Self-sealing washers and self-sealing lock washers are two kinds of sealing washers, as they’re commonly known. These sealing washers are used in combination with standard screws and bolts to seal out water, oil, dust, solvents and other materials or contaminants.
Panova’s one-piece molded self-sealing washers are designed with offset sealing elements that allow the seal to fit with standard, oversize and eccentric holes.
Our standard washers are made from stainless steel bonded with a sealing element that is made from either silicone or Buna-N rubber.
Custom Self-Sealing Washers
If our stainless steel self-sealing washers and their sealing materials do not meet your application’s needs, Panova’s engineering team will work with you to provide different materials and/or design a custom solution to meet your project’s specific requirements.
Self-Sealing Washer Features & Benefits
- Metal-to-metal contact provides torque control and a finished appearance.
- Sealing element is not exposed to external damage.
- Designed to work with vacuum and high-pressure liquids or gases.
- Seals liquids, gases, solids and dust in or out.
- Works with standard screws and bolts.
Self-Sealing Lock Washers
Another kind of sealing washer, Panova’s self-sealing lock washers are economical washers that are ingeniously designed to provide sealing and locking simultaneously.
Molded within each of our self-sealing lock washers is a high-quality lock washer with an internal tooth that is encapsulated in rubber. Internal tooth-lock washers have teeth located along the inside diameter to provide a good connection with fastener heads. This connection prevents fasteners from turning, slipping or loosening due to vibration or torque.
Our standard self-sealing lock washer material is carbon steel. The standard sealing materials used are silicone or Buna-N rubber.
Custom Self-Sealing Lock Washers
If our carbon steel self-sealing lock washers and their sealing materials do not meet your application’s needs, our engineering team will be pleased to work with you to provide different materials and/or design a custom solution to meet your project’s specific requirements. We can also manufacture these self-sealing lock washers in stainless steel and use different sealing materials.
Self-Sealing Lock Washer Features & Benefits
- Vibration resistant.
- Simultaneous sealing and locking.
- One-piece construction.
Sealing Washer Applications
Sealing washer applications include use for liquid protection and dust protection. Panova’s sealing washers superbly protect bolts, screws and other fasteners or threaded surfaces, particularly when used to prevent the ingress of water and other liquids.
Panova’s sealing washers are often used in water pipes and connections in producing a waterproof seal. Like vibration-damping washers, liquid-sealing washers are constructed from a soft material that is designed to press tightly and fully against the object’s surface.
Additional self-sealing washer applications include load distribution, screw/bolt spacing and vibration absorption. Panova’s sealing washers may be used for all these applications, but most customers turn to our sealing washers for their sealing-off function.
Sealing Washer Manufacturers
Panova is a sealing washer manufacturer, providing high-quality self-sealing washers and self-sealing lock washers along with other custom rubber and plastic molded products, including seal boots.
If you have any questions about our products or would like to request a quote, our friendly and helpful customer support team would be glad to assist you.