R.R. Rubber Enterprise

Silicone Rubber Washer – 2 Inch | –40C to +200C
This 2 inch silicone rubber washer is designed to provide a reliable, long-lasting seal in applications requiring flexibility, temperature resistance, and durability. Made from high-quality silicone elastomer, it performs consistently across a wide temperature range from –40C to +200C, making it ideal for both cold and high-heat environments.
The washer offers excellent elasticity and compression recovery, ensuring a tight seal even under repeated use. Silicone’s natural resistance to moisture, UV, ozone, and aging makes this washer suitable for both indoor and outdoor applications.
Key Features
Material: Premium silicone rubber
Size: 2 inch
Operating Temperature: –40C to +200C
Excellent flexibility & resilience
High resistance to heat, cold, and weathering
Non-corrosive and non-toxic
Long service life with consistent sealing performance
Typical Applications
Plumbing and pipe connections
Food & beverage equipment
HVAC systems
Electrical enclosures
Automotive and industrial sealing
This silicone rubber washer delivers dependable performance where temperature extremes and sealing reliability are essential.

We are engaged in offering 24mm Ram Rubber Washer  to our clients. Our range of all products is widely appreciated by our clients.

Silicone Rubber Washer – 3/4 Inch, -40C to 200C
This silicone rubber washer is designed for superior sealing and cushioning in applications that demand excellent temperature resistance and long service life. With a 3/4 inch inner diameter, it provides a reliable seal while maintaining flexibility across extreme temperature ranges.
Manufactured from high-quality silicone rubber, this washer performs consistently from -40C to +200C, making it ideal for both high-heat and cold environments. Silicone’s natural resistance to aging, ozone, and weathering ensures dependable performance in indoor and outdoor applications.
Key Features:
Material: Silicone rubber
Size: 3/4 inch inner diameter
Temperature Range: -40C to +200C
Excellent flexibility across extreme temperatures
Resistant to weathering, ozone, and UV
Non-toxic and odorless (typical of silicone rubber)
Good sealing and vibration damping properties
Typical Applications:
HVAC and thermal systems
Food and beverage equipment
Electrical enclosures
Automotive and industrial machinery
High-temperature sealing applications
This silicone rubber washer provides reliable performance where standard rubber washers may fail, making it a durable and versatile sealing solution.

A **Nitrile Rubber Washer**, also commonly known as a **NBR Washer** or **Buna-N Washer**, is a flat, ring-shaped sealing component manufactured from **Nitrile Butadiene Rubber (NBR)**, a highly prevalent synthetic elastomer. It is primarily used to provide a static seal, absorb vibration, and distribute load, especially in applications involving petroleum-based fluids.

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###  Key Features and Function

The defining characteristic of an NBR Washer is its **excellent compatibility with oils and fuels**, which dictates its primary use cases:

* **Oil and Fuel Resistance:** NBR maintains its physical properties, such as resilience and volume, when exposed to **petroleum-based oils, gasoline, diesel, hydraulic fluids, and lubricants**. This is its chief advantage over elastomers like EPDM.
* **Sealing and Cushioning:** Like all flat washers, the NBR washer is compressed under a fastener (nut or bolt head) or between two mating surfaces. Its pliable nature allows it to fill minor surface irregularities, creating an effective **seal** against leakage and providing a cushion to **dampen vibration**.
* **Good Abrasion Resistance:** NBR possesses good physical strength and resistance to abrasion, contributing to its durability in dynamic or high-wear environments.
* **Moderate Temperature Range:** It provides reliable service generally between approximately **$-30^\circ \text{C}$ and $+100^\circ \text{C}$** ($-22^\circ \text{F}$ to $+212^\circ \text{F}$).

###  Limitations

While excellent with oils, NBR has specific environmental limitations:

* **Poor Weather Resistance:** It is susceptible to degradation from **Ozone, UV light, and weathering**. For outdoor or exterior applications, materials like EPDM or Silicone are typically preferred.
* **Chemical Incompatibility:** It is generally not compatible with certain aggressive chemicals, highly aromatic solvents, or brake fluids (non-petroleum based).

###  Common Applications

Nitrile Rubber Washers are indispensable in systems that handle hydrocarbons:

* **Automotive:** Used in fuel system gaskets, oil pan drains, and various engine component seals.
* **Hydraulics and Pneumatics:** Used as seals and spacers in valves, fittings, and pumps handling hydraulic oil.
* **Industrial Machinery:** Employed wherever fasteners are used in proximity to lubricating oils or cutting fluids.