Control valves in series for high pressure drop applications?

Asked by odadmin 7 years, 6 months ago | 1 Answers

Can I install two control valves in series for a high pressure drop applications?

1 Answer

odadmin 7 years, 6 months ago
Theoretically dropping high pressure across two valves is better than single valve. However, in practice, two valves will not usually control well together unless the process can operate with a very low proportional band with slow response time. A better alternative is to use a valve with internal multiple pressure drops. As an example, HUSH™ Trim manufacture such valves. This design reduces cavitation, excessive leakage, hazardous noise, vibration and mechanical failures.