Butterfly Valve Seat
A Butterfly Valve Seat is a critical sealing component designed to prevent fluid leakage in butterfly valves, which regulate flow in industrial piping systems. These gaskets provide leak-proof performance, ensuring the integrity of the valve by sealing between the valve body and pipeline connections.
At Rahavard Saei, we specialize in the design and manufacturing of high-quality butterfly valve seats, offering precision engineering, durability, and chemical resistance to meet the rigorous demands of industries such as oil & gas, chemical processing, and food & beverage.

Key Features & Benefits
- Superior Sealing Performance – Ensures a leak-proof connection between valve components.
- Custom Material Formulations – Available in NBR, EPDM, HNBR, Viton, and Silicone for optimal chemical and temperature resistance.
- Wide Compatibility – Designed to fit standard industrial butterfly valves from DN 32 to DN 1000.
- Resistant to Extreme Conditions – Engineered to withstand high pressure, aggressive fluids, and thermal variations.
- Quick & Secure Installation – Facilitates easy assembly and long-term reliability in industrial applications.
Mechanisms and Diverse Applications
Industries
Oil & Gas Pipelines
Secure sealing in petrochemical and refinery applications
Chemical Processing
Chemical-resistant gaskets for corrosive and hazardous environments
Food & Beverage
FDA-approved materials for hygienic fluid control
Power Generation
Ideal for steam and cooling circuits in power plants.
Pharmaceutical & Medical
Ensuring sterile and contamination-free sealing in pharmaceutical and biotech industries
How It Works
A Butterfly Valve Seat is installed within the butterfly valve body, providing a tight seal between the valve components and preventing fluid leakage. When the valve is in the closed position, the gasket ensures that no fluid passes through, while in the open position, it allows unrestricted flow through the pipeline.
The gasket plays a critical role in sealing three main areas:
- Between the valve body and pipeline flanges – Prevents external leakage.
- Between the valve disc and gasket surface – Ensures a secure internal seal when the valve is closed.
- Around the valve shaft – Prevents leakage through the valve’s actuator system.
These gaskets are designed to withstand extreme pressures, temperature variations, and exposure to aggressive fluids, making them essential for industrial piping systems.
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