Product search Brand Hale Hamilton (1) Product Category Filters (2) Regulators (9) Pressure (4) Spring (4) Skids & Packages (1) Charging (1) Valves (16) (-) Check (1) Drain (1) Relief (1) Shut-off Valve (13) Stop Valve (1) Product Markets Commercial Marine (33) Defense (34) Industrial (25) Building & Construction (2) Chemical (22) (-) Industrial Gases (1) Oil & Gas (9) Power Generation (20) Product Type Search Search Hale Hamilton NRS1 & NRS2 - High-Pressure non-return valves