Vulcan Offshore Tip #7: Steam Chest Valve Liners

Replaceable Steam Chest Valve Liners are standard equipment in all Vulcan Single and Differential Acting Pile Hammers These Valve Liners were adopted to provide easy means of replacing worn surfaces in the Steam Chest in lieu of reboring.

Given below in the table are the Serial Numbers and dates of the first hammer in each size to be equipped with Valve Liners. All hammers with Serial Numbers subsequent to those given for each size of Hammer are equipped with Valve Liners.

As changes take place. additional data will be provided.

Hammer Size	Serial Number & Date
Hammer Size	Onshore Std.	Onshore Cable	Offshore (Raised Steam Chest)	Offshore (Lowered Steam Chest)
#2	FG-5335/11-29-67
#1	FG-5280/10-23-67
06	FG-5465/12-21-67
106	FI-6180/4-21-69
08	FG-5205/9-11-67	GD-9200/12-4-74
010	FG-5240/9-27-67	GD9035/8-8-74		FJ-6700/6-26-70
014	FG-5345/12-16-67
016	FI-6335/7-15-69			FG-4075/4-4-67
020	FG-5190/8-19-67			FH-5530/2-24-68
030				FH-5645/4-19-68
040		FI-6240/5-8-69		FG-5330/12-8-67
340				GC-8245/2-12-73
540				GD-8800/5-22-74
060				FH-5555/6-15-68
360				GD-9025/7-19-74
560				GC-8445/7-18-73
3100				GE-9450/6-11-75
30C	FH-5520/2-12-68
50C	FG-5150/9-22-67	FH-5805/8-15-68
65C	FG-5300/11-2-67
80C	FG-4040/2-17-67
85C	FI-6100/1-7-69
100C	GA-7590/11-12-71
140C	FF-3005/1-20-67
200C	FH-5570/3-8-68		GA-7595/11-11-71

Note: This was never followed up on. But in reality there was no need to, as virtually any Vulcan hammer made after 1970 (those with a serial number starting with a “G”, “H” or “I”) had a valve liner. In addition to providing a replaceable wear surface, the valve liner eliminated the need to cut the valve stems custom for each hammer by providing a consistent location for the ports.

Vulcan’s serial number system is explained in Offshore Tip No. 016 — click here for details. More information on this topic is found in Vulcan Onshore Tip #19.