Energie rinnovabili

Soluzioni di tenuta
Energie rinnovabili
Seals solutions
Renewable energy
Anelli di tenuta per alberi rotanti - V-Rings - Profili in gomma
Rotary shaft seals - V-Rings - Rubber parts
Energie rinnovabili2
Renewable energy 3
Impianti eolici - wind power plants4
Impianti idroelettrici - hydropower plants
6
Guarnizioni per movimenti rotanti - Rotary shaft seals 8
Anelli V-rings per tenuta frontale - Axial Seals 9
Profili in gomma - Rubber profiles 10
Guarnizioni per tenute stelo - Rod seals 11
Guarnizioni per tenute pistone - Piston seals
Altri profili - Other profiles
Anelli di tenuta per alberi rotanti - Rotary shaft seals 12
Anelli V-rings per tenuta frontale - Axial seals
13
Tenute stelo - Rod seals 14
Tenute pistone - Piston seals 15
Profili di tenuta per il settore idroelettrico 16
Sealing profiles for hydropower plants
Profili di tenuta per paratoie17
Sealing profiles for sluice gates Materiali - Materials 18
Rivestimento speciale - Special coating 19
1
Energie rinnovabili
La sempre maggiore richiesta di consumo di energia
elettrica è un tema ormai divenuto problematico a
livello mondiale sia nei paesi industrializzati, per i quali
la domanda ha superato la capacità di produzione di
energia, sia nel resto del mondo, per scarsità di risorse.
Negli ultimi anni, la ricerca di maggiori risorse quali
petrolio, carbone, gas, ecc.. è cresciuta di pari passo
con lo studio di nuove fonti energetiche di minore
impatto ambientale come ad esempio vento, sole ed
acqua.
Conseguenze come l’effetto serra, i cambiamenti
climatici, l’inquinamento di suolo e acqua, causati
dalla produzione indiscriminata di energia e fino a
qualche anno fa sottovalutati, mostrano ogni giorno
i loro nefasti effetti riferiti a gravi disastri ambientali
ed incalcolabili danni all’essere umano. Ecco perché
appare sempre più auspicabile ricorrere a fonti di
energia rinnovabile.
2
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•
Il sole
L’acqua (che comprende le maree, il moto
ondoso e Le correnti marine)
Il vento
Le biomasse, i biogas, i biodiesel
La geotermia
Le energie rinnovabili assumono sempre maggiore
importanza all’interno delle economie moderne, al
punto che i governi mondiali si stanno adoperando
per sfruttare al meglio queste preziose risorse, nel
rispetto dell’ambiente.
La ricerca e lo sviluppo di impianti ottimizzati per la
produzione di energia da fonti rinnovabili e a basso
costo di esercizio sono di fondamentale importanza
per contrastare la produzione derivata da fonti
tradizionali.
Attraverso le fonti rinnovabili ed un uso razionale
dell’energia, è possibile ridare equilibrio all’ambiente
e promuovere uno sviluppo economico all’insegna
dell’ecosostenibilità.
L’efficienza e la durata degli impianti dipendono
principalmente dalla progettazione e dai
comportamenti delle parti meccaniche nel corso
del tempo. Per ottenere migliori performance è
essenziale che anche i dispositivi di tenuta lavorino in
modo adeguato.
Si definiscono rinnovabili quelle fonti energetiche che,
a differenza dei combustibili fossili, si rigenerano
almeno alla stessa velocità con cui si utilizzano e
quindi non sono destinate ad esaurirsi.
La Manifattura Guarnizioni Colombo è a fianco dei
progettisti e dei manutentori proprio per garantire
la fornitura di guarnizioni di qualità, sia in termini di
materiali che di prestazione.
Esse sono quelle energie che permettono un minore
impatto sull’ambiente ed uno sviluppo sostenibile
della vita sul pianeta.
Nell’ambito delle Energie Rinnovabili i settori
industriali dove la Manifattura Guarnizioni Colombo
è presente con una propria gamma di articoli sono:
Le principali Fonti Energetiche Rinnovabili oggi
identificate sono:
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•
Impianti Eolici
Centrali idro-elettriche
Renewable energy
Today the attention of most countries all over the world
is being turned to the issue of the increasing electric
power production and consumption : in developed
countries, due to the fact that the actual demand has
overcome the real production capability and supply, and
in developing countries for the limited resources.
