For a DN20 pipe, what type of valve is suitable for regulating flow, one that offers high precision?
Thread Content
I took a look at the relevant posts and found that the minimum diameter of some valves is 25mm, so I’m a bit at a loss now.
This depends on the technical parameters and operating conditions; select the appropriate type of control valve. Regulators of the GLOBE/stop-valve type offer high precision; butterfly valves and V-ball valves are used for rough adjustment.
It depends on your budget; there are high-precision flow control valves available in sizes of 1, 2, 3, 4, 5, 6, 8, 10, 15, 20, and 32. DN20--------Continuous stroke adjustment. Pressure: 0-64 bar. Media: gaseous – liquid – highly viscous – highly polluted
For this diameter, a Globe control valve should definitely be chosen; the specific seat size will depend on the calculation results. If it’s very small, consider using a micro-flow control valve for diameter reduction; models from Fisher’s Baumann series are worth looking into.
If high precision is required, use a control valve; there’s no need to consider anything else