McDonnell Miller (173502) 157S Low Water Cut-Off & Pump Controller
McDonnell Miller (173502) 157S Low Water Cut-Off & Pump Controller
- SKU 173502
- in stock
Couldn't load pickup availability
Model number 157S is a combination float-operated low water cut-off and pump controller for steam boilers with an integral water column. The controller has 1/2" NPT tappings for gauge glass and tri-cocks. This control features an automatic reset with two 120 volt bi-metal snap switches. One switch is single pole, single throw for pump control. The other is single pole, double throw for low water cut-off and alarm actuation. Its maximum pressure is 150 psi and it has a tapped 1" FIP connection.
Part Number: 173502
Model: 157S
Overview
- 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
For commercial and industrial low or high pressure boiler applications and boilers of any steaming capacity.
Optional Features
- Manual reset
- 2 Single pole, single throw switches
- Float block
- BSPT threads
- Maximum pressure 150 psi (10.5 kg/cm2)
- Model 150S-MD Maximum differential operation – Prevents nuisance burner shutdowns in low pressure applications
Our shipping rates depend on delivery location as well as the size and weight of the item. Shipping will be calculated during the checkout process.
In you would like to return a product, you must first contact one of Customer Service Specialists for a Return Authorization. All return shipments must be prepaid by the customer. Made-to-order or custom products are non-returnable and non-refundable. Please note that there is a restocking fee for all returns.
