Patented Meter, Mix and Dispense Valve

For micro dispensing two-component materials

The Graco PD44 is specifically designed to dispense small amounts of water thin to paste viscosity materials from 0.005 cc’s to 5 cc’s. The metering rods are matched with machined seals for improved seal life.


  • Specifically designed to accurately dispense shots of two-component epoxies, urethanes, silicone and most reactive resin systems
  • Improved low viscosity spool design
  • Rod positive displacement metering
  • Precise mix ratio and shot repeatability
  • Eliminates cleaning and potential hardening of materials in the valve


Maximum Ambient Temperature
Maximum Operating Temperature
Maximum Outlet Fluid Working Pressure
2000 psi
Maximum Air Working Pressure
100 psi

Maximum Material Inlet Pressure

Metal Sleeves
1200 psi
Plastic Sleeves
400 psi
Supplied Air Requirements
1–3 cfm at 80–100 psi
Ratio Range (depending on metering rods selected)
1:1 to 25:1
Shot Size Range (depending on metering rods selected)
0.005 cc to 5.0 cc

Maximum Cycle Rate per minute (application dependent)

Micrometer PD44
60 cycles
60 cycles
Motor Driven PD44 (with standard Graco motor)
15 cycles

Dimensions (H x L x W), height to end of material inlet

Micrometer PD44
17.5 x 4.13 x 7.57 in
14.5 x 4.13 x 7.57 in
Motor Driven PD44 (with Graco motor)
17.5 x 4.13 x 7.57 in
4 – 14.75 in
Smallest Graco-supplied Feed System Assemblies
22.5 x 10 x 4 in
Largest Graco-supplied Feed System Assemblies
60 x 28 x 19 in


PD44 Metering Valve
14–15 lb
Valve stand only
8 lb
Feed Systems
4–175 lb

Sound Data, Sound data measured per standard ISO 11202 (1993) & ISO3746 (1995).

Sound Power Level
76.5 dBA
Maximum Sound Pressure
92.8 dB

Wetted Parts

PD44 Metering Valve
Hardened steel, 303/304, 404, UHMWPE, Tungsten, carbide, fluoroelastomer, EPDM, PTFE
Graco-supplied Feed System Hoses and Fittings
Mild steel, 303/304, PTFE, buna, polyethylene, polypropylene
Graco-supplied Tanks
Polyethylene, 303/304, mild steel