Pneumatic Back Pressure Regulator
> This pneumatic back pressure regulator maintains a constant upstream pressure by automatically throttling the flow based on real-time pressure measurements. It continuously senses the pressure and adjusts the valve opening to stabilize against load changes, making it an automatic regulating instrument. As a pneumatic device, it falls under tariff item 9032.81.00.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the regulator is a manually set valve without automatic adjustment
Manual valves are in heading 84.81.
If the regulator uses electrical sensing and control
Other automatic regulators are in 9032.89.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• > Distinguish this from a simple back pressure valve by documenting the automatic feedback mechanism
• Provide a datasheet showing the sensing element and control action
• If used in gas delivery, check for any additional regulatory requirements
Related Products under Tariff item 9032.81.00
Electro-Pneumatic Proportional Pressure Regulator
> This electro-pneumatic proportional pressure regulator converts an electrical control signal into a proportional pneumatic pressure output. It continuously measures the downstream pressure and adjusts the internal valve to maintain the desired setpoint, making it an automatic regulating instrument. Because its final control element operates pneumatically, it is classified as a pneumatic instrument under tariff item 9032.81.00.
Hydraulic Cylinder Position Regulator
> This hydraulic cylinder position regulator automatically maintains precise piston positions in industrial hydraulic cylinders by continuously sensing the position and adjusting the hydraulic flow to correct any deviation. It stabilizes the position against disturbances, making it an automatic regulating instrument. As a hydraulic device, it falls under tariff item 9032.81.00.
Hydraulic Flow Control Meter
> This hydraulic flow control meter automatically measures and regulates the flow rate of hydraulic fluid in industrial pipelines. It uses sensors to detect the actual flow and adjusts a valve to maintain the desired rate against variations, functioning as an automatic regulating instrument. Since it operates hydraulically, it is classified under tariff item 9032.81.00.
Hydraulic Fluid Velocity Regulator
> This hydraulic fluid velocity regulator automatically controls the velocity of hydraulic fluid in pipelines to maintain consistent process speeds. It uses flow sensors and actuators to continuously measure the velocity and adjust the flow, stabilizing against disturbances. As a hydraulic automatic regulating instrument, it falls under tariff item 9032.81.00.
Hydraulic Level Controller
> This hydraulic level controller automatically controls the level of hydraulic fluid in industrial reservoirs by using sensors to measure the actual level and adjusting the flow to maintain the desired setpoint. It continuously corrects deviations, making it an automatic regulating instrument. As a hydraulic device, it is classified under tariff item 9032.81.00.
Hydraulic Level Control Valve for Hydraulic Reservoirs
> This hydraulic level control valve automatically regulates the fluid level in hydraulic reservoirs by sensing the actual level and adjusting the flow of hydraulic fluid into or out of the reservoir. It continuously measures the level and corrects deviations from the setpoint, making it an automatic regulating instrument. Because it operates hydraulically, it is classified under tariff item 9032.81.00.