Valve Stem Seal

Valve stem seals are used in internal combustion engines to provide a seal between the valve stem and the valve guide. They are typically located at the top of the valve stem, where the valve stem passes through the cylinder head.
The primary function of valve stem seals is to control the lubrication of the valve stem and prevent the leakage of oil into the combustion chamber. They play a vital role in maintaining proper engine performance, reducing oil consumption, and preventing issues such as oil burning, excessive oil consumption, and fouled spark plugs. Materials such as rubber, silicone, or other elastomers that can withstand the high temperatures and pressures within the engine. They are designed to fit tightly around the valve stem and create a barrier that prevents oil from entering the combustion chamber while allowing a thin film of oil for lubrication.

MOQ:	100USD
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Product Description

Basic Info:

1.Raw-Material Brand:	DuPont (US) / Dow Corning (Germany) / Bayer (Germany) / 3M
2.Type:	According to Car Brand
3.Material Type:	NBR / FKM / Silicone
4.Size:	Standard size and Custom Size Accepted
5.Products Application	Metallurgical, chemical, engineering, construction, mining, petroleum machinery
6.Color:	Black, white, red, green, or any customize
7.Parameters:	Temperature from -60° C to +220° C in different material
8.Factory Certificate	IATF 16949:2016 and ISO9001, ISO14001 certificated
9.Product Certificate	KTW-W270/ Watermark/ LFGB / RoHs/REACH/FDA

Boman Valve Stem Seal Advantages:

1. Reduce Oil Consumption: By preventing oil from entering the combustion chamber, valve stem seals help to reduce oil consumption and prevent excessive oil burning.

2. Maintain Engine Performance: Properly functioning valve stem seals ensure that the engine operates at optimal efficiency by preventing oil-related issues, such as fouled spark plugs or incomplete combustion due to oil contamination.

3. Extend Spark Plug Life: Valve stem seals help to keep the spark plugs clean and free from oil deposits, which can lead to misfires and reduced spark plug lifespan.

4. Minimize Environmental Impact: Effective valve stem seals contribute to lower emissions by preventing oil from being burned in the combustion chamber, reducing the release of pollutants into the atmosphere.

Valve stem seals require periodic inspection and replacement if they become worn or damaged. Proper maintenance and replacement of valve stem seals are essential for ensuring the long-term performance and efficiency of internal combustion engines..

Product Parameters:

Valve Stem Seal

Valve Stem Seal Process Flow Chart:

steps	The process flow	Process flow name	Machinery and equipment/measuring equipment	features		Special features symbols	note
				product	product
1	□	Rubber material	visual	/	/	/
2	◇	IQC	Hardness tester	hardness	/	★
			Tensile machine	Tensile strength	/	/
			Tensile machine	elongation	/	/
			hydrometer	The proportion of	/	/
			Aging test chamber	The compression permanent deformation	/	/
3	□	Mixing	mixer	/	Material thicknessmm	/
4	◇	IQC	rheometer	TS2	/	/
				TS50	/	/
				TS90	/	/
			Hardness tester	hardness	/	★
5	□	Cutting edge /blanking	Cutting machine	/	Is long	/
					Material weight	/
6	□	moulding	300 t hot molding machine, automatic monitoring	/	The molding pressure (kgcm2)	★
				/	Molding time	★
				/	Mold temperature	★
			visual	appearance	/	/
			Hardness tester	hardness	/	★
			The projector/caliper	size	/	★
7	□	IPQC	visual	appearance	/	/
			Hardness tester	hardness	/	★
			The projector/caliper	size	/	★
8	□	deflashing	visual	appearance	/	/
			Automatic disassembly machine	/	speed	/
				/	time	/
9	□	QC	Scissors/knife	appearance	/	/

steps	The process flow	Process flow name	Machinery and equipment/measuring equipment	features		Special features symbols	note
				product	process
10	◇	FQC	visual	appearance	/	/
			Hardness tester	hardness	/	★
			The projector/caliper	size	/	★
11	□	cleaning	Plastic basket	/	/	/	Manual cleaning
				/	/	/
				/	/	/
12	□	Post curing	The oven	/	time	★
				/	The temperature	★
13	□	Packing	Electronic says	Single -	/	/
			Baling press	The number of	/	/
			The printer	The labe	/	/
			visual	The cartons	/	/
14	◇	OQC	visual	appearance	/	/
			Hardness tester	hardness	/	★
			The projector/caliper	size	/	★
			visual	check	/	/
			visual	weighing	/	/
15	□	Warehousing /delivery	transport cart	Delivery note	/	/
				Courier	/	/
				Put in storage	/	/
note	1．“◇”Said inspection、“□”Said processing、“↓”Said handling、“△”Said storage、“▲”Said reworking/repairing
	2．“★”Said product function and process of key special feature symbol；

Valve Stem Seal

Valve Stem Seal Applications:

Valve stem seals are primarily used in internal combustion engines, specifically in the cylinder heads, to provide a seal between the valve stem and the valve guide. These seals find application in various types of engines, including:

1. Automotive Engines Seal: Valve stem seals are widely used in automotive engines, including gasoline engines, diesel engines, and compressed natural gas (CNG) engines. They ensure proper sealing between the valve stem and the valve guide in both intake and exhaust valves.

2. Motorcycle Engines Seal: Valve stem seals are also employed in motorcycle engines, where they perform the same function of sealing the valve stems and preventing oil leakage into the combustion chamber.

3. Marine Engines Seal: Valve stem seals are utilized in marine engines that power boats and other watercraft. These engines, whether gasoline or diesel-powered, require effective valve stem seals to maintain proper lubrication and prevent oil leakage under marine operating conditions.

4. Small Engines Seal: Valve stem seals are found in small engines used in applications such as lawnmowers, generators, chainsaws, and other power equipment. They ensure proper valve stem lubrication and prevent oil from entering the combustion chamber.

5. Heavy-Duty and Industrial Engines Seal: Valve stem seals are used in heavy-duty and industrial engines, including those found in trucks, construction equipment, agricultural machinery, and power generation units. These engines operate under demanding conditions and require reliable valve stem sealing for optimal performance and durability.

6. Racing Engines: Valve stem seals play a crucial role in racing engines, where high-performance and precision are paramount. They help maintain proper lubrication and prevent oil consumption during high-speed operation.