5030
Epic Contributor
- Joined
- Feb 21, 2003
- Messages
- 26,997
- Location
- SE Michigan in the middle of nowhere
- Tractor
- Kubota M9000 HDCC3 M9000 HDC
Hopefully, the OP learns how to spell Waukesha correctly.....lol
Kohler 10kw propane genset with Wakasha 4cyl.
rholmes69
Bronze Member
I can only give some insight to the LP/natural gas side of things.
The size of the regulator doesn't really make too much a difference. Many different manufacturers and they build various sizes dependent on its capacity needs. Very typically we see LP systems using copper tube because the supply pressure from propane tanks is much higher than natural gas. With LP/NG regulators, you typically will see a larger body size as they increase in BTU capacity. The regulator that you see in the picture might be specific to that motor in delivering the pressure (measured in water column, or w.c. abbreviated). It is likely going to be in the ¼ to ½ pound of pressure that is being fed into the carburetor (equivalent to a range of 6in w.c to 12in w.c.) depending on if it is NG or LP, with NG being the lower pressure side. The size of the gas line in this case, black iron which leads me to believe it is NG, is based upon what ever pressure from the supplying the gas utility, be it the propane tank or the NG company. While the pressure from an LP tank coming directly out of the tank valve is over 100 lb of pressure, it would have a regulator right there at the tank dropping that down anywhere from a half pound of pressure up to 15 to 25 lb, again dependent on how long ago it was installed. If it's a natural gas utility and the setup has been around for 20 plus years, it is likely a ½lb to 1psi delivery pressure. Modern day generators for whole houses will usually burn somewhere around 250k up to 500k of BTUs per hour, dependent on the load.
The size of the regulator doesn't really make too much a difference. Many different manufacturers and they build various sizes dependent on its capacity needs. Very typically we see LP systems using copper tube because the supply pressure from propane tanks is much higher than natural gas. With LP/NG regulators, you typically will see a larger body size as they increase in BTU capacity. The regulator that you see in the picture might be specific to that motor in delivering the pressure (measured in water column, or w.c. abbreviated). It is likely going to be in the ¼ to ½ pound of pressure that is being fed into the carburetor (equivalent to a range of 6in w.c to 12in w.c.) depending on if it is NG or LP, with NG being the lower pressure side. The size of the gas line in this case, black iron which leads me to believe it is NG, is based upon what ever pressure from the supplying the gas utility, be it the propane tank or the NG company. While the pressure from an LP tank coming directly out of the tank valve is over 100 lb of pressure, it would have a regulator right there at the tank dropping that down anywhere from a half pound of pressure up to 15 to 25 lb, again dependent on how long ago it was installed. If it's a natural gas utility and the setup has been around for 20 plus years, it is likely a ½lb to 1psi delivery pressure. Modern day generators for whole houses will usually burn somewhere around 250k up to 500k of BTUs per hour, dependent on the load.
5030
Epic Contributor
- Joined
- Feb 21, 2003
- Messages
- 26,997
- Location
- SE Michigan in the middle of nowhere
- Tractor
- Kubota M9000 HDCC3 M9000 HDC
My big standby is diesel so it ton't count but the smaller one is propane and I had my supplier plumb it very recently because of the cabinet refit. Yhe feed libe from the bottle is sioft copper with a regulator at the end of the copper feed line and out of the backside of the regulator and into the genny enclosure is black iron and it terminates in yet another redulator which came with the unit, inside the enclosure. Was that way when it was installed a long time ago and was plumber that way now. They know what they are doing, I haven't a clue.
