UL 567:2021 free download

UL 567:2021 free download Emergency Breakaway Fittings, Swivel Connectors and Pipe-Connection Fittings for Petroleum Products and LP- Gas
c) Other device that is equivalent to the devices in (a) or (b).
5.11 SWIVEL CONNECTOR-Atype of swivel categorized as either a hose swivel or swivel joint.
a) HOSE SWIVEL – A swivel connector with one end attached to a hose and the other end to anappurtenance.The hose swivel will allow radial movement of the hose and/or appurtenance toprevent the hose from twisting or having torsional stress.
b)SWIVEL JOINT- A swivel connector installed in a piping system with at least one end attachedto a rigid pipe or other appurtenance that is firmly affixed. The swivel joint will allow radialmovement of the pipe or other appurtenance attached to the swivel to prevent torsional stress.
cONSTRUGTION
6 General
6.1 A connector or fitting for use with petroleum products shall be constructed for an operating pressureof not less than 50 psig (340 kPa) for the fluid confining portion of the device and 0.5 psig (3.45 kPa) forthe vapor confining portion of the device,when provided, and an ultimate rupture pressure of not less thanfive times the design pressure.
6.2 A swivel connector or emergency breakaway fitting for use with anhydrous ammonia or LP-Gas shallbe designed for an operating pressure of not less than 350 psig (2413 kPa) and an ultimate rupturepressure of not less than five times the design pressure.
6.3 An emergency breakaway fitting shall be constructed to separate in the event that the coupling issubjected to a pull force not less than 100 lbf (445 N), and not to exceed 350 lbf (1557 N) for petroleumproduct service and 400 lbf (1779 N) for anhydrous ammonia or LP-Gas Service.
6.4A hose assembly provided with an integral swivel connector for petroleum product service shallcomply with the applicable requirements in the Standard for Hose and Hose Assemblies for DispensingFlammable and Combustible Liquids,UL330.
7Materials
7.1Materials in contact with the fluid to be handled shall be inherently resistant to being adverselyaffected by such fluid.
7.2A synthetic rubber part shall not show any signs of cracking or other damage following exposure to -40°F(-40°c).See the Low Temperature Test,Section 22.
7.3 A part made of drawn-brass or machined from bass rod in which the zinc content exceeds 15 % shallbe capable of withstanding, without cracking, the Moist Ammonia-Air Stress Cracking Test, Section 24, forcopper and copper alloys.
7.4 A copper or a copper-alloy part shall not be used where it is in contact with dissimilar metals such asaluminum, unless one of the parts is coated with chromium or other equivalent metallic coating to precludeelectrolytic action. A coating shall have a thickness of not less than 0.0002 in (0.005 mm).
7.5lf atmospheric corrosion of a ferrous material part will interfere with the proper function of a connectoror a fitting, the part shall be provided with a corrosion-resistant protective coating.