• Changing gasket 71 into PTFE it's not possible due to the fire safe certification, we can easily add a PTFE back up ring at the seat oring 62 maintaining graphite for gasket 71
• Drain with a ball valve ok, please give us detail about the orientation of this valve ( vertical , horizontal , ...... )
• More detail about the seat area....the details are already given....see the same detail already commeted about the gasket 71...
• We confirm injectors with internal check (it's a standard)
• BW end detail (in attachment your can find the DWG)
• Due to dimension constraints the seat injectors can be installed only where actually shown that is in the center of the valve body (valve is too small for installation on every seat)