum of 1 minute).
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affected by extremely high temperatures, it leads to loss of material and formation of potentially explosive
hazardous mixtures.
- Cold climates: with temperature less than 5 °C use oil and lubricants suitable to the operating temperature.
It is forbidden using the seal adjustment in the absence of wear or leakage problems.
It is forbidden washing / cleaning the valve using high pressure devices.
It is forbidden to use the slide valve for hot materials with temperatures exceeding 60°C and cold materials
with temperatures below - 20°C.
It is forbidden to disassemble the valve or its components if material is present upstream the valve.
It is forbidden using the hammer on the aluminium valve body.
VIB
- type Slide Valves are dust proof but they are NOT pressure proof.
NOTE:
Depending on the type of plant, the valve can be operated either manually, electropneumatically or by
a gear motor. In the two latter versions the valve is controlled by a remote control panel or by a local
starter.
The weight of the material column must not exceed the resistance of the mobile valve parts.
Materials with bulk density < 1.3 t/m³ normally do not create any problem. When dealing with materials with
higher bulk density check with WAMGROUP customer service.
