Methodology

Each brass or wrought-iron valve undergoes full teardown: threads are inspected for micro-fractures, seats examined for uneven wear, and seats ground with diamond-impregnated lap compounds. This method allows us to identify subtle degradation invisible to casual inspection—crucial when reusing original hardware in landmark interiors where authenticity matters as much as function.

Cleaning involves ultrasonic baths for intricate parts, followed by controlled drying to prevent flash rusting. All components are tested on custom mock-ups before reinstallation. This preserves the integrity of delicate materials while ensuring leak-tight seals and precise flow regulation over decades—no temporary fixes or temporary reliability.

Re-assembly uses calibrated torque sequences and specific thread sealants appropriate to material pairs—e.g., non-hardening pastes for brass-on-brass joints. This systematic approach ensures consistent performance across thermal cycles and pressure fluctuations, preventing premature fatigue and extending service life without altering historic aesthetics.