GP1000 Pilot Type Piston Steam Regulator

Valve design: PN25
PMO Maximum working pressure under saturated steam: 16bar g
TMO Maximum working temperature: 220℃
Inlet pressure: 1bar-16bar
Reduced pressure: 0.5bar-14bar

Material list:

Pressure control range:

Blue spring: 0.5bar-9bar
Green spring: 1bar-14bar

Reduced pressure is set to 0.1 MPawhen inlet pressure is 1.0 MPa. The chart indicates a variation in reduced pressure when the inlet pressure is changed from 0.3 to 1.6 MPa.

For example 1
Take a pressure reducing valve whose inlet pressure is(P1) 0.6 MPa, reduced pressure (P2) 0.4 MPa, flow rate 600 kg/h. When determining the nominal size, find the point of intersection (A) of inlet pressure 0.6 MPa and reduced pressure 0.4 MPa. Vertically proceed from point (A) to come across the flow rate 600 kg/h, and regard this point as (B). Point (B) is between nominal sizes 40 and 50. Select the larger nominal size ，in this example, nominal size 50.
For example 2
Take a pressure reducing valve whose inlet pressure is(P1) 0.8 MPa, reduced pressure (P2) 0.05 MPa, flow rate 600 kg/h. When determining the nominal size, find the point of intersection (C) of inlet pressure 0.8 MPa and reduced pressure 0.05 MPa. Vertically proceed from point (D) to come across the flow rate 600 kg/h, and regard this point as (E). Point (E) is between nominal sizes 32 and 40. Select the larger nominal size ，in this example, nominal size 40.
Secure a safety rate of 80 to 90%

* When the primary pressure is greater than 0.7MPa and the decompression ratio is greater than 10:1, the rated Cv value is multiplied by the correction factor C obtained in figure 1 to calculate the Cv correction value.