Coliter ® Magnetic Lock Soft Seal Gate Valve – PN10/16, -10~80°C, Tool-Operated Secure Gate Valve for Water & Sewage Systems

CZ45X Magnetic Lock Soft Seal Gate Valve – Non-Rising Stem Gate Valve with Magnetic Self-Locking Mechanism for Tamper-Proof Control

The Coliter® CZ45X Magnetic Lock Soft Seal Gate Valve is an advanced security gate valve designed for water supply, sewage treatment, and municipal heating systems where unauthorized operation must be strictly prevented. It features a unique magnetic self-locking mechanism that automatically locks the valve at any position during rotation—open, closed, or partially open—and can only be unlocked and operated using a specialized magnetic tool, ensuring high-level tamper resistance without external locks or keys. The valve achieves bubble-tight shut-off through a resilient EPDM or NBR elastomer-coated wedge gate that compresses against a precision-machined ductile iron seat, overcoming common issues like leakage, rust, and poor sealing found in traditional gate valves. Its flat-bottom valve cavity matches the inner diameter of standard water pipes, preventing debris accumulation and ensuring smooth, low-resistance flow. Constructed from ductile iron (QT450) for the body, bonnet, disc, and stem nut—with a corrosion-resistant 2Cr13 stainless steel stem—the CZ45X offers exceptional durability. Both interior and exterior surfaces are coated with non-toxic epoxy resin, making it safe for potable water and resistant to corrosion in sewage environments. Rated for PN10/16 (1.0–1.6 MPa) and suitable for media temperatures from -10°C to 80°C, it complies with Chinese standards GB/T 12238, GB/T 12221, GB/T 13927, and GB/T 17241.6. Available in sizes from DN50 to DN400 with flanged ends, the CZ45X delivers zero leakage, long service life, and secure, maintenance-free operation in critical infrastructure applications.