Hilger u Kern & Dopag Group

Product data
• metering volume infinitely adjustable
• high-precision, reproducible dosage
• high pressure
• electric or pneumatic control
• Metering volume: 0,001 - 1,0 cm3
• Material input pressure: 3 - 20 bar

 Options
• wetted parts made of stainless steel
• valve seat and valve needle made of
hard alloy for processing abrasive
media
• handle for electric or pneumatic control
• universal holder for adjusting the
valve in height and depth

 Chamber metering valve
The chamber metering valve is constructed with a metering chamber, whose size is adjusted to the metering volume.
Standard sizes in different optional types allow a shot size from 0,050 up to 100,00 cm3.
Metering volume: 0,050 - 100 cm3

0,050 - 0,50 
0,100 - 3,00 
0,500 - 12,00 
5,000 - 100,00

Cartridge metering valve
The cartridge metering valve is a new generation of precision metering valves based on a completely new
principle. The metering chamber is an exchangeable cartridge contained within an aluminum valve body.
The volumetric output is infinitely adjustable between its limits. The speed of metering depends on the viscosity of
the material and the material pressure. Adjusting the metering volume can be achieved easily by simply changing the
metering cartridge. Metering volume: 0,025 - 10 cm3
Cartridge: 0,025 / 1,0 / 10 cm3

0,025 - 0,25
0,050 - 1,00 
0,500 - 10,00

Dispensing valve Series 400 / 401 / 402

Dispensing Valves

Dispensing valves are used for processing low to high viscosity media. Adjusting the position of the needle in relation to its seat can control the size of the outlet orifice, thus giving control of the flow rate of the material. When fully closed, the needle seals against its seat and is sealed at the throat by an adjustable packing set. The valve is constructed in two separate parts. This separation of the fluid section from the actuating air section means that it is not possible for any leaking material to flow into the actuating air cylinder, which might otherwise cause a malfunction of the valve. Material passageways can be quickly flushed out if necessary.

Product data

• Small Material Passageways
• Extremely High Opening And Closing Forces
• Fitted With Special Adjustable Packings
• Double Acting Pneumatic Actuation
• Capable Of Withstanding High Pressures
• Electric Or Pneumatic Control

1,0 mm
2,0 mm            
2,5 mm              
4,0 mm 
6,0 mm 
12,0 mm 
12,0 mm 
12,0 mm 
13,0 mm   
16,0 mm

 

Membrane dispensing valve
The MEMBRANE DISPENSING VALVE has been specifically developed to dispense both one and mixed two component reactive, abrasive and chemically aggressive fluids from low
to high viscosity. This low maintenance valve relies on a flexible diaphragm to seal the fluid passageways from the pneumatically driven actuating section of the valve, with only the valve
head and membrane in contact with the media. If necessary the fluid passageways can easily be flushed. The “snuffer” effect of the membrane valve is especially useful in automatic applications where even small unwanted drips or material “strings” can severely effect the quality of the finished products.

• Pump Systems
• Robust, pneumatically driven, double acting, reciprocating (chop check) pump
• Generates an operating pressure of up to 300 bar
• 2-hand safety control
• Level monitoring with automatic cut-out if the drum is empty
• Hard-chromed piston
• Wetted parts made from stainless steel
• Fluid Regulating Valves

 

Material pressure regulators for a reduced and continuous material pressure for all metering and dispensing  applications
DOPAG material pressure regulators are used to reduce the feed pressure down to the required operating pressure.
As well as accurately regulating material pressure, these valves will also compensate for pulsations that occur as a result of the reciprocating action of piston pumps. Pulsations cause a brief decrease in pressure that could lead to
a slight reduction in the flow of material. These regulators can be used on materials with viscosities from 5,000 to 500,000 mPa s. DOPAG material pressure regulators are manufactured with two different types of construction:
• Regulators with piston
• Regulators with diaphragm

Optionally, a remote control is available for valves with diaphragm to regulate the operating pressure in place of manual adjustment. Optionally, twin pressure gauges display the material input pressure as well as the material outlet pressure. Optionally, material input filters are available to prevent contamination and possible blockages within the system. ensures constant material pressure at the application point.
- Reduces high pump pressure

For low to high viscosity media

Compensates for pressure fluctuations reliably

No wear, even with abrasive media

Progressively adjustable pressure range

- Two versions available (with membrane or pressure spring)

• Material pressure regulator with piston: This type of material pressure regulator is especially suitable for the processing ofself-lubricating materials such as greases and oils as well as single and plural component silicones. The sealing of the spring space takes place via a slide ring seal
• Material pressure regulator with diaphragm: This type of material pressure regulator is most suitable for use with reactive, moisture-sensitive and – because the ball and seat are manufactured from tungsten carbide – also abrasive media, such as, epoxy resins, polyurethanes and many other materials. The sealing of the spring space takes place via the diaphragm.

Remote control for material pressure regulator with diaphragm: The remote control enables easy and accurate setting of the operating pressure, without any manual adjustment, to respond to changing production conditions or flow rates. The change in operating pressure occurs as a result of the adjustment of the air pressure to the diaphragm. This is especially useful when regulators are located in difficult to access or hard to reach areas.