Over the last years the research in new resources, such as
petrol, coal, gas, etc. has been carried out together with
the study of new low impact energy sources, such as
wind energy, solar energy and water power for example.
Severe problems such as greenhouse gases, climate
changes, ground and water pollution, posed by an
indiscriminate energy production were considered
remote possibilities in the past, but now these
phenomena show day by day their tragic effects through
environmental disasters and incalculable damages for
humans. This is the reason why the use of renewable
energy is considered so useful and important.
Renewable sources, together with a more conscious
energy consumption concept, are the key factors which
will allow to restore a natural balance to the surrounding
environment and to find the right direction towards a
sustainable development.
Renewable sources, differently from fossil and petrol
derived fuels, are considered unlimited because they
naturally regenerate and replenish after use, so they are
not deemed to deplete.
They promote a human sustainable development with a
low impact for the natural environment.
The main Renewable Sources identified and studied today are :
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Solar energy
Sea water, tides, wave motion, marine current motion
Wind energy
Biomasses, Biogas, Biofuel;
Geothermal science
Renewable energies are more and more important in
all modern economies all over the world. In fact, the
international governments are trying to obtain and take
advantage of the access to these valuable resources by
respecting the surrounding environment.
The research and development of optimised plants
granting a low operating and maintenance cost are
very important for bearing comparison with traditional
energy sources.
The efficiency and the durability of the plants depend
mainly on the project and the performance of all
mechanical parts over the years. All the sealing devices
should operate adequately in order to obtain better
services from the plants.
The company Manifattura Guarnizioni Colombo
supports step by step engineers and maintenance
men by supplying high quality seals, both in terms of
materials and performance.
The company Manifattura Guarnizioni Colombo supplies
gaskets for the Renewable Energy field, especially for :
•
•
Wind power plants
Hydro power plants
3
Impianti eolici - Wind power plants
4
ll vento rappresenta una fonte di energia pulita
e rinnovabile che può rivelarsi, a breve termine,
concorrenziale rispetto alle fonti tradizionali.
Wind power is a clean and renewable energy source
which could turn out to be competitive on a short term,
if compared with traditional sources.
Essa è facilmente trasformabile in energia elettrica,
sfruttando lo stesso principio di funzionamento dei
vecchi mulini a vento.
In fact, it can be easily converted into electric power, by
following the same macchanisms guiding operations of
old windmills.
La realizzazione di impianti eolici è in continua
crescita in tutto il mondo e lo sviluppo tecnologico
del settore è legato principalmente all’aumento della
durata e dell’ affidabilità delle turbine eoliche.
The construction of wind power plants is constantly
increasing all over the world and the technological
development in the field is linked with a longer operating
life and to the reliability of the turbines.
La ricerca e l’introduzione di nuovi materiali
performanti permette alle parti meccaniche soggette
ad usura di resistere a condizioni climatiche estreme
sia sulla terraferma che in mare.
The research and the introduction of new high
performance materials allow all the mechanical
parts subject to wear effects to bear extreme weather
conditions both inshore and offshore.
Nell’ottica dell’analisi e della ricerca di nuove soluzioni,
un’azienda del settore deve percepire le tendenze e
collaborare con i progettisti.
In view of the analysis and research in new sealing solutions, a
company operating in the field should be aware of the latest
tendencies and cooperate with the engineers.
La Manifattura Guarnizioni Colombo produce da
anni articoli destinati ad applicazioni nel settore
eolico. La criticità dei materiali e la peculiarità
delle lavorazioni impongono rigorose selezioni di
guarnizioni destinate alle applicazioni più gravose.
The company Manifattura Guarnizioni Colombo
has produced for years items aimed at the application
in the wind power field. The peculiarity of the
materials and of the processing operations leads to
a meticulous selection of the gaskets to be used for
heavy duty applications.
L’ azienda dispone di un ufficio tecnico di lunga
esperienza, in grado di analizzare soluzioni che
soddisfino le esigenze degli uffici di progettazione e
dei reparti di montaggio e manutenzione.
