Mark 708 – a complete line of pneumatic and electric control valves developed specifically for the unique properties and conditions encountered in fractional flow services.

A valve that offers Cv’s ranging from 0.00001 through 0.2 (0,000009 to 0,17 Kv in DN8).

The Mark 708 with bellows stem seals that eliminate fugitive emissions by surrounding the valve stem with a pressure-tight barrier, isolating the stem from the process fluid and preventing leakage to the atmosphere.

The Mark 708 for cryogenic service features a 9” bonnet extension that provides protection for the packing and actuator by preventing ice build-up, which can interfere with movement of the valve stem and affect valve performance.

The Mark 708 with double packing is an alternative to a bellows stem seal and is used when standard packing will not adequately contain the controlled media.

A 8,000 psi (552 bar) maximum inlet fractional flow control valve.

A 12,000 psi maximum inlet fractional flow control valve.

THe Mark 708HT Series has a cooling fin bonnet option for protection of the stem packing from elevated temperatures associated with steam, hot water and high temperature oil, gas and liquid services.

A lightweight control valve for use as a mixing valve in low flow process applications.

A group of heavy-duty control valves specifically designed for process applications requiring full flow or fractional flow control.

The three-way Mark 8000T can be specified for use on mixing or diverting services.

The 8000 Series with bellows stem seals eliminates fugitive emissions by surround the valve stem with a barrier.