Desiccant Bags & Cartridges
Single Tube Bags
Engineered for a wide range of applications, Flow-Dry® tube bags are manufactured in sizes that extend from 21mm to 50mm Outer Diameter and end seal widths from 20mm to 80mm. They are a cost-effective solution for numerous installations including integrated condenser dryers and small diameter receiver cans. End seam seals can utilize a straight seam, or may be tucked to narrow the width and allow for easy insertion into the condenser tube.Engineered for a wide range of applications, Flow-Dry® tube bags are manufactured in sizes that extend from 21mm to 50mm Outer Diameter and end seal widths from 20mm to 80mm. They are a cost-effective solution for numerous installations including integrated condenser dryers and small diameter receiver cans. End seam seals can utilize a straight seam, or may be tucked to narrow the width and allow for easy insertion into the condenser tube.
Cap Bags
Flow Dry Technology has incorporated proprietary product technology into its Flow-Dry® cap bags. They feature a molded plastic filter with a desiccant bag for a low cost solution to numerous integrated condenser-dryer applications.Flow Dry Technology has incorporated proprietary product technology into its Flow-Dry® cap bags. They feature a molded plastic filter with a desiccant bag for a low cost solution to numerous integrated condenser-dryer applications.
Cap bags include an exclusive Lip-Lock® seal ring that conforms to the inside diameter of the receiver can, forcing refrigerant to flow through the cap and out the bag. The bag material filters the refrigerant thus eliminating the necessity for an additional filter system. Flow-Dry cap bags seal inside diameters from 23mm to 30mm. For requirements outside the range of the standard product line, Flow Dry will collaborate with customers to form a customized design.Cap bags include an exclusive Lip-Lock® seal ring that conforms to the inside diameter of the receiver can, forcing refrigerant to flow through the cap and out the bag. The bag material filters the refrigerant thus eliminating the necessity for an additional filter system. Flow-Dry cap bags seal inside diameters from 23mm to 30mm. For requirements outside the range of the standard product line, Flow Dry will collaborate with customers to form a customized design.
Custom Bags
In addition to its extensive standard Flow-Dry® product line, Flow Dry Technology, Inc. also offers custom design services. Its engineers partner with customers to develop low cost solutions for nearly any automotive desiccant application.In addition to its extensive standard Flow-Dry® product line, Flow Dry Technology, Inc. also offers custom design services. Its engineers partner with customers to develop low cost solutions for nearly any automotive desiccant application.
Desiccant Cartridges for Receiver Dryers in TXV Systems
The Flow-Dry® cartridge is a revolutionary desiccant package for automotive air conditioning receivers. Its unique design eliminates loose fill and desiccant bags.
Fewer Components
The Flow-Dry cartridge reduces your operation to one part and one step. Desiccant filters and tracer wafers are all preassembled and sealed for maximum moisture protection in a climate-controlled environment at our facility. Consolidating this tedious, time-consuming task in advance streamlines your assembly and leaves you with one operation - drop the cartridge into the receiver.
Variable Fill Volumes
The patent-pending adjustable cartridge lid adapts to a range of different desiccant volumes and weights.
Reduced Tooling Costs
The Flow-Dry cartridge is a standard product that can accommodate a variety of can sizes due to its unique Lip-Lock® seal ring. This eliminates purchasing expensive custom tooling for each of your applications.
Various Retention Methods
Simple, inexpensive methods such as bead upsets or pal-nuts can be utilized to retain the Flow-Dry cartridge in your receiver dryer can.
Easy Automation
The rigid structure of the Flow-Dry cartridge allows for labor reduction using simple pick and place automation.
Lower Moisture Levels
The Flow-Dry cartridge has a unique design that protects it from gaining moisture during your assembly process. It can be exposed up to 10 times longer than conventional bags and loose fill before exceeding moisture specifications. The result is lower outgoing moisture levels, helping you meet more stringent customer demands.
Less Cost
Lower ongoing investment in floor space, loose fill equipment, inventory and purchasing administration make Flow-Dry cartridges your most economical choice.
Flow-Dry® Cartridge With Side-Out Lid
Developed for customers with small diameter (30-40mm) dryer cans, Flow Dry now offers a side-out lid design that adapts the desiccant cartridge for easier assembly by the dryer manufacturer. This design utilizes a specially molded lid which directs the flow of refrigerant from a center tube design through the cartridge and out the top to an off-center connection. For impacted aluminum cans, the side out connection reduces cost and utilizes available area on an impacted or machined dryer cap.
