The 3-way stainless steel sanitary ball valve is available in sizes 1/2″ – 4″ with a balanced 4-seat or 5-seat construction. Temperate range between -20F ~ 400F and working pressure up to 1000PSI (1/2″ – 1″). Full port and blow-out proof design.


Series 520-SN (3-Way – Optional 4/5 Way Sanitary Valve)

Unlike two-seated diverter valves and other multi-port valves on the market, the 520-SN series has four seats (five seats in bottom entry valves) for positive shut-off in the closed position.  High-Cycle, Live-Loaded Stem Packing Dynamic loading on stem packing ensures a tight seal through varying pressure and temperature conditions, extending service life and reducing maintenance costs.


The 520-SN is a true multi-way sanitary style ball valve with balanced seat construction. Porting and shut-off capabilities can reduce the number of process valves required in a piping system. This full port valve is available in a number of flow configurations with both clamp and tube butt weld end connections.  Lateral forces in a 3-way valve can cause unwanted seat distortion. tem/ball isolation prevents side loading and wear of downstream seats improving performance and service life.  The series 520-SN valve offers the following add-on options: 4 or 5 way construction withmultiple flow patterns, clamp, tube butt weld, extended tube butt weld or compression end connections and finer internal surfaces are available upon request.


The series 520-SN is an ideal choice valve for the pharam, food/drinking water/beverage and medical industries.  With optional cavity filler, the 520-SN would be perfect for handling food, drinking water and medical chemicals/waste.  The cavity filler will enable and ensure the reduction of contamination and particles embedding in areas of the valve and ball.

  • Available in sizes 1/2″ – 4″
  • Up to 1000PSI
  • Temperature range between -20F – 400F
  • Balanced 4-Seat or 5-Seat construction
  • Trunnion mounting ball (1 1/2″ – 4″)
  • Provides engineers greater design flexibility
  • ISO 5211 mounting pad for valve automation
  • All valves tested to ANSI/ASME B16.34 and API598
  • All material comply with applicable ASTM material specifications; all soft wetted parts comply with FDA CFR Title 21; Part 177.
  • Optional connecting ends include:  tri-clamp, tube butt weld, extended butt weld or compression end connections
  • Blow-out-proof stem – stem is bottom loaded to prevent removal when valve is in service
  • Full port design – full port construction improves flow characteristics for greater process efficiencies