Honeywell Maxon 1.25 Inch NPT 5000 Series Manual Safety Shut Off Valve

Maxon 125SMM11-AA11-BB*2A0, 1.25" NPT Manual Series 5000 Safety Shut Off Valve, NEMA 4 Enclosure and Cast Iron Body. All Maxon valves are designed to return to normal position instantly with any interruption in the electric power supplied through your safety circuit. Motorized automatic reset actuators are used where remote access or unmanned applications are needed. Manual reset actuators require operating personnel to be physically present to actuate the valve from its rest position.

Maxon switch assemblies provide positive valve position - open or closed. They also comply with “proof of closure” requirements and are easily integrated with an analog control system, Distributed Control System (DCS) or Programmable Logic Controllers (PLC). They are also IP 67 rated, sealed switches included for Non-incendive valves.

Maxon Normally-closed shut-off valves utilize power to open. Removal of electrical signal allows instantaneous release of the holding mechanism, allowing the powerful closing spring to close the valve in less than one second. Normally-open vent valves utilize power to close.

All Maxon valves are electrically actuated from a power source through the flame safeguard and/or safety control circuits. Standard valve assemblies include an internal holding solenoid on standard flow and CP body constructions, or a printed circuit board on high capacity valves. The solenoid (or printed circuit board) is energized whenever the valve is powered. The motor operator on automatic reset valves is powered only during the opening stroke for normally-closed valves, or the closing stroke for normally-open versions.

Maxon electro-mechanical valves are endurance tested far in excess of the most stringent requirements of the various approval agencies. They are designed for long life even if frequently cycled, and to be as maintenance-free and trouble-free as possible. A valve operational test should be performed on an annual basis.