DN50 Stainless Steel Hygienic SS316L Two-Pass Diaphragm Valve Pneumatic Valvula Neumatica De Diafragma De DOS Pasos SS316L. Hygienic Design: Specially designed for asepsis processes in pharmacy and food industries with no environmental contact. Multiple Connection Types: Supports Clamp, Weld, Male, and Flange connections for versatile installation. Dual Actuation Modes: Can be operated manually or via pneumatic actuation with solenoid valve control. Comprehensive Certifications: Meets 3A, BPE, DIN, ISO, IDF, and SMS standards with SGS and FDA compliance. Long Warranty Period: Provides a 3-year warranty for all stainless steel products excluding gaskets. Fast Delivery: Normal products delivered in 7-10 days; bulk orders in 15-25 days.