Direct Acting for steam

Pressure Reducing Valves Direct Acting for steam RE20

Pressure Reducing Valves Direct Acting for steam

RE20

      Pressure Reducing Valves Direct Acting for steam RE20

      Features/Applications

      Features

      • Self-acting pressure reducing valve for steam

        This valve reduces the steam supply pressure to a defined outlet pressure and keeps it steady, even under downstream fluctuations . The valves needs no seperate energy source.

      • Operating features of direct acting pressure reducing valves

        Pressure changes on the downstream side are detected in the detection chamber, and the degree of opening of the valve is directly adjusted to keep the pressure on the downstream side at set pressure.

      • Wide range of pressure reduction

        Due to carfefully selected springs an outstanding reduction ratio of 25:1 is achieved.

      • Diaphram free design

        The valve operates with an O-ring sealing and a piston design. Due to this design, no daiphragm and no external sensing line is required.

      • Superb durability

        Highly durable and carefully selected components, a 360° free rotating, conical plug and the lack of a sensitive diaphragm ensure outstanding lifetime of this valve.

      • Options available

        - additional pressure gauges
        - tailored connections for special applications
        - softsealing for leakage class VI

      Typical applications

      Perfect for all applications with medium to high steam flow or high reduction. In particuliar power plants, chemical and petrochemical process applications, ships, food and beverage plants, and other similar installations of of compact steam equipment.

      Dimensions/Weight

      Dimensions/Weight

      RE20_Dimension_dwg.png

       

      Size

      (DN)

      Dimensions (mm)

      Kvs

      Value

      Weight

      (kg)

      L H h
      15 130 410 82 1,8 11,4
      20 150 66 3,2 11,4
      25 160 66 5,0 12,5
      32 180 81 7,9 14,5
      40 200 83 13,0 16,0
      50 230 586 100 20,0 35,0
      65 290 615 113 34,0 39,5
      80 310 733 140 51,0 52,5
      100 350 762 154 80,0 68,0
      125 400 715 210 130,0 150,0
      150 480 720 235 180,0 180,0
      200 600 950 285 320,0 330,0

       

      Specifications

      Body Material
       
      Ductile cast iron
      EN-GJS-400-15
      (GGG-40,0.7040)
       
      Body design conditions
        PN16
      Max. design pressure (MPa)           PMA 1,6
      Max. design temperature (℃)        TMA 350
      Max. operating pressure (MPa)     PMO 1,5
      Max. operating temperature (℃)  TMO 350
      Pressure - Temperature rating
      PN Temperature ℃
      -10・・・+50 100 150 200 250 300 350
      Pressure MPa
      PN16 1,6 1,6 1,6 1,5 1,4 1,3 1,1
      PN25 2,5 2,5 2,4 2,3 2,2 2,0 1,8
      Secondary pressure ranges

      Secondary

      pressure range

      DN15-DN40 DN50 DN65 DN80 DN100 DN125-DN200
      MPa Spring number per size
      0,05-0,1 9 28 27 38 37 On request
      0,1-0,16 8 27 26 37 36
      0,16-0,25 7 26 25 36 35
      0,25-0,4 6 25 24 35 34
      0,4-0,63 5 24 23 34 33
      0,63-1,0 4 23 22 33 32
      1,0-1,6 3 22 21 32 32

      Secondary pressure higher than 1,6 MPa on request

      A minimum differential pressure of 0,05 MPa is required. 

      Steam Flow Rate

      RE20_p14.png

      RE20_p15.png

      RE20_p16.png

      Features

      • Self-acting pressure reducing valve for steam

        This valve reduces the steam supply pressure to a defined outlet pressure and keeps it steady, even under downstream fluctuations . The valves needs no seperate energy source.

      • Operating features of direct acting pressure reducing valves

        Pressure changes on the downstream side are detected in the detection chamber, and the degree of opening of the valve is directly adjusted to keep the pressure on the downstream side at set pressure.

      • Wide range of pressure reduction

        Due to carfefully selected springs an outstanding reduction ratio of 25:1 is achieved.

      • Diaphram free design

        The valve operates with an O-ring sealing and a piston design. Due to this design, no daiphragm and no external sensing line is required.

      • Superb durability

        Highly durable and carefully selected components, a 360° free rotating, conical plug and the lack of a sensitive diaphragm ensure outstanding lifetime of this valve.

      • Options available

        - additional pressure gauges
        - tailored connections for special applications
        - softsealing for leakage class VI

      Typical applications

      Perfect for all applications with medium to high steam flow or high reduction. In particuliar power plants, chemical and petrochemical process applications, ships, food and beverage plants, and other similar installations of of compact steam equipment.

      Dimensions/Weight

      RE20_Dimension_dwg.png

       

      Size

      (DN)

      Dimensions (mm)

      Kvs

      Value

      Weight

      (kg)

      L H h
      15 130 410 82 1,8 11,4
      20 150 66 3,2 11,4
      25 160 66 5,0 12,5
      32 180 81 7,9 14,5
      40 200 83 13,0 16,0
      50 230 586 100 20,0 35,0
      65 290 615 113 34,0 39,5
      80 310 733 140 51,0 52,5
      100 350 762 154 80,0 68,0
      125 400 715 210 130,0 150,0
      150 480 720 235 180,0 180,0
      200 600 950 285 320,0 330,0

       

      Body Material
       
      Ductile cast iron
      EN-GJS-400-15
      (GGG-40,0.7040)
       
      Body design conditions
        PN16
      Max. design pressure (MPa)           PMA 1,6
      Max. design temperature (℃)        TMA 350
      Max. operating pressure (MPa)     PMO 1,5
      Max. operating temperature (℃)  TMO 350
      Pressure - Temperature rating
      PN Temperature ℃
      -10・・・+50 100 150 200 250 300 350
      Pressure MPa
      PN16 1,6 1,6 1,6 1,5 1,4 1,3 1,1
      PN25 2,5 2,5 2,4 2,3 2,2 2,0 1,8
      Secondary pressure ranges

      Secondary

      pressure range

      DN15-DN40 DN50 DN65 DN80 DN100 DN125-DN200
      MPa Spring number per size
      0,05-0,1 9 28 27 38 37 On request
      0,1-0,16 8 27 26 37 36
      0,16-0,25 7 26 25 36 35
      0,25-0,4 6 25 24 35 34
      0,4-0,63 5 24 23 34 33
      0,63-1,0 4 23 22 33 32
      1,0-1,6 3 22 21 32 32

      Secondary pressure higher than 1,6 MPa on request

      A minimum differential pressure of 0,05 MPa is required. 

      RE20_p14.png

      RE20_p15.png

      RE20_p16.png

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