Bellows Type Stop Check Valve CB T3946-2002

CB T3946-2002 Marine Cast Steel Bellows Type Stop Check Valve – Hermetic Sealing Solution for Marine Applications

Product Overview
The CB T3946-2002 Marine Cast Steel Bellows Type Stop Check Valve is an advanced dual-function valve designed for critical marine applications in shipbuilding and vessel repair. Featuring a innovative bellows seal system with stainless steel construction, this valve combines stop and check functions in a single unit, preventing media leakage and ensuring zero emissions. Available in multiple pressure ratings (1.0 MPa, 1.6 MPa, 2.5 MPa) and sizes from DN15 to DN150, it offers reliable performance for steam, water, and oil systems in demanding marine environments.

Key Features & Benefits

✅ Bellows Seal Design – Hermetic sealing prevents stem leakage and ensures zero emissions
✅ Dual Function Operation – Combines stop valve and check valve functionalities
✅ Multiple Pressure Ratings – 1.0 MPa, 1.6 MPa, 2.5 MPa for versatile applications
✅ Stainless Steel Bellows & Stem – Superior corrosion resistance and durability
✅ Cast Steel Construction – Robust body for high-pressure marine service
✅ Custom Material Options – Special materials available upon request
✅ Marine Certification Ready – Compliant with CB T3946-2002 standard

Material Composition

Component	Standard Material	Properties
Body & Cover	Cast Steel	High strength and pressure resistance
Disc	High Quality Carbon Steel	Excellent mechanical strength and wear resistance
Bellows & Stem	Stainless Steel	Superior corrosion resistance and flexibility