Our technical department, thanks to a long experience
gathered over the years, is in the position to analyse solutions
for projecting, assembly and maintenance problems.
Si realizzano guarnizioni di tenuta a protezione dei
seguenti dispositivi:
The seals produced for this field are used for protecting
the following devices :
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cuscinetto dell’albero principale
cuscinetti dei rotori delle pale
riduttore principale
ralle di rotazione
cilindri oleodinamici di asservimento
main shaft bearings
rotor bearings
main gearboxes
slewing rings
pitch cylinders
La produzione comprende:
our range includes :
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•
•
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anelli di tenuta per alberi rotanti
v-rings
soluzioni composte in ptfe
o-rings e back-up rings
guarnizioni per cilindri oleodinamici
guarnizioni radiali per ralle di rotazione
rotary shaft seals
v-rings
composite seals in PTFE
o-rings and back-up rings
hydraulic seals
radial seals for slewing rings
Impianti eolici - Wind power plants
Schema rotore eolico
Wind turbine cutaway
Cuscinetto albero principale
Main shaft bearings
Ralle di rotazione
Slewing rings
Ralle di rotazione
Slewing rings
Riduttore principale
Main gearbox
Ralle di rotazione
Slewing rings
5
Impianti idroelettrici - hydropower plants
L’energia idroelettrica è, tra le fonti rinnovabili, quella
da più anni prodotta in tutto il mondo attraverso
impianti anche di grandissime dimensioni.
I moderni sistemi idroelettrici hanno la capacità
di generare energia attraverso impianti di diverse
portate.
Nelle grandi centrali idroelettriche si applicano
avanzati sistemi di produzione e di pompaggio in
grado di garantire l’accumulo di acqua in vasche
di notevoli dimensioni, poste a valle; qui la fonte
energetica viene riutilizzata dal sistema per garantire
nuova produzione di energia. Questa tecnica
permette lo stoccaggio di energia, così da garantire
un elevato grado di “fonte rinnovabile”.
La Manifattura Guarnizioni Colombo vanta una
lunga esperienza in forniture di guarnizioni per il
settore idroelettrico. La collaborazione con i gruppi di
gestione e manutenzione degli impianti ha favorito la
creazione di una sempre più ampia gamma di articoli.
L’ufficio tecnico è in grado di valutare ogni esigenza
dei clienti con competenza e professionalità.
Particolarmente rilievante è la capacità della
Manifattura Guarnizioni Colombo di fornire pezzi
speciali anche in pochi lotti.
La qualità e l’affidabilità dei prodotti sono
caratteristiche apprezzate dai gestori degli impianti,
che si affidano alla competenza dell’azienda per
migliorare l’efficacia delle tenute e delle prestazioni
operative.
Si produce una gamma completa di sistemi di tenuta
e guarnizioni per:
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valvole di intercettazione
valvole a farfalla e valvole a sfera
stazioni di pompaggio
condotte forzate
saracinesche
tutti i dispositivi idraulici e oleodinamici di
asservimento
La produzione comprende:
•
•
•
•
•
•
•
6
anelli di tenuta per alberi rotanti
guarnizioni a pacco in gommatela
sistemi di tenuta per cilindri idraulici
guarnizioni piane in ogni tipo di materiale
o-rings
trecce e baderne in fibre naturali e sintetiche
particolari a disegno in gomma e plastica
Among the renewable sources, hydropower is the most used
all over the world through the construction of huge plants.
The modern hydropower systems can generate power
through different flow capacity plants.
In great hydropower plants the most state-of-the-art
production and pumping systems able to grant water
accumulation into huge downstream tanks are applied
; in these tanks this resource is re-used by the system for
granting new power generation.
This method allows to keep an energy stock, by
maintaining a high-rate of “renewable source”.
The company Manifattura Guarnizioni Colombo has
accrued a long experience in the supply of gaskets for
hydro power plants.
The cooperation with managing and maintenance
groups for the plants has allowed to enlarge the range of
items produced for the field.
Our technical department is able to analyse every
requirement with competence and expertise; the
production capability for special items which can be
supplied in low amount batches is worthy of mention.
