Where should the check valve be installed? Are you installing it correctly?

 

1. Install check valve first and then gate or butterfly valve

Advantages: It can protect the check valve, especially in parallel pumps. When one pump does not start and the other pump starts, the impact force is borne by the gate valve or butterfly valve.
Disadvantage: Who protects the gate or check valve? There has been a case where the valve plate of a butterfly valve was damaged.

2. Install gate valve or butterfly valve first and then check valve

Advantages: can protect butterfly valve or gate valve, the impact force is borne by check valve.
Disadvantage: Who protects the check valve? The check valve is opened and closed by the pressure difference. If the pressure of the main pipe is high, it will be closed, and the pump pressure will be high. If the flow used is unstable, the check valve will be opened and closed repeatedly. Affects the check valve life.
Selecting better quality check valves, butterfly valves, gate valves and other valves and their accessories can maximize the smooth operation of the project.The valve products of Bundor Valve have undergone layer-by-layer quality inspection from the blank to the factory. You can rest assured to choose!