JOHNSON CONTROLS P170AB-12C Single Pressure Control, Low Pressure, 1/4 Inch Male SAE, 12 To 80 Psi

Johnson Controls P170AB-12C pressure control protects against loss of excessive system pressure or refrigerant. It is suitable for low-pressure pump-down, cut-out & capacity controls on commercial refrigeration and air conditioning applications.

Working Mechanism:

• A pressure-sensitive bellows on the control unit links to a pressure connection on the managed equipment using a capillary tube or a hose installed in the field (excluding ammonia models).
• The bellows react to alterations in equipment pressure and trigger a snap-action electrical switch.

Frequently Asked Questions:

Q. How does flow control differ from pressure control?

A. Pressure regulators aim to uphold a consistent pressure, while flow control valves are designed to maintain a steady flow rate.

Q. How do I choose a pressure regulator?

A. When selecting a pressure regulator, always check for the operating pressure ranges at both the inlet and outlet, the necessary flow requirements and the nature of the fluid being regulated (gas, liquid, toxicity, flammability). Also, consider the anticipated temperature range for operation, the choice of materials for regulator components & seals and any limitations regarding size and weight.

Q. What is the differential pressure range of this low pressure control unit?

A. It has a differential pressure range of 5 to 35 PSI.