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�465info3@de.ebmpapst.com

www. ebmpapst.com