Attributes . Machined components are manufactured using solid bar stock. Stainless steel balls, retaining rings and springs maximize corrosion resistance and extend service life. Coupler has a large plated steel sleeve designed for easy gripping with gloves; Steel componentry is plated using ROHS Compliant Trivalent Chrome. EPDM steam-grade seals are standard. Stainless couplers have an O-Ring/PTFE Anti Extrusion ring sealing system. Valve seals are crimped in place to maintain integrity during excessive flow conditions. Special high-temp EPDM O-rings designed for steam service. . Names