Emerson Fisher Type B NG Instruction Manual

Instruction Manual

Patnáctka

D103697X012

June 2019

le bouton vert

pour mise en

service

Type B NG

Appuyez sur

V

/Rok

/

Conform PED art 3.3
Conforme DESP art 3.3

DESCRIPTION

TYPE B NG REGULATOR

The Type B NG is a two-stage pressure reducing
regulator with an automatic safety device to
avoid outlet over-pressure (relief valve venting to

atmosphere) or stopping the gas ow in the event

of an abnormal drop in inlet or outlet pressure or

an excess ow condition.

Rearming is manual by using the push-button and
depending on models (B6 version only) a valve may

be associated. A removable vent lter is situated

in the inlet connection, and a vent screen (see
schematic, item V).
The underground model is treated for anti-corrosion
and is painted.

Maximum allowable pressure: 5 bar

Operating temperature: -20 / 60°C

INSTALLATION

CAUTION

• To be used with clean, dry and non-corrosive gas.

• All regulators, except for underground version,
must be protected from direct contact of water
and corrosive atmosphere due to construction
materials base with zinc, copper and aluminium
(cabinet installation recommended).

• Recommended installation positions : inlet and/
or outlet in vertical position.

• To avoid: vent facing upwards, without protector
or connector, in humid conditions (risk of water
penetration due to rain or condensation).

Gas Type Density

3

Manufactured gas (n)m

• Butane air

• Propane air

Natural gas (n)m

• Group L

• Group H

LP-gas kg/h

• Propane 1.56 2.017 37 7.2 12

/h

3

/h

1.20

1.15

0.64

0.61

Before connecting :

• Do not weld the inlet and outlet connections with
the regulator in place.

• Remove the protective capsules from the inlet
and outlet connections.

• Ensure that the pipeline is perfectly clean.

• Place the O-ring(s), (according to model)
greasing is recommended.

Connection

• Respect the gas ow direction indicated on the

regulator body.

• Respect the tightening torques by using a

dynamometric wrench (inlet with tight shuto󰀨

metal = 40 N•m, others according to O-ring used).

!

WARNING

Do not re-orientate the regulator after tightening
connections, under no circumstances should
the regulator be put under any geometrical or
dimensional consecutive force between inlet
and outlet sides.

When connecting the vent (residential areas,
underground) the diameter used should not be
inferior to 10 mm and should not be obstructed.

COMMISSIONING OR REARMING

Close the downstream valve (if existent). Open the
upstream valve. Press on the green button for a
few seconds, then release. Open the downstream
valve (if existent).

Volume

Weight

kg/m

1.552

1.487

0.827

0.789

Pressure

Setpoint

3

11
11

27
21

Nominal Flow

B6 B10

4
4

6
6

1

7
7

10
10