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 Automotive Valves Industry
Automotive Valves Industry
The worldwide automotive valve manufacturing industry is a highly fragmented industry. Presently, there are approximately 1,365 automotive valve manufacturers and suppliers based in developed and developing nations. China is the leading manufacturing hub of automobile valves covering almost 81% of the global valves manufacturing market. Currently, the size of global automotive valves manufacturing industry is US $ 43 billion, which is forecasted to reach to US $ 53 billion by the end of 2010. US, Germany, Italy and Japan are the leading exporters of auto valves in the world.

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Automotive Components & Parts  »  Automotive Industry Directory  »  Automotive Valves

Automotive Valves
Automotive Valves Automotive Valves
Automotive Valves
Valves are the devices, which are used for regulating the flow of fluids or liquids. These are basically pipe fittings that have multiple applications. They are used in industrial, commercial, military, automobiles and residential establishments. Automotive valves can be found in bicycle tires, water pipes and engines. Auto valves of varied sizes and dimensions are used in almost all types of cars, trucks, aircraft, two wheelers and tractors. Worldwide automotive valves suppliers are offering a wide variety of auto valves in different materials. Auto valve used in automobiles can be made from a variety of raw materials like stainless steel, brass, copper, galvanized iron, carbon steel, caste steel, aluminum, and bronze.

A typical automotive valve size starts from fractions of an inch to 25 to 30 feet in diameter. It comprises of two valves namely intake and exhaust auto valves, which are used for letting air and fuel mixture in and out from the engine cylinder. Auto valve is a device used for controlling and regulating the flow of air/ fuel mixture. Basically, automotive valves are the pipe fittings used in various applications such as steam engines, diesel engines, petrol engines, heating or cooking appliances.

Types of Valves  

A/C Valves Brake Valve Carburetor Valve
Check Valve Expansion Valve Pressure Relief Valves
Thermostat Valves Magnetic Valve Fuel System Valve
Engine Valves Valve Parts  

A/C Valves are essential type of automotive valves whose main function is to sense, detect and regulate refrigerant flow to the evaporator. Air conditioning valves used in automobiles help in regulating the refrigerant flow to the evaporator. Also known as expansion valves, these devices are used for sensing the pressure at the suction of a/c compressor. These automotive valves make sure pressure remains balanced at the compressor suction. A/C valves are mostly placed at the firewall i.e. between the evaporator inlet and outlet tubes and the liquid and suction lines. The common types of A/C valves are expansion valve, TXV and 'H' block type valve.

A/C Valves
Brake Valve
Brake valves are considered to be the fundamental part of an automobile brake system and one of the most common automotive valves. These auto valves are devices through which driver of the vehicle controls and operates the brake. Brake valves are used for adjusting the pressure between the front and rear brakes. The automobile valves manufacturers use different types of materials for manufacturing brake valves. Stainless steel, carbon steel, iron, titanium, copper, brass, bronze, chromium vanadium etc are the materials used in the production of brake valves like hydraulic brake valve.

Carburetor valves commonly referred to as Carb are automotive valves used for mixing air and fuel for internal combustion engine of an automobile. It helps in controlling and monitoring the flow of air via carburetor throat. These automobile valves regulate engine power and speed by delivering equally the air/fuel mixture into the engine. Butterfly valve and choke are the two commonly used carburetor valves used in automobiles.

Carburetor Valves
Check Valve
Check valves are often called as self activating automotive valves. These devices are used for directing the mixture of gases and liquid to flow in only a single direction thereby preventing process flow from getting reversed. Acetal polymers, aluminum, brass, bronze, cast iron, chlorinated polyvinyl chloride, ductile iron, copper, polytetrafluoroethylen, polyvinyl chloride, polyvinylidene fluoride, polyethylene, polypropylene, rubber, steel, or stainless steel are used for making check valves used in almost all types of automobiles.

Amongst the different automotive valves, expansion valves are mechanical type. This type of mechanical valves are used for lowering the pressure of the refrigerant and then cool it when it goes into the evaporator coil in a heat pump. More precisely, this auto valve is the most important part of an automobile air conditioning system that regulates or monitors the rate at which refrigerant enters into an evaporator unit. The basic components of expansion valve are capillary tube, sensing bulb, spring, push pin, diaphragm, superheat adjustment spindle, orifice, and power head.

Expansion Valve
Pressure Relief Valves
Pressure relief valves are self operating devices or machines. These automotive valves are used for ensuring protection against over pressurization of steam, air, gas and liquid. The key function of pressure relief valve is to monitor the flow of fluid and ensure that the pressure does not exceed beyond its specified limit. This type of auto valve releases the steam, when safe pressure exceeds its defined limit and shuts down it when it drops to the preset level. A variety of pressure relief valves such as diaphragm valves, globe valves or swing valves are widely used in automobiles.

Thermostat valves are automobile valves that usually contains a needle valve, seat, metallic diaphragm, spring and adjusting screw. This auto valve is a temperature-regulating device used for monitoring and controlling the flow of coolant via radiator. Thermostat valves are usually located at the thermostat housing between the engine and at the end of upper radiator hose. These automotive valves allow the engine coolant to move easily within the cylinder block till the suitable temperature is attained. Thermostat valve is controlled by a piston or steel pin that can be accommodated into a small case, having copper impregnated wax pellet.

Thermostat Valves

Magnetic Valve
This type of automotive valves are modified as well as refined version of valves. These auto valves have replaced ball and butterfly valves. Magnetic valves have a switch that actuates when an electrical current is applied and then the plunger moves to the middle of cylinder. This plunger then opens up the passage for mixture of air and fuel to circulate to the other parts of an engine of the vehicle. Different types of production materials are used for manufacturing magnetic valve.

Fuel system valves form an essential part of any automotive engine. The function of a fuel system valve is to serve as an injector for different air-compressing and auto-ignition internal combustion engines. These auto valves comprise metal valve seat and a metal valve body. There is a chamber that contains material whose force counteracts the force on the valve body during rapid deceleration of the valve body. Automotive valve manufacturers produce these automotive valves according to the needs and demands of different automobile engine buyers. The different types of fuel system valves include:

Fuel System Valve

Engine Valves
The basic function of engine valves is to open or close intake and exhaust paths of an automobile engine. These auto parts are used to control the flow of fluids or gases within an engine. Abrasion, seizure and impact resistance are the essential qualities of a superior quality engine valve. Automotive valve manufacturers across the globe produce these auto valves in different materials. On the basis of their usage and functions, engine valves are classified as:

Valve parts are basically the subordinate or supplementary devices used along with the automobile valves. These automotive valves have different functions. Automotive valve manufacturers across the globe are using varied materials for the production of different valve parts. The various types of valve parts include valve covers that are those devices used for covering auto valves and keeping them immaculate and ready to use. These covers can have breather holes or knockouts and have an ability of preventing freeze-up at the time of winters. Valve lifters are the oil lubricated round shaped devices used for applying pressure against the lobe of camshaft resulting in upward and downward movement of the camshaft. These lifters are also called valve follower and roller lifters. Valve springs are the auto parts that are used for closing the automotive valves when rocker arms are not letting them open. Besides these, there are other accessories also used with automobile valves such as:

Valve Parts

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