Pressure regulators with solenoid valve VAD, VAG, VAH,
VAV
5
20
10
50
0,5 1 2 5 10 20 50
2
0,3 100 200
100
200
500
Qn [m3/h]
?p [mbar]
= VAG, VAH, VAV, pG min < 5 mbar
VAD/G/H/V 115..B
VAD/G/H/V 125..A
VAD/G/H/V 240..A
VAD/G/H/V 350..A
VAD/G/H/V 120..A
Natural gas VAD, VAG, VAH, VAV
Type code
VAD Pressure regulator with solenoid valve
VAG Air/gas ratio control with solenoid valve
VAH Flow rate regulator with solenoid valve
VAV Variable air/gas ratio control with solenoid valve
1-3 Sizes
15–50 Inlet and outlet flange nominal size
R Rp internal thread
/N Quick opening, quick closing
W Mains voltage 230 V AC, 50/60 Hz
Q Mains voltage 120 V AC, 50/60 Hz
K Mains voltage 24 V DC
SR With position indicator and visual indicator, right
SL With position indicator and visual indicator, left
GR With position indicator for 24 V and visual indicator, right
GL With position indicator for 24 V and visual indicator, left
-25 Outlet pressure pd for VAD: 2.5–25 mbar
-50 Outlet pressure pd for VAD: 20–50 mbar
-100 Outlet pressure pd for VAD: 35–100 mbar
A Standard valve seat
B Reduced valve seat
E VAG: connection for air control pressure: compression fitting
K VAG, VAV: connection for air control pressure: plastic hose coupling
N VAG: zero governor
Class A pressure regulator to EN 88 with integrated Class A safety valve to EN 161 and
EN 13611 for safeguarding and control of the gas pressure in gas inlet and burner lines,
for gas and air, pu max. 500 mbar, with pilot lamp, IP 65, with M20 cable gland supplied
loose, EU certified, VAD, VAG: ANSI/CSA approved, VAD, VAG, VAV: AGA approved,
VAD, VAG, VAH: FM approved, VAD, VAG, VAV: UL listed, VAD, VAG, VAH, VAV: certified
for systems up to SIL 3 and PL e.
Designation Order no.
Pressure regulator, pd 35–100 mbar, for 230 V AC
VAD 115R/NW-100B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000262
VAD 120R/NW-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000266
VAD 125R/NW-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000265
VAD 240R/NW-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000267
VAD 350R/NW-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000270
Pressure regulator, pd 35–100 mbar, for 120 V AC
VAD 115R/NQ-100B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000279
VAD 120R/NQ-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000280
VAD 125R/NQ-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000281
VAD 240R/NQ-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000282
VAD 350R/NQ-100A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88000285
VAD, VAG, VAV
VAH
Technical
Information VAD,
VAG, VAV, VAH
3 Valves and butterfly valves
2-25