Graco Inc.

8900 Proportioner  Plural Component Fixed & Variable Proportioner

Handles two-component materials where one or both components are high-viscosity

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The 8900 Proportioner provides precise, positive displacement metering using double-acting cylinders. It is well-suited for handling two-component sealants, and is typically used with two-component materials where one or both components are high-viscosity.

Typical applications:

  • Sealants and adhesives for product assembly
  • Secondary seal for insulating glass
  • Polysulfide sealants for aerospace industry

Versatility and proven reliability

  • Dependable, production-proven operation
  • Rugged, reliable heavy-duty components
  • Fixed or adjustable ratio versatility
  • Continuous, on-demand or adjustable shot-size dispensing
  • Modular system configurations for customizing to suit your needs

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8900 Proportioner
Maximum system working pressure
2000 psi
13.8 MPa, 138 bar
Maximum air input pressure
100 psi
0.7 MPa, 7 bar
Main air inlet size (8900 Proportioner)
3/4 npsm(f)
3/4 npsm(f)
8900 Proportioner outlet size
Component A Pump
3/4 npsm(f)
3/4 npsm(f)
Component B Pump
3/4 npsm(f)
3/4 npsm(f)
8900 Proportioner inlet size
Component A Pump
3/4 npsm(f)
3/4 npsm(f)
Component B Pump
3/4 npsm(f)
3/4 npsm(f)
8900 Proportioner wetted parts
Carbon steel, stainless steel, zinc, black oxide, PTFE, fluoroelastomer, electroless nickel, aluminum, nylon
Carbon steel, stainless steel, zinc, black oxide, PTFE, fluoroelastomer, electroless nickel, aluminum, nylon