Krom Schroder VGBF, VGBF 40R, VGBF 15R, VGBF 50F, VGBF 40F Operating Instructions Manual

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Operating instructions

Gas pressure regulators VGBF

Translation from the German

Gas pressure regulators VGBF............

Contents ..............................

Safety.................................

Checking the usage .....................

Intended use ...........................2

Type code .............................2

Part designations ........................2

Installation ............................

Installing the impulse line ................

Tightness test .........................

Changing the outlet pressure p

Checking the function ...................4

Replacing the spring ....................4

Maintenance ...........................5

Technical data .........................5

Designed lifetime ........................5

Logistics ..............................5

Certification ...........................6

Declaration of conformity ..................6

Eurasian Customs Union ..................6

Spring table............................6

Contact ...............................6

..........4

Safety

Please read and keep in a safe place

Please read through these instructions carefully before installing or operating. Following the installation, pass the instructions on to the operator. This unit must be installed and commissioned in accordance with the regulations and standards in force. These instructions can also be found at www.docuthek.com.

Explanation of symbols

• ,  ,  ,  ... = Action

▷ = Instruction

Liability

We will not be held liable for damage resulting from non-observance of the instructions and non-compliant use.

Safety instructions

Information that is relevant for safety is indicated in the instructions as follows:

DANGER

Indicates potentially fatal situations.

WARNING

Indicates possible danger to life and limb.

CAUTION

Indicates possible material damage.

All interventions may only be carried out by qualiﬁed gas technicians. Electrical interventions may only be carried out by qualiﬁed electricians.

Conversion, spare parts

All technical changes are prohibited. Only use OEM spare parts.

Changes to edition 0.4

The following chapters have been changed: – Checking the usage – Installation – Tightness test – Maintenance – Certiﬁcation

GB-1

Checking the usage

Vor dem Öffnen Feder entspannen!

Release spring before opening!

Avant d’ouvrir le dôme, détendre le ressort!

42 3

Intended use

The gas pressure regulator VGBF serves to maintain

a constant outlet pressure pd despite changing gas ﬂow rates and inlet pressures pu in gas pipelines.

This function is only guaranteed when used within

the speciﬁed ﬁelds of application – see page 5 (Technical data). Any other use is considered as non-compliant.

Type code

Code Description

VGBF Gas pressure regulator 5 – 50 Nominal size R F 05 0 40

-

-

Screw plug at the inlet and outlet

Medium: air and aggressive gases

(check compatibility with Viton)

Part designations

 Cover cap and adjusting screw  Breather screw  Impulse line connection (not on VGBF..05) 4 Outlet 5 Outlet (pd) measuring connection 6 Arrow of direction of ﬂow 7 Inlet (pu) measuring connection 8 Inlet 9 Type label

0

Damping valve for VGBF 40 – 100..40

Inlet pressure pu, outlet pressure pd and ambient temperature: see type label.

VGBF

CE: 0085AQ0973

Rp internal thread

Flange to ISO 7005

500 mbar

u max.

1 bar

u max.

4 bar

Screw plug at the inlet

u max.

Material for wetted parts:

Viton (without approval)

VGBF..FVGBF..R

566

Installation

CAUTION

Please observe the following to ensure that the gas pressure regulator is not damaged during the

installation: – Install the unit free of mechanical stress. – Do not clamp the unit in a vice or use it as a

lever. Risk of external leakage.

– Sealing material, cuttings and other impurities

must not be allowed to get into the regulator housing.

– The installation location must be dry. Do not

store or install the unit in the open air.

– Dropping the device can cause permanent dam-

age. In this event, replace the entire device and associated modules before use.

– Installation in the horizontal position, never up-

side down. VGBF 15 – 50 can also be installed in the vertical position.

▷ The outlet pressure pd is set at the factory with

the spring dome pointing vertically upwards.

VGBF 15 – 50: if installed with the spring dome

in the horizontal position, check and adjust the outlet pressure pd, see page 4 (Changing the outlet pressure pd).

▷

The housing must not touch any surrounding walls.

Minimum clearance 20 mm. Ensure that there is sufﬁcient space for installation and adjustment.

 Install a ﬁlter upstream of the unit, in order to

protect it against impurities in the pipeline.

VGBF..F

VGBF..R

42 3

GB-2

Installing the impulse line

31 2

VGBF 40 – 50..05 for 500 mbar

▷ No external impulse line required. VGBF..05 fea-

tures an internal feedback function.

VGBF 40 – 00..40 for 4 bar

▷ In order to avoid possible oscillations, a damp-

ing valve should be ﬁtted. The damping valve is secured to the spring dome with an adhesive strip on delivery.

▷ Impulse line: 12 × 1.5 mm.

VGBF 40 – 00

CAUTION

– First apply the inlet pressure pu – then the outlet

pressure pd.

– The inlet pressure pu must always be equal to

or higher than the outlet pressure pd.

– In the event of non-compliance with the se-

quence, the inlet pressure compensation dia phragm will reverse.

Push union nut and compression ﬁtting onto the impulse line.

