GEMÜ D457

The GEMÜ D457 manual plastic butterfly valve provides reliable flow isolation for corrosive liquid media applications. The GEMÜ D457 accommodates nominal sizes from DN 50 to DN 300, regulates operating pressures up to 10 bar, and withstands media temperatures ranging from 0°C to 90°C. Key Performance Capabilities: Chemical Degradation Resistance: The GEMÜ D457 uses a glass-fibre reinforced polypropylene (PP-GF) body combined with PVC-U, PVC-C, or PP-H disc options, preventing chemical corrosion to lower long term component replacement costs in aggressive fluid systems. Secure Manual Actuation: The GEMÜ D457 integrates a lockable manual hand lever with seven precise 15° adjustment steps, guaranteeing secure flow regulation to prevent accidental operation and eliminate unplanned process downtime. Environmental Resilience: The GEMÜ D457 features UV resistant construction, maintaining structural integrity for outdoor installations and preventing plastic embrittlement to ensure continuous flow control operation. Note: The maximum operational media temperature range depends strictly on the specific disc material selected for the GEMÜ D457 configuration.