NBR Material Valve Stem Seal

Basic Info:

Boman NBR Material Valve Stem Seal Advantages:

1. Oil Resistance: NBR is highly resistant to oils, lubricants, and petroleum-based fluids commonly found in internal combustion engines. This makes it an ideal material for valve stem seals that need to effectively prevent oil leakage.

2. Sealing Performance: NBR valve stem seals provide excellent sealing performance between the valve stem and the valve guide. They help prevent oil from entering the combustion chamber while also keeping the valve guide lubricated.

3. Low Friction: NBR's inherent low coefficient of friction helps reduce friction between the valve stem and the seal, minimizing wear and ensuring smooth valve operation. This low friction is particularly important in high-revving engines.

4. Temperature Resistance: NBR has a good temperature resistance range, making it suitable for the operating conditions within an engine. It can withstand the temperature fluctuations that occur during engine startup, operation, and shutdown.

5. Cost-Effectiveness: NBR is a cost-effective material, which contributes to the affordability of valve stem seals made from this material. This is especially advantageous for mass-produced engines.

6. Compatibility with Engine Materials: NBR valve stem seals are compatible with various engine materials, including both ferrous and non-ferrous metals, which are commonly used in engine construction.

7. Ease of Installation: NBR valve stem seals are relatively easy to install, making them a practical choice during engine assembly or maintenance.

8. Wear Resistance: Resilience and durability make it resistant to wear and tear, ensuring a longer service life for valve stem seals.

9. Vibration Damping: Elastomeric properties help dampen vibrations and reduce noise generated by valve movement, contributing to smoother and quieter engine operation.

10. Chemical Resistance: NBR exhibits good resistance to various chemicals, making it suitable for use in engines where exposure to different fuel additives and engine fluids is common.

Product Parameters:

NBR Material 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；

NBR Material Valve Stem Seal Applications:

Automotive Engines:

Passenger Cars: NBR valve stem seals are widely used in passenger car engines to prevent oil consumption, maintain emission standards, and ensure smooth engine operation.

Commercial Vehicles: Commercial vehicles, such as trucks and buses, also utilize NBR valve stem seals to improve engine efficiency and reduce emissions.

Motorcycles:

NBR valve stem seals are employed in motorcycle engines to prevent oil from reaching the combustion chamber, ensuring optimal engine performance and minimizing exhaust emissions.

Power Generation:

NBR valve stem seals are used in generators, power plants, and backup power systems to maintain proper engine performance and prevent oil leakage.

Industrial Machinery:

NBR valve stem seals find applications in various industrial machinery, such as pumps, compressors, and industrial engines, to ensure efficient and reliable operation.

Marine Engines:

Marine engines, whether for recreational boats or larger vessels, use NBR valve stem seals to prevent oil contamination in the combustion process and maintain environmental regulations.

Construction Equipment:

Heavy machinery used in construction, mining, and other industries rely on NBR valve stem seals to keep engine performance consistent and prevent oil consumption.

Agricultural Equipment:

Tractors, combines, and other agricultural machinery utilize NBR valve stem seals to ensure proper engine operation and minimize the release of harmful emissions.

Power Sports Vehicles:

NBR valve stem seals are used in engines for ATVs, snowmobiles, jet skis, and other recreational vehicles to maintain efficient combustion and minimize oil consumption.

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