Basis HTML versie
Dual Expanding Plug Valve
| 15
Special “fugitive emission” packing-system
This unique packing design provides special sealing properties even under the most stringent conditions. Due to the
special packing system the VE
®
Dual Expanding Plug Valve is awarded the FUGITIVE EMISSION Certification according
to ISO 15848-1 2006 Annex B.
Back seat design
In case of stem-leakage the special “back seat” design provides the possibility to re-adjust the packing-gland or add
additional gland packing-rings during field operation.
WARNING
: take all the necessary safety measures, follow the instructions according to our “installation and operation
manual”, which is included with every valve or downloadable from our website
.
Slips
The special slip-design provides the VE
®
Dual Expanding Plug Valve a unique sealing-system. The primary seals is an
elastomer which is fully vulcanized on to the metal. An additional safety seal is achieved by a metal-to-metal contact
between the metal-slip and internal valve-body. The sealing and contact area of valve-body is fully ENP-coated ensuring a
corrosion-free contact with the slips. The slips have a Manganese Phosphate anti-corrosion treatment. There is complete
spare-part program available. Used slips can easily be removed and replaced.
Back-seat
Packing
Painting – Standard
Dark Blue
In addition to the ENP-protection of the
body and the upper- and lower pate,
the VE
®
Dual Expanding Plug Valves
are protected with a primer layer and a
dark-blue painting. Other colours, paint
combinations or paint thicknesses are
available on customer request.