The Stels Group of Companies specializes in engineering and packaged supply of ball valves. Our products are certified in accordance with TR CU. SPM ball valves developed under 3742-001-40886479-2015 specification have the following parameters: — nominal diameter DN8 to DN500, — nominal pressure from vacuum to 50 MPa, — service medium temperature from -268.9 °C to 650 °C, — pipeline connections: welded, flanged, threaded, wafer, — service medium: LNG, nitrogen, oxygen, helium, argon, methane, etc., — sealing type: soft, metal-to-metal.