product description
The pressure reducing valve is mainly used for the steam pipeline and functions as a pressure reducing regulator. It is a pilot piston type pressure reducing valve. It consists of two parts: the main valve and the pilot valve. The main valve is mainly composed of a valve seat, a main valve disc, a piston, a spring and the like. The pilot valve is mainly composed of a valve seat, a valve disc, a diaphragm, a spring, an adjustment spring and the like. This product has been greatly improved on the basis of the ordinary pressure reducing valve, which has increased the piston area and changed the throttling structure. The sealing form has been changed, the flow area has been increased, and the like, thereby greatly improving the performance in terms of sensitivity, flow rate, and life. This product is mainly used in steam pipelines, and is suitable for steam pipelines with large flow and large flow changes and large inlet pressure changes.
Main technical parameters and performance indicators
Nominal pressure (Mpa) | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
Shell test pressure (Mpa) | 2.4 | 3.75 | 6.0 | 9.6 | 15.0 | twenty four |
Seal test pressure (Mpa) | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
Maximum import pressure (Mpa) | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
Export pressure range (Mpa) | 0.1-1.0 | 0.1-1.6 | 0.1-2.5 | 0.5-3.5 | 0.5-3.5 | 0.5-4.5 |
Pressure characteristic deviation (Mpa) △ P2P | GB12246-1989 | |||||
Flow characteristic deviation (Mpa) P2G | GB12246-1989 | |||||
Minimum differential pressure (Mpa) | 0.15 | 0.15 | 0.2 | 0.4 | 0.8 | 1.0 |
Leakage | GB12245-1989 |
The shell test does not include the diaphragm or the top cover.
Main dimensions
DN | L | H1 | H | D |
15 | 147 | 235 | 145 | 207 |
20 | 154 | 235 | 145 | 207 |
25 | 160 | 235 | 145 | 207 |
32 | 180 | 250 | 160 | 220 |
40 | 16 | 250 | 160 | 220 |
50 | 230 | 270 | 180 | 220 |