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Positive Displacement Dispensing Valves

Positive Displacement Dispensing Valves


PDV1000 Positive Displacement Auger Valve

PDV1000 Auger Valve

 

The PDV-1000 series of precision auger valves is suitable for all medium to high viscosity paste, epoxy, solder paste and other filled material. Capable of dispensing a minimum shot size of 0.020" (0.508mm), the PDV-1000 uses an auger servo-motor driven screw.

Operation

The PDV-1000 has zero dead space within the valve and can deliver accurate and repeatable dots and beads for any application, whether automated or manually operated.

The PDV-1000 is used in conjunction with the RVC900N controller.

The auger screw is manufactured from hardened stainless steel.

Features
  • Solder-paste dispensing
  • Microshots 0.020" (0.508mm) 0.00003cc
  • Abrasive materials
  • Flexible coupling from motor to screw
  • No dead space %u2013 high repeatability

RV5000DPM - Positive Displacement Auger Valve

RV5000DPM

The RV5000DPM valve is designed for continuous operation where cleaning or refurbishment of a valve is not desirable. A disposable Delrin%uFFFD auger screw is accessed through a hinged doorway and can be quickly replaced in seconds.

The RV5000DPM allows for easy maintenance and is suitable for abrasive materials and two-part fluids. Removing and replacing the auger maintains the valve's accuracy and increases the life of the valve by providing less wear-and-tear on the motor.  Three versions of the valve are available, 8, 16 and 32 pitch.

The model RV5000DPME is an encoder valve.

Operation

The RV5000DPM has zero dead space within the valve and can deliver accurate and repeatable dots and beads for any application, whether automated or manually operated.

The RV5000DPM is used in conjunction with the RVC900N controller.

The replaceable Archimedes auger screw is manufactured from Delrin%uFFFD

Features
  • Solder-paste dispensing
  • Microshots 0.010" (0.254mm) 0.000015cc
  • Abrasive (filled) materials
  • Motor reverse capability
  • No dead space - high repeatability
  • Replaceable wetted feed path

RVC900N Positive Displacement Auger Valve Controller

Screw Valve Controller

 

The RVC900N controls the PDV-1000 series of auger valves and the model RV5000DPM disposable cartridge auger valve. The controller is programmable for timed shots from a minimum of 0.01 seconds. Motor speed output is maintained and kept constant, compensating for any change in material viscosity.

An adjustable forward and reverse time/speed delivers a clean cut from the dispensing cycle.

The RVC900N supplies material pressure to the barrel, adjusted via a regulator and pressure gauge. The digital timer can accept time intervals from 0.01 seconds %u2013 99.99 seconds. A reverse timer and speed control sets the amount of controlled suck-back at the end of the dispense cycle.

The controller delivers accurate and repeatable dots and beads for any application, whether automated or manually operated.

 

Features
  • Simple to program
  • Eight stored programs
  • Auto or manual control
  • Constant motor speed
  • Adjustable forward and reverse speed
  • Adjustable forward and reverse time

VDP150 - Adjustable, 0.005 - 0.15cc

VDP150 - Volumetric Valve

The VDP150 plunger pump is a pneumatically operated positive displacement valve designed for dispensing constant volume shots of low to medium viscosity materials within 1%.  The VDP150 has two integral check valves to control the flow of material.

The model VC1195N is a suitable 4-way valve controller for the VDP150 double acting metering valve.

4-Way Valve Operation

The valve is cycled by applying air pressure to the air ports.  For low viscosity materials (less than 5,000cps) no fluid pressure is required, as the material is drawn into the displacement chamber by the plunger.  Low fluid pressure is required for medium viscosity materials of 5,000 - 20,000cps.

Shot sizes may be fine tuned by turning an adjustment control at the top of the valve.

Features
  • Positive displacement metering
  • Integral inlet/outlet check valves
  • Micrometer strokeadjustment to fine tune shot size

VDP100 - Adjustable, 0.1 - 0.9cc

VDP100 - Volumetric Valve

The VDP100 is an adjustable pneumatically operated positive displacement valve designed for dispensing constant volume shots of low to medium viscosity materials within 1%, such as oil and grease.  The VDP100 valve has a range up to 0.9cc.

The model VC1195N is a suitable 4-way valve controller for the VDP100 double acting metering valve.

4-Way Valve Operation

The valve is cycled by applying air pressure to the air ports.  Low fluid pressure is required for low to medium viscosity materials.

Shot sizes may be fine tuned by turning an adjustment control at the side of the valve.

Features
  • Positive displacement metering
  • Integral inlet/outlet check valves
  • Stroke adjustment 0.1 - 0.9cc

 

VDP305 - Adjustable, 0.5 - 5cc

VDP305 - Volumetric Valve

The VDP305 is an adjustable pneumatically operated positive displacement valve designed for dispensing constant volume shots of low to high viscosity materials within 1%, such as oil and grease.  The VDP305 valve has a range from 0.5cc up to 5cc.

The model VC1195N is a suitable 4-way valve controller for the VDP305 double acting metering valve.

4-Way Valve Operation

The valve is cycled by applying air pressure to the air ports.  Low fluid pressure is required for low to medium viscosity materials.

Shot sizes may be fine tuned by turning an adjustment control at the side of the valve.  .

Features
  • Positive displacement metering
  • Integral inlet/outlet check valves
  • Stroke adjustment 0.5 - 5cc
  • Ideal for high viscosity paste and grease

VBP117 - Volatile Fluids - Volumetric Valve

VBP117 - Volatile Fluidse

The VBP117 is designed for positive displacement dispensing and filling of volatile low viscosity fluids, such as battery electrolytes reagents and acids. The VBP117 is also suitable for lubrication applications. Operation is by a frictionless bellows. Teflon materials provide excellent resistance to chemical compositions.

An optional model VBP117-16 is available for heavier viscosity battery gel type fluids. An adjuster controls a volumetric range of between 1 and 7cc.

The model VC1195N is a suitable 4-way valve controller for the VBP117 double acting metering valve.

4-Way Valve Operation

The valve is cycled by applying air pressure to the air ports.  Low fluid pressure is required for low to medium viscosity materials.

Shot sizes may be fine tuned by turning an adjustment control on the valve.

Features
  • Positive displacement metering
  • Integral inlet/outlet check valves
  • Stroke adjustment 1 - 7cc
  • Ideal for volatile materials
  • Heavy duty performance

VC1195N - 4-way Valve Controller

4-way Valve Controller

The VC1195N is a 4-way valve controller that can be used to control one or two valves simultaneously. The controller is suitable for all valves in the brochure identified as requiring or optionally accepting a 4-way controller.

The VC1195N valve controller provides a continuous %u201Cvalve-off%u201D state and remains in this mode until a signal is received to switch to %u201Cvalve-on%u201D mode. This instruction can derive from a remote robotic device or by the foot switch provided.  When the timer is off, the valve will remain in %u201Cvalve-on%u201D state as long as the foot switch is pressed or to allow a robot to control the operation. When the timer is selected, a momentary pulse will activate the timer to open the valve for a programmed period and then close the valve automatically.

The VC1195N will deliver accurate and repeatable dots or beads for any application.

 

Features
  • Simultaneous control of two valves
  • Timing interval of 0.01 - 31 seconds
  • Fast response internal pneumatic solenoid

 

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Positive Displacement Dispensing Valves

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