Dot Dispensing Valve Systems
Last Updated: April 1, 2025
Description
Dot Dispensing Valve Systems are designed to provide precise fluid dispensing in the form of dots. These systems are capable of delivering controlled amounts of fluid with high accuracy, ensuring that each dot is consistent in size and volume. The systems are versatile and can handle a variety of fluid types, including those with different viscosities.
Working Principle
Dot Dispensing Valve Systems operate by using a pressure-controlled mechanism to dispense fluid through a nozzle. The system typically includes a pressure regulator and a solenoid dispense valve, which work together to control the flow of fluid. The pressure applied to the fluid reservoir forces the fluid through the tubing and out of the nozzle, where it is deposited as a dot. This method allows for high precision and repeatability, making these systems useful for applications requiring exact fluid placement.
Applications
Dot Dispensing Valve Systems are used in a variety of applications where precise fluid placement is critical. For example, they are commonly used in electronics manufacturing for applying adhesives or solder paste to circuit boards. They are also used in medical device manufacturing for dispensing precise amounts of reagents or other fluids onto test strips or other substrates.
Advantages over other Dispensing Valve Systems
One of the main advantages of Dot Dispensing Valve Systems is their ability to produce consistent dot sizes, which is crucial for applications requiring high precision. Unlike time-pressure systems, which can suffer from variability in dot size due to changes in pressure or fluid viscosity, dot dispensing systems maintain consistent output. Additionally, they offer high throughput and can operate at a high frequency, making them suitable for high-volume production environments.
Limitations
Dot Dispensing Valve Systems can have limitations related to the viscosity of the fluids being dispensed. If the fluid is too viscous, it may not flow smoothly through the system, leading to inconsistent dot sizes. Additionally, maintaining the correct temperature and pressure is essential to ensure optimal performance, which can be challenging in some environments.
Considerations
When considering Dot Dispensing Valve Systems, it is important to evaluate the initial costs, which can be higher than other dispensing systems due to the precision components required. Operating expenses may also be higher if the system requires frequent calibration or maintenance to maintain accuracy. Durability is generally high, but the system's accuracy can degrade over time if not properly maintained. Replacement and maintenance costs should be factored into the overall cost of ownership, as these systems may require periodic replacement of components such as nozzles or valves to ensure continued precision.
from Techcon
The TS9000 Series Jet Tech is a Piezoelectric driven, non contact dispense valve capable of handling fluid viscosities to 2 million Cps. Jet Tech offers a fast jetting action producing hundreds of accurate deposits less than one second. Every component of the valve was designed to the highest... [See More]
- Dispensing Application: Dot; Fill ("potting")
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Diaphragm
- Shot Size: 2.00E-6
from Nordson Corporation
10-30 VDC, min viscosity 50000 cps, max op pressure 5000psi [See More]
- Dispensing Application: Dot
- Material Feed: Continuous Feed
- Valve Dispensing Technology: Positive Displacement; Rod/Piston
- Inlet Pressure Range: 750 to 3500
from PVA - Precision Valve & Automation
The FCM100 is ideal for any low viscosity underfill, encapsulant, conformal coating, and micro dot or bead dispensing project. The FCM100 "propels" precise shots of fluid onto a substrate resulting in accurate patterns at a high robot speed as no in process z-axis adjustments are required. The... [See More]
- Dispensing Application: Bead; Dot; Fill ("potting")
- Shot Size: 8.30E-4
- Valve Dispensing Technology: Positive Displacement
- Media Viscosity: 1 to 20000
from Cammda Corporation
CAMMDA Corporation provides a range of Dispensing Tips/Dispensing Needles - available to suit every dispensing requirement. Precision cut stainless steel for general purpose use, molded polypropylene and flexible polyethylene tips allow dispensing in the most restricted areas. Taper tips provide for... [See More]
- Dispensing Application: Dot
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Needle or Spool
- Application: AdhesiveSilicone
from Nordson EFD
Nordson EFD's 754V aseptic dispense valve features a smooth fluid flow path that is free of any entrapment areas. FDA-compliant wetted parts make the valve suitable for CIP (Clean-In-Place) and SIP (Sterilize-In-Place) medical assembly processes. With a flow path free of entrapment areas, the 754V... [See More]
