61685 | VS204 1/2" THERM AIR VENT | Spirax-Sarco Speed_3074RPM **3/4" 125# 7/64"Orf InvrtBckTrp** Armstrong

**3/4" 125# 7/64"Orf InvrtBckTrp** Armstrong International's 3/4" 125# 7/64"Orf InvrtBckTrp is a high-performing

- Durability: Constructed from high-grade materials

and advanced safety features

and durability in your industrial applications

This cover is easy to install and maintain

61685 | VS204 1/2" THERM AIR VENT | Spirax-Sarco Speed_3074RPM **3/4" 125# 7/64"Orf InvrtBckTrp** ArmstrongVS204 1 2" THERM AIR VENTThe VS204 1 2" Spirax Sarco thermostatic air vent is designed to remove air from steam systems. Air can cause a variety of problems in steam systems, including: Reduced heat transfer Increased corrosion Water hammer Noise The VS204 thermostatic air vent is a simple and effective way to remove air from steam systems. The vent is made of cast iron and has a stainless steel float. The float is connected to a valve that opens and