Flow regulator valve
to achieve close metering tolerances.
- reduces the flow rate of material at the end of the
metering cycle
- protects from overdosing

• Electronically Controlled Metering Systems

Metering computer

• Solves difficult metering tasks.
• Ensures maximum metering accuracy
• Detects and monitors the material quantity
• Menu-guided by LCD display
• Production program storage
• Interface with higher-ranking system control
• Electronic volume counter
• Measures the volume of material passing through.
• Working pressure up to 250 bar

• Tecognizes the direction of flow of the media
• Suitable for abrasive media
• highly accurate

Dopag Two Component Systems:

Micro-Mix

• The DOPAG MICRO-MIX A/B is a pneumatic driven, piston pump type rod metering and mixing system, used to process low to medium viscosity, multi component materials such as epoxy resins, polyurethanes, silicones, and others. These materials may be unfilled, filled, as well as abrasive or moisture sensitive. The Dopag Micro Mix A/B system can be used in a variety of different applications. The Dopag Micro Mix A/B is a custom configured machine platform. One of our application engineers would be pleased to assist with complete system configuration.
• The DOPAG MICRO-MIX S metering and mixing system is a servo driven, computer controlled, proportioning system. Capable of processing low to high viscosity two component media with advanced rod metering proportioning piston pump technology. The Dopag Micro Mix S was designed to dispense controlled volumes in precise proportions. The system is controlled by a metering computer, which enables integration into semi or fully automated production processes. The DOPAG MICRO-MIX S metering and mixing system is ideal for use in small, medium, and large production situations. DOPAG MICRO-MIX S Plural Component Metering Unit fits any process requiring small shot dispensing. Bench top configuration for manual to automated applications. A variety of options are available to configure a DOPAG MICRO-MIX S system to meet your precise manufacturing application. One of our application engineers would be pleased to assist with complete system configuration.
• The DOPAG MICRO-MIX K is a pneumatic or servo driven, solvent free piston pump type rod metering and mixing system, used to handle low to medium viscosity multi component media such as polyurethanes, silicones or epoxy resins. Suitable for the smallest sizes when configured with micro metering valve. A variety of options are available to configure a DOPAG MICRO-MIX K system to meet your precise manufacturing application. One of our application engineers would be pleased to assist with complete system configuration.
• The DOPAG MICRO-MIX S is a servo driven, computer controlled, solvent free piston pump type rod metering and mixing system, designed to handle high viscosity single or multi component media such as polyurethanes, silicones or epoxy resins. These materials may be unfilled, filled, as well as abrasive or moisture sensitive. With dual pump and drive combinations, the Dopag Micro Mix SS is an advanced processing system, which can be used in a variety of different applications requiring continuous high output rates, controlled dispensed volumes in precise proportions. The Dopag Micro Mix SS Mix is a custom configured machine platform. One of our application engineers would be pleased to assist with complete system configuration.
• The Dopag Micro Mix E metering and mixing system will process low to high viscosity two component media depending on configuration with advanced rod metering proportioning piston pump technology designed to dispense controlled volumes in precise proportions. The DOPAG MICRO-MIX metering and mixing system is ideal for use in small, medium, and large production situations. Dopag Micro Mix Plural Component Metering Unit fits any process requiring small shot dispensing. Bench top configuration for manual to automated applications. A variety of options are available to configure a Dopag Micro Mix system to meet your precise manufacturing application.

Dopag Micro Mix A/B
Dopag Micro Mix S
Dopag Micro Mix K
Dopag Micro Mix S
Dopag Micro Mix E

Econo-Mix

• The DOPAG ECONO-MIX is a solvent free piston pump type metering and mixing system, used to handle low to medium viscosity multi component media such as epoxy resins, polyurethanes or silicones with a volumetric mixing ratio of between 100:100 and 100:16.       
• Pressure vessels mounted onto a portable chassis, are used to supply the material into the piston type metering pumps. The pumps are driven by a single air motor. A lever system connects pumps and drive. The pump for the A component is fixed to the lever system and shares the same stroke length as the drive motor, whereas the pump for the B component is movable along the lever system and thus has a variable stroke length which is used for the fine adjustment of the mixing ratio. The DOPAG ECONO-MIX C is fitted with a static mixing system that includes a twin snuffer valve combined with a disposable static mixer.

