NOTICE TO REFILLERS AND REFURBISHERS
We manufacture our OPD valves according to industry standards,including CGA S-1.1 which requires replacement or requalificationof the pressure relief device (PRD) within 10 years after the dateof manufacture.
SERVICE
- Grand Hall is a total solution provider and supports consulting, designing, manufacturing, and delivering high-quality products to our customers. Our expertise in valve products can help you create, design, and deliver valves that meet business needs, drive loyalty, and create remarkable brand value.
PRODUCTIVITY
- 10 million valves/year
- 1. Italian-made three-directional forging machine
- 2. 200-450 tons forging equipment.
- 3. Italy & Taiwan - Special automatic machining machines
- 4. Switzerland - Parts processing machines
QUALITY INSPECTION
- Burst Disc Pressure Testing
- Leakage Testing
- Linearity Testing
- Roughness Testing
- Overhead Projector Coordinate Machine
