The SAPORITI PV Series delivers exceptional accuracy and reliability in the machining of ball valves, especially where metal-to-metal sealing, hard coatings, severe service conditions, and zero-leakage performance are required.
Covering valve inner-diameters from ½” to 72”, these machines combine Italian craftsmanship with Weingärtner’s precision manufacturing standards. Their robust construction, linear roller guideways, and advanced CNC systems guarantee outstanding roundness, surface finish, and repeatability across all model sizes.
Each PV model features Siemens CNC control, Renishaw probing, and high-capacity coolant and filtration systems for stable production conditions.
Now produced in Austria under the SAPORITI brand, these machines integrate seamlessly into Weingärtner’s portfolio, extending our capability from complete machining solutions to precision finishing technology.
With the PV Series, Weingärtner now offers a complete solution chain, from rough machining and milling to final grinding and surface finishing of ball valves in all sizes. This addition completes our machine range in the energy sector, especially for the oil and gas industries. By combining SAPORITI’s decades of specialized expertise with Weingärtner’s precision engineering, we ensure unrivalled machining performance for the valve industry worldwide.
Compact Precision for Small and Medium-Sized Valves
The PV 250 Series delivers fast, stable, and highly accurate grinding for valve balls up to 350 mm OD. Its 60° inclined head ensure excellent visibility, while the heavy-duty frame and precision roller guideways provide exceptional rigidity and surface finish. Designed for both uncoated and coated materials such as stellite, carbide, or ceramics, it offers flexibility without sacrificing precision.
High-Performance Grinding for Medium Ball Valves
The PV 500 Series is built for grinding valve balls up to 595 mm OD. A 60° inclined head improves visibility and coolant flow, while stainless-steel enclosures provide full protection and long service life. Torque motors and water-cooled spindles ensure quiet, efficient, and reliable operation.
Versatility, also for Hard-Coated Valve Balls
The PV 750 Series covers valve balls from 8″ to 20″ (ID) and up to 750 mm OD. Designed for hard coatings such as stellite, ceramics, and nickel-boron alloys, it ensures perfect roundness and superior surface finish through rigid structure, high-precision linear axes, and generous coolant flow.
High-Capacity Grinding for Large Ball Valves
For valve balls up to 30″ and 1100 mm OD, the PV 1000 offers unmatched rigidity and machining stability. Its 30° inclined grinding head provides an optimal operator view and effective coolant evacuation, while water-cooled spindles and torque motors ensure smooth, precise grinding.
Heavy-Duty Precision for Extra-Large Valves
The PV 1600 handles ball valves from 16″ to 44″ (ID) and up to 1600 mm OD. Its extremely rigid 50 t frame and precision axes ensure consistent accuracy even on massive workpieces. Equipped with high-power motors and micro-controlled Y axis, it guarantees perfect alignment and finish under continuous operation.
Ultimate Precision for the Largest Valve Balls
The PV 2000 Series is engineered for grinding the world’s largest ball valves, up to 2500 mm in diameter. Its massive rigid structure, large roller-guides, and multi-axis control system deliver unmatched accuracy and repeatability for industrial applications in energy and petrochemicals.
