Process Management
TM
Type B NG
RESIDENTIAL REGULATORS
2
B NG Regulators
Description
Type B NG Regulator - Main Characteristics
1 Stage Reduction
st
Outlet pressure accurate
even in the case of inlet
pressure variations
Factory Pre-set
Fixed setting
2 Stage Reduction
nd
Outlet pressure accurate
even in the case of
Flow variations
Special Internal and External Protection
for Underground Version
Easy to use
New Shut off Valve
Triple security
- Excess flow
- Low outlet pressure
- Low inlet pressure
(flow only)
Concealed Screws
Easy assembly and
disassembly
High Quality Pre-shaped Diaphragm
High precision
Internal Relief
Safety feature in case of
outlet overpressure
Various Springs
Adaptable to various fluids
(Natural Gas, LPG,
Manufactured Gas, etc.)
! LOW INTERMEDIATE PRESSURE
! VENT
! STRONGER
FITTINGS
! BODY RESISTANT TO
HIGHER PRESSURES
! ALL PARTS IN PERMANENT
MOVEMENT - NO STICKING
Resetting knob
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
4
B NG Regulators
Angle-Shape
Line-Shape
• Two compact installations
• Flow up to 10 m
3
/h (AC 5)
• Higher inlet pressure acceptance
• New marking, easier to read in the case of cabinet installation
Larger Application & Integration Range
Inlet Pressure
Pu: 0.5 to 5 bar
(0.1 to 6 bar on request)
Outlet Pressure
Pd: 9 to 50 mbar
Connection Sizes
Inlet: 3/4" sphero-conical or fl at - Others on request
Outlet: Flat joint with the following nuts:
1"1/4, 1"BS746, 1"ISO228, range for national meters,
others on request
Features
Technical Features
5
B NG Regulators
Body : Zinc/Aluminum Alloy
Casing : Zinc/Aluminum Alloy
Inlet Connection : Brass
Inlet Filter : Bronze or Plastic
Outlet Connection : Brass
1st Stage Plug : Nitrile
1st Stage Disc Orifi ce : Aluminum
2nd Stage Plug : Nitrile
2nd Stage Disc Orifi ce : Brass
Diaphragms : Nitrile
Vent Screen : Stainless Steel
Vent : Plastic (option)
Material
Functional Features
Temperature
TS: -20 / +60°C
(< -20°C under certain conditions)
Flow Capacity
Q: 0 to 10 m3/h(n)
Accuracy
AC: Up to 5
Lock-up Pressure Class
SG: Up to 20
Flow Range at 21 mbar
B NG Flow (m3/h(n))
B6 NG B10 NG
Pu (bar)
0.1 0.2 0.3 0.4 0.5 to 6 0.1 0.2 0.3 0.4 0.5 to 6
m3/h(n) 3.5 6 6.6 6.6 6 10 11 11
28
27
26
25
24
23
22
21
20
19
18
17
16
15
10 100 120 150Flow (%)
Pressure regulation zone
Shutoff zone
due to
excess flow
(According to
customers’
requirements)
Pd (mbar)
B6 NG
18
19
20
21
22
23
0 1 2 3 4 5 6 7 8 9 10
Outlet pressure for a 21 mbar setting
0.3 to 5 bar 0.2 bar 0.1 bar
m³/h(N) Natural Gas
Flow Curve indicating Shutoff Zone
B6 NG Flow Curves
B10 NG Flow Curves
B10 NG
17
18
19
20
21
22
23
24
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
m³/h(N) Natural Gas
0.4 to 5 bar 0.2 bar 0.1 bar0.3 bar
Outlet pressure for a 21 mbar setting
Process Management
TM
The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher is a mark owned by Fisher Controls, Inc., a
business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or
guarantees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifi cations of such
products at any time without notice.
Emerson Process Management does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson
Process Management product remains solely with the purchaser.
For further information visit www.emersonprocess.com/regulators
Natural Gas Technologies
Emerson Process Management
Regulator Technologies, Inc.
Francel SAS
Business Park - 3 avenue Victor Hugo
CS 80125
28008 Chartres Cedex, France
Tel: +33 (0)2 37 33 47 00
Fax: +33 (0)2 37 31 46 56
O.M.T. Offi cina Meccanica Tartarini s.r.l.
Via P. Fabbri, 1
I - 40013 Castel Maggiore (Bologna), Italy
Tel.: +39 - 0514190611
Fax: +39 - 0514190715
E-mail: info.tartarini@emerson.com
NCABNGEN©Emerson Process Management Regulator Technologies, Inc., 2012; All Rights Reserved
04/2012
Dimensions & Weight
94.9
176
119
162.9
103
64
101.3
Angle-Shape DimensionsLine-Shape Dimensions
980 to 1000 grams depending on version
Dimensions (mm)
Weight:
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