Blow-out preventers, for oil or natural gas wells
Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves. > Safety or relief valves > Blow-out preventers, for oil or natural gas wells
Duty Rate (from China)
Products classified under Tariff item 8481.40.00.10
ASME Certified Pressure Relief Valve
An ASME-certified pressure relief valve designed to automatically vent excess pressure from boilers and pressure vessels, preventing catastrophic failures. Its spring-loaded mechanism ensures precise set-point operation, making it a quintessential safety valve under tariff item 8481.40.00.
8481.40.00Cryogenic Relief Valve for LNG Tanks
A cryogenic relief valve engineered for LNG storage tanks, releasing boil-off gas during overpressure events at extremely low temperatures. Its safety-relief function aligns directly with tariff item 8481.40.00, which covers valves designed to protect pressure vessels.
8481.40.00Flanged Relief Valve for Pipeline Stations
A flanged safety valve for natural gas compressor stations and pipeline pressure regulation points, built to ANSI B16.5 standards. Its role in preventing overpressure in pipeline systems qualifies it as a safety or relief valve under tariff item 8481.40.00.
8481.40.00Full Lift Safety Valve for Steam Boilers
A full-lift pop-type safety valve that provides maximum discharge area for rapid steam relief from industrial boilers. Its dedicated safety function for boiler shells and pressure piping places it squarely under tariff item 8481.40.00.
8481.40.00High-Pressure Safety Valve for Hydraulic Systems
A high-pressure safety valve designed to limit maximum pressure in hydraulic power units and cylinders, preventing system failures. Its safety relief function for hydraulic tanks and pipes aligns with tariff item 8481.40.00.
8481.40.00Pilot-Operated Pressure Relief Valve
A pilot-operated pressure relief valve that uses a pilot mechanism for accurate set-point operation in large pressure vessels and pipelines. Its high-capacity safety relief function for industrial gas systems qualifies it under tariff item 8481.40.00.
8481.40.00Spring-Loaded Safety Valve for Air Compressors
A spring-loaded safety valve for air compressors that pops open at a predetermined pressure to vent excess air from compressor tanks. Its dedicated safety relief function for over-pressurization protection places it under tariff item 8481.40.00.
8481.40.00Stainless Steel Safety Valve for Chemical Tanks
A corrosion-resistant stainless steel safety valve for hazardous chemical storage tanks, discharging vapors or liquids during overpressure events. Its safety relief function for chemical processing tanks and vessels aligns with tariff item 8481.40.00.
8481.40.00Thermal Relief Valve for Hot Water Heaters
A thermal relief valve that relieves pressure buildup from thermal expansion in hot water storage tanks, preventing tank rupture. Its safety relief function for water heating systems and pressure vessels qualifies it under tariff item 8481.40.00.
8481.40.00Vacuum Relief Valve for Fuel Storage Tanks
A vacuum relief valve that prevents tank collapse by admitting air during vacuum conditions in underground fuel storage tanks. Its safety relief function for petroleum storage vats aligns with tariff item 8481.40.00.