Sanitary Threaded Check Valve
1. Basic Definition
A sanitary threaded check valve is designed for hygienic pipeline systems in food, pharmaceutical, and other clean industries. It automatically opens/closes via fluid pressure to prevent backflow. Typically made of 304/316L stainless steel, it complies with ISO, DIN, 3A, and other sanitary standards.
2. Core Structure
Connection Type: Internal thread (female thread) or external thread (male thread), with some models supporting clamp or welded hybrid connections.
Valve Design: Swing type or spring-assisted lift type, sealed with O-rings or metal seats.
Size Range: DN15-DN100 (½"–4"), pressure rating 150CWP–750CWP.
3. Technical Features
Material: 304L/316L stainless steel (DIN 1.4307/1.4404), forged construction.
Compatible Media: Water, oil, gas, and high-purity fluids (e.g., dairy, pharmaceutical liquids).
Cleanability: Supports CIP (Clean-in-Place) and SIP (Sterilize-in-Place) processes.
4. Certifications & Standards
Industry Approvals: 3A (food-grade), DIN 11851 (threaded connections), SMS (Swedish Hygienic Standard).
Performance: Operating temperature -20°C to 150°C, dynamic pressure drop based on flow rate.
5. Typical Applications
Biopharmaceutical sterile pipelines
Dairy processing equipment
High-purity chemical fluid transfer
