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1.2 Technical data
6 EB 5766 EN
Design and principle of operation
1. Single-seated Type 3222 Globe Valve
Nominal size DN 15 20 25 32 40 50
Version with threaded ends
with flanges
as flanged body
••••••
Thread size G ½¾1 –––
Version with female thread • • • – – –
Nominal pressure PN 25
Seat/plug sealing Metal sealing for K
VS
≤
2.5 · Soft sealing for K
VS
≥
3.6
Rated travel mm 6 12
Rangeability 50 : 1
Leakage class acc. to DIN EN 1349 Class I (< 0.05 % of K
VS
coefficient)
Version for water, oil and other liquids
Max. permissible temperature 150 °C
1, 2)
Max. permissible differential pressure
Δ
p in bar
Types 5724 and 5725 20 12
Type 5757 20 –
Version for water and steam
Max. permissible temperature 200 °C
Max. permissible differential pressure
Δ
p in bar
Types 5724 and 5725 20 · 10 for 3.6
≤
K
VS
≤
88
Type 5757 20
3)
· 5
4)
5–
Materials
Valve body Red brass CC491K · EN-JS1049 (flanged body)
Seat Stainless steel 1.4104
Plug 1.4104/CW509L with soft sealing · 1.4104 for 0.1
≤
K
VS
≤
2.5
Valve spring Stainless steel 1.4310 K
Packing EPDM/FPM (FKM) · Oil-resistant version: FPM
Welding ends St 37
Threaded ends Red brass CC491K
Screwed-on flanges St 37.2