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Control valves with pneumatic actuators up to 350°C With Flanged connection, PN 16-40, Cast iron / Spheroidal graphite / Cast steel / Stainless, with pneumatic actuators Features · Suitable in building and process engineering for various mediums 0...+200°C · Suitable with stuffing box extension or stem seal with stainless steel bellow to –10...+350°C and for valves made of stainless steel to –30...+350°C · Suitable with stem heater for water with antifreeze compounds down to –10°C and for valves made of stainless steel to –30°C · Actuators with high thrust and short actuation time · Mode of operation: spring opens / air closes or opens Technical data valve
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Series
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BR2 / BR3
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Form
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Two-way / Three-way
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Diameter nominal
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DN 15 – DN 300
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Pressure rating
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PN 16 – PN 40
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Body
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Cast iron (EN-JL1040) / Spheroidal graphite (EN-JS1024) / Cast steel (1.0619+N) / Stainless steel (1.4408)
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Stroke [mm]
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20 – 80
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Rangeability
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≥ 50:1
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Function: BR216/225/240S/240E as two-way valve BR316/325/340S/340E as mixing valve or BR316/325/340S/340E as diverting valve with reduced closing pressure Face to face dimension: Acc. EN 558-1 basic series 1 Leakage rate: EN 1349 – seat-leakage IV L1 (≤ 0.01% of kvs-value) Stem sealing:
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O-rings made of EPDM
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0...+180°C
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chilled and hot-water with max. 50%
antifreeze and anti-corrosive compounds:
glycol, ethylene glycol, mono ethylene,
ethanol, methyl alcohol, glycerine, antifrogen ® N+L
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O-rings made of FKM
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0...+200°C
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media based on mineral oil
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O-rings made of Fluoraz®
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0...+200°C
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hot water, steam, oil, lye, acids
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Graphite-Packing
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0...+350°C
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hot water, steam, oil, lye, acids
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Technicals Actuators
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Type
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PA-N160
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PA-N300
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PA-N540
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PA-N1080
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PA-N2160
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Diaphragm area cm2
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160
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300
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540
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1080
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2160
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Operating pressure, max. bar
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6
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6
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6
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6
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6
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Spring range bar
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1.8 – 3.0
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1.6-2.4
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1.6-2.8
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1.7-2.7
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1.7-3.3
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1.7-3.7
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1.5-2.4
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1.5-2.7
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1.5-3.0
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1.5-2.4
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1.5-2.7
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1.5-3.0
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Spring force kN
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2.8
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5
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5
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9
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9
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9
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16
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16
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16
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32
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32
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32
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Stroke mm
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20
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20
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30
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30
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50
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60
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60
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80
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100
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60
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80
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100
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Volume ltr
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0.5
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1.0
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1.3
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3.7
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4.8
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5.3
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9.9
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12.5
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14.2
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19.8
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25.4
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28.5
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Ambient temperature: -40...+80°C Operating mode: alternatively spring closes / opens
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