The quality and the reliability of our products are
appreciated by the maintenance men who trust our
competence for improving efficiency and operating
performance of the seals.
For the hydropower field we can produce gaskets and seals for :
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intercepting valves
butterfly and ball valves
pumping stations
pressure water pipes
gate valves
hydraulic and oil dynamic interlocking devices
Our range includes:
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rotary shaft seals
vee-packing sets in cotton fabric NBR
sealing systems for hydraulic cylinders
flat gaskets in many materials
o-rings
packings and braided packings in natural and
synthetic fibres
custom parts in rubber and plastic materials
Impianti idroelettrici - hydro power plants
Schema impianto idroelettrico
Hydropower plant cutaway
Saracinesca
Gate Valve
Valvola di condotta Forzata
Penstock valve
Giunto d’espansione
Expansion joint
Saracinesca
Gate Valve
Valvola principale
Main valve
7
Guarnizioni per movimenti rotanti - Rotary shaft seals
Rotary shaft seals
8
G-35
G-36
G-37
G-35 R
G-35 HP
G-35 HPAE
G-35 M
RGR
G-17
Anelli V-rings per tenuta frontale - Axial Seals
Axial seals
VA
VL
AX
VS
RME
VE
RM
TF
9
Profili in gomma - Rubber profiles
Rubber profile
10
PR025
PR505
PR962
PR241
PR654
PR983
Guarnizioni per tenute stelo - Rod seals
Rod seals
IGR/A
IGR/B
IGR/A/P
IGR/B/P
IGR/AW
IGR/BW
TEOL 1
TEOL 1B
Guarnizioni per tenute pistone - Piston seals
Pistons seals
EGR/A
EGR/B
EGR/A/P
EGR/B/P
EGR/AW
EGR/BW
TEOL 2
JWT
JWG
XEH
D SEAL DE
D SEAL DI
D SEAL
UM SEAL
EGR/AM
TEOL 1/R
Altri profili - Other profiles
Other profiles
11
Anelli di tenuta per alberi rotanti - Rotary shaft seals
Item
code
Profiles
Dim. range
[mm]
Materials
10 ÷ 2500
NBR + fabric
FKM + fabric
HNBR + fabric
VMQ + fabric
10 ÷ 2500
NBR + fabric
FKM + fabric
HNBR + fabric
VMQ + fabric
10 ÷ 2500
NBR + fabric
FKM + fabric
HNBR + fabric
VMQ + fabric
10 ÷ 2500
NBR + fabric
FKM + fabric
HNBR + fabric
VMQ + fabric
10 ÷ 2500
NBR + fabric
FKM + fabric
HNBR + fabric
VMQ + fabric
10 ÷ 2500
NBR + fabric
FKM + fabric
HNBR + fabric
VMQ + fabric
G35
G36
G37
P
[bar]
0,5
0,5
0,5
S
[m/s]
T
[°C]
20
Max 120
Max 220
Max 150
Max 180
20
Max 120
Max 220
Max 150
Max 180
20
Max 120
Max 220
Max 150
Max 180
20
Max 120
Max 220
Max 150
Max 180
20
Max 120
Max 220
Max 150
Max 180
20
Max 120
Max 220
Max 150
Max 180
GTR
G35/R
G35/M
G35/HP
10 ÷ 2500
NBR + fabric
FKM + fabric
HNBR + fabric
VMQ + fabric
Seal ring
10 ÷ 300
Supporting ring
Oil seal
RGR
0,5
4
• iron and steel plants
• shipbuilding industry
• wind power applications
• paper industry
• hydropower industry
• mining industry
• cement mills
Max 120
Max 220
Max 150
Max 180
4
20
200
0,1
• Hydraulic systems
• Machine tools
0,5
20
• Hydraulic cylinders
• Presses
• Mobile hydraulics
• Machine tools
PTFE
Nylon
G35/HPAE
G17
0,5
Applications
NBR
NBR + fabric
PTFE + glass + MoS2
PTFE + carbon
PTFE + bronze
10 ÷ 800
O-ring
Max 120
NBR
FKM
Max 120
Max 220
The pressure and temperature values shown in this table depend on several factors and are not valid simultaneously.
For this reason the data stated in this table are only to be taken as indicative. Please contact our technical office for further information.
