thermal expansion, to api 520 certified to asme viii for air and steam gas, steam and liquid service integral nozzle - minimum number of components - flanges to any standard - rugged construction. test gag supplied as standard
scope
the type 5700 is a spring loaded, fixed blowdown, integral nozzle safety relief valve designed to complement the 8100 range in the field of limited capacities, thermal expansion or where threaded connections are a requirement. 5700 series are available with threaded inlet, and outlet or with flanges. both connecting threads and flanges can be machined to any standard. npt and asme‑ansi are standard versions.
performance
the performance of the type 5700 is certified by independent organizations : • “uv” stamp (national board certification according to the rules of the asme code, section viii), with capacities certified on air and steam. • other approvals (ask the factory for details).