The valve is suitable for the actuation of butterfly valves, cylinders, diaphragm drives and rotary drives.It is also suited for emergency shut-down functions and for safety-orientated systems up to Safety Integrity Level 4 as per IEC 61508.
The VOFDs have a titanium dioxide plated surface which gives a high abrasion resistance and makes it resilient within highly aggressive and chemical atmospheres. Furthermore, it is available with several Ex-protection methods to best serve the needs of each application and it provides ATEX protection for zone 1/21.
The 3/2-way valve ensures that no atmosphere or environmental contaminants such as dust, ice or snow can enter the valve and degrade the exhaust.This ensures it provides a long service life even in demanding applications.
With the VOFD, internal and external pilot air functions have been integrated in a single valve and it can be converted by turning a screw depending on the function required.The valve has two connection options: a NAMUR-port for direct installation on an actuator as well as G and NPT threads for in line connection. The NAMUR interface valves are said to be quick and easy to install.
