Parallel slide valves
Parallel slide valves
(OP)
Can anyopne give me the advantages and disadvantages of parallel slide valves for use in HP and IP steam systems
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RE: Parallel slide valves
The two main advantages of parallel slide gate for steam service are:
1. A parallel slide gate valve is much less likely to get stuck in the closed position. This is because the gate is not torqued into the seats like a wedge gate. For steam generators that frequently start up and shutdown this is a major issue.
2. A parallel slide gate valve generally provides better shut off than a wedge gate.
The main disadvantage of the parallel slide gate valve is that it's more expensive than a wedge gate.
There may be a few other advantages and disavantages but I believe these are the main ones.
RE: Parallel slide valves