9
To:
Subject:
API
Double Studded Adapter thickness (See Catalog)
Question:
Can you tell me if Double Studded Adapters
(DSA) are made to any API dimensional Specs? If so, can you tell me the
standard height (or thickness) of a 4-1/16" 5M X 2-9/16" 5M DSA?
Answer:
Although API SPEC 6A provides dimensions
for Loose and Integral
flanges, it leaves the thickness of adapter flanges up to the
manufacturer.
Most manufacturers make Double
Studded Adapters the same basic thickness as that required for a
flange of the largest nominal connection, with a raised portion about
1/4" high on the opposite side for the smaller studded connection;
unless tapped stud hole intersection,
and drilled hole depth, necessitate additional thickness to satisfy the
API design requirement for stud thread engagement. Different manufacturers use
different methods to satisfy this design requirement so minimum
thickness may differ between manufacturers. Thickness may also increase
above the design minimum to fill the user’s space requirements.
The size DSA you asked about, 4-1/16"
5M X 2-9/16" 5M might find application in a
Choke
Manifold. Its
thickness would have to meet that required minimum to satisfy design, plus
any measurement additional to that minimum needed to fill any space
necessary to complete any loop and allow flange faces to meet in parallel
contact.
WOODCO USA uses 3-1/2” as the minimum
thickness for a 4-1/16" 5M X 2-9/16"5M DSA. For the reason
mentioned above, DSA's may have
their thickness, above the minimum, specified by the buyer.
For more
information about DSA's and Spacer Flanges, Click Here.
To
view a catalog page on WOODCO USA Double Studded or Single Studded Adapters, Click Here.