- Dispensing Application: Dot
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Diaphragm
- Shot Size: 5.00E-4 to 60
from Techcon
The TS9200D Jet Tech is a non-contact dispense valve capable of jetting fluid viscosities to 400,000 Cps. Jet Tech offers a fast jetting action producing hundreds of precise droplets in less than one second. The main feature of the valve is a single, easily replaceable diaphragm to eliminate dynamic... [See More]
- Dispensing Application: Dot; Fill ("potting")
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Diaphragm
- Syringe / Container Volume: 5 to 55
from PVA - Precision Valve & Automation
The JDX Jet Dispense Valve is an extremely fast, non-contact jet valve that precisely dispenses viscosities up to 400,000 cps, while its unique diaphragm design saves time and money. With the JDX, even difficult to work with fluids can be precisely dispensed in volumes as small as 10 nanoliters... [See More]
- Dispensing Application: Bead; Dot
- Shot Size: 1.00E-5
- Valve Dispensing Technology: Positive Displacement
- Media Viscosity: 1 to 400000
from Cammda Corporation
CAMMDA Corporation provides a range of Dispensing Tips/Dispensing Needles - available to suit every dispensing requirement. Precision cut stainless steel for general purpose use, molded polypropylene and flexible polyethylene tips allow dispensing in the most restricted areas. Taper tips provide for... [See More]
- Dispensing Application: Dot
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Needle or Spool
- Application: AdhesiveSilicone
from Nordson EFD
The 741MD Series MicroDot ™ needle valve dispenses very precise micro-deposits down to fractions of a microliter. Pneumatically operated and adjustable, it delivers superior fluid dispensing control. Ideal for automated assembly processes, the 741MD-SS valve ’s adjustable needle stroke... [See More]
- Dispensing Application: Dot
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Micro-Dispensing Valve; Needle or Spool
- Application: AdhesiveSilicone; Lubricants
from PVA - Precision Valve & Automation
The SVX Auger Valve is designed for processing micro volumes of material in precise, repeatable patterns. The SVX is ideal for dispensing all medium to high viscosity pastes, epoxies, and abrasive compounds in dot and bead patterns and can dispense dots as small as 0.005" in diameter*. [See More]
- Dispensing Application: Bead; Dot
- Media Viscosity: 25000 to 1.00E7
- Valve Dispensing Technology: Positive Displacement; Screw (Auger)
- Number of Components: Single Component
from Cammda Corporation
CAMMDA Corporation provides a range of Dispensing Tips/Dispensing Needles - available to suit every dispensing requirement. Precision cut stainless steel for general purpose use, molded polypropylene and flexible polyethylene tips allow dispensing in the most restricted areas. Taper tips provide for... [See More]
- Dispensing Application: Dot
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Needle or Spool
- Application: AdhesiveSilicone
from Nordson EFD
PICO ® P µlse ™ exchangeable, modular technology allows for a high level of customization with a wide array of individually maintained, serviceable parts. The non-contact jet valve system offers unparalleled speed and accuracy for your most challenging dispensing applications. [See More]
- Dispensing Application: Dot
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Micro-Dispensing Valve
from PVA - Precision Valve & Automation
The MV200 is a true positive displacement metering valve capable of dispensing small deposits of material in a highly accurate process. The deposit volume is determined by the valve's stroke adjustment setting and is not affected by variations in viscosity or material pressure. The MV200 is... [See More]
- Dispensing Application: Bead; Dot; Fill ("potting")
- Shot Size: 0.0015 to 0.0120
- Valve Dispensing Technology: Positive Displacement; Rod/Piston
- Media Viscosity: 1 to 1.00E7
from Cammda Corporation
CAMMDA Corporation provides a range of Dispensing Tips/Dispensing Needles - available to suit every dispensing requirement. Precision cut stainless steel for general purpose use, molded polypropylene and flexible polyethylene tips allow dispensing in the most restricted areas. Taper tips provide for... [See More]
- Dispensing Application: Dot
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Needle or Spool
- Application: AdhesiveSilicone
from Nordson EFD
Nordson EFD ’s PICO ® P µlse ™ exchangeable, modular jet valve technology dispenses with industry-leading accuracy and speed to apply very precise, repeatable micro-deposits at 500Hz continuous and bursts up to 1500Hz. The PICO P µlse delivers faster, more precise jetting... [See More]
- Dispensing Application: Dot
- Material Feed: Batch (Syringe)
- Valve Dispensing Technology: Micro-Dispensing Valve