VGBF 5 – 00..0 for  bar and VGBF 5 – 00..40 for 4 bar 6 Install the impulse line and seal with an approved

sealing material.

VGBF 5 – 5R

Rp 1/

5xDN

1110

VGBF 40 – 50

Rp 3/

5xDN

Tightness test

 Relieve the outlet pressure pd.

WARNING

 Relieve the inlet pressure pu.

If gas-ﬁlled spaces have been opened, check them for tightness.

 Block the pipeline at the inlet and outlet.  Slowly apply inlet pressure p

(pu ≤ 1.5 × p

 Slowly apply outlet pressure p

≤ 1.5 × pd, see type table)

u max.

, see type label)

GB-3

Changing the outlet pressure pd

▷ The outlet pressure pd is set at the factory with

the spring dome pointing vertically upwards. If the VGBF is installed with the spring dome in the horizontal position, check and adjust the outlet pressure pd.

▷ Use the test points on the unit only for measure-

ments of zero ﬂow or very slight ﬂow.

6 mm

5 Clearly mark the adjusted value of the outlet

pressure pd on the type label.

Checking the function

 Request different outputs on the burner in order

to change the ﬂow rate.

 Close the manual valve at the inlet a little in order

to change the inlet pressure pu.

▷ Despite changing ﬂow rates and inlet pressures

pu (within the capacity range of the VGBF), the outlet pressure pd must remain constant (±10–15%).

 Reduce the capacity to low-ﬁre rate and close

the valve downstream of the VGBF.

▷

Approx. 30 seconds after the valve has been closed, the outlet pressure pd should not in-

crease signiﬁcantly. Check the tightness of the VGBF during operation to detect possible leaks due to hardened rubber materials.

WARNING

Risk of injury!

– The taut spring can pop out when opening the

spring dome. Therefore, decompress the spring as far as it will go before opening. Then turn back 5 × to relax the spring counter bearing.

6 mm

7 86

VGBF 5 – 50 9 Turn down the spring counter bearing slightly.

10 11

 Ensure that the guide grooves and bars engage

in each other.

VGBF 65 – 50 9 Turn down the spring counter bearing slightly.

10 11

 Ensure that the guide groove and the cylinder

engage in each other.

VGBF 5 – 50

53 4

1413

6 mm

6 If a leak is found, replace the rubber materials.

▷ Selecting spare parts:

see www.adlatus.org, Part Detective.

7 Then check for tightness once again.

Replacing the spring

 Choose a spring according to the outlet pressure

range (see page 6 (Spring table)).  Remove the cover cap.

5 Screw on cover cap. 6 After inserting the spring, take the spring’s label

from the packaging and stick it below the type label on the pressure regulator.

7 Clearly mark the adjusted value of the outlet

pressure pd on the type label.

GB-4

Maintenance

In order to ensure smooth operation, check the tightness and function of the gas pressure regulator every year, or every six months if operated with biogas, see page 4 (Checking the function) and page 3 (Tightness test).

▷

Spare parts, see www.adlatus.org, PartDetective.

▷ If gas-ﬁlled space has been opened, check the

tightness and function, see page 3 (Tightness test) and page 4 (Checking the function).

Technical data

Gas type: natural gas, town gas, LPG (gaseous) and biogas, VGBF..V for air. Outlet pressure ranges:

The outlet pressure range is achieved through the

use of different springs (see page 6 (Spring table)). Rp 1/4 connection for test points or even for a pilot gas line: at the inlet: VGBF 15 and 25, at inlet and outlet: VGBF 40 – 150. Ambient temperature: -15 to +60°C, VGBF..V: 0 to 60°C. No condensation permitted. Long-term use in the upper ambient temperature range accelerates the ageing of the elastomer materials and reduces the service life (please contact manufacturer). Storage temperature: -15 to +40°C, VGBF..V: 0 to 40°C. Strainers that are possibly ﬁtted serve as ﬂow conditioners. Housing: aluminium, diaphragms: NBR or Viton, valve seat: aluminium, valve stem: aluminium, valve disc: vulcanized NBR or Viton seal. Internal thread: Rp to ISO 7-1, ﬂanged connection: PN 16 to ISO 7005, DN 15 – 50 with NPT thread, DN 50 – 100 available with ANSI ﬂange. Impulse line connections: NPT. Weight [kg]:

VGBF..40

Max. inlet pressure p Feedback via impulse line:

u max.

: 4 bar.

Rp 1/4 connection for DN 15 and 25, Rp 3/8 connection for DN 40 – 100. EN 334, Accuracy Class AC 10, Lock up pressure class SG 30.

VGBF..05

Max. inlet pressure p Internal feedback.

u max.

: 500 mbar.

EN 88, Class A, Group 2.

Designed lifetime

This information on the designed lifetime is based on

using the product in accordance with these operating instructions. Once the designed lifetime has been reached, safety-relevant products must be replaced. Designed lifetime (based on date of manufacture) in

accordance with EN 13611 and EN 88 for VGBF: 15 years. You can ﬁnd further explanations in the applicable

rules and regulations and on the afecor website

(www.afecor.org). This procedure applies to heating systems. For

thermoprocessing equipment, observe local regu-

lations.

