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VVF21 Siemens
Control valve flanged

production of discontinued

VVF21 Siemens Control valve flanged
calculation and selection
91 % - model rating
Technical description
Model
VVF21
Manufacturer
Country
Switzerland
Allowable working fluids
Water
Body material
cast iron
Control element
globe valve
Flow characteristic
logarithmic-linear
Regulation
proportional
Pressure-balanced valve
-
Connection type
flanged
Drive connection
-
Tmax (for water)
150 °C
Tmin (for water)
-10 °C
PN
6
Kvs m³/h
dP= 0.0 kPa

technical
specifications
price

DN
mm 		Kvs
m³/h 		L
mm 		h
mm 		compatible with
actuator 		price
25 1.90
2.50
3.00
4.00
5.00
6.30
7.50
10,0
 150 20

SKD32
Siemens : dPmax = 3.0 bar

SKD60
Siemens : dPmax = 3.0 bar

SKD82
Siemens : dPmax = 3.0 bar

SKB32
Siemens : dPmax = 3.0 bar

SKB60
Siemens : dPmax = 3.0 bar

SKB82
Siemens : dPmax = 3.0 bar

 production of discontinued
40 12
16
19
25
 180 20

SKD32
Siemens : dPmax = 3.0 bar

SKD60
Siemens : dPmax = 3.0 bar

SKD82
Siemens : dPmax = 3.0 bar

SKB32
Siemens : dPmax = 3.0 bar

SKB60
Siemens : dPmax = 3.0 bar

SKB82
Siemens : dPmax = 3.0 bar

 production of discontinued
50 31
40
 200 20

SKD32
Siemens : dPmax = 3.0 bar

SKD60
Siemens : dPmax = 3.0 bar

SKD82
Siemens : dPmax = 3.0 bar

SKB32
Siemens : dPmax = 3.0 bar

SKB60
Siemens : dPmax = 3.0 bar

SKB82
Siemens : dPmax = 3.0 bar

 production of discontinued
65 49
63
 240 20

SKD32
Siemens : dPmax = 2.8 bar

SKD60
Siemens : dPmax = 2.8 bar

SKD82
Siemens : dPmax = 2.8 bar

SKB32
Siemens : dPmax = 3.0 bar

SKB60
Siemens : dPmax = 3.0 bar

SKB82
Siemens : dPmax = 3.0 bar

 production of discontinued
80 78
100
 260 20

SKD32
Siemens : dPmax = 1.8 bar

SKD60
Siemens : dPmax = 1.8 bar

SKD82
Siemens : dPmax = 1.8 bar

SKB32
Siemens : dPmax = 3.0 bar

SKB60
Siemens : dPmax = 3.0 bar

SKB82
Siemens : dPmax = 3.0 bar

 production of discontinued
100 124
160
 300 40 production of discontinued

DN - nominal diameter, mm.

L - length along the pipeline axis, mm.

h - valve stem travel, mm.

dP - permissible pressure drop across the valve (for water), bar.

Kvs - flow capacity, corresponds to the water flow rate in m³/h, at which the pressure drop across the valve will be 1 bar.

question : comment : feedback

where to notify about the reply. not published anywhere
Kvs
Flow coefficient
m³/h
PN
Nominal pressure PN
bar
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