3
B NG Regulators
Description
MAIN SAFETY FEATURES
• Downstream equipment protection
• Stronger fi ttings permitting easy and safe
installation
• Body withstands higher pressures
(12.5 bar for 1
st
stage reduction and 5 bar
for 2nd stage reduction) giving exceptional
resistance in the case of upstream
overpressure
• All parts are in permanent movement,
therefore no risk of sticking, to assure
immediate response and protection of
the downstream equipment
The new Type B NG residential regulator is a direct-action, spring-loaded regulator, with high
performance and reinforced safety features.
A shut off valve cuts off the fl ow in the case of excessive fl ow, or when the outlet pressure drops below
the set point (high gas demand or broken line), or in the case of inlet pressure dropping below the set
point (network pressure drops or pipe damage).
The regulator can be manually reset after the safety function trips.
The regulator is factory preset.
The new B6 NG is interchangeable with the current angle-shaped B6 N (same key dimensions).
PERFORMANCE FEATURES
• 2 stages of reduction produce a constant
outlet pressure, which is insensitive to
changes in inlet pressure
• Nominal fl ow up to 10 m3/h(n) with an
accuracy of AC 5
• Inlet pressure range 0.5 to 5 bar, possibility
of 0.1 to 6 bar under certain conditions
• Outlet pressures 21, 27, 37 mbar
(standard), others (9 to 50 mbar) available
upon request
• The B NG is equipped with an internal
relief valve
• A fi lter protects the regulator on the
inlet side