Pneumatic Actuator Valve Diaphragm
A reinforced rubber diaphragm for pneumatic control valves that flexes to position the valve plug under air pressure. Used in process industries for throttling flow in pipelines, classified as a part under HTS 8481.90.90.
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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 sold as universal industrial rubber diaphragms
Non-specific rubber articles for machinery classify under Chapter 40, not valve parts.
If hand-operated valve parts from specific base metals
Narrower subheadings apply if the diaphragm qualifies under hand valve components.
If integral to semiconductor gas control systems
Parts of semiconductor processing machines get special Chapter 84 classification.
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Import Tips & Compliance
• Include pressure/temperature ratings and compatibility specs to prove it's not general rubber sheeting
• Test for material durometer and reinforcement type; mismatches lead to Chapter 40 rubber goods classification
• Bundle with OEM part numbers from valve manufacturers like Fisher or Masoneilan for easier CBP review
Related Products under HTS 8481.90.90
Stainless Steel Ball Valve Replacement Seat
A precision-machined stainless steel seat designed specifically as a replaceable part for industrial ball valves used in piping systems. It ensures a tight seal between the ball and body under high pressure, classified under HTS 8481.90.90 as a part of valves for pipes and tanks, distinct from complete valves or assemblies.
Brass Gate Valve Stem
A threaded brass stem with handwheel attachment point for operating rising gate valves in water and gas pipelines. This part controls the gate disc movement to regulate flow, falling under HTS 8481.90.90 as a valve part for pipes, not a complete appliance.
Thermostatic Radiator Valve Head
Plastic and metal thermostatic sensor head that automatically adjusts flow in hydronic heating systems based on room temperature. Attaches to radiator valve bodies, classified under HTS 8481.90.90 as a part of thermostatically controlled valves.
Semiconductor Wafer Fab Check Valve Poppet
Ceramic poppet for high-purity check valves preventing backflow in gas lines of semiconductor wafer processing equipment. Precision-ground for ultra-clean environments, classified under general valve parts HTS 8481.90.90 unless proven as machinery-specific.
Industrial Butterfly Valve Disc
Stainless steel disc with shaft holes for quarter-turn butterfly valves used in HVAC and chemical processing pipelines. Provides flow control through rotation within the pipe body, under HTS 8481.90.90 as a valve part.
Pressure Reducing Valve Spring
High-tensile alloy steel compression spring that maintains set pressure in diaphragm-operated reducing valves for water systems. Calibrated for specific spring rates, classified as a valve part under HTS 8481.90.90.