User guide

16-8
Filling Valves and Refilling Units
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The VF04 filling valve permits simple and safe filling or refilling of closed heating systems. A pressure
reducing valve, a check valve and a shut-off facility are combined into one unit. The pressure gauge
connection enables fitting of a pressure gauge (accessory) to provide accurate checking of system
pressure after filling.
For closed heating systems to DIN 4751:
• Onto a heating circuit distributor manifold,
• in combination with a water supply distributor manifold,
• on a heating boiler via a fill hose, in the supply to or directly onto a heating boiler,
• as a filling set for trouble-free and safe initial filling of a system.
Accessories
Filling valve for closed heating systems, VF04
Approvals DIN/DVGW approved check valve
Materials Brass housing dezincification resistant, high grade synthetic
material spring bonnet, fibre-reinforced NBR diaphragm, NBR
seals
Media water
Max. media temperature 70
o
C
Static pressure PN16
Pressure setpoint range 1,5 ... 6 bar
Product description With internal and external threads
Type
VF04-1/2E
Pressure gauge, range 0-4 bar
MF126-A4
Hose connector with union nut and gasket
0903454
Connection set with threaded connector
VST06-1/2A
Pressure gauge, range 0-10 bar
M39K-A10