What is 3 way valve in chilled water system?
A 3-way valve, as the name implies, has three openings. When functioning as a two-inlet, single-outlet system, these valves can be used for mixing fluids. When working as a single-inlet, two-outlet system, they can be used as diverting chilled water valves, which divert part of the flow in another direction.
What is three-way valve in refrigeration?
The three-way valve’s lower outlet port closes (normal condenser port) and allows full refrigerant flow to the upper outlet port (heat reclaim port). If heat reclaim is used for heating the building’s supply air, the three-way valve will be controlled by the building’s HVAC controls.
How does a three-way temperature control valve work?
A 3-way control valve shuts off water flow in one pipe while opening water flow in another pipe. In a modulating or 3-point floating application the valve can also mix water from two different pipes into one pipe or divert water from one pipe into two different pipes.
What is 3 way valve used for?
3 Way Valve Operation These valves can be used to either divert the flow of fluids, or to mix fluids from two inlets delivered through to a single outlet. When used as mixing valves, fluids from inlet port A and B are mixed inside the valve body and subsequently transmitted out through port AB.
What is a 3 way mixing valve?
Three-way mixing valves are microprocessor-controlled valves designed to regulate supply-water temperatures to radiant heating systems by modulating the position of the valve. Configure mixed supply water temperature to reset (or vary) based on the outdoor temperature or control to a fixed, constant temperature.
What is 2 way valve and 3 way valve?
What is the difference between a 2 way and 3 way valve? A 2-way valve is any type of valve with two ports: an inlet and an outlet port. A 3-way valve has three ports within the valve body which are used as inlet, outlet, and exhaust.
How does a three-way control valve reduce the flow through the coil?
Three-way control valves may be diverting or mixing depending on how they are ported and controlled. The sketch below shows a three-way diverting valve system. As the temperature from the terminal unit or coil is satisfied, the flow rate is reduced in the coil and the flow is diverted to the bypass.
What is a 3-way solenoid valve?
A 3-way directional control solenoid valve has 3 pipe connections: the cavity port, the body orifice port and the stop port. It has 2 orifices: the body orifice and the stop orifice, one of which is always open. This allows for 2 paths of flow. Energizing the valve raises or lowers the plunger.