Abstract: There is disclosed a valve comprising a valve body, a bonnet, a bellows assembly and a translator assembly. The bellows assembly comprises a bellows and a bellows flange. The bellows flange is positioned between the bonnet and the valve body. The bellows flange defines a bellows flange opening, around which the bellows is attached. The translator assembly extends through the bellows flange opening. The bellows is attached to a periphery of the translator assembly. The invention also provides a power generating system comprising at least one turbine and at least one combustion system which comprises at least one fuel supply, at least one combustion canister, and at least one valve according to the present invention. There is also provided a method of constructing a valve.