GESTRA BK 15 Bedienungsanleitung

BK 15

(DN40, DN 50)

Steam Trap

English

Original Installation Instructions

810682-03

Contents

Important Notes

Usage for the intended purpose ......................................................................... 4

Safety note ....................................................................................................... 4

Danger............................................................................................................. 4

Attention .......................................................................................................... 4

Application of European Directives ..................................................................... 4

Notes on the Declaration of Conformity/Manufacturer's Declaration ..................... 5

Explanatory Notes

Scope of supply ........................................................................................................... 6

Description .................................................................................................................. 6

Design ........................................................................................................................ 6

Technical Data

Rating plate/marking.................................................................................................... 7

Components

Component parts of BK 15 .. ....................................................................................... 8

Key ............................................................................................................................. 9

Installation

BK 15 ....................................................................................................................... 10

Danger...................................................................................................................... 10

Flanged version ........................................................................................................ 10

Socket-weld version................................................................................................... 10

Butt-weld version....................................................................................................... 11

Attention ................................................................................................................... 11

Heat treatment of welds ............................................................................................. 11

Bringing into Service

BK 15 ....................................................................................................................... 12

Danger ..................................................................................................................... 12

Adjusting the regulator (supercooling, controlled steam ﬂowrate)................................... 12

Restoring the factory settings...................................................................................... 12

Tools ......................................................................................................................... 13

Operation

BK 15 ...................................................................................................................... 13

Page

Contents continued

Page

Maintenance

BK 15 ....................................................................................................................... 13

Danger...................................................................................................................... 13

Checking the steam trap ............................................................................................ 13

Cleaning/replacing the Thermovit regulator and strainer ............................................... 14

Tools ......................................................................................................................... 14

Torques..................................................................................................................... 14

Spare Parts

Spare parts list .......................................................................................................... 15

Taking out of Service

Danger...................................................................................................................... 15

Attention ................................................................................................................... 15

Disposal .................................................................................................................... 15

Usage for the intended purpose

Use the BK 15 steam trap only for discharging condensate from steam or for air venting.

Use in pipes for discharging condensate from steam, paying attention to the admissible

pressure and temperature ratings and the impact of chemicals and corrosion on the pres-

sure equipment.

Safety Note

The equipment may only be installed, brought into service, maintained and reﬁtted by

authorised staff who have the required knowledge and have undergone speciﬁc training.

Danger

The equipment is under pressure and hot during operation. Risk of injuries and severe

burns to the entire body.

Only perform installation and maintenance work when the equipment is not under pressure

(0 bar) and is cold (20 °C).

Before performing installation or maintenance work, vent the equipment and

isolate it from both upstream and downstream pressure.

Sharp edges on inner parts present a danger of cuts to hands.

Always wear industrial gloves when working on the equipment.

Attention

The rating plate speciﬁes the technical features of the equipment.

Do not bring into service or operate any equipment that does not bear its own speciﬁc

rating plate. The pressure and temperature data on the trap's rating plate must conform to

the requirements of the system.

Application of European Directives

Pressure Equipment Directive

The equipment conforms to this directive (see "Manufacturer's Declaration" section) and

can be used for the following ﬂuids: ■Group 2 ﬂuids

ATEX Directive

The equipment does not have a potential ignition source and as such is not subject to this

directive (see "Manufacturer's Declaration" section).

Once installed, static electricity may arise between the equipment and the connected

system. During use in potentially explosive atmospheres, the discharge or prevention of

possible electrostatic charging is the responsibility of the manufacturer or owner of the

system.

If there is a possibility of ﬂuid escaping, e.g. via actuating devices or leaks in screwed

couplings, the manufacturer or owner of the system must take this into consideration when

dividing the area into zones.

Important Notes

Important Notes continued

Notes on the Declaration of Conformity/

Manufacturer's Declaration

You can ﬁnd details on the conformity assessment in accordance with European Directives

in our Declaration of Conformity or Manufacturer's Declaration.

You can request the valid Declaration of Conformity or Manufacturer's Declaration from the

address below:

Modiﬁcations to the equipment not approved by us will cause this Declaration to lose its

validity.

GESTRA AG

Münchener Strasse 77

28215 Bremen

Germany

Tel. +49 421 3503-0

Fax +49 421 3503-393

E-mail [email protected]

Web www.gestra.com

Design

BK 15:

Version for installation in horizontal and vertical pipes.

Scope of supply

BK 15

1 Steam trap BK 15

1 Installation & Operating Manual

Description

Thermostatic steam trap with corrosion-resistant, water hammer-resistant Thermovit

(Duo stainless steel) regulator. The Thermovit regulator can be adjusted from the outside.

With integral strainer and non-return valve unit. Asbestos-free body gasket (graphite).

Installation in any position.

The steam trap is factory-set to discharge condensate with virtually no banking-up.

Greater supercooling can be set manually from the outside after installation.

The trap vents independently both when the system is started up and during operation.

The BK 15 can also be used as an air vent.

Explanatory Notes

Rating plate/marking

For pressure and temperature ratings, see the marking on the body or the information on

the rating plate. For further information, see GESTRA publications such as data sheets and

Technical Information booklets.

The type and version are indicated on the rating plate or body:

Manufacturer's name/logo

Type designation

Pressure class PN or Class

Material number

Direction of ﬂow

Stamp on body/rating plate, e.g. indicates the quarter and year of manufacture

(example: 1st quarter of 2010).

Technical Data

Fig. 1

Thermovit regulator

Standard version

30K supercooling

Nominal size

Ratings to

EN ISO 26552

Component parts of BK 15

Components

Fig. 2

Components continued

Key

AUnion nut G¾

BStufﬁng box ring

CPacking 9 x14 x 7

DCover

EAdjusting fork

FGuide ring

GThermovit regulator

HStrainer

IBush (force-ﬁt, no spare part)

JBody gasket 92,7 x 102 x 1

KBody

LRating plate

MHexagon nut M12

NHexagon bolt M12

BK 15

Any installation position is possible, as long as the direction of ﬂow arrow is complied with.

If installed in a horizontal pipe, it is best to have the cover facing upwards. We recommend

that you do not insulate the steam trap.

Danger

The equipment is under pressure and hot during operation. Risk of injuries and severe

burns to the entire body.

Only perform installation and maintenance work when the equipment is not under pressure

(0 bar) and is cold (20 °C).

Before performing installation or maintenance work, isolate the equipment from upstream

and downstream pressure, and vent it.

Sharp edges on inner parts present a danger of cuts to hands.

Always wear industrial gloves when working on the equipment.

Flanged version

1. Ensure the correct installation position.

2. Ensure the correct direction of ﬂow. The direction of ﬂow arrow is on the trap body.

3. Leave sufﬁcient space for servicing. When the trap is installed, a minimum space of

90 mm is required for opening cover D.

4. Remove the plastic plugs. They are used only as transit protection.

5. Clean the sealing surfaces of both ﬂanges.

6. Install the trap.

Socket-weld version

1. Ensure the correct installation position.

2. Ensure the correct direction of ﬂow. The direction of ﬂow arrow is on the trap body.

3. Leave sufﬁcient space for servicing. When the trap is installed, a minimum space of

90 mm is required for opening cover D.

4. Remove the plastic plugs. They are used only as transit protection.

5. Remove the Thermovit regulator as described in the Maintenance section.

6. Clean the socket weld end.

7. Install only using arc welding (welding process 111 and 141 to DIN EN 24063), or

equivalent standard.

Installation

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