Procedure for valve sizing - Basic Documentation - VVF22.100-160 - VVF22.25-10 - VVF22.25-2.5 - VVF22.25-4 - VVF22.25-6.3 - VVF22.40-16 - VVF22.40-25 - VVF22.50-40 - VVF22.65-63 - VVF22.80-100 - VVF32.100-160 - VVF32.125-250 - VVF32.15-1.6 - VVF32.15-2.5 - VVF32.15-4 - VVF32.150-400 - VVF32.25-10 - VVF32.25-6.3 - VVF32.40-16 - VVF32.40-25 - VVF32.50-40 - VVF32.65-63 - VVF32.80-100 - VVF42.100-125 - VVF42.100-160 - VVF42.100-160K - VVF42.125-200 - VVF42.125-250 - VVF42.125-250K - VVF42.15-1.6 - VVF42.15-2.5 - VVF42.15-4 - VVF42.150-315 - VVF42.150-360K - VVF42.150-400 - VVF42.20-6.3 - VVF42.25-10 - VVF42.25-6.3 - VVF42.32-16 - VVF42.40-16 - VVF42.40-25 - VVF42.50-31.5 - VVF42.50-40 - VVF42.50-40K - VVF42.65-50 - VVF42.65-63 - VVF42.65-63K - VVF42.80-100 - VVF42.80-100K - VVF42.80-80 - VVF43.100-125 - VVF43.100-150K - VVF43.100-160 - VVF43.125-200 - VVF43.125-220K - VVF43.125-250 - VVF43.150-315 - VVF43.150-315K - VVF43.150-400 - VVF43.200-450K - VVF43.250-630K - VVF43.65-50 - VVF43.65-63 - VVF43.65-63K - VVF43.80-100 - VVF43.80-100K - VVF43.80-80 - VVF53.100-150K - VVF53.100-160 - VVF53.125-220K - VVF53.125-250 - VVF53.15-0.16 - VVF53.15-0.2 - VVF53.15-0.25 - VVF53.15-0.32 - VVF53.15-0.4 - VVF53.15-0.5 - VVF53.15-0.63 - VVF53.15-0.8 - VVF53.15-1 - VVF53.15-1.25 - VVF53.15-1.6 - VVF53.15-2 - VVF53.15-2.5 - VVF53.15-3.2 - VVF53.15-4 - VVF53.150-315K - VVF53.150-400 - VVF53.20-6.3 - VVF53.200-450K - VVF53.25-10 - VVF53.25-5 - VVF53.25-6.3 - VVF53.25-8 - VVF53.250-630K - VVF53.32-16 - VVF53.40-12.5 - VVF53.40-16 - VVF53.40-20 - VVF53.40-25 - VVF53.50-31.5 - VVF53.50-40 - VVF53.50-40K - VVF53.65-63 - VVF53.65-63K - VVF53.80-100 - VVF53.80-100K - VVG41.11 - VVG41.12 - VVG41.13 - VVG41.14 - VVG41.15 - VVG41.15-1.6K - VVG41.15-2.5K - VVG41.15-4K - VVG41.20 - VVG41.25 - VVG41.32 - VVG41.40 - VVG41.50 - VXF22.100-160 - VXF22.25-10 - VXF22.25-2.5 - VXF22.25-4 - VXF22.25-6.3 - VXF22.40-16 - VXF22.40-25 - VXF22.50-40 - VXF22.65-63 - VXF22.80-100 - VXF32.100-160 - VXF32.125-250 - VXF32.15-1.6 - VXF32.15-2.5 - VXF32.15-4 - VXF32.150-400 - VXF32.25-10 - VXF32.25-6.3 - VXF32.40-16 - VXF32.40-25 - VXF32.50-40 - VXF32.65-63 - VXF32.80-100 - VXF42.100-125 - VXF42.100-160 - VXF42.125-200 - VXF42.125-250 - VXF42.15-1.6 - VXF42.15-2.5 - VXF42.15-4 - VXF42.150-315 - VXF42.150-400 - VXF42.20-6.3 - VXF42.25-10 - VXF42.25-6.3 - VXF42.32-16 - VXF42.40-16 - VXF42.40-25 - VXF42.50-31.5 - VXF42.50-40 - VXF42.65-50 - VXF42.65-63 - VXF42.80-100 - VXF42.80-80 - VXF43.100-125 - VXF43.100-160 - VXF43.125-200 - VXF43.125-250 - VXF43.150-315 - VXF43.150-400 - VXF43.65-50 - VXF43.65-63 - VXF43.80-100 - VXF43.80-80 - VXF53.100-160 - VXF53.125-250 - VXF53.15-1.6 - VXF53.15-2.5 - VXF53.15-4 - VXF53.150-400 - VXF53.20-6.3 - VXF53.25-10 - VXF53.25-6.3 - VXF53.32-16 - VXF53.40-16 - VXF53.40-25 - VXF53.50-40 - VXF53.65-63 - VXF53.80-100 - VXG41.1301 - VXG41.1401 - VXG41.15 - VXG41.1501 - VXG41.20 - VXG41.2001 - VXG41.25 - VXG41.2501 - VXG41.32 - VXG41.3201 - VXG41.40 - VXG41.4001 - VXG41.50 - VXG41.5001

