Graco Inc.

Merkur Air-Assist and Airless Packages  High Performance Fine Finish Pump Packages

Airless and air-assisted fine finish pump packages to improve productivity, reduce costs & lower emissions

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Achieve the right flows at the right pressures to fit all of your spraying needs. With four air motor sizes and 13 different models to choose from, the new and improved Merkur fine finish pump packages are designed to improve productivity, reduce costs, lower emissions and provide consistent, high quality finishes for all of your demanding applications.

The Merkur pump packages are proven to outperform and outlast other pumps in their class.

Merkur Air Assisted Cart Package with G40 Gun
  • Highest technology air motor on the market
  • Low air consumption for increased efficiency
  • Muffler provides low operating noise levels
  • External valve access allows for easy servicing and online replacement to minimize downtime
  • Operator Control Panel located at operator height for easy setting and monitoring
  • Throat seal and rod enclosure protects pumped material and wet cup from contamination but can be easily removed to monitor and service

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Merkur Displacement Pumps
Maximum Operating Temperature
160°F
71°C
Stroke Length
2.5 in
64 mm
Wetted Parts
Stainless Steel, Tungsten Carbide, UHMWPE, PTFE
Stainless Steel, Tungsten Carbide, UHMWPE, PTFE
Maximum Working Fluid Pressure
Model LW025A
3000 psi
207 bar, 20.7 MPa
Model LW050A
4500 psi
310 bar, 31.0 MPa
Model LW075A
4800 psi
331 bar, 33.1 MPa
Model LW100A
3600 psi
248 bar, 24.8 MPa
Model LW125A
2900 psi
200 bar, 20.0 MPa
Model LW150A
2400 psi
165 bar, 16.5 MPa
Fluid Inlet Size
Model LW025A
1/2 npt
1/2 npt
Model LW050A, LW075A, LW100A
3/4 npt
3/4 npt
Model LW125A, LW150A
1 npt
1 npt
Fluid Outlet Size
Model LW025A, LW050A, LW075A, LW100A
3/8 npt
3/8 npt
Model LW125A
1/2 npt
1/2 npt
Model LW150A
3/4 npt
3/4 npt

Merkur Non-Heated Spray Packages
U.S.
Metric
Maximum fluid working pressure
See Models table on page 6.
See Models table on page 6.
Maximum pump air inlet pressure
100 psi
(0.7 MPa, 7.0 bar)
Maximum gun air inlet pressure
100 psi
(0.7 MPa, 7.0 bar)
Ratio
See Models table on page 6.
See Models table on page 6.
Ambient air temperature range
35°F–120°F
(2°C–49°C)
Maximum fluid temperature
160°F
(71°C)
Sound data
See Technical Data in air motor manual 312796
See Technical Data in air motor manual 312796
Wetted parts
Displacement pump: Stainless steel, tungsten carbide with 6% nickel, UHMWPE, PTFE. Spray gun: See Manual 3A0149 (AA guns) or Manual 312145 (XTR guns). Fluid hoses: nylon. Suction assembly: stainless steel, nylon. Fluid filter: See manual 307273. Drain valve: stainless steel, nylon
Displacement pump: Stainless steel, tungsten carbide with 6% nickel, UHMWPE, PTFE. Spray gun: See Manual 3A0149 (AA guns) or Manual 312145 (XTR guns). Fluid hoses: nylon. Suction assembly: stainless steel, nylon. Fluid filter: See manual 307273. Drain valve: stainless steel, nylon

Merkur Electrostatic Spray Packages
U.S.
Metric
Maximum Fluid Working Pressure
See Models table in instruction manual
See Models table in instruction manual
Maximum Fluid Inlet Pressure(Bellows)
15 psi
0.1 MPa, 1.0 bar
Maximum Pump Air Inlet Pressure
100 psi
0.7 MPa, 7.0 bar
Maximum Gun Air Inlet Pressure
100 psi
0.7 MPa, 7.0 bar
Ratio
See Models table in instruction manual
See Models table in instruction manual
Ambient Air Temperature Range
35-120°F
2-49°C
Maximum Operating Temperature
120°F
49°C
Sound Data
See Technical Data in air motor manual 312796.
See Technical Data in air motor manual 312796.
Wetted Parts (displacement pump)
See manual 312792 (Merkur) or 312793 (Merkur Bellows).
See manual 312792 (Merkur) or 312793 (Merkur Bellows).
Wetted Parts (spray gun)
See manual 3A2495.
See manual 3A2495.
Wetted Parts (fluid hoses)
nylon
nylon
Wetted Parts (suction assembly)
stainless steel, nylon
stainless steel, nylon
Wetted Parts (fluid filter)
See manual 307273.
See manual 307273.
Wetted Parts (drain valve)
stainless steel, nylon
stainless steel, nylon

Merkur Heated Spray Packages
U.S.
Metric
Maximum fluid working pressure
See Models table on page 5
See Models table on page 5
Maximum pump air inlet pressure
100 psi
0.7 MPa, 7.0 bar
Maximum gun working pressure
100 psi
0.7 MPa, 7.0 bar
Ratio
See Models table on page 5.
See Models table on page 5.
Ambient air temperature range
35°F–120°F
(2°C–49°C)
Maximum fluid temperature
160°F
(71°C)
Sound data
See Technical Data in air motor manual 312796
See Technical Data in air motor manual 312796
Wetted parts
Displacement pump: Stainless steel, tungsten carbide with 6% nickel, UHMWPE, PTFE. Spray gun: See Manual 3A0149 (AA guns) or Manual 312145 (XTR gun). Fluid hoses: nylon. Suction assembly: stainless steel, nylon. Fluid filter: See Manual 307273. Heater: Stainless steel. Back pressure regulator: See Manual 306860. Back pressure valve: See Manual 307892. Drain valve: stainless steel, nylon
Displacement pump: Stainless steel, tungsten carbide with 6% nickel, UHMWPE, PTFE. Spray gun: See Manual 3A0149 (AA guns) or Manual 312145 (XTR gun). Fluid hoses: nylon. Suction assembly: stainless steel, nylon. Fluid filter: See Manual 307273. Heater: Stainless steel. Back pressure regulator: See Manual 306860. Back pressure valve: See Manual 307892. Drain valve: stainless steel, nylon