A fixed lever and pin assembly may include a lever body having a front end, a back end, and an arm connecting the front end and the back end. The front end of the lever body may be operatively coupled to a control element of a regulator. The arm may be adapted to operatively couple to an actuator of a regulator. A pin may be fixed to the front end of the lever body and may be disposed through the front end in a direction perpendicular to first and second parallel sides of the lever body. The fixed lever and pin assembly may be an integrated piece and the pin may prevent the lever body from moving independently from the pin.

In a gas fuel supply regulator, a valve lever a base end of which is firmly fixed to a valve body by a pin arranged on a side of a valve seat of a valve, a rear surface at a leading end of which is supported by a control pressure set spring, and on a surface of which a rod holding recessed part that holds a rod of a diaphragm is formed is slidably arranged, a valve body is opened by fuel of before pressure reduction which fuel is introduced from a fuel inlet to a pressure regulation chamber through the valve, the valve lever is slid, the diaphragm is operated through a coupling mechanism between the rod holding recessed part of the valve lever and the rod of the diaphragm, and pressure of the fuel in the pressure regulation chamber is reduced.

A fixed lever and pin assembly may include a lever body having a front end, a back end, and an arm connecting the front end and the back end. The front end of the lever body may be operatively coupled to a control element of a regulator. The arm may be adapted to operatively couple to an actuator of a regulator. A pin may be fixed to the front end of the lever body and may be disposed through the front end in a direction perpendicular to first and second parallel sides of the lever body. The fixed lever and pin assembly may be an integrated piece and the pin may prevent the lever body from moving independently from the pin.