Product Overview

VG Series Gas Valves for Use with Electro-hydraulic Technical Instructions
Actuators SKP… Document Number 155-512P25
August 1, 2012
Siemens Building Technologies, Inc. Page 3
Accessories
Manual adjusting throttle attachment AGA61 permits VG… series valves to be used as
adjustable limiting orifice valves. Once adjusted, the AGA61 has a provision to be sealed
from tampering (See Table 3).
Adapter plate AGA60 permits VG… series valves to be used for modulating flow control
when fitted with an SQX… series modulating actuator (See Table 3).
NOTE: The VG… /SQX… valve/actuator combination is designed strictly for modulating
flow control and does not provide safety shut-off function.
Table 2. Product Numbers.
Product
Number
Size
Maximum
Operating
Pressure
psi
Close-
off
Pressure
psi
Capacity
CFH
Natural Gas
at
∆
P=1" W.C.
Number of
Test Points,
1/4" NPT
Valve Body Material
Product
Number
(with stroke
limiter)
Inlet
Outlet
VGG10.154U VGG10.1541U 1/2" NPT 20 75 327/242

2 2 Aluminum
VGG10.204U VGG10.2041U 3/4" NPT 20 75 614/442

2 2 Aluminum
VGG10.254U VGG10.2541U 1" NPT 20 75 914/686

2 2 Aluminum
VGG10.404U VGG10.4041U 1-1/2"
NPT
20 75 2,047/1,643

2 2 Aluminum
VGG10.504U VGG10.5041U 2" NPT 15 75 3,511 2 2 Aluminum
VGG10.654U VGG10.6541U 2-1/2" NPT 10 25 5,085 1 1 Cast Iron
VGG10.804U VGG10.8041U 3" NPT 10 25 6,158 1 1 Cast Iron
*VGD20.403U 1-1/2" 20 30 1,890
Two 1/4-inch and
one 1-inch port
between valves
Aluminum
*VGD20.503U 2" 15 30 2,300 Aluminum
*AGA41U
Single 1-1/2" connecting flange with 1/4-inch port for VGD 20.403U
Two (2) needed per
valve. Order separately
*AGA51U Single 2" connecting flange with 1/4-inch port for VGD 20.503U
VGD40.065U 2-1/2" NPT 10 75 3,880 1 1 Aluminum
VGD40.080U 3" NPT 10 75 5,370 1 1 Aluminum
VGD40.100U 4" Flanged 10 30 9,680 1 1 Aluminum
VGD40.150U 6" Flanged 10 30 17,490 1 1 Aluminum
* VGD20… double valves require 2 AGAxxU threaded flanges for installation.

VGG… valves, 1/2- through 1-1/2 inch have reduced flow when used with AGA66 (NEMA 4 kit). Capacities shown are without/with NEMA 4
kit (See Figure 4a).