Jouko Riihonen

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Keep Energy Under Control
Jouko Riihonen Export Manager Vexve Oy
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• VEXVE
• Vexve Ball Butterfly valves
• Vesiverto Water Metering Systems
• - Vexve Controls Heating controllers
  regulators

We save energy!
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Main applications

• All Vexve valves are designed for District
  Heating Pipelines
• District Heating
• Steam
• Oil

The only modern Butterfly Valve designed for DH
DC pipelines!
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Butterfly Valves from Finland

• Metal seated
• Dimensions DN 300 DN 1400
• Body class PN 25
• Trim class PN 25 and PN 16
• Temperature -40 C - 200 (250 C)
• Welded and flanged end connections

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Butterfly Valves from Finland

• Full bore
• Lightweight
• Designed according to EN488
• Maintenance free structure
• CE-marked
• High-quality pressure vessel steel

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Butterfly valve weldings

• Welding seams
• According to PED
• Quality requirements according to EN 3834-2
• All welders have qualification (EN 287 and 1418)
• All welding seams have own welding manuals
  (destructive examinations)
• Non destructive testing, 100 visual check
  (EN970) Penetrant testing (EN 571-1)
• Radiographic testing optional

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Traceability

• Individual valve numbers
• Individual manufacturing reports

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Pressure testing of butterfly valve

• Every valve is tested both sides according to EN
  12266-1
• W1 valves seat test with 18bar
• Leakage rate A
• W2 valves seat test with 27,5 bar
• Leakage rate A
• Bodytest W1 and W2 38bar (180s)

No valve leaves the factory without checking!
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Vexve Full Bore Butterfly Valve Design
It is a Full Bore Design
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Temperature and Pressure Range/Curve
Designed for DH-pipelines!
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Difference between shut-off and control valve
Graphite packing
BFS/BRS O-rings Viton 0200oC NBR -4070oC
BFC/BRC (-40250oC)
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KV values of butterfly valves
Kv valve flow coefficient Q volumetric flow
rate m3/h ? p pressure differential across
the valve bar
Full open butterfly valve KV value and
hydraulic resistance coefficient (z)
Approximately 50 better than old type butterfly
valves!
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Ball vs. Butterfly Prices
Inexpensive, light weight, class A,
bi-directional
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Assembly of the butterfly valve

• Valve has been designed for pure liquid
• gt The pipeline should be clean and flushed!

During the flushing, the valve opening should be
about 5 degree. Pressure shocks should be
avoided. Pipeline maximum test pressure 38bar
(the valve is opened) 27,5 bar (the valve is
closed) Blind flange should be always welded
after the valve if the pipeline ends and it
should fulfill with air removed water.
And make sure there is no oxycen in water!
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Welding
Extension pipes are recommended for trouble free
installation
And PLEASE read the Manual!
Bypass valve is recommended to protect the
pipeline against pressure shocks the valve
itself does not need that.
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Special valves for customer
All in one package Vexve Butterfly valve Vexve
service valves Vexve by-pass valve gearbox
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Vevxe Buterfly by pass valves
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Special valves for customer
Extra height 350 mm
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3D testing and measuring
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Butterfly Valve Production
Designed Manufactured 100 in Finland
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Partial Reference List of Vexve Butterfly Valves
Belarusia Mogilevenergo, Mogilev Minskenergo,
Minsk Gomelenergo, Gomel Bulgaria Sofia
District Heating Company China Beijing District
Heating Company Tianjin District Heating
Company Chengde District Heating
Company Changchun District Heating
Company Taiyuan Heating Group Xingtai
District Heating Company The Czech
Republic Praque District Heating Company Pilzen
District Heating Company Ostrava District
Heating Company Croatia HEP Toplinarstvo
District Heating Company Denmark Herning
District Heating Company Estonia Pärnu
Elektrijaam Finland Helsinki Energy District
Heating Company Pori Energy District Heating
Company Tampere Energy District Heating
Company Turku Energy District Heating
Company Oulu Energy District Heating
Company Kuopio Energy District Heating
Company Vaasa Energy District Heating
Company Lahti Energy District Heating
Company Lappeenranta Energy District Heating
Company
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Partial Reference List of Vexve Butterfly Valves

Hungary Budapesti Erömü Rt District Heating
Company BERT Budapest Italy Milan District
Heating Company Turin District Heating
Company Kazakstan Almaty District heating
Company Astana District heating
Company Garaganda District heating
Company Ust-Kamenogorsk District heating
Company Latvia Riga Power Plant Tec 1 Riga
Power Plant Tec 2 Lithuania Vilnius District
Heating Company Utenas District Heating
Company Siauliai District Heating
Company Panevezys District Heating
Company Kaunas District Heating
Company Klaipeda District Heating
Company Ignalina Nuclear Power Plant
Poland Przedsiebiorstwa Energetyki Cieplnej
S.A., Jastrzebie Zdroj Miejskie
Przedsiebiorstwo Energetyki Cieplnej, Cracow
Vattenfall Heat Poland SA., Warsaw Gdanskie
Przedsiebiorstwo Energetyki Cieplnej Sp. z o.o.,
Gdansk PGNiG Termika, Warsaw Komunalne
Przedsiebiorstwo Energetyki Cieplnej Sp. z o. o.,
Bydgoszcz DH Bialystok DH Lublin Romania Rade
t District Heating Company, Bucharest
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Partial Reference List of Vexve Butterfly Valves
Russia District heating companies Surgut Sa
int Petersburg Ekaterinburg Irkutsk Novosibi
rsk Nizhny Novgorod Kazan Samara Krasnojar
sk Sweden E-ON Fortum
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Vexve Valves in Hungary
Ball valves Budapesti Eromu ZRt. Fotav
ZRt. Debreceni Hoszolgaltato ZRt. Termosztar Kft.
Kecskemét Gyorszol ZRt. Vaci Tavho Kft.
Butterfly valves Budapesti Eromu ZRt. Fotav ZRt.

• Hungarian Distributor
• SICHNA Kft
• 1203 Budapest
• Határ út 44.
• Tel. [phone]
• 36 1 285-6966
• Email info_at_sichna.hu

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Vexve Butterfly Valves in Hungary
Budapesti Eromu ZRt.
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Vexve Butterfly Valves in Hungary
Budapesti Eromu ZRt.
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Vexve Butterfly Valves in Hungary
Fotav ZRt.
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Vexve Butterfly Valves in Hungary
Budapesti Eromu ZRt.
NOT a Vexve valve
Vexve Butterfly valve to close the line
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Jouko.riihonen_at_vexve.fi www.vexve.fi
Jouko Riihonen Export Manager Vexve Oy
Keep Energy Under Control