12
Anelli V-rings per tenuta frontale - Axial seals
Item
code
Profile
Dim. range
[mm]
P
[bar]
Materials
S
[m/s]
T
[°C]
Applications
VA
VL
RM
Max Ø ext 2500
(moulded)
RME
AX
NBR
-30 ÷ 120
FKM
-30 ÷ 220
HNBR
-
-30 ÷ 150
18
NEO
-30 ÷ 80
SIL (VMQ)
-50 ÷ 180
EPDM
-30 ÷150
General, prevents dirt, dust, water
from penetrating, it can be used for
sealing grease
Used in :
- Iron and steel plants
- Shipbuilding industry
- Wind power applications
- Paper industry
- Hydropower industry
- Mining industry
- Cement mills
VE
VS
Max 210
NBR
SIL (VMQ)
TF
+ steel
+ steel
-30 ÷ 120
-50 ÷ 180
15
Hydraulic systems
Profili in gomma - Rubber profiles
Item
code
Profiles
Dim. range [mm]
P
[bar]
Materials
S
[m/s]
T
[°C]
Applications
PR025
PR505
PR962
200÷2500
PR241
Available as :
- rubber profile
- endless moulded part
NBR
FKM
HNBR
NEO
EPDM
VMQ
-
18
-30÷120
-30÷220
-30÷150
-30÷80
-30÷150
-50÷180
General, prevents dirt, dust, water from
penetrating, it can be used for sealing
grease
Used in :
- Iron and steel plants
- Shipbuilding industry
- Wind power applications
- Paper industry
- Hydropower industry
- Mining industry
- Cement mills
PR654
PR983
The pressure and temperature values shown in this table depend on several factors and are not valid simultaneously.
For this reason the data stated in this table are only to be taken as indicative. Please contact our technical office for further information.
13
Tenute stelo - Rod seals
Item
code
Profile
IGR/A
Dimensional
range [mm]
10 ÷ 1800
IGR/B
10 ÷ 1800
IGR/A/P
100÷ 1200
Materials
Seal ring
O-ring
Seal ring
O-ring
IGR/B/P
100÷ 1200
Back-up ring
IGR/AW
300 ÷ 1800
Seal ring
PTFE + bronze
PTFE + carbon
PTFE + graphite
PTFE + glass
PTFE+ glass MoS2
P
[bar]
400
400
250
250
400
S
[m/s]
T
[°C]
5
-30 ÷ 120
-10 ÷ 200
NBR 70 Shore A
FKM 70 Shore A
300 ÷ 1800
Energizing ring
Seal ring
TEOL/1
20 ÷ 600
Thrust ring
Back-up ring
• steel mills
• injection moulding presses
• forging presses
• extruding presses
• hydraulic cylinders
• machine tools
• moving machines
• valves for hydraulic and
pneumatic circuits
PTFE + bronze
PTFE+ glass MoS2
NBR 70 Shore A
FKM 70 Shore A
600
5
-30 ÷ 120
-10 ÷ 200
• Hydraulic cylinders for
special applications
• heavy industry
High performance Thermoplastic Material
PTFE + glass MoS2
PTFE+ carbon
300
400
• Hydraulic cylinders for
special applications
• heavy industry
5
IGR/BW
Applications
-30 ÷ 120
NBR 80 Shore A
NBR + fabric
FKM+ fabric
NBR 70 Shore A
FKM 70 Shore A
200
0,5
-30 ÷ 120
-10 ÷ 200
• Hydraulic cylinders
• Presses
• Mobile hydraulics
• Machine tools
PA6 Nylon
PTFE
../B
Seal ring
TEOL/2
NBR + fabric
FKM+ fabric
5 ÷ 1700
200
Energizing ring
NBR 70 Shore A
FKM 70 Shore A
0,5
-30 ÷ 120
-10 ÷ 200
• Hydraulic cylinders
• Presses
• Mobile hydraulics
• Machine tools
The pressure and temperature values shown in this table depend on several factors and are not valid simultaneously.
For this reason the data stated in this table are only to be taken as indicative. Please contact our technical office for further information.
