Pneumatic piston .26ak

Function

	Application of a pneumatic supplementary force in opening and closing direction
	No negative influence on the pure spring loaded safety valve functioning in case of a failure of the air supply (special spring)

Application

Can be mounted afterwards to all safety valves of the series Si 61/ 6302...06 or Si 81/83/8402...07

Design

	Piston with free run in direction to the spindle in case of a failure in the air supply
	Double piston with applied lifting air
	5 sizes