LWCO, 150S-HD, Head Assembly for 150 series (Snap Switch)


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McDonnell & Miller model number 150S-HD is a head mechanism for model number 150S and 157S controls. Head mechanisms include everything except a float chamber. They allow for quick and easy replacement by removing the bolts on the float chamber and then removing and replacing the new unit, with no need to disrupt piping.

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SKU: CON-LWCO-173003 Category: Tag:
  • For commercial and industrial low or high pressure boiler applications
  • For boilers of any steaming capacity
  • Monel bellows provides corrosion resistance
  • Snap action switches for high temperature service
  • 1 Single pole, single throw switch for pump control
  • 1 Single pole, double throw switch for low water cut-off and alarm actuation
  • Optional features: Manual reset, 2 Single pole, single throw switches, 2 Single pole, double throw switches, Float block, BSPT threads
  • Maximum pressure 150 psi (10.5 kg/cm2)

Mcdonnell & Miller

Manufacturer ID





Replacement Part

Accessory For

150S Series

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