My reference to machining a raised face on a full face flange was correct. The problem was my memory dropped out because the machining was on the down stream flanges of spool pieces that bolt to a boss on the compressor housing. This boss is still a acting as a FF flange (900) with set-in studs. I called and checked this morning to find out the about the gaskets and flanges. All the flanges bolted to the compressor, with exception of two, are FF with most of the gaskets being a Grafoil gasket with a wire insert. The two remaining are RF and have a spacer at the bolt circle to limit travel. All of the downstream flanges have been changed to a RF.
Having eaten crow its time to try to help you resolve your problem. As mention above it can be done. I wouldn’t recommend this method though.. There are several companies that make gaskets that will seal and have means to prevent to much travel, similar to a spiral wound but not requiring the gasket seating stress required for the spiral wound gasket.
There are other methods that could be used but I can not mention them on an engineering forum.
Two companies that you might discuss your problem with are.
My reference to machining a raised face on a full face flange was correct. The problem was my memory dropped out because the machining was on the down stream flanges of spool pieces that bolt to a boss on the compressor housing. This boss is still a acting as a FF flange (900) with set-in studs. I called and checked this morning to find out the about the gaskets and flanges. All the flanges bolted to the compressor, with exception of two, are FF with most of the gaskets being a Grafoil gasket with a wire insert. The two remaining are RF and have a spacer at the bolt circle to limit travel. All of the downstream flanges have been changed to a RF.
Having eaten crow its time to try to help you resolve your problem. As mention above it can be done. I wouldn’t recommend this method though.. There are several companies that make gaskets that will seal and have means to prevent to much travel, similar to a spiral wound but not requiring the gasket seating stress required for the spiral wound gasket.
There are other methods that could be used but I can not mention them on an engineering forum.
Two companies that you might discuss your problem with are.
After you checkout their websites give them a call. I have used both with great success on very difficult sealing jobs. My reference to machining a raised face on a full face flange was correct. The problem was my memory dropped out because the machining was on the down stream flanges of spool pieces that bolt to a boss on the compressor housing. This boss is still a acting as a FF flange (900) with set-in studs. I called and checked this morning to find out the about the gaskets and flanges. All the flanges bolted to the compressor, with exception of two, are FF with most of the gaskets being a Grafoil gasket with a wire insert. The two remaining are RF with a spacer at the bolt circle to limit travel. All of the downstream flanges have been changed to a RF.
Having eaten crow its time to try to help you resolve your problem. As mention above it can be done, though I wouldn’t recommend this method though.. There are several companies that make gaskets that will seal and have means to prevent to much travel, similar to a spiral wound but not requiring the gasket seating stress required for the spiral wound gasket.
There are other methods that could be used but I can not mention them on an engineering forum.
Two companies that you might discuss your problem with are.
After you checkout their websites give them a call. I have used both with great success on very difficult sealing jobs.
, the compressor cylinders were either piped directly into, or had volume bottles bolted directly onto the cylinders, either way they're always installed with raised face flanges bolted against full faced cylinder flanges.
