Tungsten Carbide Seals

Mechanical seals including tungsten carbide seals and silicon carbide seals are used increasingly on fluid pump to replace packed gland and lip seal. Pump with mechanical seals perform more efficiently and generally perform more reliably for extended periods of time.

Tungsten carbide seals with good wearable resistance, great anti-bend strength, high thermal conductivity, small co-efficient of expansion, they have a very wide range of applications. Tungsten carbide seals also have the highest co-efficient of heat shock among all the hard surface material.
 

 Tungsten carbide seals are extremely tough and stiff and have very good abrasion resistance. Tungsten carbide seals have versatile seal faces like Silicon Carbide. Tungsten carbide seals are very hard like silicon carbide seals; however they are very heavy to the touch, making them easy to distinguish from silicon carbide.

Tungsten carbide seals come in two primary types:
Cobalt bound (Ammonia applications should be avoided)
Nickel bound (May be used in Ammonia)
Typically 6% binder materials are used in mechanical seals, although a wide range is available. Nickel-bonded tungsten carbide seals are more prevalent in the wastewater pump market due to their improved corrosion resistance compared with cobalt bound materials

If you have any inquires concerning the tungsten carbide products, please do not hesitate to e-mail us by: sales@chinatungsten.com

Tungsten Carbide Seals

Tungsten Carbide Seals

Tungsten carbide is commonly used in mechanical seals, which is extremely tough and stiff and has very good abrasion resistance. Two common metal binders, cobalt and nickel, are used. Typically 6% binder materials are used in mechanical seals, although a wide range is available. Nickel-bonded tungsten carbides are more prevalent in the wastewater pump market due to their improved corrosion resistance compared with cobalt bound materials。
Seal face components made from solid silicon carbide are particularly well suited to abrasive and corrosive applications and can handle a wide range of temperature extremes. These components are excellent thermal conductors and can be specified where high strength and stiffness are required. Reaction bonded Silicone Carbide is also satisfactory for sealing faces, while it has excellent wear characteristics.