Steam Valve spring

FredR

"The valve stem is butted next to linkage end & but they are not attached to each other."

The linkage must be connected to the actuator. The linkage shown is obsolete,if any part of the linkage is broken,you will have to buy the replacement linkage. Try to find a supply house that carries or can order the replacement linkage for you. You will need valve stem travel and system pressure to select the right linkage.
BTW the linkage provides valve close off pressure and the actuator spring returns the actuator to its fail/stop position.

BAB

Jenkins Steam Valve parts

I have some 2" and 2 1/2" Jenkins modulating steam valves. They are actuated with Honeywell motors. Everything runs just fine except I have one with a weak spring return action. Where can I get replacement springs for the disc in the valve? I am in Springfield, MA but will buy anywhere.

Since the valves are 50-70 years old the supply counter jockeys look at me cross eyed when I ask for spring repair kits. see "Attachment" for picBromley

FredR

The actuator(motor)should have a spring and provide the needed action to close the valve. Any spring in the valve is used for pressure on the packing. Do you have the correct and proper action (no/nc) actuator?

Bernie Riddle_2

definitely the spring

Yes, the action on the Honeywell actuator is fine. There is a return action in the Honeywell actuator setup. Actually there is a cam action & linkage assembly that pushes the valve stem in to open the valve, then the linkage retracts when the valve is to close. The valve stem is butted next to linkage end & but they are not attached to each other. When the interior valve spring becomes brittle & breaks or when the interior valve spring becomes fatigued they loose their spring power. Either way the spring has to be replaced. Bromley

BAB

Steam Valve Spring

Yes the actuator linkage is obsolete but works just fine. I have four other valves all with the same linkage setup. The Jenkins valve is also obsolete. I did a "search" on this site & Jenkins replacement parts are none existant. But I do like your comments & the guy that commented before you also. I can easily make a valve stem to actuator end connector. The connector will take advantage of the actuator return stoke action needed to close my defective valve. This approach may be better than removing an exhaust fan in the way & using my 48" pipe wrench complete with a cheater to open the Jenkins valve.