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14
These gas valves allow flow modulation with the possibility to set both minimum flow, by regulating
the initial angle of the motor, and maximum flow by adjusting the regulator screw at the bottom of
the valve.
These valves are suitable for gaseous fluids in gas power burners, atmospheric gas boilers,
melting furnaces, incinerators and other gas consuming appliances. The VT5000 series throttle
valves are available in two versions: model VT5025 (with 1/2, 3/4" and 1" flanges) and model
VT5050 (with 1 1/4", 1 1/2" and 2" flanges). There is also one model with factory mounted actuator
(MT4000): VT4025A.
Factory mounted actuator MT4000
With mounting bracket for actuator
Flange kits for VT series throttle valves. Comes with 2x flanges, gaskets and,
screws for mounting.
Throttle gas valve VT5000 Series
VT4025A1009
Gas valve type Actuator operated throttle valve for flow control
Media Air, natural gas, manufactured gases
Materials Aluminium alloy die-cast. Viton O-ring seals. Valve dish: Stainless
steel.
Approvals CE
Pipe connection Threaded flanges
Threads type BSP
Max. operating pressure 360 mbar
Ambient temperature -15 ... 60 oC
Additional description • Uses Honeywell KTVT-series flanges for direct mounting in a
pipe train or can be attached directly to the in- or outlet of
VQ400-series dual valves or VR400-series combi valves for
special applications.
• For selection of suitable actuator, refer to MT4000, MF4000,
LKS160 or Modutrol IV chapters.
Valve
dimension
Maximum
opening time
Maximum
closing time
Protection
class
Electrical
connection
Comment Type
s s
DN25 30 30 IP40 conduit Incl.
MT4000A1027
VT4025A1009
VT50XXM
Valve
dimension
Maximum
opening time
Maximum
closing time
Protection
class
Electrical
connection
Comment Type
s s
DN25 – – – – For Modutrol IV VT5025M1005
DN25 – – – – For MF4000 VT5025M1013
DN25 – – – – For MT4000 VT5025M1021
DN25 – – – – For LKS160 VT5025M2003
DN50 – – – – For Modutrol IV VT5050M1003
DN50 – – – – For MF4000 VT5050M1011
DN50 – – – – For MT4000 VT5050M1029
DN50 – – – – For LKS160 VT5050M2001