Manway / Nozzle fitments
Manway / Nozzle fitments
(OP)
Hello tank experts,
I have a product line of mixers that mounts to existing storage tank nozzles. We supply the adapter flange. The vast majority use API 650 Manways or Nozzles with flat faces. Now we are expanding to customers who request raised face versions of the same. It obviously helps if we can continue to use the flat face designs we have on the shelf where practical.
If a customer has a raised face flange on the tank, can we bolt a matching flange without a raised face?
Can the flat face gasket be used between two raised faces? Can a flat face gasket be used between one raised and one flat face?
If there is an industry standard that provides guidance on these questions, I would appreciate a pointer to it.
David
I have a product line of mixers that mounts to existing storage tank nozzles. We supply the adapter flange. The vast majority use API 650 Manways or Nozzles with flat faces. Now we are expanding to customers who request raised face versions of the same. It obviously helps if we can continue to use the flat face designs we have on the shelf where practical.
If a customer has a raised face flange on the tank, can we bolt a matching flange without a raised face?
Can the flat face gasket be used between two raised faces? Can a flat face gasket be used between one raised and one flat face?
If there is an industry standard that provides guidance on these questions, I would appreciate a pointer to it.
David





RE: Manway / Nozzle fitments
1) customer reluctance to accept FF in lieu of RF
2) overtorquing, thus bending the FF 'plate' flange while mating to the thick, forged RF ANSI/ASME flange.
If I liked the price difference you could give me, I would accept it. There are many, many folks that won't, due to "We've always done it the other way". Never underestimate the inertia of old, senior Field Engineers and Superintendants.
RE: Manway / Nozzle fitments
RE: Manway / Nozzle fitments