What are the guidelines to have the right TYPE of check valve installed on a process stream?
Which one to be picked, and how those should be maintained?
The Right Check Valve
Re: The Right Check Valve
Choosing the right check valve requires balancing cracking pressure, closing speed, and pressure drop. While swing check valves are industry standards for high-flow liquid lines, specialized designs like dual-plate or axial-flow valves are preferred for preventing water hammer or handling gas streams.
Regular maintenance focuses on seat integrity and hinge pin wear to ensure reliable shut-off. This can be detailed by other contributors here.
Regular maintenance focuses on seat integrity and hinge pin wear to ensure reliable shut-off. This can be detailed by other contributors here.
Re: The Right Check Valve
See for most commonly considered check valves, I am listing here the best case use, their advantages, and disadvantages:
Hope this benefits.
Swing Check
Best use case: Low-velocity liquid lines
Adv: Full-port flow, low pressure drop
Dis-adv: Prone to "slamming" and water hammer; horizontal use preferred.
Dual-Plate (Wafer)
Best use case: Space-constrained systems
Adv: Lightweight, compact, fast-closing (non-slam).
Dis-adv: Higher pressure drop than swing valves.
Piston / Lift
Best use case: High-pressure gas or steam
Adv: Excellent sealing; handles high-pressure differentials.
Dis-adv: Small flow area; high pressure drop; vertical orientation limited.
Tilting Disc
Best use case: High-velocity flows
Adv: Fast closing prevents hammer; works well in turbulent flow.
Dis-adv: More complex design; higher cost.
Ball Check
Best use case: Viscous fluids or slurries
Adv: Self-cleaning; simple design.
Dis-adv: Not suitable for high-precision sealing; prone to wear.
Axial Flow (Nozzle)
Best use case: Critical pump/compressor discharge
Adv: Fastest closing; virtually eliminates water hammer.
Dis-adv: High initial cost; complex maintenance.
Hope this benefits.
Swing Check
Best use case: Low-velocity liquid lines
Adv: Full-port flow, low pressure drop
Dis-adv: Prone to "slamming" and water hammer; horizontal use preferred.
Dual-Plate (Wafer)
Best use case: Space-constrained systems
Adv: Lightweight, compact, fast-closing (non-slam).
Dis-adv: Higher pressure drop than swing valves.
Piston / Lift
Best use case: High-pressure gas or steam
Adv: Excellent sealing; handles high-pressure differentials.
Dis-adv: Small flow area; high pressure drop; vertical orientation limited.
Tilting Disc
Best use case: High-velocity flows
Adv: Fast closing prevents hammer; works well in turbulent flow.
Dis-adv: More complex design; higher cost.
Ball Check
Best use case: Viscous fluids or slurries
Adv: Self-cleaning; simple design.
Dis-adv: Not suitable for high-precision sealing; prone to wear.
Axial Flow (Nozzle)
Best use case: Critical pump/compressor discharge
Adv: Fastest closing; virtually eliminates water hammer.
Dis-adv: High initial cost; complex maintenance.
Re: The Right Check Valve
You mentioned that swing check valves are preferred in horizontal positions only.
Are they not installed at all in vertical runs?
Are they not installed at all in vertical runs?
tuan wrote: 08 Feb 2026, 15:19 See for most commonly considered check valves, I am listing here the best case use, their advantages, and disadvantages:
Hope this benefits.
Swing Check
Best use case: Low-velocity liquid lines
Adv: Full-port flow, low pressure drop
Dis-adv: Prone to "slamming" and water hammer; horizontal use preferred.
Dual-Plate (Wafer)
Best use case: Space-constrained systems
Adv: Lightweight, compact, fast-closing (non-slam).
Dis-adv: Higher pressure drop than swing valves.
Piston / Lift
Best use case: High-pressure gas or steam
Adv: Excellent sealing; handles high-pressure differentials.
Dis-adv: Small flow area; high pressure drop; vertical orientation limited.
Tilting Disc
Best use case: High-velocity flows
Adv: Fast closing prevents hammer; works well in turbulent flow.
Dis-adv: More complex design; higher cost.
Ball Check
Best use case: Viscous fluids or slurries
Adv: Self-cleaning; simple design.
Dis-adv: Not suitable for high-precision sealing; prone to wear.
Axial Flow (Nozzle)
Best use case: Critical pump/compressor discharge
Adv: Fastest closing; virtually eliminates water hammer.
Dis-adv: High initial cost; complex maintenance.
Re: The Right Check Valve
Is there any specific application where you are considering to install a specific type?
Just to support you if you provide more details.
Just to support you if you provide more details.
Re: The Right Check Valve
Yes, it is the gravity which plays against us while the swing check valve is in vertical position. Disc itself can have partial opening on top of gravity acting against.
Lift check valves are preferred if in any case a check valve is required to be installed on a vertical run. They do not depend on gravity.
In your plant site piping configuration, you might find many of those types.
There are cases where the flow is upward and manufacturer allows vertical installation, disc is also designed for that, and flow velocity is sufficient to fully open the disc.
However, in most of the specifications within petrochemicals, and oil & gas, you would find this mentioned that instll swing check valves in horizontal lines unless manufacturer permits otherwise.
Lift check valves are preferred if in any case a check valve is required to be installed on a vertical run. They do not depend on gravity.
In your plant site piping configuration, you might find many of those types.
There are cases where the flow is upward and manufacturer allows vertical installation, disc is also designed for that, and flow velocity is sufficient to fully open the disc.
However, in most of the specifications within petrochemicals, and oil & gas, you would find this mentioned that instll swing check valves in horizontal lines unless manufacturer permits otherwise.
ww2i wrote: 09 Feb 2026, 08:29 You mentioned that swing check valves are preferred in horizontal positions only.
Are they not installed at all in vertical runs?
Re: The Right Check Valve
Clear that is, thanks.