[Q&A] 2017.7.7
Thread Content
Can the outlet valve of a centrifugal pump be closed for an extended period of time while it is in operation? Answer: While a centrifugal pump is running, the outlet valve can be closed for a short time, but the duration of closure should not be too long. If it is closed for too long, the pressure of the liquid inside the pump increases, and the liquid will heat up, vaporize, and generate shock forces that can damage the impeller, the pump casing, or the shaft seal mechanism. http://down.hcbbs.cc/attachment/forum/201706/10/203353z7y06fdo70r6eod0.jpg Petrochemical Zone – New Ideas for Energy Saving: The “Creative Thinking” Campaign (Phase 2 is in full swing) http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1666758 (Source: Haichuan Chemical Industry Forum)
When a centrifugal pump is in operation, the outlet valve can be closed for a short period of time, but the closing time must not be too long. If it is closed for too long, the liquid inside the pump will experience an increase in pressure, as well as heating and vaporization; this can generate shock forces that may damage the impeller, the pump casing, or the shaft seal mechanism.
The outlet cannot be kept closed for an extended period; generally, it should not be closed for more than 3 minutes
No, when a centrifugal pump is in operation, the outlet valve can be closed for a short period of time, but the closing time must not be too long. If it is closed for too long, the liquid inside the pump will experience an increase in pressure, and it will also heat up and vaporize, generating shock forces that can damage the impeller, the pump casing, or the shaft seal mechanism.
When a centrifugal pump is in operation, the outlet valve can be closed for a short period of time, but the closing time must not be too long. If it is closed for too long, the liquid inside the pump will experience an increase in pressure, as well as heating and vaporization; this can generate shock forces that may damage the impeller, the pump casing, or the shaft seal mechanism.
When a centrifugal pump is in operation, the outlet valve can be closed for a short period of time, but the closing time must not be too long. If it is closed for too long, the liquid inside the pump will experience an increase in pressure, as well as heating and vaporization; this can generate shock forces that may damage the impeller, the pump casing, or the shaft seal mechanism.
When a centrifugal pump is in operation, the outlet valve can be closed for a short period of time, but the closing time must not be too long. If it is closed for too long, the liquid inside the pump will experience an increase in pressure, as well as heating and vaporization; this can generate shock forces that may damage the impeller, the pump casing, or the shaft seal mechanism.
If it is shut down for too long, the liquid inside the pump not only experiences increased pressure but also heats up and vaporizes, generating shock forces that can damage the impeller, the pump casing, or the shaft seal mechanism.