Flow rate up to	2 l/min
Mixing ratio	100:100 to 100:16, by volume
Maximum working pressure	100 bar
Mixing system	Static mixing system Twin snuffer valve Disposable static mixer
Material supply	Pressure vessels, 4 to 45 l
Viscosity range	100 to 50,000 mPa s
Material characteristics	Unfilled, filled, slightly abrasive
Maximum air inlet pressure	6 bar
Dimensions, L x W x H	600 x 600 x 1.200 mm
Weight approx.	130 kg

 

DOPAG ELDO-MIX

• The DOPAG ELDO-MIX 101 is a solvent free gear metering and mixing system, used to handle low to medium viscosity multi component media such as epoxy resins, polyurethanes or silicones with mixing ratios between 100:100 and 100:10.Special configurations to process high viscosity media are also available.
• The DOPAG ELDO-MIX 202 is a solvent free gear metering and mixing system, used to handle low to medium viscosity multi component media such as epoxy resins, polyurethanes or silicones with a volumetric mixing ratio of between 100:100 and 100:5.Special configurations to process high viscosity media are also available.
• The DOPAG ELDO-MIX 303 is a solvent free gear metering and mixing system, used to handle low to medium viscosity multi component media such as epoxy resins, polyurethanes or silicones with a volumetric mixing ratio of between 100:100 and 100:2.Special configurations to process high viscosity media are also available. This system can be customized for individual customer needs and integrated without difficulty into automation cells.
• The DOPAG ELDO-MIX 401 T has been specifically designed for handling pasty two component media, including polyurethanes and epoxy resins, as well as for successfully processing micro ball filled materials.
• The DOPAG ELDO-MIX 603 is a solvent free gear metering and mixing system, used to handle low to medium viscosity multi component media, such as epoxy resins, polyurethanes or silicones. Special configurations to process high viscosity media are also available. The modular construction of the system has been designed for the highest possible flexibility

 

DOPAG VARIO-MIX

• The DOPAG VARIO-MIX A Series is a piston pump type metering and mixing system, used to process low to high viscosity, multi component materials such as epoxy resins, polyurethanes, silicones, and others. These materials may be unfilled, filled, as well as abrasive or moisture sensitive. The Vario Mix A system is available in two categories, A1 for small output or A2 for large output, and can be used in a variety of different applications. The Vario Mix is a custom configured machine platform. One of our application engineers would be pleased to assist with complete system configuration.
• The DOPAG VARIO-MIX A Series is a piston pump type metering and mixing system, used to process low to high viscosity, multi component materials such as epoxy resins, polyurethanes, silicones, and others. These materials may be unfilled, filled, as well as abrasive or moisture sensitive. The Vario Mix A system is available in two categories, A1 for small output or A2 for large output, and can be used in a variety of different applications. The Vario Mix is a custom configured machine platform. One of our application engineers would be pleased to assist with complete system configuration.
• The DOPAG VARIO-MIX S series is a piston pump type metering and mixing system, used to process precision shots of low to high viscosity, multi component materials such as epoxy resins, polyurethanes, silicones, and others. These materials may be unfilled, filled, as well as abrasive or moisture sensitive. The Vario Mix S system is available in two categories, S1 for small shot (output 1 to 90 ml) or S2 for large shots (output 20 to 200 ml) and can be used in a variety of different applications. The Vario Mix is a custom configured machine platform. One of our application engineers would be pleased to assist with complete system configuration.
• The DOPAG VARIO-MIX H is a Hydraulically Driven piston pump type metering and mixing system, used to process low to high viscosity, multi component materials such as epoxy resins, polyurethanes, silicones, and others. These materials may be unfilled, filled, as well as abrasive or moisture sensitive. The Vario Mix H system is can be used in a variety of different applications which require continuous high flow rate outputs. The Vario Mix is a custom configured machine platform. One of our application engineers would be pleased to assist with complete system configuration.

Vario Mix 1A
Vario Mix 2A
Vario Mix 1S
Vario Mix 2S
Vario Mix H
Vario Mix APD

DOPAG SILCO-MIX

• The DOPAG SILCO-MIX H200 has been specifically developed to handle two component liquid silicones during the LIM (Liquid Injection Molding) process with a fixed mixing ratio of 100:100.The components are fed, metered and mixed directly from original 200 liter size drums and are then delivered directly to the injection molding machine. The two components are fed directly from their original containers by hydraulically driven metering piston pumps that guarantee a constant mixing ratio. This concept ensures absolute synchrony of the metering pumps. The two components are kept separate until they enter the static mixer, where they are homogeneously mixed.
• DOPAG SILCO-MIX P1 Used with low volume runs and small shots, the DOPAG SILCO-MIX P1 was specifically developed for processing high viscosity two component adhesives and sealants with a mix ratio of 1:1. The material is supplied in 1 liter cartridges. Up to 0.7 ml per shot can be applied in a shot time of about 2 seconds. The control and supervision of the metering system is performed by an MR20 computer, which has an interface to the control of the injection molding machine. Optionally, electronic volume counters can be added to control and supervise the material flow.
• The DOPAG SILCO-MIX L200 has been specifically developed to handle two component liquid silicones during the LIM (Liquid Injection Molding) process with a fixed mixing ratio of 100:100.The components are fed, metered and mixed directly from original 20 - 80 / 200 liter size drums and are then delivered directly to the injection molding machine
• The DOPAG SILCO-MIX P20 has been specifically developed to handle two component liquid silicones during the LIM (Liquid Injection Molding) process with a fixed mixing ratio of 100:100.The components are fed, metered and mixed directly from original 20 - 80 liter size drums and are then delivered directly to the injection molding machine

Silco Mix H200
Silco Mix H200
Silco Mix P1
Silco Mix L200-30
Silco Mix L200-150
Silco Mix P20