Dovianus develops, produces and markets sampling systems for liquids, gases and liquefied gases under the name Dopak. We are respected for our sampling systems in the international chemical and petrochemical industries. Dopak closed vent samplers allow you to safely take samples of toxic, dangerous and volatile substances, without any danger for your operators or the environment.
source: http://www.dopak.com/
DPM Series
DOPAK® Sampling System to take representative samples
of fluids with low vapour pressures at low process pressures. Purge options are available.
Applications
Liquids at lower pressure
Sampling with low vapour pressures Corrosive, hazardous liquids Viscous fluids, slurries
Sampling from pipelines and tanks
Available Configurations
On/off
System Purge
Back purge
Needle purge
Back and needle purge
System purge and continuous needle purge In line, needle purge
HD Series
DOPAK® Sampling System to take representative samples
of fluids with low vapour pressures at low process pressures by using process valves.
Applications
Liquids at lower pressure
Sampling with low vapour pressures Corrosive, hazardous liquids Viscous fluids, slurries
Sampling from pipelines and tanks Fire safe/antistatic valves
Available Configurations
On/off
DOPAK HD Samplers
DOPAK® Sampling System to take representative samples
of fluids with higher viscosities by using piston valves. Outlet of sample valve will be purged to ensure zero dead volume.
Applications
Fixed volume sampling
Corrosive, hazardous liquids
Viscous fluids, slurries
Sampling from pipelines, tanks, reactors Vacuum conditions
Liquids at low and elevated pressures High temperature
Available Configurations
Purge
Fixed volume
Fixed volume with cooling/heating jacket Solvent purge
DPJ Series
DOPAK® Sampling System to take representative samples of fluids with higher viscosities by using piston valves. Outlet of sample valve will be purged to ensure zero dead volume.
DOPAK DPT Series
DOPAK® Sampling System to take representative samples
of fluids with low vapour pressures at low process pressures by using in line valves.
Applications
In line liquid sampling Corrosive, hazardous liquids Viscous fluids, slurries Sampling from pipelines
Available Configurations
In line, on/off
In line, continuous needle purge
DOPAK S23
DOPAK® Sampling System with internally coupled valves to take predefined quantities of fluids with low vapour pressures independed of process pressures with zero dead volume.
Applications
Fixed volume sampling
Liquid sampling at low
and elevated pressures Corrosive, hazardous liquids Sampling from pipelines and pump around loop from reactors Small 1cc sampling
Available Configurations
Threaded connections Welded/flanged connections Continuous needle purge Cooling/heating jacket
Third coupled valve
HVP (High Vapour Phase) High temperature
DOPAK S32
DOPAK® Sampling System with internally coupled valves to take predefined quantities of fluids with low vapour pressures independent of process pressures with zero dead volume.
Applications
Fixed volume sampling
Liquid sampling at low
and elevated pressures Corrosive, hazardous liquids Sampling from pipelines and pump around loop from reactors Small 1cc sampling
Available Configurations
Threaded connections Welded/flanged connections Continuous needle purge Cooling/heating jacket
Third coupled valve
HVP (High Vapour Phase) High temperature
DOPAK 32-LG Series
DOPAK® Sampling System with externally coupled valves to
take representative samples of liquefied gases in cylinders with internal or external outage. Purge options are available.
Applications
Liquefied gas sampling
Fixed external outage
High vapour pressure liquids
Zero quick connect vapour release
Available Configurations
System purge
Vent to flare
Outage tube
Purge expansion
Bypass purge cylinder
Process to flare
Outage tube with bypass purge cylinder System purge with additional
safety expansion cylinder
DOPAK S32-G Series
DOPAK® Sampling System with externally coupled valves to take representative samples of gases in cylinders. Purge options are available.
Applications
Gas sampling
Available Configurations
System purge
Bypass purge cylinder Process to flare