14
Tenute pistone - Piston seals
Item
code
EGR/A
Profile
Dimensional
range [mm]
10 ÷ 1800
Materials
Seal ring
PTFE+bronze
PTFE+carbon
PTFE+graphite
PTFE+glass
PTFE+glass MoS2
EGR/B
10 ÷ 1800
O-ring
NBR 70 ShoreA
FKM 70 ShoreA
EGR/
A/P
100 ÷ 1200
Seal ring
PTFE+bronze
PTFE+glass MoS2
O-ring
NBR 70 Shore A
FKM 70 Shore A
Back-up
ring
High performance
thermoplastic
material
Seal ring
PTFE+glass MoS2
PTFE+carbon
EGR/B/P
EGR/AW
100 ÷ 1200
300 ÷ 1800
P
[bar]
400
400
250
250
400
S
[m/s]
T
[°C]
5
-30 ÷ 120
-10 ÷ 200
600
5
-30 ÷ 120
-10 ÷ 200
TEOL/2
JWT
300 ÷ 1800
200 ÷ 300
Energizing
ring
NBR + fabric
Energizing
ring
NBR
U-ring
NBR+fabric
Head ring
NBR
250
20 ÷ 600
• Hydraulic cylinders for
special applications
• heavy industry
• Hydraulic cylinders for
special applications
• heavy industry
-30 ÷ 120
NBR 80 Shore A
Seal ring
(back)
• steel mills plants
• injection moulding presses
• forging presses
• extruding presses
• hydraulic cylinders
• machine tools
• moving machines
• valves for hydraulic and pneumatic circuits
300
400
5
EGR/BW
Applications
0,5
-30 ÷ 120
340
-30 ÷ 120
• Hydraulic cylinders
• injection moulding presses
• forging presses
• extruding presses
• hydraulic cylinders
• Hydraulic cylinders
• injection moulding presses
• forging presses
• extruding presses
• Hydraulic valves
The pressure and temperature values shown in this table depend on several factors and are not valid simultaneously.
For this reason the data stated in this table are only to be taken as indicative. Please contact our technical office for further information.
15
Profili di tenuta per il settore idroelettrico - Sealing profiles for hydro power plants
Item code
Profiles
Dim. range
[mm]
Materials
P
[bar]
S
[m/s]
T
[°C]
JWG
200 ÷ 2500
NBR + FABRIC
FKM + FABRIC
HNBR + FABRIC
VMQ + FABRIC
300
0.25
Max 120
Max 220
Max 150
Max 180
XEH
200 ÷ 2500
NBR
FKM
HNBR
150
0.1
Max 120
Max 220
Max 150
D SEAL DE
200 ÷ 2500
NBR + FABRIC
FKM + FABRIC
150
0.5
Max 120
Max 220
D SEAL DI
200 ÷ 2500
NBR + FABRIC
FKM + FABRIC
150
0.5
Max 120
Max 220
D SEAL
200 ÷ 2500
NBR
FKM
NEO
100
0.5
Max 120
Max 220
Max 80
UNH
200 ÷ 2500
NBR
FKM
HNBR
100
0.1
Max 120
Max 220
Max 150
300
400
5
EGR/AM
TEOL 1/R
300 ÷ 1800
20 ÷ 600
SEAL RING
PTFE + GLASS + MOS2
PTFE + CARBON
ENERGISING RING
NBR 80SH
Max 120
VULCANISED HEAD RING
NBR 70 SHORE A
FKM 70 SHORE A
Max 120
Max 220
SUPPORTING RING
NBR + FABRIC
FKM + FABRIC
300
0.5
Applications
Valves for hydropower applications
• Hydraulic cylinders
• Presses
• Machine tools
The pressure and temperature values shown in this table depend on several factors and are not valid simultaneously.
For this reason the data stated in this table are only to be taken as indicative. Please contact our technical office for further information.
