How many standard test cocks are present in a typical double check valve assembly?

A typical double check valve assembly includes four standard test cocks. These test cocks are essential for conducting performance tests of the double check valves.

In a double check valve assembly, there are two main valve bodies, and each valve body is equipped with a test cock for testing the inlet side and the outlet side of each valve. Additionally, there is a test cock located between the two valves, which allows for testing of the shutoff features and ensuring the integrity of the assembly. The combination of these test cocks provides access points for backflow testing and maintenance, ensuring that the system is functioning properly and preventing any potential cross-connection contamination. Thus, the presence of four standard test cocks in a typical double check valve assembly is an established standard for maintaining the effectiveness of backflow prevention devices.