
Butterfly Seals
Butterfly seals can effectively block leakage paths in disk valves, shut-off valves, butterfly valves, and flap valves. They can potentially block three leakage paths – The flanges, sealing of pipes, and operating shafts.
| Materials |
NBR, EPDM, FKM, Silicone, HNBR, Neoprene – WRAS, DVGW, NSF, KTW materials available
|
| Size |
1/2 inch to 42 inches diameter
|
| Technical specifications |
Temperature : – 60 ° C / + 200 ° C (depending on material)
|
Our Expertise:
At Harkesh Rubber, we offer durable Butterfly seals with precise and calibrated torque-reducing geometries. This can enable the flap to close with a very low expenditure of force. To ensure excellent sealing, the seals also feature a high pressing action. We have extensive experience in manufacturing butterfly seals & can cater to demands of high volume.
Salient Features:
- Temperature Resistant (Up to 200 ° C)
- High flexibility
- Abrasion-resistant
- Precise dimension
Butterfly Seals
Rubber butterfly seals are essential components designed to prevent leakage in disk, shut-off, butterfly, and flap valves. These seals ensure reliable operation, maintaining tight shut-off while withstanding a wide range of temperatures and pressures. At Harkesh Rubber LLP, we manufacture high-quality butterfly seals using both injection and compression molding processes, tailored to meet your specific requirements.
High-Quality Butterfly Valve Seals
Our butterfly valve seals are engineered for precision, durability, and consistent performance. Whether it’s for industrial, water, or chemical applications, the seals are designed to fit various valve types and provide long-lasting reliability. We focus on dimensional accuracy and material performance to ensure leak-proof operation in every installation.
Materials and Temperature Resistance
We use high-performance elastomers suitable for a broad range of operating conditions. Depending on the material choice, our butterfly valve rubber seals can withstand temperatures from –60°C to +200°C. Each seal is produced with stringent quality controls to maintain tight tolerances and minimize flash, ensuring a clean, precise fit.
Salient Features
- Wide temperature range: -60°C to +200°C (depending on material)
- Manufactured using injection and compression molding processes
- REACH, ROHS, EN 549, and WRAS approved compounds
- Flash levels of less than 0.10 mm for precise finishing
FAQs
Butterfly seals are used in disk, shut-off, butterfly, and flap valves to prevent leakage and maintain tight valve operation.
Yes. We produce seals in custom sizes and materials based on specific valve requirements.
Depending on the material, seals can withstand –60°C to +200°C, and are suitable for various industrial applications.
All compounds are REACH, ROHS, EN 549, and WRAS approved, ensuring compliance and most importantly, safety.
They are commonly used in water treatment, chemical processing, industrial machinery, and fluid control systems.
Your Contact For

Technology – general sealing topics ,
Special Constructions
Jay Shah, Director, New Product Development & Marketing
contact@harkeshrubber.com
+91-22-40060400



