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Pneumatic Control Valve- Mark 708 Series
Mark 708 – a complete line of pneumatic and electric control valves developed specifically for the unique properties and conditions encountered in fractional flow services.
1/4" Mark 708 Series Short Pattern
A valve that offers Cv’s ranging from 0.00001 through 0.2 (0,000009 to 0,17 Kv in DN8).
Mark 708 with bellows stem seals that eliminate fugitive emissions
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.
Mark 708 for cryogenic service
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.
Fractional Flow Control Valve with double packing - Mark 708DP Series
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 - Mark 708HP
A 8,000 psi (552 bar) maximum inlet fractional flow control valve.
A 12,000 psi maximum inlet fractional flow control valve - MK708HPA Series
A 12,000 psi maximum inlet fractional flow control valve.
Pneumatic Control Valve with Finned Bonnet - Mark 708HT Series
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.
Three Way Control Valve - Mark 709 Series
A lightweight control valve for use as a mixing valve in low flow process applications.
Heavy-duty fractional flow control valve - 8000 Series
A group of heavy-duty control valves specifically designed for process applications requiring full flow or fractional flow control.
Mixing or diverting three way control valve - 8000T Series
The three-way Mark 8000T can be specified for use on mixing or diverting services.
Heavy duty control valve with bellow stem seals
The 8000 Series with bellows stem seals eliminates fugitive emissions by surround the valve stem with a barrier.

 

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