Tungsten carbide valve seats and valve balls

Product Description

Tungsten Carbide Valve Balls and Seats are widely recognized as the gold standard for wear-resistant solutions in the industrial valve sector. Engineered to withstand the world’s most demanding environments, these components represent the pinnacle of material science in flow control.

Features of Tungsten Carbide Valve Seats And Valve Balls

1. Exceptional Hardness & Superior Wear Resistance
With a hardness second only to diamond, tungsten carbide provides an impenetrable defense against abrasive erosion. It is specifically engineered to withstand solid particulates such as formation sand and catalyst powders. In demanding environments like drilling mud, coal gasification, and multiphase flows, its service life significantly outperforms conventional metallic alloys.

2. Outstanding Corrosion Resistance
Our grades exhibit excellent resistance to a wide spectrum of corrosive media, including acids, alkalis, and salts. It is the ideal choice for the aggressive chemical environments found in petrochemical processing and marine engineering (highly resistant except for specific strong oxidizing acids like aqua regia).

3. High Compressive Strength & Structural Integrity
Designed to endure extreme seat loads and high pipeline pressures, tungsten carbide resists deformation and crushing. This ensures the structural integrity of the sealing surface under high-pressure conditions, maintaining long-term sealing reliability.

4. Thermal Stability at High Temperatures
Unlike standard steels, tungsten carbide retains its critical hardness and mechanical strength at elevated temperatures. This makes it perfectly suited for high-temperature steam, thermal oil, and hot gas applications where material softening must be avoided.

5. Precision Sealing & Zero Leakage
Leveraging a low friction coefficient and ultra-high hardness, our precision-lapped valve balls and seats achieve a superior Metal-to-Metal seal. They are capable of meeting Class VI (Zero Leakage) standards or higher, ensuring maximum safety and efficiency in flow control.

Specification of Tungsten Carbide Valve Seats And Valve Balls

Material	Tungsten carbide
Grade	YG6;YG8
WC%	94% ；92%
Co%	6% ；8%
Density （g/Cm3）	14.7-15.1；14.5-14.9
Bend Strength （N/mm2）	≥1600
Hardness HRA	≥90

Typical Applications

1.Upstream of oil and gas:

Wellhead equipment, throttle valves, mud pipelines, sand containing crude oil extraction.

2.Refining and Petrochemical:

Catalytic Cracking (FCC) units, hydroprocessing units, and harsh operating conditions containing catalyst particles.

3.Coal chemical industry:

Coal liquefaction and gasification processes, where the medium contains hard particles such as coal powder and ash residue.

4.Power industry:

Boiler feedwater, high-temperature and high-pressure steam systems.

5. Multiphase flow and slurry transportation:

Any fluid control application containing hard solid particles.

Why choose our Tungsten Carbide Valve Seats And Valve Balls?