VVF53.125-250

VVF53.125-250

2-port seat valve, flanged, PN25, DN125, kvs 250

Stroke                                                 To DN 50: 20 mm, From DN 65: 40 mm

Leakage rate                                     0…0.01 % of k_vs value

DN                                                      125

k_vs                                                        250 m³/h

Medium temperature                       -20…220 °C

Valve characteristic                         Equal percentage , k_vs 250/400 linear

Rangeability                                     DN 15, k_vs ≤ 1,25 m³/h: >50 , DN 15…150: >100

Permissible operating pressure    2500 kPa

Material, valve body                         Nodular cast iron EN-GJS-400-18-LT

Material, inside set                           Stainless steel

PN class                                            PN 25

Absolute pressure p1 steam          1600 kPa abs

SAV..  Δp_max                                      90 kPa

SAV..Δp_s                                            125 kPa

SKC..Δp_max                                        160 kPa

SKC..Δp_s                                           175 kPa

SKC.. Δp_max steam                           300 kPa

SKC.. Δp_s steam                               2500 kPa