Lubricants Positive Displacement Valves
Description
Lubricants Positive Displacement Valves are designed to precisely meter and control the flow of viscous fluids. These valves are capable of dispensing fluids in various forms such as beads, dots, or fills, ensuring consistent and accurate flow rates.
Working Principle
Positive displacement valves operate by trapping a fixed volume of fluid and then forcing it through the valve to achieve the desired flow rate. This mechanism allows for precise control over the amount of fluid dispensed, making them particularly useful for handling viscous fluids. The single-component construction of these valves minimizes weak points and reduces the risk of air ingress, which can lead to product hardening and system blockages.
Applications
These valves are commonly used in industrial assembly applications where precise fluid dispensation is critical. For example, they are employed in the application of adhesives and sealants, where consistent bead or dot sizes are necessary for product quality. They are also used in potting applications to fill components with precise volumes of material.
Advantages over other Positive Displacement Valves
Single-component positive displacement valves offer several advantages over multi-part devices. Their construction allows them to handle higher pressures and stresses associated with viscous fluids. Additionally, the reduced number of seams decreases the likelihood of air ingress, which can prevent product hardening and system blockages, thereby reducing downtime and maintenance.
Limitations
One limitation of these valves is their potential for clogging when handling certain types of fluids, especially if not properly maintained. The precision required in their operation also means that they may not be suitable for applications where fluid properties vary significantly.
Considerations
When selecting lubricants positive displacement valves, it is important to consider initial costs, which can be higher due to their specialized nature. Operating expenses may also be influenced by the need for regular maintenance to prevent clogging and ensure accuracy. However, their durability and precision can lead to long-term cost savings by reducing downtime and maintenance needs. Replacement and maintenance costs should be factored into the overall cost of ownership, as these can vary depending on the specific application and fluid characteristics.
from Valcor Engineering Corporation
The SV500 series dispensing pump is a solenoid operated piston driven pump that delivers a wide range of fluids with high precision. By combining the easily adjustable stroke of the pump with variable cycle rates, users have complete control of the volume and rate of dispense for specific... [See More]
- Application: AdhesiveSilicone; FoodBeverage; Lubricants
- Dispensing Application: Fill ("potting")
- Valve Dispensing Technology: Rod/Piston
- Dispense Rate: 0.1801
from Nordson EFD
The 725HF Series high flow piston valve fills small bottles, foil packs, and other packaging with absolute accuracy at up to 450 ml per second. Ideal for adhesives, cosmetics, creams, grease, lubricants, inks, and sealants, the 725HF is also used for potting electronics and applying braze pastes. [See More]
- Application: AdhesiveSilicone; Lubricants; Cosmetics, Creams, Inks
- Dispensing Application: Fill ("potting")
- Valve Dispensing Technology: Rod/Piston
- Dispense Rate: 27.02
from Valcor Engineering Corporation
The SV515 series dispensing pump is a solenoid operated piston driven pump that delivers a wide range of fluids with high precision. By combining the easily adjustable stroke of the pump with variable cycle rates, users have complete control of the volume and rate of dispense for specific... [See More]
- Application: AdhesiveSilicone; FoodBeverage; Lubricants
- Dispensing Application: Fill ("potting")
- Valve Dispensing Technology: Rod/Piston
- Dispense Rate: 0.0030
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
- Dispensing Application: Bead
- Valve Dispensing Technology: Rod/Piston (optional feature)
- Number of Components: Single Component
from Valcor Engineering Corporation
The SV525 series dispensing pump is a solenoid operated piston driven pump that delivers a wide range of fluids with high precision. By combining the easily adjustable stroke of the pump with variable cycle rates, users have complete control of the volume and rate of dispense for specific... [See More]
- Application: AdhesiveSilicone; FoodBeverage; Lubricants
- Dispensing Application: Fill ("potting")
- Valve Dispensing Technology: Rod/Piston
- Dispense Rate: 0.0120