Emerson BVA Serie Instrucciones De Funcionamiento

General information:
The BVA/BVS series of bi-directional Ball valves
are designed for general use in isolating suction,
discharge and liquid line
maintenance shutdown periods.
For further information, see technical data sheet
A3.5.012.
!
Safety instructions:
• Read installation instructions
Failure to comply can result in device failure,
system damage or personal injury.
• It is intended for use by persons having the
appropriate knowledge and
attempting to install the valve, make sure
pressure in system is brought to and remains at
atmospheric pressure.
• Do not release any refrigerant into the
atmosphere.
• Do not use any other fluid media without prior
approval of Alco Controls. Use of fluid not
listed could result in:
- Change of hazard category of product and
consequently change of conformity assessment
requirement for product in accordance with
Technical Data Type:
Connection, DN
Max. working pressure PS
Medium temperature TS
Fluid group acc. PED
Refrigerant:
Material
Hazard category: PED 97/23/EC not applicable
Marking
BVA__65019__ R03.doc
Operating Instructions
Ball Valves
Series BVA / BVS
European pressure equipment directive 97/23/EC
- Chemical deterioration of components within
the valve.
Mounting location:
pipework during
The BVA/BVS valve may be installed in any
position which allows access to remove the stem
cap. The valves are bi-directional.
Locate the BVA/BVS as close as possible to the
section of pipework to be isolated. This will reduce
the amount of refrigerant to be recovered during
thoroughly.
future maintenance of the system.
Installation:
Do not remove seal caps until ready for installation.
The seal caps should be removed with care to avoid
skill. Before
damaging the extension tube connections.
Ensure valve is in the fully open position before
brazing. Failure to do so could cause damage to
internal components.
To avoid oxidization, it is advised to purge the
system with an inert gas such as nitrogen while
brazing.
When brazing, direct the flame away from the main
body of the valve to avoid possible internal damage.
Use wet rags or other suitable heat protection (see
Fig. 1).
BVA- / BVS-... ≤ 28 mm
1/4" (6mm) ... 1-1/8" (28mm)
43 bar
R22, R404A, R507, R134a, R407C, R410A
 U L
Replacement for 02
GB
BVA- / BVS-...> 28 mm
1-3/8" (35mm) ... 3-1/8" (80mm)
31 bar
–40°C ... +150°C
II
R22, R404A, R507, R134a, R407C
CW617N
I
, UL
Date: 16.06.2008
Emerson Electric GmbH & Co. OHG
Heerstr.111 – D-71332 Waiblingen
Tel.: +49(0)7151 509-0 - Fax.: -200
www.emersonclimate.com/europe
To avoid overheating the valve body, it is advised to
make the joint at one end and cool the valve
completely before repeating the procedure on the
other end connection.
Leakage test:
After completion of installation, a test pressure must
be carried out as follows:
- According to EN378 for systems which must
comply with European pressure equipment directive
97/23/EC
- To maximum working pressure of system for other
applications
Warning: Failure to do so could result in loss of
refrigerant.
Operation
To avoid operation by unauthorised persons valve
can only be operated after removing cap and
rotationg of stem by means of a tool. (EN378) In
case of emergency valves, the tool shall be located
near by and protected against misuse.
Warning: If the valve is installed in hot gas
discharge line, the valve has hot surface temperature
during operation of system or short after off-cycle.
PCN 861 829