Logistics

Transport

Protect the unit from external forces (blows, shocks,

vibration). On receipt of the product, check that the

delivery is complete (see page 2 (Part designa-

tions)). Report any transport damage immediately.

Storage

Store the product in a dry and clean place.

Storage temperature: see page 5 (Technical data).

Storage time: max. 6 months before using for the

ﬁrst time.

Packaging

The packaging material is to be disposed of in ac-

cordance with local regulations.

Disposal

Components are to be disposed of separately in

accordance with local regulations.

Type Weight Type Weight VGBF 15R 0.9 VGBF 65F 12.0 VGBF 25R 1.9 VGBF 80F 16.1 VGBF 40R 2.9 VGBF 100F 26.0 VGBF 40F 4.8 VGBF 150F 46.5 VGBF 50F 7.7

VGBF..0

Max. inlet pressure p Feedback via impulse line:

u max.

: 1 bar.

Rp 1/4 connection for DN 15 and 25, Rp 3/8 connection for DN 40 – 150. EN 334, Accuracy Class AC 10, Lock up pressure class SG 30.

GB-5

Certiﬁcation

Declaration of conformity

We, the manufacturer, hereby declare that the product VGBF with product ID No. CE-0085AQ0973 complies with the requirements of the listed Directives and Standards. VGBF 15 to VGBF 150:

lance procedure pursuant to Directive 2009/142/EC AnnexII paragraph 3 (valid until 20 April 2018) and to Regulation (EU) 2016/426 Annex III paragraph3 (valid from 21 April 2018) and for VGBF 100F40 according to annex III, module D1 of Directive 97/23/EC.

This declaration of conformity is issued under the

sole responsibility of the manufacturer. Elster GmbH

Directive:

– 2009/142/EC – GAD (valid until 20 April 2018)

Regulation:

Scan of the Declaration of conformity (D, GB) – see www.docuthek.com

– (EU) 2016/426 – GAR (valid from 21 April 2018)

Standards:

– DIN EN 88-1:2011

Eurasian Customs Union

– DIN EN 88-2:2008 – DIN EN 334:2009

VGBF 100F40: Directive:

– 97/23/EC

The relevant product corresponds to the tested type

The product VGBF meets the technical speciﬁcations

of the Eurasian Customs Union.

sample. The production is subject to the surveil-

Spring table

Outlet pressure pd [mbar]

VGBF 15 VGBF 25 VGBF 40 VGBF 50 5 – 12.5 75421911 75421961 75421961 75422031 – 10 – 30** 75421921 75421971 75421971 75422041 red 25 – 45 75421931 75421980 75421980 75422051 yellow 40 – 60 75421941 75421990 75421990 75422061 green 55 – 75 75421951 75422000 75422000 75422071 blue 70 – 90 75442046 75422010 75422010 75422081 black 85 – 105 75442047 75422020 75422020 75422091 white 100 – 160 75442048 75438978 75438978 75438981 black/red 150 – 230 75442049 75438979 75438979 75438982 black/yellow 220 – 350 75442050 75438980 75438980 75438983* black/green

Outlet pressure pd [mbar]

VGBF 65 VGBF 80 VGBF 100 VGBF 150 5 – 12.5 75426160 75426230 75426310 75426450 – 10 – 30** 75426170 75426240 75426320 75426460 red 25 – 45 75426180 75426250 75426330 75426470 yellow 40 – 60 75426190 75426260 75426340 75426480 green 55 – 75 75426200 75426270 75426350 75426490 blue 70 – 90 75426210 75426280 75426360 75426500 black 85 – 105 75426220 75426290 75426370 75426510 white 100 – 160 75446329 75438984 75438987 75438990 black/red 150 – 230 – 75438985 75438988 – black/yellow 220 – 350 – 75428986 75438989 – black/green

* Spring set comprising two springs. ** Standard spring

Mark the new outlet pressure on the type label – adhesive label supplied.

Order No.

Marking

Contact

If you have any technical questions, please contact your local branch ofﬁce/agent. The addresses are available on the Internet or from ElsterGmbH.

We reserve the right to make technical modiﬁcations in the interests of progress.

Strotheweg 1, D-49504 Lotte (Büren)

Elster GmbH

Tel. +49 541 1214-0

Fax +49 541 1214-370

hts.lotte@honeywell.com, www.kromschroeder.com

GB-6

Krom Schroder VGBF, VGBF 40R, VGBF 15R, VGBF 50F, VGBF 40F Operating Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Gas pressure regulators VGBF

Contents

Safety

Checking the usage

Intended use

Type code

Part designations

Installation

Installing the impulse line

Tightness test

Changing the outlet pressure pd

Checking the function

Replacing the spring

Maintenance

Technical data

Designed lifetime

Logistics

Declaration of conformity

Eurasian Customs Union

Spring table

Contact