Valves VVF..,VXF..,VVG41.., VXG41.., VVI41.., VXI41..
Product Family
Acvatix
Product Group
Large Stroke (BC1)
Content Language
English
Content Type
Basic Documentation
Status
Valid
Date
2017-10-25
Document No
CE1P4030en
Download ID
A6V10344990
Stock No.
BPZ:VVG41.11
BPZ:VVG41.12
BPZ:VVG41.13
BPZ:VVG41.14
BPZ:VVG41.15
BPZ:VVG41.15-1.6K
BPZ:VVG41.15-2.5K
BPZ:VVG41.15-4K
BPZ:VVG41.20
BPZ:VVG41.25
BPZ:VVG41.32
BPZ:VVG41.40
BPZ:VVG41.50
BPZ:VXG41.1301
BPZ:VXG41.1401
BPZ:VXG41.15
BPZ:VXG41.1501
BPZ:VXG41.20
BPZ:VXG41.2001
BPZ:VXG41.25
BPZ:VXG41.2501
BPZ:VXG41.32
BPZ:VXG41.3201
BPZ:VXG41.40
BPZ:VXG41.4001
BPZ:VXG41.50
BPZ:VXG41.5001
S55200-V100
S55200-V101
S55200-V102
S55200-V103
S55200-V104
S55200-V105
S55200-V106
S55200-V107
S55200-V108
S55200-V109
S55200-V110
S55200-V111
S55200-V112
S55200-V113
S55200-V114
S55200-V115
S55200-V116
S55200-V117
S55200-V118
S55200-V119
S55202-V100
S55202-V101
S55202-V102
S55202-V103
S55202-V104
S55202-V105
S55202-V106
S55202-V107
S55202-V108
S55202-V109
S55202-V110
S55202-V111
S55202-V112
S55202-V113
S55202-V114
S55202-V115
S55202-V116
S55202-V117
S55202-V118
S55202-V119
S55202-V120
S55202-V121
S55202-V122
S55202-V123
S55202-V124
S55202-V125
S55204-V100
S55204-V101
S55204-V102
S55204-V103
S55204-V104
S55204-V105
S55204-V106
S55204-V107
S55204-V108
S55204-V109
S55204-V110
S55204-V111
S55204-V112
S55204-V113
S55204-V114
S55204-V115
S55204-V116
S55204-V117
S55204-V118
S55204-V119
S55204-V120
S55204-V121
S55204-V122
S55204-V123
S55204-V124
S55204-V125
S55204-V126
S55204-V127
S55204-V128
S55204-V129
S55204-V130
S55204-V131
S55204-V132
S55204-V133
S55204-V134
S55204-V135
S55204-V136
S55204-V137
S55204-V138
S55204-V139
S55204-V140
S55204-V141
S55204-V142
S55204-V143
S55204-V144
S55204-V145
S55204-V146
S55204-V147
S55206-V100
S55206-V101
S55206-V102
S55206-V103
S55206-V104
S55206-V105
S55206-V106
S55206-V107
S55206-V108
S55206-V109
S55206-V110
S55206-V111
S55206-V115
S55206-V116
S55206-V117
S55206-V118
S55206-V119
S55206-V120
S55206-V121
S55206-V122
S55206-V123
S55206-V124
S55206-V125
S55206-V126
S55206-V127
S55206-V128
S55206-V129
S55208-V100
S55208-V101
S55208-V102
S55208-V103
S55208-V104
S55208-V105
S55208-V106
S55208-V107
S55208-V108
S55208-V109
S55208-V110
S55208-V111
S55208-V112
S55208-V113
S55208-V114
S55208-V116
S55208-V117
S55208-V118
S55208-V119
S55208-V120
S55208-V122
S55208-V123
S55208-V124
S55208-V125
S55208-V126
S55208-V127
S55208-V128
S55208-V129
S55208-V130
S55208-V131
S55208-V132
S55208-V133
S55208-V134
S55208-V135
S55208-V136
S55208-V140
S55208-V141
S55208-V142
S55208-V144
S55208-V145
S55208-V146
S55208-V148
S55208-V149
S55208-V150
S55208-V152
S55208-V153
S55208-V154
S55208-V155
