Pneumatic Backpressure Regulator
Automatically maintains upstream pneumatic pressure by throttling flow based on continuous sensing, stabilizing against load changes. Classified HTS 9032.81.00.80 as other pneumatic automatic instrument for pressure control in gas systems.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If simple mechanical backpressure valves
Non-automatic regulators without measurement feedback classify as valve parts in 8481.
If gas pressure metrological instruments
If designed for checking gas pressure rather than automatic control, goes to 9028.
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Import Tips & Compliance
• Prove setpoint stability with datasheets; non-stabilizing devices to 8481
• Corrosion resistance certs for chemical plant use; DOT markings if pressure vessels
Related Products under HTS 9032.81.00.80
Hydraulic Level Regulator for Fluid Tanks
This device automatically controls liquid levels in hydraulic tanks by measuring actual levels and adjusting inlet/outlet flows to stabilize at desired setpoints. It qualifies under HTS 9032.81.00.80 as other hydraulic automatic regulating apparatus for industrial fluid management. Excludes technical machine articles per chapter exclusions.
Hydraulic Sequence Valve Controller
Controls hydraulic circuit sequencing by automatically regulating valve timing based on pressure signals for multi-actuator systems. Under HTS 9032.81.00.80 for hydraulic automatic apparatus sequencing flow variables.
Pneumatic Cylinder Position Regulator
Automatically regulates pneumatic cylinder positions by controlling air supply based on linear feedback sensors. HTS 9032.81.00.80 for pneumatic position control apparatus maintaining setpoints.
Hydraulic Relief Valve Automatic Controller
Enhances relief valves with automatic setpoint adjustment based on system demand measurements. 9032.81.00.80 for hydraulic pressure relief regulation.
Pneumatic Differential Pressure Regulator
Maintains constant differential pressure across filters/orifices by automatic flow modulation. 9032.81.00.80 pneumatic application.
Hydraulic Accumulator Charging Regulator
Automatically controls charging rates to hydraulic accumulators based on bladder pressure feedback.