Electric valve MJC

manualflow-controlfor water

Overview
Available in DN20 to DN50, Tyco® Series MJC multiple jet controls are control valves with self-contained heat-actuating units. On actuation the MJC allows flow of extinguishing medium (typically water) to open spray devices such as nozzles or non-automatic (open) sprinklers. MJCs are used as auxiliary deluge valves to regulate water flow to defined zones within larger wet-pipe, dry-pipe or deluge systems. They may be fed from either wet-pipe or dry/deluge supply lines. System waterflow/alarm is provided by the main automatic control valve supplying the MJC line (for example alarm valves, dry pipe valves or deluge valves).

Product type
Auxiliary deluge valve

Summary table
System and Actuation Type: For use with deluge or preaction systems
Listings and Approvals: LPCB Approved
Sizes: DN20 to DN50

Features

• Fully automatic operation using proven frangible glass bulb as the heat detection/actuation element
• Allows defined areas of protection to provide full coverage of specific zones
• DN25, DN40 and DN50 offer optional thermoelectric actuation that can be combined with sensitive detection systems and/or manual electric actuation
• LPCB Approved
• Can be installed upright (bulb at top) for dry or deluge supplies, or pendent (bulb at bottom) for wet supplies
• DN25, DN40 and DN50 supplied with protective guard options
• Available in Europe only

Benefits

• Field-proven performance with extensive installed history
• Compatible with a broad portfolio of Tyco® fire protection solutions
• Backed by Johnson Controls product support and warranty

Technical Specification (table)
Listings and Approvals: LPCB Approved
Pressure Rating: 1.4 to 12.0 bar
Sizes: DN20 to DN50
System and Actuation Type: For use with deluge or preaction systems

Technical characteristics / specifications

• Model / Series: Series MJC (multiple jet controls)
• Application: Auxiliary deluge valve to control flow to nozzles or non-automatic (open) sprinklers within larger wet/dry/deluge systems
• Pipe sizes: DN20, DN25, DN40, DN50
• Pressure rating: 1.4 to 12.0 bar
• Listings/Approvals: LPCB Approved
• Actuation: Self-contained heat-actuating units using frangible glass bulb; DN25/DN40/DN50 optional thermoelectric and/or manual electric actuation
• Installation orientation: Upright (bulb at top) for dry/deluge supplies or pendent (bulb at bottom) for wet supplies
• Protective features: DN25/DN40/DN50 available with protective guard
• Geographic availability: Only available in Europe