PD44 Dispensing System A unique Patented Technology for Micro Dispensing Two-Component Materials

Application Exceptional Performance The PD44 is specifically designed to dispense small amounts of water thin to paste viscosity materials from 0.005cc’s to 5cc’s. The metering rods are matched with machined seals for improved seal life. There are no material hoses between the rod pump outlets and mixer inlet which eliminates potential ratio or shot size problems (phasing) due to hose expansion and contraction. PD44 Dispensing Systemfeatures • Specifically designed to accurately dispense shots of twocomponent epoxies, urethanes, silicone and most reactive resin systems • Improved low viscosity...

How it works Materials remain separate until injected into static mixer The patented PD44 valve features balanced inlet/outlet spool assemblies that do not displace material while shifting from the reload to the dispense position. This allows pressure feeding of the “A” and “B” components up to 1200 psi during reloading while isolating the materials from the mixer inlet. Upon shifting to the dispense position without any material displacement, an accurate volume of “A” and “B” components is injected into the disposable mixer inlet by rod displacement metering technology. Reload Spools shift to...

PD44 Valve Patented PD44 Metering Valves Metering Drives Meter, mix and dispense shots from 0.005 to 5 cc's and handle Manual control of shot size material ratios from 1:1 to 25:1. Pneumatically-driven valves have micrometer adjuster to easily set the desired shot size. The micrometer features a locking mechanism to fix the selected shot size. Metering Drive “A” and “B” Precision Metering Rods for accurate and repeatable volume ratio control Programmable Shot size control Linear actuator provides shot size control. Useful feature when a different programmable shot size is required. Machined Seals...

Controller Pneumatic controller Electric controller Used for Manual and Programmable Shot Size Control Used for Programmable Flow and Shot Size Sensors in the valve monitor the position of the spool assemblies and metering rods. These sensors interface with the control panel to assure proper valve operation. PD44 systems can help you save material and labour costs for a variety of dispensing applications, whether you are using manual, semi-automated or automated manufacturing processes. This free-standing table-top controller includes a NEMA 23 stepper motor for precise flow and shot control....

Systems Feed System Cartridge Feed Systems Transfer Pumps and Rams Reservoir Tanks Cartridges of various sizes can be placed in pressurized retainers to allow low to medium viscosity materials to transfer to the PD44 valve. Low to high viscosity materials can be pumped directly from bulk containers using pail and drum rams, transfer pumps and feed hoses as required. Various sized reservoir tanks can be used to transfer low to medium viscosity materials to the PD44 valve. Complete System PD44 with pneumatic controller, manual micrometer shot adjuster and dual one gallon transfer pump feed package....

Technical Specifications “A” and “B” Metering Rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A wide selection of standard size metering rods are available depending on the ratio and shot sizes desired. Custom sized metering rods can be machined to accommodate most material ratios. The standard construction of the main body is 303/304 stainless steel. The standard construction of the metering assembly is a nitrided tool steel rod and a nitrided tool steel tube. Optional materials include stainless steel rod with UHMW polyethene tube and a tungsten rod with UHMW polyethylene...

ABOUT GRACO Founded in 1926, Graco is a world leader in fluid handling systems and components. Graco products move, measure, control, dispense and apply a wide range of fluids and viscous materials used in vehicle lubrication, commercial and industrial settings. The company's success is based on its unwavering commitment to technical excellence, world-class manufacturing and unparalleled customer service. Working closely with qualified distributors, Graco offers systems, products and technology that set the quality standard in a wide range of fluid handling solutions. Graco provides equipment...