The use of a flexible'member in the manner set forth above offers the possibility of incorporating both the piston and needle valve in one unit owing to its comparatively long valve stem travel. This results in a regulator which is comparatively simple and compact in construction and one which...
3. The valve assembly of claim 2 wherein each actuating means is a piston actuator including a stem means aligned with movement of the check valve means arranged to engage the latter, said valve housing including means for communicating each piston actuator with source pressure when the check va...