Danfoss VMA Data sheet
Data sheet
2 - way seated valve (PN 16)
VMA - external thread
Description
Ordering
Example:
2-way seated valve, DN 15; kVS 1,6;
PN 16; t
- 1× VMA DN 15 valve
Option:
- 1× Weld-on tailpieces
130 °C; ext. thread
max
Code No: 065F2034
Code No: 003H6908
It can be combined with:
- ABV thermohydraulic actuators and
- VMA DN 15 can additionally be combined
with self-acting thermostatic actuators RAVI,
RAVK and RAVV
All sizes have external thread for flat packing
(DIN 7603).
Main data:
• DN15
• kVS 0,25 - 2,5 m3/h
• PN16
• Temperature:
- Circulation water / glycolic water up to 30 %:
2 … 130 °C
VMA is 2-way seated valve primarily for use in
district heating systems.
• Connections:
- Ext. thread (weld-on and thread tailpieces)
VMA valve
Picture
DN k
(mm) (m3/h)
15
VS
0,25
0,4 065F2031
0,63 065F2032
1,0 065F2033
1,6 065F2034
2,5 065F2035
Cylindrical external thread
acc. to ISO 228/1
Connec tion Code No.
G ¾ A
Accessories
Picture Type designations DN Connec tion Code No.
Weld-on tailpieces 15 - 003H6908
External thread tailpieces 15
Conical ex t. thread acc.
to EN 10226-1
R ½ 003H6902
065F2030
DEN-SMT/SI
Service kits
Picture Type designations Code No.
1)
The produc ts can only be ordered in mult iple packing containing 10 pieces ea ch
VD.52. J8.02 © Danfoss 12/2011
Valve stuffing box 065F0006
1)
1
Data sheet 2 - way seated valve VMA (PN 16)
Technical data
Valve
Nomina l diameter DN 15
k
value m3/h 0,25 0,4 0,63 1,0 1,6 2,5
VS
Stroke mm 3
Control ratio 1:50
Control characteristic Approximately linear
Cavitation factor z ≥ 0.5
Leakage acc. to standard IEC 534 0,05 %
Nominal pressure PN 16
Medium Circulation water / glycolic water up to 30 %
Medium pH Min. 7, max. 10
Medium temperature
Connections
Materi als
Valve body Dezincing free brass
Valve seat Stainless steel 18/8, mat. No. 1.4305, DIN 17440, SS 14.23.46
Valve cone EPDM
Spindle Dezincing free brass
Valve insert Dezincing free brass
Valve stuffing box Dezincing free brass
o
C 2 … 130
valve Ext. thread
tailpieces Weld-on and external thread
Max. differential pressure
Nomina l diameter DN 15
k
value m3/h 0,25 0,4 0,63 1,0 1,6 2,5
VS
RAVI / RAVV
RAVK 3,0 3,0 1,5 1,5 1,5 0,5
ABV 7,0 7,0 7,0 7,0 7,0 4,0
bar
5,0 5,0 2,0 2,0 2,0 1,0
Application principle
Direct-connected heating system
2
VD.52. J8.02 © Danfoss 12/2011
DEN-SMT/SI
Loading...