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Help CenterRP-6 High-sensitivity Steam Pressure Reducing Valve
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Brief Introduction.
RP-6 high-sensitivity steam pressure reducing valve is pilot piston type pressure reducing valve mainly used for steam.The product made following improvement on the basis of normal pressure reducing valve, enlarge the piston area, change the throttle structure, change the sealing manner, improve the pilot structure and manner of adjusting spring, thus to improve the performance of the product.In general,It has following features :
1.Improve the sensing effect to outlet pressure change, increase the sensitivity, greatly reduce the pressure deviation caused by upper stream pressure change and flow change.
2.Improve the distribution of flow line, reduce the noise.
3.Improve the structure of sealing surface; prolong the service life of sealing surface.
The product is mainly applied on steam piping, especially the steam piping with big change of pressure and flow.
Working Principle.
This series reducing valve is pilot piston type reducing valve, mainly composed of main valve and pilot valve. The main valve consists of valve seat, main valve disc, piston, cylinder sleeve, and spring. The piston valve consists of valve seat, valve flap, membrane, spring and adjusting spring. Set the outlet pressure through adjusting spring, sense the change of pressure of outlet with membrane, adjust the flow area of throttling part of main valve through open and close of pilot valve and drive the piston, to realize the function of reducing and regulating valve.
Field of Application.
Product Name: RP-6 High-Sensitivity Steam Pressure Reducing Valve.
Pressure Rating: 1.0- 1.6 Mpa.
Nominal Diameter: DN15-80 mm.
Body Material: Steel WCB.
Standard Flanges: DIN, ANSI, JIS.
Main Technical Parameters and Indexes of Performance.
Nominal Pressure |
1.0 Mpa |
1.6 Mpa |
Tested Pressure Of Shell |
1.5 Mpa |
2.4 Mpa |
Sealing Test Pressure |
1.0 Mpa |
1.6 Mpa |
Maximum Upstream Pressure |
1.0 Mpa |
1.6 Mpa |
Pressure Range Of Outlet |
0.04-0.6 Mpa |
0.04-1.0 Mpa |
Minimum Differential Pressure |
0.05 Mpa |
0.04 Mpa |
Medium |
Steam |
|
Operating Temperature |
425 |
|
*the shell test does not include membrane and top cover.
Flow Characteristics.
DN |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
Cv |
1 |
2.5 |
4 |
6.5 |
9 |
16 |
25 |
36 |
Material of Main Component.
Name Of Component |
Material Of Component |
Valve Body,Valve Cover,Seat Cover |
WCB |
Valve Seat, Valve Flap |
2Cr13 |
Cylinder Sleeve, Piston |
Ampco |
Membrane |
PH15-7Mo |
Piston Ring |
Polyphenyl |
Pilot Valve Seat, Pilot Valve Rod |
2Cr13 |
Spring Of Main Valve |
50CrVA |
Main Spring Of Pilot Valve |
50CrVA |
Adjusting Spring |
60Si2Mn |
Main External Dimensions.
|
DN |
External Dimension |
||
L |
H |
H1 |
|
15 |
140 |
160 |
65 |
20 |
140 |
160 |
65 |
25 |
150 |
168 |
68 |
32 |
180 |
185 |
75 |
40 |
180 |
185 |
78 |
50 |
200 |
193 |
88 |
65 |
230 |
208 |
98 |
80 |
260 |
228 |
117 |
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