Product Overview

Data sheet STV Series
Balancing Valves
VDDNB122 © Danfoss 05/08
Dimensions and
Construction:
STV / STVL
Size
A
in (mm)
B
in (mm)
C
(2)
in (mm)
1/2” 3.4 (86.4) 3.7 (93.9) 1.6 (40.6)
3/4” 3.5 (88.9) 3.7 (93.9) 1.7 (43.2)
1” 4.0 (104.1) 3.8 (96.5) 1.7 (43.2)
1-1/4” 4.7 (119.4) 3.8 (96.5) 1.9 (45.7)
1-1/2” 5.2 (132.1) 4.3 (109.2) 1.9 (45.7)
2”
6.1/6.5
(153.9/164.1)
(1)
4.4 (111.7) 2.1 (53.1)
(1)
STVL F.Solder version,
(2)
P/T Tap offset
Body and parts
in contact
with liquid
Dezincification
resistant brass
Gaskets: EPDM
Seat Seal: EPDM
Handwheel:
Polyamide
Plastic
STV Valve STVL Valve
STVA / STVC
STVA
Size L1
in (mm)
H1
in (mm)
2-1/2” 11.4 (290.1) 8.9 (227.1)
3” 12.2 (309.9) 9.5 (241.3)
4” 13.8 (350.0) 10.2 (259.1)
5” 15.8 (400.1) 11.7 (297.9)
6” 18.9 (480.1) 12.1 (306.1)
STVC
8” 23.6 (599.4) 20.1 (510.5)
10” 28.7 (729.9) 20.9 (530.9)
12” 33.5 (850.9) 24.0 (609.6)
STVA / STVC
Body and bonnet: Cast iron
Seat seal: PTFE
Gaskets: EPDM
Other metal parts: Brass
Hand wheel,
STV / STVL / STVA
Ploymide
Plastic
A
C
B
A
C
B
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