Product search Brand Hale Hamilton (1) Product Category Actuators (32) Electric (17) Pneumatic (15) Filters (2) Regulators (9) Pressure (4) Spring (4) Skids & Packages (1) Charging (1) Valves (145) (-) Check (1) Control Valve (103) Desuperheater (16) Drain (1) Pump protection (4) Pump protection descaling (1) Regulator (1) Relief (1) Shut-off Valve (17) Stop Valve (1) Product Markets Defense (1) Industrial (1) (-) Industrial Gases (1) Oil & Gas (1) Product Type Search Search Hale Hamilton NRS1 & NRS2 - High-Pressure non-return valves