Our GG20 grey cast iron entrance flange is engineered for reliable inlet connection in fluid transfer, pump and valve system applications. Manufactured from high‑grade GG20 cast iron, this two‑lobe flange delivers excellent vibration damping, stable mechanical performance and long‑term service life under normal working conditions.
Precision‑machined central bore with H8 tolerance ensures accurate assembly and tight fitting with mating components. Two through mounting holes allow fast, convenient installation. Critical sealing surfaces are finely machined to Ra3.2 roughness to guarantee dependable sealing performance, avoiding medium leakage during operation.
The compact integrated casting structure optimizes overall weight while maintaining structural rigidity. Strict dimensional tolerance control keeps consistency batch‑to‑batch, suitable for mass‑assembly equipment projects.
Key Features
Material: GG20 grey cast iron, good shock‑absorbing property, anti‑deformation
High‑precision machined central bore for perfect fit with matching parts
Finished sealing faces (Ra3.2) for stable sealing effect
Dual through mounting holes for quick field installation
Stable casting quality, consistent dimension across batches
Compact structure, reasonable weight for equipment assembly
Application Scenarios
Perfect for pump inlet ports, pipeline connection, fluid equipment, industrial valve assemblies and other general industrial machinery connection scenarios.
