Standard Single Cone Spray Valve:
Sterling’s standard single cone is recommended for normal operation. The Sterling Spray Valve is cast from noncorrosive type 316L stainless steel to ensure maximum life. This self-adjusting spray valve can handle flow up to twice its rated capacity, while maintaining spray pattern. Because the Sterling Spray Valve is hydraulically non-guided, solid particles and debris pass harmlessly through clogging or reducing performance. The thin film of feedwater sprayed into the steam atmosphere provides transfer and gas removal. The Sterling Spray Valve produces that thin cone of feedwater consistently over its operating range, resulting continuous deaerating performance.
Dual Cone Spray Valve:
Sterling’s patented (US Patent # 5,862,992) High Efficiency Dual Cone Spray Valve is utilized in difficult applications. Sterling’s Dual Cone Spray Valve adds a second, slightly smaller, cone of feedwater which produces a 71% increase in steam to water surface contact area within the deaerator’s spray zone. The Dual Cone Spray Valve is best suited for installation in existing deaerators to increase performance and reduce chemical costs. Upgrading is especially beneficial for underperforming deaerators. The Dual Cone Spray Valve is a direct replacement as well as most of our competitors’ spray valves, making it ideal for retrofit applications. Sterling also offers mounting adaptors for conversion from some competitors’ older designs to the Dual Cone’s bolting pattern.