• One-piece body, centric disc
• Operating temperatures up to 620°C, depending on material selection
• Wafer type body for flanges according to DIN EN 1092-1 or ASME B16.5 / ASME B16.47
• Face-to-face length according to manufacturer’s standard
• Mounting flange for actuators according to DIN EN ISO 5211

Leakage approx. 1% of area equivalent

Leakage approx. 0,5% of area equivalent

Herberholz flap combination, consisting of two throttle valves, connected with a coupling linkage for forced control of the second flap.

HRD/S / HRA/S data sheet download