16
Profili di tenuta per paratoie - Sealing profiles for sluice gates
Other profiles
PRNM
PRNMP
PROM
PROMP
PRDB
PRDBP
APRNM
APRNMP
APROM
APROMP
APRDB
APRDBP
17
Materiali - Materials
Rubber
Materiali - Material
Proprietà - Properties
Applicazione - Applications
NBR - OLEOLITE®
Elastomer butadyene acrylo-nitrile
- Optimal mechanical resistance
- Resistance to wear
- Bad performance with heat
- Low resistance to fuels
- Low resistance to ageing
- Resistant to temp. -30 +120°C
- Hydraulic oils, grease, emulsions, water
- Mineral base fluids: HH,HL, HM,HV
- Fire-resistant fluids HFA,HFB,HFC
- Optimal resistance to high and low temperatures
- Good chemical resistance
- Bad performance with steam
- Resistant to temp. -20 + 220 C°
- Hydraulic oils, grease, emulsions, water
- Mineral base fluids: HH,HL, HM,HV
- Fire-resistant fluids HFA,HFB,HFC, HFD
Also available in autolub version
(compound containing a 3% ptfe part)
FKM
Fluorinate elastomer
Also available in autolub version
(compound containing a 3% ptfe part)
HNBR
Hydrogenated nitrile butadiene rubber
Also available in autolub version
(compound containing a 3% ptfe part)
VMQ
Silicone rubber
- Good mechanical resistance
- Good resistance to low and high temperatures
- Good sealing performance with gas
- Optimal performance with synthetic hydraulic oils
- Suitable for aliphatic hydrocarbons
- Not recommended for aromatic hydrocarbons
- good resistance to low and high temperatures
- Suitable for applications with food and
pharmaceutical products
- Optimal dielectric properties
- limited mechanical properties
- Resistant to temp. -30 +150°C
- Mineral oils
- Fire-resistant fluids HFA,HFB,HFC
- Water and detergents
- Resistant to temp. -50+180°C
-Bad performance with mineral oils.
-For other applications it is recommended to contact
our technical staff.
PTFE
Materiali - Material
Virgin PTFE
polytetrafluoroethylene
Proprietà - Properties
Compatibilità - Compatibility
- Low friction coefficient
- Optimal resistance to chemical agents and solvents
- Optimal dielectric properties
- Optimal resistance to temperature
- FDA approval
- Low wear resistance
- Low recovery
- Resistance to temp. -30 +120°C
- Hydraulic oil, emulsions, water.
- Mineral base fluids: HH,HL, HM,HV
- Fire-resistant fluids HFA,HFB,HFC, HFD.
Special PTFE Materials
PTFE filled with glass
- Optimal resistance to wear and optimal anti
- Extrusion properties
- FDA approval
PTFE filled with carbon
- Optimal resistance to wear and distorsion
- Bad dielectric properties
PTFE filled with graphite
PTFE filled with bronze
PTFE filled with bronze/MoS2
- Low friction coefficient
- Optimal heat dispersion properties
- Good performances in applications with steam
- Optimal resistance to wear and distorsion
- Good thermal conductivity
- Bad dielectric properties
- Good resistance to chemical agents
- Optimal resistance to wear and optimal
anti-extrusion properties
- Resistance to high pressure
- Hydraulic oil, grease, emulsions, water.
- Mineral base fluids: HH,HL, HM,HV
- Fire-resistant fluids HFA,HFB,HFC, HFD.
- Hydraulic oil, grease, emulsions, water.
- Mineral base fluids: HH,HL, HM,HV
- Fire-resistant fluids HFA,HFB,HFC, HFD.
- Hydraulic oil, grease, emulsions, water.
- Mineral base fluids: HH,HL, HM,HV
- Fire-resistant fluids HFA,HFB,HFC, HFD.
- Hydraulic oil, grease, emulsions, water.
- Mineral base fluids: HH,HL, HM,HV
- Fire-resistant fluids HFA,HFB,HFC, HFD.
- Hydraulic oil, grease, emulsions, water.
- Mineral base fluids: HH,HL, HM,HV
- Fire-resistant fluids HFA,HFB,HFC, HFD.
Rubber fabric
TENAX
TENAX PTFE
TENAX/ H.D.
