Description

The VIP is a pneumatic axial valve exclusively patented by OMAL. It contains, in a single device, both the interception and the automation system: Actuator and valve are therefore integrated into one product. For this reason it can be very compact: about 60% smaller than an automated ball valve.
As consequence plant-related costs are also much lower. Moreover, the internal fluid dynamics are optimized, allowing a flow with minimum pressure losses.
The VIP valve lasts 10 times longer than a ball valve. Its long life guarantees reduced maintenance costs.
The maximum reduction of the friction between the elements and the double lip seals plus O-ring, allow a considerable reduction of wear; while the piston with chemical nickel plating also guarantees greater protection against corrosive agents, and lower wear due to the increase in surface hardness. The various seals also allow maximum compatibility with different types of fluids.
Finally, the absence of external moving parts facilitates its mounting in any position and drastically reduces the risk of accidents.

The VIP allows a saving of 80% in supply-air consumption, thanks to the limited volume of the pilotage chambers compared to an actuated valve with a single-acting actuator. This leads to a lower load on the compressor or the possibility of using a compressor of a smaller size, allowing a considerable economic saving.
The VIP is PED and (upon request) ATEX certified. It is therefore fully compliant with European safety standards for pressure devices and can be installed in the presence of a potentially explosive environment.

Features:
Both Double Acting and Spring Return VIP valves (either Normally Open or Normally Closed) are available in sizes ranging from 3/8” to 2”.

Unidirectional flow.

GAS threaded ends as per UNI/ISO 7/1 Rp - DIN 2999 (NPT threads on request) with control fluid connections as per NAMUR interface.

Improved fluid dynamics allow minimum pressure losses. See Flow Pressure Diagram.

VIP valves can be used in any mounting position (horizontal, vertical or oblique). They can be provided with seals in NBR, FKM or EPDM:

NBR: suitable for air, gas, oils, water etc..
FKM: perfectly suitable for most fluid. Unsuitable for steam.
EPDM: perfectly suitable for hot water and steam. Unsuitable for mineral products (oils, grease, etc..).

For further information about gas, explosive fluids, material compatibilities etc. please contact our technical department.

Valve opening and closing can be signalled by means of external magnetic limit switches (to be requested on ordering the valves, as they cannot be assembled afterwards).

According to 97/23 EC “PED” - ATEX version in conformity with directive 94/9/EC (to request at time of order)

Control Media:
Filtered compressed air, not necessarily lubricated. At temperatures from -20°C to 0°C, use dry air. In case of lubricated air, seal compatible oil must be used.

Air supply: 

3 bar min.- 8 bar max. in Double Acting execution

4,2 bar min.- 8 bar max. in Spring Return execution.

Operating Media: 

Pressure: 10 bar max, see diagram

Temperature:
from -20°C to +80°C (NBR);
from -20°C to +150°C (FKM);
from -20°C to +150°C (EPDM).
Vacuum tightness: 740 mm Hg