spectrotec BT2000-AC User manual

GES_Shut-Off Unit AC_0414
1
Contents
Page
1 Use 1
1.1 Technical data 2
1.2 Labelling 2
2 Safety information 3
3 Installation 5
4 Repairs 6
1 Use
The shut-off units are designed exclusively for use with a BT 2000-AC or BU13-AC pressure
control panel. They allow bilateral expansion of the existing supply system with further gas
cylinders and separate shut-off of the two supply lines.
All stipulations valid for the pressure control panel BT 2000-AC and BU13-AC must also be
observed during operation and use of the shut-off units.
The shut-off unit may only be used for the gas type acetylene.
Note
The materials and production processes used are tailored to the intended use.
All components represent the technical state of the art, comply with the recognised
engineering standards and meet the requirements of the standards and regulations applicable
in this field, in particular the acetylene regulations.
The components are manufactured with the utmost care and under clean conditions in special
workshops, where they are subject to continuous quality controls throughout the production
process.
Each complete system and its individual components are tested for correct functioning and
leak-tightness, thus ensuring compliance with the exacting Spectron quality standards.
Compliance with this instruction manual, and in particular
the safety instructions, is mandatory when handling the articles listed above.
Instruction manual
Shut-off unit for
BT2000
-
AC / BU13
-
AC

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1.1 Technical data
SPECTROTEC Shut-off unit for acetylene
Max. permissible pressure PV: max.25 bar
Materials:
Distributor: brass
Screw fittings, ball valve and pipe: zinc-plated steel
Mounting plate: stainless steel
Weight:
Shut-off unit DN5 4.3 kg
Shut-off unit DN10 5.9 kg
Connections:
Shut-off unit DN5 (inlet+outlet) M16x1.5 (Ermeto)
Shut-off unit DN10 (inlet+outlet) Inlet: M24x1.5 (Ermeto) Outlet: G3/4“-LH
Article numbers:
Shut-off unit DN5 718.34151
Connection kit DN5 718.34174 (straight pipe)
Shut-off unit DN10 718.34150
Connection kit DN10 718.34168 (bent pipe)
1.2 Labelling
On the baseplate of the shut-off unit, there is a type plate with information on:
 Type
 Part number
 Date of manufacture
 Max. permissible pressure
 Gas type
Inspection sticker
Prior to delivery, all shut-off units undergo a 100% leak and function test. To document this,
an inspection sticker is attached on the mounting plate on the back of each panel.

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2 Safety information
2.1 Handling combustible gases
Specialist knowledge is required when handling acetylene, and the instructions in this manual
and existing regulations must be complied with.
Training and regular safety training for operating personnel on the correct procedures for
handling this system, combustible gases and pressurised gas vessels is mandatory and must
be repeated annually. Incorrect handling and/or use of the system can endanger operating
personnel and other persons, and can lead to damage to the system and the surrounding area.
This instruction manual must be available to operating personnel at all times.
2.2 Manifold size and output
The withdrawal rate per acetylene cylinder should not exceed 500 l/h in continuous operation.
This prevents solvent being withdrawn from the cylinders.
For brief periods, the withdrawal quantity can be increased to 1000 l/h.
2.3 Gas-specific design
The shut-off unit may only be used for acetylene. Alternating use for other gases is not
permitted. It is also prohibited to attach adapters to the cylinder connection. The materials and
seals have been selected for gas type "acetylene."
2.4 Resistance of the materials
The resistance of the materials can only be guaranteed with the use of dry gas and if lines and
fittings are dry-purged. Incorrect installation and leaking screw fittings can reduce the service life
of the equipment.
2.5 Regulations, directives, technical specifications
A series of regulations must be observed when installing and operating acetylene cylinder
manifolds. For example, the systems created must comply with the following regulations and
rules.
2.5.1 Accident prevention regulations
BGR 500 (Sections 2.26, 2.31, 2.33)
2.5.2 Laws, ordinances, technical regulations
 German acetylene ordinance with technical rules for acetylene (TRAC),
e. g. TRAC 204, 206,207 etc.
 Explosion protection directives Ex RL
 Guidelines for the prevention of ignition hazards as a result of electrostatic
charging.
 The installation of electrical equipment in potentially explosive atmospheres.
VDE 0170/DIN 57 165
 Employers' liability insurance association leaflet on preventing the explosion of
acetylene cylinders.

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Abb.2
Absperreinheit DN 10
(Maße für Absperreinheit DN 5 in Klammern)
Abb.3
Entspannungsstation BU 13-AC mit Anschlußkrümmer (, Absperreinheit und beidseitiger Erweiterung DN 10
3
4
5
2
6
1
2
7,8
1

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3 Installation
3.1 Installation must be performed by personnel with the requisite expertise and who have
received the appropriate training and instruction on safety engineering.
3.2 All components of the shut-off unit are tested for correct functioning and leak-tightness
prior to delivery. All apertures are closed off.
3.3 Before commencing installation, check that connections and threads are undamaged
(possibly by briefly blowing them out). If damage is ascertained, the extension must not
be connected.
3.4 Screw connection kit in the case of BT2000-AC or pipe elbow of BU13-AC (5) to the
connector (2) of the shut-off unit (1) and the connector (4) of the pressure control panel
(3).
To ensure adequate stability of the Ermeto screwed connection, it is essential to
tighten the pre-assembled union nut in accordance with the installation
instructions for pre-assembled Ermeto screw fittings (Document No. 770.53378).
3.5 Attach the baseplate of the shut-off unit (5) and where applicable cylinder brackets (not
shown here) to the wall using the screws provided.
3.6 If further extensions (6) are to be added, the screw plug (7) must be removed from the
respective distributor block (8) and the extension installed as specified in the instruction
manual included in the scope of delivery of the extension modules.
3.7 Place the cylinders in front of the brackets, connect them and secure them with safety
chain or strap.
3.8 When all screws, screw fittings and connections have been tightened, slowly supply the
system with gas and carry out leakage testing on all newly installed, gas-bearing
connections.

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4 Repairs
4.1 For safety reasons, repairs must be carried out in authorised workshops, by the
manufacturer or suitably qualified personnel.
4.2 Only original spare parts may be used.
4.3 After every repair, the panel must be checked for correct functioning and leak-tightness.
4.4 The manufacturer accepts no liability for repairs not effected in authorised workshops, if
the panels are modified or if non-original spare parts are used, and in such cases, the
warranty is rendered null and void with immediate effect.
4.5 The system should be tested for correct functioning and operational safety once per year
by the manufacturer.
4.6 Annual inspection of the flashback arrestors and other safety devices attached to the
tapping points downstream of the pressure control panel is prescribed by law. The
operator must provide verification of this.
GES_Shut-Off Unit-AC Edition 0414
Subject to change without notice
© Spectron Gas Control Systems GmbH
Spectron Gas Control Systems GmbH
Fritz-Klatte-Str.8, D-65933 Frankfurt
Tel.: [phone], Fax: [phone]