Graco Inc.

Monark 2-Ball Pump  Pneumatic 2-Ball Piston Pumps

Positive displacement, 2-ball piston design

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Designed for high production applications, Monark pumps provides uniform and easily controlled delivery with its reliable Monark air motor.

  • Drum and stubby length models available for mounting and application flexibility
  • Positive displacement, 2-ball piston design provides uniform and easily controlled delivery
  • Stainless steel or carbon steel models available to handle various fluids
  • Fluid return stanchion for circulation back to the pump
  • Ultra High Molecular Weight Polyethylene (UHMWPE) packings for extended pump life in abrasive fluids

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2:1 Ratio Monark Pump
U.S.
Metric
Ratio
2:1
2:1
Maximum fluid working pressure
200 psi
14 bar
Maximum air input pressure
100 psi
7 bar
Pump cycles per 1 gallon (3.8 liters)
11
11
Fluid flow at 60 cycles per minute
5.5 gpm
21 liters/min
Fluid inlet size
1–1/2 npt(f)
1–1/2 npt(f)
Fluid outlet size
1 in. npt(f)
1 in. npt(f)
Air inlet size
3/8 npsm(f)
3/8 npsm(f)
Weight
40 lb
18.14 kg
Maximum pump operating temperature
180F
82C
* Sound level at 100 psi, 15 cycles per minute
62.6 dBa
62.6 dBa
* Sound power level at 100 psi, 15 cycles per minute
71.8 dBa
71.8 dBa
Wetted parts
Supply and Return Tubes: Nickel-plated carbon steel Air Motor Base: Aluminum Displacement Pump: Refer to manual 307983
Supply and Return Tubes: Nickel-plated carbon steel Air Motor Base: Aluminum Displacement Pump: Refer to manual 307983
* Tested in accordance with ISO 3744

President and Monark Pumps
U.S.
Metric
Maximum fluid working pressure
Models 221075, 223586, and 243664: 3600 psi (25 MPa, 248 bar) Model 239327: 1500 psi (10.5 MPa, 105 bar)
Models 221075, 223586, and 243664: 3600 psi (25 MPa, 248 bar) Model 239327: 1500 psi (10.5 MPa, 105 bar)
Maximum air input pressure
Models 221075, 223586, and 243664: 120 psi (0.8 MPa, 8 bar) Model 239327: 100 psi (0.7 MPa, 7 bar)
Models 221075, 223586, and 243664: 120 psi (0.8 MPa, 8 bar) Model 239327: 100 psi (0.7 MPa, 7 bar)
Ratio
Models 221075, 223586, and 243664: 30:1 Model 239327: 15:1
Models 221075, 223586, and 243664: 30:1 Model 239327: 15:1
Fluid flow at 60 cycles per minute
Models 221075, 223586, and 243664: 1 gallon (3.8 liters) per minute Model 239327: 0.7 gallon (2.6 liters) per minute
Models 221075, 223586, and 243664: 1 gallon (3.8 liters) per minute Model 239327: 0.7 gallon (2.6 liters) per minute
Recommended pump speed
15 to 25 cycles per minute
15 to 25 cycles per minute
Weight
Model 221075: approximately 30 lb (14 kg) Model 223586 and 243664: approximately 24 lb (11 kg) Model 239327: approximately 18 lb (8 kg)
Model 221075: approximately 30 lb (14 kg) Model 223586 and 243664: approximately 24 lb (11 kg) Model 239327: approximately 18 lb (8 kg)
Wetted parts
Carbon Steel; Chrome and Zinc Plating; Tungsten Carbide; PTFE; Leather; AISI 304, 316, 420, 440, and 17–4 PH Grades of Stainless Steel
Carbon Steel; Chrome and Zinc Plating; Tungsten Carbide; PTFE; Leather; AISI 304, 316, 420, 440, and 17–4 PH Grades of Stainless Steel
Sound Pressure Levels (dBa) *measured at 1 meter unit
Input Air Pressures at 15 cycles per minute
Input Air Pressures at 15 cycles per minute
Air Motor
40 psi (0.28 MPa, 2.8 bar)
70 psi (0.48 MPa, 4.8 bar)
President
73.6 dB(A)
78.34 dB(A)
Monark
73.3 dB(A)
75.9 dB(A)
Sound Power Levels (dBa) *tested in accordance with ISO 9614–2
Input Air Pressures at 15 cycles per minute
Input Air Pressures at 15 cycles per minute
Air Motor
40 psi (0.28 MPa, 2.8 bar)
70 psi (0.48 MPa, 4.8 bar)
President
87.4 dB(A)
92.09 dB(A)
Monark
87.0 dB(A)
89.7 dB(A)