SHUANGLIN VALVE | Magnetic Locking Ball Valve, DN15–DN50

A standard ball valve handle is convenient for the person who's supposed to operate it — and just as convenient for anyone else who isn't. On water meter connections, master shut-offs, and shared supply lines, that openness creates a real problem: unauthorized shut-off, tampering, or water theft. SHUANGLIN VALVE's magnetic locking ball valve removes the exposed handle entirely, replacing it with a sealed lock head that only opens with a matching magnetic key.

No Handle, No Keyway, No Easy Workaround

Instead of a lever handle that anyone can grab, the valve stem is capped by a chrome-plated lock housing with no external keyhole or handle to pry, cut, or force. Opening or closing the valve requires holding a specially matched magnetic key against the lock head — the magnets inside the key interact with magnets inside the lock to release an internal mechanism, allowing the stem to turn. Without that specific key, there's no conventional way to grip or manipulate the valve from outside, which is precisely what makes this design effective against casual tampering compared to a standard valve with a padlock added on afterward.

Purpose-Built for Metered and Shared Supply Points

SHUANGLIN VALVE manufactures this magnetic locking ball valve in solid brass across the DN15 to DN50 size range, with female threaded connections and a body marked with identifying numbers for record-keeping across multiple installations — useful for utilities or property managers tracking valves across many meter points. The internal ball and seat function exactly like a standard ball valve once unlocked, so flow control performance isn't compromised by the added security layer.

Where It's Used

• Water meter supply connections, preventing unauthorized reconnection after service disconnection

• Master shut-off points in multi-tenant residential buildings

• Shared or common-area water supply lines requiring restricted access

• Utility-side connections where tampering or unbilled water use is a concern

• Irrigation or agricultural supply points in unattended or remote locations

Ordering Information

• Payment: T/T (Bank Transfer)

• Stock Items: Ships within 7 days

• Custom Orders: 30 days production time

• Logistics: Sea or air freight, with customs clearance assistance

Warranty & Customization

SHUANGLIN VALVE backs every magnetic locking ball valve with a 1-year warranty against manufacturing defects, including free repair or replacement where applicable. OEM/ODM services are available for custom body markings, thread types, and private-label packaging on bulk orders, including matched key sets for multi-site installations.

Frequently Asked Questions

What happens if the magnetic key is lost? Because the lock relies on a specific magnetic key rather than a conventional keyway, losing the key means the valve can't be operated through normal means. We recommend keeping a spare key in a secure location, and can supply matched replacement keys on request for existing installations.

Can this valve be forced open without the key? The sealed lock head is specifically designed without an exposed keyway or handle to grip, making casual tampering significantly more difficult than with a standard valve secured by an external padlock. No lock design eliminates all risk from determined, tool-assisted tampering, but this design substantially raises the barrier.

Does the magnetic lock affect the valve's flow performance? No. Once unlocked, the internal ball and seat operate exactly as they would in a standard ball valve — the lock only controls access to the operating stem, not the flow path itself.

Can multiple valves be matched to the same key for a multi-site installation? Yes, SHUANGLIN VALVE can supply matched key sets so a single key operates multiple valves across a property or utility network. Contact us with your installation details for a tailored quotation.

Contact SHUANGLIN VALVE's sales team for a detailed quotation, technical drawings, or samples.