S55208-V156
S55208-V157
S55208-V158
S55208-V159
S55208-V160
S55208-V161
S55208-V162
Product No.
VVF22.100-160
VVF22.25-10
VVF22.25-2.5
VVF22.25-4
VVF22.25-6.3
VVF22.40-16
VVF22.40-25
VVF22.50-40
VVF22.65-63
VVF22.80-100
VVF32.100-160
VVF32.125-250
VVF32.15-1.6
VVF32.15-2.5
VVF32.15-4
VVF32.150-400
VVF32.25-10
VVF32.25-6.3
VVF32.40-16
VVF32.40-25
VVF32.50-40
VVF32.65-63
VVF32.80-100
VVF42.100-125
VVF42.100-160
VVF42.100-160K
VVF42.125-200
VVF42.125-250
VVF42.125-250K
VVF42.15-1.6
VVF42.15-2.5
VVF42.15-4
VVF42.150-315
VVF42.150-360K
VVF42.150-400
VVF42.20-6.3
VVF42.25-10
VVF42.25-6.3
VVF42.32-16
VVF42.40-16
VVF42.40-25
VVF42.50-31.5
VVF42.50-40
VVF42.50-40K
VVF42.65-50
VVF42.65-63
VVF42.65-63K
VVF42.80-100
VVF42.80-100K
VVF42.80-80
VVF43.100-125
VVF43.100-150K
VVF43.100-160
VVF43.125-200
VVF43.125-220K
VVF43.125-250
VVF43.150-315
VVF43.150-315K
VVF43.150-400
VVF43.200-450K
VVF43.250-630K
VVF43.65-50
VVF43.65-63
VVF43.65-63K
VVF43.80-100
VVF43.80-100K
VVF43.80-80
VVF53.100-150K
VVF53.100-160
VVF53.125-220K
VVF53.125-250
VVF53.15-0.16
VVF53.15-0.2
VVF53.15-0.25
VVF53.15-0.32
VVF53.15-0.4
VVF53.15-0.5
VVF53.15-0.63
VVF53.15-0.8
VVF53.15-1
VVF53.15-1.25
VVF53.15-1.6
VVF53.15-2
VVF53.15-2.5
VVF53.15-3.2
VVF53.15-4
VVF53.150-315K
VVF53.150-400
VVF53.20-6.3
VVF53.200-450K
VVF53.25-10
VVF53.25-5
VVF53.25-6.3
VVF53.25-8
VVF53.250-630K
VVF53.32-16
VVF53.40-12.5
VVF53.40-16
VVF53.40-20
VVF53.40-25
VVF53.50-31.5
VVF53.50-40
VVF53.50-40K
VVF53.65-63
VVF53.65-63K
VVF53.80-100
VVF53.80-100K
VVG41.11
VVG41.12
VVG41.13
VVG41.14
VVG41.15
VVG41.15-1.6K
VVG41.15-2.5K
VVG41.15-4K
VVG41.20
VVG41.25
VVG41.32
VVG41.40
VVG41.50
VXF22.100-160
VXF22.25-10
VXF22.25-2.5
VXF22.25-4
VXF22.25-6.3
VXF22.40-16
VXF22.40-25
VXF22.50-40
VXF22.65-63
VXF22.80-100
VXF32.100-160
VXF32.125-250
VXF32.15-1.6
VXF32.15-2.5
VXF32.15-4
VXF32.150-400
VXF32.25-10
VXF32.25-6.3
VXF32.40-16
VXF32.40-25
VXF32.50-40
VXF32.65-63
VXF32.80-100
VXF42.100-125
VXF42.100-160
VXF42.125-200
VXF42.125-250
VXF42.15-1.6
VXF42.15-2.5
VXF42.15-4
VXF42.150-315
VXF42.150-400
VXF42.20-6.3
VXF42.25-10
VXF42.25-6.3
VXF42.32-16
VXF42.40-16
VXF42.40-25
VXF42.50-31.5
VXF42.50-40
VXF42.65-50
VXF42.65-63
VXF42.80-100
VXF42.80-80
VXF43.100-125
VXF43.100-160
VXF43.125-200
VXF43.125-250
VXF43.150-315
VXF43.150-400
VXF43.65-50
VXF43.65-63
VXF43.80-100
VXF43.80-80
VXF53.100-160
VXF53.125-250
VXF53.15-1.6
VXF53.15-2.5
VXF53.15-4
VXF53.150-400
VXF53.20-6.3
VXF53.25-10
VXF53.25-6.3
VXF53.32-16
VXF53.40-16
VXF53.40-25
VXF53.50-40
VXF53.65-63
VXF53.80-100
VXG41.1301
VXG41.1401
VXG41.15
VXG41.1501
VXG41.20
VXG41.2001
VXG41.25
VXG41.2501
VXG41.32
VXG41.3201
VXG41.40
VXG41.4001
VXG41.50
VXG41.5001

