Mcdonnell & Miller Series 27-W Valve (M&M)

The McDonnell & Miller 27-W is used to monitor and control liquid levels in industrial boilers, tanks, and vessels. It activates alarms or pumps when water levels drop, preventing dry-fire damage. Common in steam boiler systems, HVAC, and process industries requiring reliable low-water cutoff or feedwater control.

The 27-W features a brass body with a Monel valve seat and EPDM disc. Maximum working pressure is 35 psi (2.5 kg/cm²), and maximum supply pressure is 100 psi (7 kg/cm²). It requires a minimum liquid level to operate. These specs make it suitable for moderate-pressure steam and hot water systems.

You can source the McDonnell & Miller 27-W through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on this liquid level control. We provide genuine McDonnell & Miller components for industrial applications.

Install the 27-W in a vertical position on the boiler or tank using the threaded connection. Ensure the minimum liquid level is maintained for proper operation. Follow McDonnell & Miller guidelines for wiring and piping. Always isolate the system and depressurize before installation to avoid damage or injury.