Composizione - Base Composition
Applicazione - Applications
Cotton fabric / NBR sh 75
Colour black
Cotton fabric / NBR sh 75
colour: white
Elastomer base compound containing PTFE
Cotton fabric / NBR sh 90
Colour: red – brown ord blue
- FDA approval available on demand
- Special version for heavy duty applications Max temperature 120 ° C
For hydraulic oils, water emulsions and HFA, HFB, HFC fluids
TENAX FKM
Cotton fabric / FKM sh 75
Colour black
TENAX FKM/kev
Cotton fabric / FKM sh 75 + aramidic fibre
Colour black
Cotton fabric / NBR sh 75 + aramidic fibre
Colour black
Cotton fabric / HNBR sh 75
Colour black
Cotton fabric / VMQ sh 75
Colour red
TENAX/NBR/kev
TENAX/HBR
TENAX/VMQ
Max temperature 120 ° C
For hydraulic oils, water emulsions and fluids
Max temperature 120 ° C
For hydraulic oils, water emulsions and HFA, HFB, HFC fluids
Max temperature 180 ° C
Hot oils – low pressure steam – acids – alkali – solvents –
phosphoric esthers - HFA,HFB, HFC,HFD fluids
Max temperature 200 ° C
For special applications
Max temperature 120 ° C
For special applications
Max temperature 150 °C
For hydraulic oils, water emulsions and HFA, HFB, HFC fluids
Max temperature 180 °C
For special applications
The pressure and temperature values shown in this table depend on several factors and are not valid simultaneously.
For this reason the data stated in this table are only to be taken as indicative. Please contact our technical office for further information.
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Rivestimento speciale - Special coating
Trattamento protettivo FRILON® sul labbro di tenuta
Il trattamento protettivo Frilon® si effettua sulla superficie di tenuta. Il trattamento prevede la termosaldatura di uno strato di polimero
a base di PTFE sulla superficie in gomma.
Vantaggi :
•
Riduzione significativa del coefficiente di attrito
•
Straordinario potere di antiaderenza con effetto no-stick
•
Ottima scorrevolezza sulla superficie di tenuta
•
Maggiore durata nel tempo della guarnizione
•
Maggiore resistenza agli agenti chimici
•
Maggiore resistenza agli agenti atmosferici
Di norma i prodotti in gomma hanno un coefficiente di attrito dinamico di 0.5 µ, con il trattamento Frilon si ottiene una riduzione fino a 0.07 µ.
Il trattamento Frilon® può essere realizzato su tutti i materiali (NBR – FKM – HNBR) compresi i materiali con caratteristiche FDA.
G35 with Frilon coating
V-ring with Frilon coating
D-seal with Frilon coating
JWG with Frilon coating
Protective FRILON® coating on the sealing lip
The protective Frilon® coating is made on the sealing surface ; with this treatment a PTFE base polimer layer is thermo-welded on the rubber surface.
Advantages :
•
Significantly reduced friction coefficient
•
an extraordinary no-stick effect
•
optimal smooth running effect on the sealing surface
•
longer seal life
•
better resistance to chemical agents
•
better resistance to atmospheric agents
Rubber items normally have a dynamic friction coefficient of 0.5 µ; with the Frilon® treatment this coefficient is reduced till 0.07 µ.
This treatment can be made on all materials (NBR – FKM – HNBR) including the ones with FDA approval.
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Gaskets & seals solutions
ANELLI DI TENUTA DIN 3760
OIL SEALS DIN 3760
Gaskets & seals solutions
Marine engines and power stations
Gaskets & seals solutions
Piping service
CAF compressed asbestos fibers, Graphite
Rubber, Metal seals and Braid Packings
Gaskets & seals solutions
Heavy industry
Hydraulic cylinders and rotary movements
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Gaskets & seals solutions
Oil & Gas Industry
Spare parts for valves
Gaskets & seals solutions
TENAX®
Vee-Packings - Chevron sets
Gaskets & seals solutions
Sealing sets
Gaskets & seals solutions
High pressure pumps
Water jet, plunger and triplex pumps
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Head office:
Manifattura guarnizioni colombo & c. s.p.a.
24067 Sarnico (BG) via Vittorio Veneto, 48
Tel. +39035910052 Fax +39035910957
P.iva: 02385600164
E-mail: info@colombospa.com
Web site: www.colombospa.com
Factory in Paratico:
25030 Paratico (BS) Via Vanzago, 30
Factory in Novate Milanese:
20026 Novate Milanese (MI) Via Curiel, 12