Needle & Regulator ValvesA valve is a device that regulates, directs or controls the flow of a fluid by opening, closing, or partially obstructing various passageways. Valves are technically valves fittings, but are usually discussed as a separate category. URG1 SeriesUltra High Purity Regulators Catalog 2D / 3D Spec. Pressure – Inlet: 600psig, 3,500 psig (41/241 bar) – Outlet: 0~30 psig, 0~60 psig, 0~150 psig, 0~250 psig Material: SS316L, SS316L VAR, HASTELLOY C-22 DCR, TBW Type 1/4″ Size BA, EP Grade Brief Description All Internal surfaces are finished with 10Ra or 5Ra to ensure minimal particle generation & moisture contribution. DK-Lok’s own electropolished. Entrapment metal to metal seal provide enhanced leak tight integrity Excellent stability of set pressure with accuracy, sensitivity. Hastelloy C-22 diaphragm material. PCTFE / PI seat material with remarkable chemical & thermal resistance.