Calibration and Testing We have our own calibration and testing facility, based at our premises in Ahmadi to calibrate and test most of the linear measuring instruments and API thread gauges certified to NAMAS standards. We have purpose built hydrotest facilities for testing of all types of valves including Safety Relief Valve and other oilfield equipment up to a test pressure of 30,000psi. SOS ensures that Calibration of equipment is correct, constant and complies to ISO 9000 Quality Standards which increases customer confidence. Our experienced staff and proven Quality System ensure rapid turn around, accurate and repeatable results traceable to national or international standards. Pressure Relief Valve test bench. BOP pit. Facility for testing all types of valves including Gate Valve, Ball valve, Surface Safety Valves