Flowserve VK 14 User Manual
GESTRA
GESTRA Steam Systems
VK 14
VK 16
Installation Instructions 818577-00
Vaposcope Sightglass
VK 14, VK 16
1
Contents
Page
Important Notes
Usage for the intended purpose ............................................................................................................. 4
Safety note ............................................................................................................................................ 4
Danger ................................................................................................................................................... 4
Pressure Equipment Directive (PED) ...................................................................................................... 4
Explanatory Notes
Scope of supply ..................................................................................................................................... 5
Description ............................................................................................................................................ 5
Function................................................................................................................................................. 5
Technical Data
Corrosion resistance .............................................................................................................................. 6
Sizing..................................................................................................................................................... 6
Name plate / marking ............................................................................................................................ 6
Design
VK 14, VK 16.......................................................................................................................................... 7
Key ........................................................................................................................................................ 8
Installation
Danger ................................................................................................................................................... 9
VK 14, VK 16 .......................................................................................................................................... 9
Design with flanges ............................................................................................................................... 9
Design with screwed sockets ................................................................................................................ 9
Design with socket-weld ends............................................................................................................. 10
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Contents – continue –
Page
Commissioning
VK 14, VK 16........................................................................................................................................ 10
Operation
VK 14, VK 16........................................................................................................................................ 10
Maintenance
®
VK 14, DN 15, 20, 25: Replacing MAXOS
VK 14, DN 40, 50: Replacing MAXOS® safety sightglass ..................................................................... 11
VK 16, DN 15, 20, 25, 40, 50: Replacing MAXOS® safety sightglass ................................................... 11
Tools.................................................................................................................................................... 12
Torques ............................................................................................................................................... 12
A. F. ..................................................................................................................................................... 12
Spare Parts
Spare parts list .................................................................................................................................... 13
Decommissioning
Danger ................................................................................................................................................. 13
Disposal ............................................................................................................................................... 13
safety sightglass ............................................................... 11
Annex
Declaration of Conformity .................................................................................................................... 14
3
Important Notes
Usage for the intended purpose
VK 14, VK 16
Use Vaposcope sightglass only as sight flow indicators for monitoring flow in pipes.
Use this equipment only within the specified pressure and temperature ratings and check corrosion
resistance and chemical suitability for the application in question.
Safety note
The equipment must onyl be installed and commissioned by qualified staff.
Maintenance and service work must only be performed by adequately trained persons who have a
recognised level of competence.
Danger
The equipment is under pressure during operation.
When loosening flanged connections or sealing plugs, hot water or steam may escape.
This presents the danger of severe scalds to the whole body.
The equipment becomes hot during operation.
This presents the risk of severe burns to hand and arms. Installation and maintenance
work should only be carried out at room temperatures.
Before servicing the equipment or loosening flanged connections or sealing plugs
make sure that all connected lines are depressurised (0 bar) and the equipment has
cooled down to room temperature.
Sharp edges on internals present a danger of cuts to hands. Always wear industrial
gloves for installation and maintenance work.
Pressure Equipment Directive (PED)
The equipment fulfills the requirements of the Pressure Equipment Directive PED 97/23/EC.
For applications with fluids of group 2.
With CE marking (apart from equipment according to section 3.3).
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Explanatory Notes
Scope of supply
VK 14
1 Vaposcope sightglass VK 14
1 Installation manual
VK 16
1 Vaposcope sightglass VK 16
1 Installation manual
Description
The GESTRA Vaposcope is a sight flow indicator specially designed for monitoring flow conditions in
pipelines. If installed upstream of steam traps the Vaposcope can be used for checking the traps for
steam loss or for banking up of condensate.
■ VK 14 sightglass PN 16
■ VK 16 sightglass PN 40
Function
The GESTRA Vaposcope has no moving parts. The sightglass permits visual inspection of condensate
conditions. Condensate or steam (gas) are directed through the water seal by the deflector. As the
specific gravity of steam is lower than that of condensate the steam passes over the condensate and
depresses the condensate level.
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