Regulator valves, self-operating, for controlling variables such as temperature, pressure, flow and liquid level
Part of: 84818090 — Other
N352294 · 2025-08-25 — The tariff classification of valve assemblies from Mexico
Descriptive information was provided with your submission. The valve assemblies at issue are referred to as distributors with an eliminator expansion device (series RD3863). The eliminator expansion device is configured as a thermostatic expansion valve that is actuated by sensing the superheat in an evaporator’s outlet, or a piston valve that is actuated in response to a refrigerant’s drop in pressure. The distributors, which distribute refrigerant, consist of copper tubes joined to a brass hub or aluminum tubes joined to an aluminum hub. The primary function of the assembly is to regulate…
N270757 · 2015-12-17 — The tariff classification of a distributer and valve assembly from Mexico.
Descriptive literature and samples were included. The samples are being returned. You intend to import an assembly that consists of an aluminum distributor with aluminum feeder tubes and a brass and copper Thermostatic Expansion Valve (TXV), part numbers 119F7417 and 119F7289. The distributor with the feeder tubes is joined to the TXV by fastening a nut to the TXV and together, the assembly controls the distribution of refrigerant to the sections of the evaporator coil circuit. The distributer with the feeder tubes distributes the refrigerant to the individual sections of the evaporator coil…
N207555 · 2012-04-02 — The tariff classification of valves and valve parts of unspecified origin
Descriptive information was submitted. The articles in question are described as a bonnet assembly, a float chamber, a cover trap, and an in-line air separator. The in-line air separator is an appliance designed for use in hydronic heating/cooling systems to separate out free air within the system by decelerating fluid flow. The float chamber is a water cut-off valve for water and steam boilers. The cover trap is a steam trap assembly used with boilers to remove water/condensate from steam to improve the safety and efficiency of the boiler. The bonnet assembly is an integral part of a hand…
N180515 · 2011-09-13 — The tariff classification of thermostatic water supply valves from Germany
Descriptive literature was submitted. The articles in question are described as the Grotherm XL Exposed Central Thermostat (35 085 000) and Grotherm Thermostat Rough-In Valve (34 331 000) and are used to “measure” and control the temperature of the water entering indoor plumbing systems, in conformance with the user selected temperature. The Grotherm units are used in indoor plumbing, both for commercial and private use in homes, most often for prevention of scalding by limiting the upper temperature of the water passing through them. The Grotherm units have two inlets, one for a hot water…
N053018 · 2009-03-25 — The tariff classification of a solar pumping station from Italy
The article in question is described as a “Solar Pumping Station”, item number SPS-1. Based on the information you have made available, the solar pumping station is a unit that has a supply way and a return way and is used to control the temperature of fluid flow within a hydronic heating system. It is essentially a subassembly comprised of several valves, including a flow valve, a flow meter, temperature gauges and a pressure gauge. The unit is used conjunction with a circulating pump that will be assembled with the unit after importation. In your request you suggest that the valve assembly…
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