22
TM
Introduction
The technical and operational features of
the M Series, spring-loaded regulators,
make them ideal for applications
requiring sudden changes in capacity or
where gas shutoff is solenoid-controlled
as with domestic or industrial burners.
The MF and MN MR Series are in
conformity with the Pressure Equipment
Directive PED 97/23/EC and are classified
under Category IV maximum.
Available Configurations
MN Series (Widened Outlet Flanges)
Types MN, MN-AP, MN-APA,
and MN‑PST:
Regulator
Types MBN, MBN-AP, MBN-APA,
and MBN-PST:
Regulator + Shutoff
TypesMBN-M, MBN-M-AP, MBN‑M‑APA,
andMBN-M-PST:
Monitor + Shutoff
MF Series (Same Inlet/Outlet Flanges)
Types MF, MF-AP, MF-APA, andMF‑PST:
Regulator
Types MBF, MBF-AP, MBF-APA, and
MBF‑PST:
Regulator + Shutoff
Types MBF-M, MBF-M-AP, MBF-M-APA,
and MBF-M-PST:
Monitor + Shutoff
All MN and MF type regulators, or
regulators + shutoff, are available with or
without type SR Silencer.
Body Sizes
MN Series:
DN 25 x 65, 40 x 80, 50 x 100, 65 x 100,
80 x 150, and 100 x 200 (NPS 1 x 2-1/2,
1-1/2 x 3, 2 x 4, 2-1/2 x 4, 3 x 6, and 4 x 8)
MF Series:
DN 25, 40, 50, 80, and 100
(NPS 1, 1-1/2, 2, 3, and 4)
End Connection Style
PN 16 / CL150
Inlet Pressure
Body Allowable Pressure: Up to 20 bar
Actuator Allowable Pressure: 4 bar
MaximumOperating Pressure: 3 bar
Permissible Inlet Pressure:
Standard Version
DN 25 to 50 (NPS 1 to 2): 10 bar
DN 65 to 100 (NPS 2-1/2 to 4): 5 bar
PST, AP and APA Versions: 19.6 bar
Outlet Pressure Range
Standard Version: 10 to 500 mbar
PST Version: 0.2 to 0.5 bar
AP Version: 0.5 to 1 bar
APA Version: 1 to 3 bar
Accuracy Class
Up to ±5%
Lock-up Pressure Class
Up to 10%
Class of Lock-up Pressure Zone
Up to 10%
Built-in Slam-Shut Valve
Independent Pneumatic Control
Accuracy Group: ±5%
Response Time: <1 s
Temperature Capabilities
Working: -10° to 60°C
Low temperature version available on
request.
Approximate Weights
31 to 140 kg
For full details consult the documenta-
tion available on our website:
• Counterbalanced Shutter
• Overpressure and Under-
pressure Shutoff Valve
• Wide Pressure Regulation
Range
• Manual Reset
Features
MF and MN Series
Spring-Loaded Pressure Reducing Regulators
MBN
MF