Essential values and formulas required for valve sizing:

Sizing and selection of valves and actuators

1

Determine the basic hydraulic circuit

-

2

Determine ΔpVR or ΔpMV

One of the factors that determines control stability is the valve authority PV. It is determined depending on the type of header and the hydraulic circuit

  • Header with pressure and variable volumetric flow

  • Header with pressure and constant volumetric flow, or

  • Header with low differential pressure and variable volumetric flow

Continue with ΔpVR

Continue with ΔpMV

3

Determine ΔpV100

4

Determine the volumetric flow V100

Determine V100 depending on the type of medium

Water without antifreeze:

Water with antifreeze, heat transfer oil:

For steam, see "2.9 Sizing valves for steam", page 40

5

Determine the kvs value

There are different ways to determine the kvs value:

Flow chart

4030D01

By way of calculation

Determine the kvs value according to:

1)

or within the following band:

HIT sizing and selection:

www.siemens.com/hit

Valve slide rule

Ventilschieber

This procedure shows the mathematical approach. The following examples make use of the flow chart and show the way of calculation

6

Check the resulting differential pressure ΔpV100

The resulting differential pressure ΔpV100 is used for calculating the valve authority PV:

7

Select a suitable line of valves

Select the type of valve (2-port, 3-port, or 3-port valve with bypass):

  • Type of connection (flanged, externally or internally threaded, soldered)

  • PN class

  • Nominal size DN

  • Maximum or minimum medium temperature

  • Type of medium

8

Check the valve authority PV (control stability)

Check PV with the resulting differential pressure ΔpV100:

  • Header with pressure and variable volumetric flow

  • Header with pressure and constant volumetric flow, or

  • Header with low differential pressure and variable volumetric flow

9

Select the actuator

Select the actuator according to the following criteria:

  • Operating voltage

  • Positioning signal

  • Positioning time

  • Spring return function

  • Auxiliary functions

10

Check the working ranges

Differential pressure Δpmax > ΔpV0

Closing pressure Δps > H0

11

Valve and actuator

Write down product and stock number of the selected valve and actuator

1) Experience shows that the selected kvs value is usually too high. To the benefit of a higher valve authority Siemens recommends to check sensibly whether a valve with a kvs value of approx. 85 % of the calculated kvs value is possible. If this is not possible, the second rule applies.