The McDonnell & Miller No. 27W Valve Mechanism is a float operated valve that automatically adds water or other liquids whenever necessary to maintain a prescribed level, its versatility and large feeding capacity fit it for a wide ranged of applications.  Its simplicity of design and quality of construction provides dependability.

The No. 27W Valve Mechanism can be used to add make-up water to condensate receiving tanks to maintain levels in distillation equipment, and for many other liquid level control jobs.  It can be flange-mounted directly in the side of a tank or receiver, to feed water through a separate feed line.  Mounted in this matter a small percentage of water will feed through the valve mechanism.  It can also be mounted inside, to spill water directly into the tank.

Features and Benefits

• For commercial and industrial liquid level open tank applications
• Materials of construction
  • Brass
  • Monel valve seat, EPDM disc
• Maximum pressure 35 psi (2.5 kg/cm2)
• Maximum supply pressure 100 psi (7 kg/cm2)
• Minimum liquid temperature 40°F (4.4°C)
• Maximum liquid temperature 212°F (100°C)