Check valves are generally installed in pipelines to prevent backflow. A check valve is basically a one-way valve, in which the flow can run freely one way, but if the flow turns, the valve will close to protect the piping, other valves or pumps. Check valves are useful in HVAC systems and water and wastewater applications. They are often placed on the outlet side of a pump to protect the pump from backflow.

How does aflow check valvework

Class II – Freeze retardant. Dekorra Enclosures Class II and II-V shall have a minimum thermal resistance value of eight. Dekorra Backflow enclosures have been designed and constructed to be installed in minimum external temperatures of 33.0°F.

Call DekoRRa Products for more information on installation or specific questions about your backflow configuration.

Boilerflow check valve

Class III – Non-freeze protection. Dekorra Enclosures Class III and III-V are designed and constructed to provide system security for components when freezing temperatures are not a consideration.

Our insulated and uninsulated enclosures are designed primarily for the backflow market and fits a variety of backflow assemblies and pressure vacuum breakers. Available in multiple configurations: Class I: Dekorra backflow box and base with insulation and self-regulating heat source. Class II: Dekorra backflow box and base with an insulated pouch providing R-13 insulation. Class III: Dekorra box and base only. Optional Cage View™ design allows for easy visual inspection and vandal protection. Choose from two natural tones—Green Turf or Brown Granite.

Class I – Freeze protection. Dekorra Enclosures Class I and I-V shall have a minimum thermal resistance value of eight and a positive means of heat. Dekorra Backflow enclosures have been designed and constructed to maintain a minimum internal temperature of 40.0°F.