SlavaU336
Chemical
- Aug 9, 2014
- 8
Hi Everyone,
Question: How come for a 627 regulator for example, if we reach the maximum inlet pressure than the trim size can handle,
how come the flow capacity at the max inlet pressure is way less than the flow capacity with an inlet pressure that's half the max inlet pressure?
Example: Table 9 - Type 627 Capacities for NPS 2 body size and orifice size = 1/2 in - Outlet Press = 60 PSIG; Inlet pressure: 300 PSIG => Capacity = 79,000 SCFH. For the same regulator, same outlet pressure, if inlet pressure = 750 PSIG => Capacity = 32,000 SCFH. Thanks for your help!
Picture of what I'm talking about:
Question: How come for a 627 regulator for example, if we reach the maximum inlet pressure than the trim size can handle,
how come the flow capacity at the max inlet pressure is way less than the flow capacity with an inlet pressure that's half the max inlet pressure?
Example: Table 9 - Type 627 Capacities for NPS 2 body size and orifice size = 1/2 in - Outlet Press = 60 PSIG; Inlet pressure: 300 PSIG => Capacity = 79,000 SCFH. For the same regulator, same outlet pressure, if inlet pressure = 750 PSIG => Capacity = 32,000 SCFH. Thanks for your help!
Picture of what I'm talking about: