1 … 6
GasBlocMultifunctional gas controlCombined regulator and safety shut�off valvesIntegrated gas�air systemGB�GD 057 D01
Zero pressure regulatorGB�ND 057 D01
Technical descriptionMultifunctional gas control valve according to EN 126 for fully automatic operation:
- Pneumatic integrated system comprising air signal or zero pressure mode
- Offset correction of gas�air ratio at servo regulator
- Limit of maximum flow through restrictor- Input pressures up to max. 65 mbar
(6.5 kPa)- Different variants according to application
Prin
ted
in G
erm
any
· Edi
tion
01
ApplicationFor pre�mix burners and forced�draft burners. Suitable for gases according to EN 437 and other gaseous inert media.
ApprovalsEU type test approval according to EU Gas Appliance Directive.
GB�GD 057 D01 CE�0085 CM 0036GB�ND 057 D01 CE�0085 CM 0036
CSA 240 9198
Approvals in other important gas�consuming countries.
2 … 6
Combinations Multifunctional gas control valve GB-GD 057 D01 and GB-ND 057 D01
Products
GB-GD 057 D01
GB-ND 057 D01
Specification
Serv
o�pr
essu
re
cont
rolle
r
Pressure regulatorThe pressure regulator includes a servo regulator to regulate pressure fluctuations in the mains supply. This ensures a precise volume flow and constant injector pressure.
In the combined gas�air valve GB�GD 055 the injector pressure follows the signal pressure applied to the servo diaphragm at a ratio of 1:1.The zero pressure valve GB�ND regulates the injector pressure at the valve outlet dependent on the vacuum generated, towards zero.
Solenoid safety valvesSolenoid safety valves according to EN 161, Class B. DC coils are protected against voltage transients.
Description of main components
Type key of GasBloc
A FilterB Automatic shut�off valvesC Pressure regulatorD Servo�pressure regulatorE Start gas settingp1 Test nipple, inletp2 Test nipple, outlet
Com
bine
d ga
s�ai
r re
gula
tor 1
:1
Zero
pre
ssur
e re
gula
tor
Offs
et c
orre
ctio
n
MPA
109
x
Block diagram
standard optional not available
Gas train schematic diagram1 = two class B solenoid valves with pressure regulator2 = two class B solenoid valves without pressure regulator
Design type (generation) D
Construction size, nominal diameter05 = pmax. = 65 mbar
3 = Rp 1/4 5 = Rp 1/2 7 = Rp 3/4
Opening behaviour + main volume restrictorwithout = Fast-opening, fast-closing-L = Slow-opening-E = Adjustable start gas-P = Pilotgas connection-G = Gas-air ratio-D = Main flow setting-N = Zero-Governor-M = Electrical modulating type-W = WhirlWind version-Z = Two stage
GasBloc
S = Series (type-independent)
Outlet pressure Inlet pressure0 = 0 mbar up to 65 mbar2 = 1,5 - 20 mbar up to 65 mbar4 = 3 - 40 mbar up to 65 mbar
Control of V1 and V20 = common2 = separated
Valve design 0 = Double safety valve1 = Single safety valve, right angle2 = Single safety valve, straight
GB- XXXXX XXX DXX SXX
Star
t gas
set
ting
B
B
B
B
Max
imum
re
stric
tor
Gas
pres
sure
sw
itch
GB-GD
GB-ND
V1V1 V2
C
PL
B B D
E
V1 V2
C
Pamb
B B D
EP2
P1A
P1A
Solenoid safety valve modesSolenoid safety valves V1 and V2 can be activated and opened either together or separately.
FilterFine�meshed strainer to protect fitting.
PilotgasPilotgas connection between solenoid safety valves V1 and V2.
Gas pressure switch Optional equipmentMonitors gas pressure on the inlet side for gas leakage protection. The pressure switch can be pre�adjusted and sealed to customer specifications.
Pressure instrument glandsOn inlet and outlet sides
Line
soc
ket
Valv
e cl
ass
(a
ccor
ding
to
EN 1
61) V
1
Valv
e cl
ass
(a
ccor
ding
to
EN 1
61) V
2
3 … 6
Functional diagram GB-GD 057 D01 / GB-ND 057 D01 Legend
1 Fine�meshed strainer 2 Housing 3 Solenoid safety valves V1 4 Closing spring 5 Plunger V1 6 Test nipple 7 Solenoid V1 8 Solenoid safety valves V2 9 Main flow restrictor 10 Solenoid V2 11 Working diaphragm 12 Return spring 13 Operating valve 14 Electrical connection 15 Servo�pressure regulator 16 Connection for signal (only GB�GD...)
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Adjustment instructions – offset and gas-air ratio:
• Offset – by using setting screw on servo regulator
• Maximum flow – by using flow�restriction screw (see drawing adjusting devices on next page)
Adjustment range:• GB-ND (zero-governor)
offset correction: ± 20 Pa (± 0,2 mbar)
Adjustment range: • GB-GD (gas-air ratio)
offset correction: ± 20 Pa (± 0,2 mbar)
PL
P2
V = 0,45
PL
P2
V = 1
Offset correctionadjustment rangeGB-GD
Offset correction Main flow restrictor
4 … 6
Dimensions [mm] Electrical connection
Adjusting devices
StandardBox with cable connection IP 40Molex Crimp System 3001
Volume flow pressure difference characteristicGB-(LEP) 057 D01 – pneumatic according to DIN EN 126
Inlet pressure range (mbar)
Solenoid coilsPressure regulator offset adjustment
Pressure test nipple P2
Maximum restrictor
Pressure test nipple P1
Permissible deviationPressure regulator class C - 2nd gas family
p2 + 10 % - 15 % according to EN 126
PNOM.
2025
2nd gas family
Natural gas-H-ENatural gas-L
PMAX.
2530
PMIN.
1720
natural gas
5828
111
ø9
40,5
ø55
36
36
82
4 x M5 - 9 deep
Rp 3/4 ISO 7/1
105
5 … 6
Volume flow pressure difference characteristicGB-..... 057 D01 – pneumatic according to DIN EN 126
Inlet pressure range (mbar)
Permissible deviationPressure regulator class C - 3rd gas family
p2 ±10 % according to EN 126
PNOM.
37
3rd gas family
Propane
PMAX.
45
PMIN.
25
2 x B-Valve
2 x B-Valve
Volume flow pressure difference characteristicGB-..... 057 D01 – pneumatic according to DIN EN 126
Inlet pressure range (mbar)
Permissible deviationPressure regulator class C - 3rd gas family
p2 ±10 % according to EN 126
PNOM.
50
3rd gas family
Butane/Propane
PMAX.
57,5
PMIN.
42,5
Volume flow pressure difference characteristicGB-..... 057 D01 – pneumatic according to DIN EN 126
Vn [m3/h] Erdgas / Natural gas / Gaz Naturel / Gas metano dv = 0,65°
∆p [m
bar]
2
3
4
5
6
1
8
10
20
30
40
60
80
100
50
2 3 4 5 61 7 8 9 10 20
Conditions: + 15° C/59 °F, p = 1013 mbar
0,1 0,2 0,3 0,4 0,5 0,6 0,8
2 3 4 5 61 7 8 9 10 20 300,2 0,3 0,4 0,5 0,6 0,8
Vn [m3/h] Luft / Air / Aria dv = 1,00°
recommended work range
6 … 6
GasBlocMultifunctional gas controlCombined regulator and safety shut�off valves
Integrated gas�air systemGB�GD 057 D01
Zero pressure regulatorGB�ND 057 D01
Nominal diameterGas connectionFlange with tube threadMax. inlet pressureNominal flow GB�GD 055
Nominal flow GB�ND 055
Ambient temperature
Automatic shut�off valvesGroupPressure regulatorProportional adjustment range VMinimum signal pressureOffset correctionDegree of protectionOpening time
Closing timeSwitch on durationVoltage / frequency
Load of coil (24 V, 230 V)Electrical connection
Optional equipment
Installation position
Specifications DN 15Rp 3/4 ISO 7/1Rp 3/4 ISO 7/1 ID65 mbar (6.5 kPa)5.3 m3/h (air) at ∆p 5 mbar (0.5 kPa), regulated15.4 m3/h (air) at ∆p 30 mbar (3.0 kPa), regulated-15 °C to +70 °C0 °C to 70 °C at LPGClass B according to EN 1262Class CV = pgas- pair = 0,45-10.3 mbar (0.03 kPa) at ∆pOffset = 0 Pa± 0.2 mbar (0.02 kPa)IP 40Fast�opening < 1 sSlow�opening < 10 s< 1 s100 %~(AC) 50 - 60 Hz 24 V +10 % – 15 % ~(AC) 50 - 60 Hz 230 V +10 % – 15 % 2 x 12,5 VAMolex System connection coil orOption: Connection box with integrated cable Electrical connections in Rast 5Automatic burner control MPA 109xGas pressure switch GW A5Solenoid at any position between vertical and horizontal axis.
We reserve the right to make any changes in the interest of technical progress.
ebm-papst Landshut GmbHHofmark�Aich�Straße 25D�84030 LandshutPhone +49 871 707�0Fax +49 871 707�[email protected]
www. ebmpapst.com