PVC Silent Check Valve
A PVC silent check valve minimizes water hammer with a spring-loaded disc for quiet, reliable backflow prevention in plumbing systems. It qualifies under HTS 8481.30.9000 for other nonreturn valves used in pipes and vats.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If wafer-style design
Compact wafer check valves may fall under specific wafer provisions in the tariff.
If predominantly plastic without metal internals
Pure plastic valves without significant metal parts are classified as plastic fittings in Chapter 39.
If safety or relief functionality
Valves designed primarily for safety/relief rather than check action go to 8481.40.
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Import Tips & Compliance
• Confirm NSF/ANSI 61 certification for potable water use; provide Schedule B codes accurately; test for chemical compatibility to prevent material degradation claims
Related Products under HTS 8481.30.90.00
Ball Check Valve for Air Compressors
Ball-style check valve using free-floating ball for backflow prevention in compressed air systems. HTS 8481.30.9000 covers such other check valves for tanks.
Inline Piston Check Valve
Inline piston check valve for hydraulic systems, with guided piston for precise sealing against back pressure. Under HTS 8481.30.9000 as other nonreturn valves.
Titanium Check Valve for Chemical Processing
Corrosion-resistant titanium check valve for aggressive chemical environments in processing plants, ensuring unidirectional flow. HTS 8481.30.9000 for other check valves in tanks/pipes.
Brass Swing Check Valve
A brass swing check valve prevents backflow in piping systems by using a hinged disc that swings open with forward flow and closes against reverse flow. It falls under HTS 8481.30.9000 as an 'other' check (nonreturn) valve not specified elsewhere in the subheading, designed for pipes, tanks, and boilers.
Stainless Steel Lift Check Valve
This stainless steel lift check valve uses a piston-like disc that lifts with forward flow and seats to block backflow, ideal for high-pressure applications. Classified under HTS 8481.30.9000 as an other check valve for pipes and tanks.
Bronze Flanged Check Valve
Bronze flanged check valve for corrosive environments, featuring bolted flanges for easy installation and a disc mechanism to prevent reverse flow. HTS 8481.30.9000 covers this as other check valves for boiler and tank applications.