CPC F16K 31/1221 (2013.01) [F16K 3/0254 (2013.01); F16K 31/122 (2013.01); Y10T 137/6072 (2015.04)] | 20 Claims |
1. A valve actuator assembly comprising:
an actuator housing configured to couple to both a bonnet and a housing lid;
a cylinder included in the actuator housing and configured to couple to the bonnet;
a port to fluidly couple the cylinder to a hydraulic fluid source;
a piston included in the cylinder and coupled to a shelf;
a spring included in the actuator housing and having first and second spring ends, the first spring end being configured to couple to a surface of the housing lid and the second spring end being coupled to the shelf; and
an operating stem coupled to the piston, included in a channel, configured to extend through the bonnet, and configured to couple to a valve body assembly.
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