Brass Magnetic Locking Ball Valve

Ordinary brass ball-valve can be freely opened or closed by any common hand-tool. In public utilities, district-heating and metered water-supply pipelines, free manipulation may cause unauthorized operation, disordered system management and safety-related risks.

Magnetic-locking ball-valve integrates concealed multi-polarity magnetic lock mechanism. Valve can only be adjusted by matching dedicated magnetic-key; ordinary screwdrivers, pliers and other general-tools cannot unlock it, realizing anti-tamper management function.

Yuanlun brass magnetic locking ball-valve is safety-oriented anti-tamper shut-off component. Adopting hot-forged brass valve-body and concealed multi-polarity magnetic-lock mechanism. Valve can only be unlocked and manipulated by supporting dedicated magnetic-key; common hand-tools cannot trigger unlocking.

It is full-bore quarter-turn ball-valve. When unlocked by magnetic-key, it performs 90-degree open-close operation; handle parallel to pipeline = open status, perpendicular = closed status. Equipped with high-temperature-resistant PTFE sealing seats, pass 1.1×PN16 hydraulic sealing test pressure and 1.5×PN16 strength-test pressure. Thread connection complies with ISO 228 standard; flanged-connection variant is optional.

Important note: Installation shall be completed by qualified plumbing technicians. Magnetic-key shall be kept by system-management personnel, not delivered to ordinary end-users.

• Hot-Forged Brass Valve-Body

Hot-stamped forged brass main-body, high mechanical strength and corrosion-resistance, adapts long-term service in water, gas and heating circulating-medium environments. Partial variants support electroplated surface treatment; high-strength cast-iron ball-core is optional for selected models.

• Concealed Multi-Polarity Magnetic-Lock Anti-Tamper Design

Internal multi-polarity magnetic control assembly. Only matched dedicated magnetic-key can release locking-restraint. General hand-tools cannot unlock the valve, suitable for public-facility and metered-pipeline management scenarios.

• Full-Bore Quarter-Turn Operation

90-degree lever-handle open-close action, full-bore inner-passage brings near-zero flow-resistance, reduces medium sediment accumulation inside valve-cavity.

• High-Temperature-Resistant PTFE Seats

PTFE sealing-material realizes stable bubble-tight shut-off. Sealing-test pressure reaches 1.1 times nominal pressure; hydrostatic strength-test pressure reaches 1.5 times nominal pressure.

• Multiple Connection Options

ISO 228 standard threaded-connection as standard; flanged-connection is optional. Size-range DN15-DN50 (thread version), DN15-DN100 for flanged-variant.

Specifications

• Main Components & Function

• Operating Principle

1. Locked-status: Internal spring-loaded magnetic pins engage into stem positioning-groove. Without matching magnetic-key, stem cannot rotate; valve stays locked at open or closed position.
2. Unlocking process: Place proprietary magnetic-key on top-position of valve-bonnet. Magnetic-field repels internal magnetic pins, compresses spring and retracts pins, releasing stem-locking restraint.
3. Open-close operation: Under unlocked-state, rotate handle 90-degree to switch open / closed status. Handle parallel to pipe = open; handle perpendicular to pipe = closed.
4. Re-lock: Remove magnetic-key; spring pushes magnetic-pins back into positioning-groove. Valve automatically returns to anti-tamper locked-state.

Critical management reminder: Magnetic-keys shall be safely kept by pipeline-system administrator; do not hand over to ordinary end-users.

• District-Heating & Radiant Heating Systems

Use-case: Branch shut-off for metered residential district-heating projects. Project value: Prevent unauthorized end-user arbitrary manipulation of heating-loop; facilitate property-company / heating-operator system-management.

• Municipal & Building Tap-Water Supply Pipelines

Use-case: Branch isolation for metered water-supply public-utility projects. Project value: Realize anti-tamper shut-off management for each household branch-line.

• Gas Pipeline Public-Utility Projects

Use-case: Shut-off isolation for low-pressure non-corrosive gas branch-pipelines. Project value: Avoid unauthorized opening-closing of gas-valve, improve gas-supply safety-management level.

• Public Facilities & Communal Premises

Use-case: Schools, dormitories, apartment-complex communal pipeline-branch control. Project value: Centralized management by facility-administrator; prevent random valve-operation by occupants.

• Light-Industrial Non-Corrosive Fluid & Compressed-Air Circuits

Use-case: Anti-tamper isolation for factory auxiliary water / compressed-air branch-lines. Project value: Avoid on-site personnel mis-operation of important pipeline-shut-off points.

• Pre-Installation Check

1. Confirm valve nominal-pressure, temperature rating and connection-form (thread / flange) match project-condition.
2. Verify supporting dedicated magnetic-key is complete and functional before mounting.
3. Clean pipeline interior, remove welding-slag, sand and solid-particle debris.
4. Medium containing large hard particles may scratch PTFE seat and damage sealing-performance.

• Installation Steps

Thread-Type Version

1. Wind PTFE sealing-tape for 3-5 clockwise circles on male-thread port.
2. Screw valve onto pipeline; apply wrench torque on valve-body flats. Do NOT apply torque onto lock-bonnet or handle.
3. Guarantee enough surrounding clearance for 90-degree handle rotation travel.
4. Complete pipeline assembly, slowly pressurize system and inspect joint-leakage.

Flanged-Type Version

1. Align two-side flange pitch-circle accurately, place qualified flange-gasket.
2. Tighten flange-bolts cross-wise evenly to avoid valve-body distortion caused by uneven bolt-torque.
3. Reserve sufficient operating-space for magnetic-key placement and handle rotation.

• Important Installation Notes

1. Installation recommended for qualified plumbing technicians.
2. Magnetic-key must be stored by system-management-staff, not given to end-users.
3. Prohibit application for medium carrying large hard solid-particles, to prevent seat-scratch and sealing-failure.
4. After installation, test unlocking-locking function with dedicated magnetic-key before system formal commissioning.

Routine-Maintenance Suggestion

• Visual joint-leakage inspection: Quarterly
• Unlock-lock functional test using original magnetic-key: Annually
• Check magnetic-key magnetism performance: Annually
• Replace PTFE-seat and internal magnetic-lock spare-parts when malfunction occurs: As-required

Yuanlun brass magnetic-locking ball-valve adopts hot-forged brass body plus concealed multi-polarity magnetic anti-tamper lock-mechanism. PN16 pressure-rating, threaded DN15-DN50 (flanged-variant DN15-DN100 optional), PTFE high-temperature-resistant sealing seat. It needs proprietary magnetic-key for unlocking-operation, prevents unauthorized valve manipulation. Widely-applied for district-heating, municipal water-supply, gas-pipeline, public-facility and light-industrial non-corrosive-fluid pipeline-systems. Sample-order supported for pre-project-evaluation, 15-day standard lead-time for worldwide plumbing-HVAC distributors and engineering-contractors.

Zhejiang Yuanlun Valve Co., Ltd. was founded in 2006, formerly known as Yuhuan Guohong Valve Co., Ltd. It is located in Yuhuan, Zhejiang Province, known as the "Valve Capital of China". After nearly two decades of stable development, Yuanlun Valve is a professional manufacturer for HVAC valves integrating R&D, production and sales. Our product portfolio covers floor heating systems, air-conditioning systems, domestic water valves, including ball valves, thermostatic valves, manifolds, check valves, stop valves, filter valves, angle valves, pipe fittings, corrugated pipes and other series.