Air separatorfunction

Backflow Preventer Reduced Pressure Zone Assembly With Quarter-Turn Ball Valve, Series/Model: Series LF009-QT, Nominal Size: 1/2 IN, Connection Type: FNPT, Pressure Rating: 175 PSI, Temperature Rating: 33 - 180 DEG F, Cast Copper Silicon Alloy Body Material, Trim Material: Silicone Rubber Disc, Seat Material: Polymer Check/Stainless Steel Relief Valve, Industry Standards: UL Classified, CSA Certified, UPC Listed, USC, ASSE Number 1013, AWWA C511, CSA B64.4, IAPMO File Number 1563, 10 IN Width, 4-5/8 IN Height, Lead Free: Yes

The Sediment Removal Separator (SRS) is a centrifugal-type sediment removal. While the design is similar to the TAS Series Air Separator, the SRS also offers the advantage of solids removal.

Air separatorin HVAC

There are plenty of model options available at American Wheatley HVAC. If you are uncertain which of these models will work best for you or need more customization, please reach out to us. We are eager and ready to help you find the right solution for your needs!

While Dissolved Air Flotation (DAF) is necessary even in a ventilation system with manual vents, it is still very important to consider having an air separator because no hydronic system is airtight. Otherwise, the constant air/water mixture being pumped will dramatically decrease heat transfer efficiencies. A proper air separator also decreases oxygen exposure which is important because oxygen causes a large amount of corrosion that will contaminate the system.

Air separatorfor chilled water system

The tangential design allows for sediment removal through the vortex action, which forces suspended sediment to the outside of the vessel and into the bottom sump. You can then easily remove the sediment. The tangential action also creates a vortex that forces entrained air into the center and removes it through the top opening. It is then released into the atmosphere or sent to an expansion tank.

Having an air separator in your HVAC system greatly affects the system’s overall performance, especially in a chilled-water system. While air elimination is important in any ventilation setting, it is more important in the chilled-water system than in a hot-water system because the cold-water unit can hold more air inside the tank.

This lower velocity along with the change in direction allows air molecules to separate from water. Once the separation occurs, the air rises within the inline air separator. Then, it is discharged through the vent opening at the top of the vessel. This will go to either the atmosphere or an expansion tank.

Air separatorhow it works

The Tangential Air Separator design provides air-free fluid flow which protects against damage and system noise. This unit features grooved or flanged inlet and outlet connections. The tangential design results in a smaller unit. There are higher-working pressures available for this air separator.

Air separatorpiping diagram

Air separation is a common term when discussing HVAC equipment. There is a wide variety of Air Separators, and there are several uses depending on your needs.

Our In-line Air Separators series offers a lower-cost alternative for air separation in hydronic heating and cooling systems. The IAS/IASS series becomes a point of lower system velocity by changing the direction of flow through the device.

The Air Purger or Air Scoop operates on the premise that air rises in the piping and then into the unit. It is directed to the top opening and out of the system through an air vent or to an expansion tank. Since the proper operation of this type of air separator is also dependent on velocity, sizing this type of air separator is a function of proper flow rate. This type of air separation is best suited for residential and light commercial applications.

The High-Velocity and STAD Standard Velocity Coalescing Air & Dirt Separator is intended for use on commercial HVAC, institutional, and industrial applications to remove entrained air and particulate from system water. This is accomplished by the use of a High-Performance saddle ring coalescing assembly internal to the separator.

WATTS LF009-QT Lead Free Cast Copper Silicon Alloy Backflow Preventer Reduced Pressure Zone Assembly With Quarter-Turn Ball Valve, 1/2 IN, FNPT

Air separatorvalve

* Our American Wheatley HVAC Brand Air Separators are constructed and stamped according to ASME Section VIII Boiler and Pressure Vessel Code requirements and National Board registered.

This 1/2 IN lead-free reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering into the potable water supply due to back-siphonage and or backpressure in accordance with national plumbing codes and water authority requirements. Its compact modular design facilitates easy maintenance with a single access cover for in-line repairs. It is ideal for protection in continuous pressure piping applications and at cross-connections identified as health hazards and for contaminants at the service line entrance. This assembly consists of a lead-free bronze body, NPT end connections, quarter turn ball valve shut-offs with tee handles, top mounted test cocks, two in-line independent check valves, captured springs, and replaceable check seats with an internal relief valve for reduced space requirements.