Double lower drilling, for fastening the valve, and centering, according to ISO 5211/DIN3337 standards.
• Lower female pinion key, according to ISO 5211/DIN 3337 standards, for assembly on valves with square key on line shaft.
• Drilling of the supplying connections according to NAMUR standards.
• Upper drilling for fastening the accessories, and upper pinion end according to NAMUR standards.
• Standard execution for temperatures from -20°C to +80°C. For high temperatures FKM seal up to +150°C. • External protection: resistance to corrosion of 500 hrs in salty fog according to ASTM B117-73. Optional Nickel-plated (chemical Nickel) or PTFE coated.
• Adhesive labels on which the progressive serial number is automatically punched.
• Running test and 100% seal test carried out with electronic equipment and certification of each individual product.
• ISO 5211, DIN 3337, ATEX - 2014/34/UE NAMUR VDI/VDE 3845.