Ringo Válvulas NCBV non contact top entry ball valves series are designed and produced according to API 6D/ ISO 14313, API 6A, API 6DSS / ISO 14723, BS5351, ASME B16.34 and other international standards as well as customer specifications on request.
These valves are built of a single piece body with a bolted bonnet. This design is a robust construction that provides a good performance, smooth operation, minimum pressure loss, high Cv values and also allows bonnet disassembly on site to perform inspection, maintenance or repair without removing the valve body from the pipeline.
The Top-entry valve types have a major application when a frequent maintenance must be carried out and the valve cannot be easily removed from the pipe. In this valve series, all the internals can be easily dismounted by loosening the bonnet of the valve and removing the ball, the seat-holder and the shaft.
Valves can be supplied manual operated or with any kind of operator for ESDV, SDV, BDV, MOV, GOV or LBV functions (electric drive, pneumatic, hydraulic, electro hydraulic or pneumo-hydraulic actuator).