Lubricants Precision Dispensing Needle Valves

Description

Lubricants Precision Dispensing Needle Valves are designed to accurately regulate the flow of lubricants. These valves feature a slender, tapered point at the end of the valve stem, which is lowered through the seat to restrict or block the flow of fluid. They are particularly effective in controlling low flow rates with high precision.

Working Principle

The working principle of precision dispensing needle valves involves a fine-threaded stem and a large seat area that allow for precise resistance to flow. Fluid enters the valve, turns 90 degrees, and passes through an orifice that serves as the seat for a rod with a cone-shaped tip. This design enables the valve to control the flow into delicate gauges and other sensitive equipment, preventing damage from sudden fluid surges. The ability to make precise adjustments makes these valves useful for applications requiring gradual flow control or small flow rates.

Applications

Precision dispensing needle valves are used in a variety of applications, including the regulation of adhesives, silicones, chemicals, cleaners, paints, coatings, and food and beverage products. Specifically, they are employed in situations where high viscosity fluids, such as lubricants, need to be dispensed with precision.

Advantages over other Precision Dispensing Needle Valves

One of the key advantages of these valves is their ability to provide precise flow control, which is critical in applications where even minor deviations can lead to significant issues. The fine threading and large seat area contribute to their superior accuracy compared to other types of dispensing valves.

Limitations

A limitation of precision dispensing needle valves is that they may not be suitable for high flow rate applications due to their design, which is optimized for low flow rates. Additionally, the precision nature of these valves may require more frequent maintenance to ensure accuracy over time.

Considerations

When considering the use of lubricants precision dispensing needle valves, it is important to evaluate initial costs, which can be higher due to their specialized design. Operating expenses may also be influenced by the need for regular maintenance to maintain accuracy. Durability is generally high, but the precision components may require careful handling and periodic replacement to ensure consistent performance. Accuracy is a significant advantage, but it comes with the trade-off of potentially higher maintenance costs.

2 Results
MicroDot™ Dispensing Valve
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]

  • Application: AdhesiveSilicone; Lubricants
  • Material Feed: Batch (Syringe)
  • Dispensing Application: Dot
  • Number of Components: Single Component
Relius™ Handheld Dispense Valves
from Nordson EFD

Nordson EFD ’s Relius ™ line of portable fluid dispensers is easy to use and offer durable, fail-safe construction with less hand fatigue. Ideal for touchups, low-volume assembly, and field work, our handheld fluid dispensers are compatible with all Nordson EFD syringe barrels, pistons,... [See More]

  • Application: AdhesiveSilicone; FluxSolder; Lubricants
  • Material Feed: Batch (Syringe)
  • Dispensing Application: Bead
  • Number of Components: Single Component