Fuel fittings

Hi all,not CC related however I’m hoping someone here may be able to point me in the right direction.

I have a diesel powered boat, the fuel supply lines have collapsed where they come through a bulkhead, restricting fuel flow.

I’m searching for 1/2’  90 degree full flow elbow connectors, at 1/2 inch ID I’m right on the minimum ID required for the fuel lines given the run length,other connections and filters. The engine’s fuel delivery and return specs have to be met or exceeded, they're isn't enough room to get larger fuel line or fittings in the space I’m working with.

I cant use multiple threaded fittings to make up the 90’ and can’t use a sharp 90’ as it will restrict flow,and wont reach through the bulkhead.

Pictured is what I need however this fitting reduces in size (ID) on the bend.

Thanks

Pete -thanks for the response.

I hear you,however when contacting various suppliers of the above fitting none can give me any tech info on it.

All they can say is its 1/2’ and made in China, I cant even get drawings for its physical size or info on what material its made from.

I’m concerned about the quality of the fitting, and failing like most Chinese junk .