Regulating Valves (Pressure regulators)
Design features
The regulators provide smooth pressure adjustment within the range of disc position 15° to 75°. Smooth pressure adjustment is achieved by using special shape the disc designed by “hydrogasdynamic analysis” program STAR-CD.
The regulators are earthquake-proof and can provide reliable performance under seismic load of 7 MSK-64 scale; durability and strength under seismic load of up to 9 MSK-64 scale provided max installation height is 10 m.
The regulators are designed to have a run of continuous operation of 8500 hours per annum.
The regulator design provides for the ability to perform multiple (up to 40 within service life) hydraulic pressure tests P=1.5PN (12.0 MPa).
The body parts of the valve (body, cover) are made of cast carbon steel resistant to chemical and temperature effects of line medium.
Due to smaller dimensions and weight it becomes possible to use the regulators in narrow spaces and with minimum number of supports for the pipeline. The yoke is featured with rolling bearings decreasing the effort of the actuator and facilitating valve operation.
Parts and materials:
|
Name
|
Material |
| DIN |
ASTM |
| Body |
GS-16Mn5. GS-20Mn5 |
A216 Gr WCC |
| Disc |
GS-16Mn5. GS-20Mn5 |
A216 Gr WCC |
| Mating flanges |
13Mn6 |
A350LF2 |
| Shaft |
X20CrNi 17.2 |
A176, A479, AISI 431 |
| Nut |
41CrS4 |
A331, AISI 5140 |
| Pin |
24CrMo5, 1.7218 |
A507, A519 |
| Sleeve |
CuAl10Ni5Fe4(2.0966) |
C63000 |
| Gasket |
Rubber B14 |
Application
The regulating valves are used in automatic control systems of oil pumping stations.
The regulators are designed to maintain certain pressure values (minimum at the input and maximum at the output of oil pumping station) by means of flow throttling.
Medium –oil at the temperature below +100 C°.
Oil may contain mechanical admix in the form of grit and slag max size 5 mm and Moss hardness max 7.
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