Watson McDaniel’s AV2000 series of thermostatic air vents offers an optimized design, high durability, and efficient air removal for industrial steam systems, piping, and vessels.
Key features of the AV2000 thermostatic air vent series:
Simplified construction: The unit utilizes a welded stainless steel thermal element that automatically expands upon contact with hot steam and contracts in the presence of cool air to discharge the air.
Resilience against harsh pressures and media: An all-stainless steel body (ASTM A351-CF3) and internal components provide excellent corrosion resistance and the ability to withstand water hammer and overheating.
Integral strainer: The AV2000 features a built-in strainer to protect the valve from debris and contaminants that could foul the system.
Efficient, continuous air venting: The unit automatically purges cool air and non-condensable gases during startup or operation, then closes tightly upon contact with steam.
Long service life: Hardened stainless steel valve seats and caps ensure optimal wear resistance, while the self-aligning valve design guarantees a tight, secure seal.
Compact size and high operating pressure: The unit handles steam operating pressures up to 650 PSIG and temperatures up to 750°F within a compact footprint, supporting standard 1/2-inch and 3/4-inch threaded connections.
Type: AV2000
Stainless steel material
Pressure up to 650 PSI (48.5 bar)
NPT threaded connection
Size 1/2", 3/4"
Structure and dimensions:
| Size / connection NPT |
Code | Drain hole in |
PMO PSI |
Mass lbs |
| 1/2" | AV2001-12-N | 3/16" | 650 | 1.25 |
| 1/2" | AV2003-12-N | 5/16" | 650 | 1.25 |
| 3/4" | AV2001-13-N | 3/16" | 650 | 1.25 |
| 3/4" | AV2003-13-N | 5/16" | 650 | 1.25 |
Typical applications:
TL Plus Engineering specializes in providing comprehensive solutions for saturated steam systems, covering everything from heating system calculations and piping and valve selection—tailored to specific temperature and pressure control applications—to ensuring safe and efficient system operation. The company also develops solutions to calculate and minimize energy losses in saturated steam systems.
Application of the Watson McDaniel AV2000 Thermostatic Air Vent for Saturated Steam Systems.
TL Plus Engineering serves as the exclusive distributor and developer for Watson McDaniel’s US-manufactured valve product lines in the Vietnamese market.