Desiccants Bags for Accumulator CCOT Systems
The Flow-Dry® line of packaged desiccants from Flow Dry Technology, Inc. is engineered to deliver the highest drying capacity for any given application without sacrificing cost effectiveness or system operating reliability.
Saddle Bags
Flow-Dry® saddlebags are offered in four standard styles to meet end users' needs. For special applications, custom design services are also readily available. Currently, Flow Dry is tooled to produce Delphi-style 50, 80, 100, 120 and 240 gram models.
Snap-On Bags
The Flow-Dry® snap-on bag is the leader in cost-effective, high-performance desiccant containment bag technology. It features a unique design that installs easily in less than 5 seconds without tag ties or wire straps. Despite rigorous vibration, the Flow-Dry snap-on bag maintains its position and integrity. It has a proven track record of superior field performance in sump, side out and bottom type J-tube filter accumulators.
Materials
Flow-Dry® desiccant bags can be manufactured from a wide range of materials. Felt from 4 1/2 oz.- 11oz. and Cerex PBN for anti-thumping within a system are commonly used and universal to most applications.
Desiccants
Flow-Dry® packaging equipment is designed in-house by Flow Dry Technology process engineers. Highly reliable and adaptive, Flow-Dry desiccant bag packaging equipment can provide a package with any available desiccant, silica gel or other specified drying material. Although XH-7 and XH-9 from UOP are the most commonly used desiccants for automotive applications, packages can also be provided to meet application specifications using a variety of desiccant manufacturers including UOP, Zeochem, Grace, or ATOFINA.
Tracer Wafers™
Tracer dyes are used to detect leaks in automotive a/c systems. The simplest method to install the dye into the system is to have Flow Dry install it into the desiccant bag. This eliminates a second part number and reduces the possibility of missed installation and contamination.
Testing
The proof is in the testing! Flow Dry engineers quality into every desiccant product and its extensive testing service verifies it. The result is higher product integrity, greater durability, superior performance ... and peace of mind.
Pressure Drop
Pressure drop testing is used to determine the amount of fluid flow restriction a receiver dryer or accumulator design creates. Less restrictive designs have the potential to create a higher performance a/c system. The desiccant package contained inside the receiver dryer or accumulator can create a restriction in the system and therefore increase the pressure drop of the system. Because pressure drop is a critical design requirement, Flow Dry utilizes pressure drop tests to aid in designing the highest performance desiccant packages on the market.
Vibration
Vibration testing is used to determine if a desiccant package is designed to withstand the punishment it will be subjected to in a vehicle. If the desiccant package is not designed properly, it could be damaged or cause damage to other components in the system. Flow Dry has the capability to test desiccant packages as installed in receiver dryers and accumulators to ensure long life without premature failure.
Permeability
The physical properties of the material used to fabricate desiccant bags are critical to ensure proper performance. The permeability of the bag material must be balanced to allow the desiccant exposure to the refrigerant, while at the same time containing any attrition of desiccant particles inside the bag. Because of their low cost and permeability properties, polyester felts have become the standard materials of construction for most a/c desiccant bags. The construction of the bag also affects permeability and filtration. Some desiccant bag fabricators form or stretch the bag material in the process of manufacturing; this distortion can weaken the material and reduce its filtration properties. Flow Dry fabricates its desiccant bags without stretching or deforming the bag material to ensure that the proper permeability rating is maintained. Extensive permeability testing is performed to verify that all bags have the proper permeability rating.
Loss on Ignition (LOI)
The industry standard test to measure the amount of water that has been adsorbed by the desiccant is the Loss on Ignition test. To perform this test, the desiccant must be heated for a specified period of time to bake out the water. The difference in the desiccant weight before and after heating is the amount of water the desiccant contained. LOI testing is performed on all incoming desiccant material; work-in-process and outgoing product to maintain the moisture content below specified levels.
Seam Strength
Along with vibration testing, seam strength testing is critical to ensure structural integrity of the desiccant package. An automated pull tester checks the strength of package welds. SPC data of the seam strengths is recorded and monitored to maintain proper process control.
Flow-Dry bags have less seam area (the area known to fail in perimeter seam welded bags) therefore, a more robust product. Accu-Weld® seams ensure containment for the life of the accumulator.
Attrition Resistant Design for Automotive Applications
The Flow-Dry desiccant bag design and manufacturing process retains the highest material integrity and does NOT "stretch" or "deform" the felt material. The Flow-Dry process results in a bag with greater filtering capability and NO "pin-holes" in the material. These holes have led to desiccant and particulate escaping from competitiors' bags and causing damage to a/c systems.