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Description
The RB 4700 and RB 4700 D is a pilot-operated regulator with an integrated optional safety shut-off
device. The balanced compensation system ensures constant outlet pressure when the upstream pres-
sure varies. This regulator has a very high operating performance.
Applications
It is designed for use in industrial and distribution applications: such as gas supply networks, district sta-
tions, heating plants and industries.
It can also be used for all installations with continuous consumption and rapid variations of flow-rate.
The accurate pressure control and fast response of the regulator are ensured by the perfect operating
performance of the pilot.
Technical features (CE-conform, DVGW-approval* see leaflet)
·
Inlet pressure Pu: (Pd + 0.5 bar) - 19.2 bar / 25 bar
·
Outlet pressure Pd: 5 mbar - 13 bar
·
Accuracy class 5 - 20 mbar: AC 20 / SG 50
20 - 50 mbar: AC 10 / SG 30
50 - 200 mbar: AC 5 / SG 10
0.2 - 13 bar: AC 2.5 / SG 10
AG 30 - AG 1
·
Temperature range -20°C to +60°C
·
Ambient temperature -30°C to +60°C
·
Acceptable gases Natural gas, town gas, propane, butane,
air, nitrogen or any non-corrosive gas
·
Installation Horizontal or vertical
·
Safety devices Optional built-in, safety shut-off valve:
Over-pressure shut-off (OPSO)
and low-pressure shut-off (LPSO)
·
Available Valve position indicator
Silent version / noise reduction
Connections
·
Sizes DN 25, DN 40, DN 50, DN80, DN100
·
Body lengths According to EN 334
·
Flanges Steel: PN16, PN20 (ANSI150), PN25, ANSI 300*
Cast iron: PN16, PN20 (ANSI150)
* with exception of DN 40
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