The pressure regulator direct action lever flange ng/ng

The pressure regulator direct action lever designed to maintain a predetermined pressure in the pipelines for liquid and gaseous non-aggressive environments, neutral the parts in contact with the working environment.
Options: maintaining the set pressure "before" and "after".
Specifications

1. Nominal diameter, mm 50, 80, 100, 150
2. The working environment is non-aggressive liquid and gaseous.
3. Ambient temperature from -15 to 300 °C.
4. Pressure conventional Roux - 1.6 MPa (16 kgf/cm2).
5. Pressure regulation Reg, MPa - 1-2
6. Uneven regulation should not exceed 16% of the average value of the regulated pressure.
7. Case type - passing.
8. The connection to the pipe - flange.
9. The installation position of the regulator in a horizontal pipeline, the membrane head straight up.
10. Materials of main parts shown in the table

The name of the material

Material
corps, covers SCH 20 GOST 1412-85
saddle valve 20X13 GOST 5632-72
membrane tmcm-With-1x3-57 GOST 7338-77

1 - pressure regulator, 2 - shut-off valve, 3 - filter, 4,6,8 - gauge, 5 - throttling valve, 7 - pulse tube.

The device and principle of operation

Pressure regulators "before" and "after" are mainly the design of the regulatory authority - dvuhsezonnogo valve and its position. The movable part of the lever system has a prismatic support.

The controller operates as follows. When steady state for regulator (or to him) to maintain the specified pressure and movable the system is in equilibrium. With controlled pressure changing the force acting on the sensitive element of the membrane, and under the effect of the difference between this power, mahdaviani weight of cargo, mobile the controller system moves to a new position until, until a balance is reached.

The controller is equipped with a membrane head and set of goods to the desired limit regulation.

The dependence of the choice of membrane heads and cargo from the desired limit regulation

The limits of the regulated pressure, MPa (kgf/cm2)

For DN 50...150 mm

Total cargo weight, kg
the room membrane of the head weight, kg
5 3 1
the number of cargo
0,015...0,065 (0,15...0,65) 4 2 - 2 12
0,065...0,085 (0,65...0,85) 4 3 - 2 17
0,085...0,1 (0,85...1,0) 4 4 - 1 21
0,1...0,2 (1,0...2,0) 2 1 1 - 8
0,2...0,25 (2,0...2,5) 2 2 - 1 11
0,25...0,35 (2,5...3,5) 2 3 1 - 18
0,35...0,5 (3,5...5,0) 2 6 - - 30
0,5...0,8 (5,0...8,0) 1 3 - 2 17
0,8...0,95 (8,0...9,5) 1 4 - 1 21
0,95...1,3 (9,5...13,0) 1 6 - - 30