Monkey Pumps

Reliable, Versatile and Proven Process Pumps

DNOW is a stocking distributor of Monkey Pumps high-quality process pumps for upstream, midstream, downstream and industrial applications. Monkey Pumps are designed for a wide range of applications, including precise metering, chemical injection, fluid transfer, lubrication, downhole chokes, hydrostatic testing and zero emissions requirements.

Whether you are in oil and gas production, petrochemicals, refining, pulp and paper or any other industry, Monkey Pumps are in stock at DNOW and ready for your next project.

Monkey Pumps from DistributionNOW
As a stocking distributor, DNOW proudly offers Monkey Pumps plunger pumps, piston pumps and solenoid pumps for a variety of energy and industrial applications. This page highlights a selection of Monkey Pumps products available from DNOW. Please contact our sales representatives for inquiries, quotes and questions.

M-Series Pneumatic Plunger Pumps

The M-Series is a range of pneumatic or gas-powered plunger pumps with standard 316 stainless steel construction and adjustable packing, designed without springs or diaphragms, and no lubrication necessary. They are ideal as chemical metering pumps, but also as hydraulic pumps opening downhole chokes, lubrication pumps for compressors and triplex/plunger pumps, hydrostatic testing for pipe spools and vessels, process pumps and much more.

The M-Series is also available as zero emissions pumps to help you meet your environmental goals.

M-15 Spider Monkey

  • Single motor, 5 plunger sizes
  • Flow rates up to 135 gal/d (511 L/d)
  • Pressures up to 2,000 psig (137 bar)
  • Zero emissions Green Banana option available

M-25 Chimp

  • Single motor, 5 plunger sizes
  • Flow rates up to 135 gal/d (511 L/d)
  • Pressures up to 12,000 psig (827 bar)
  • Zero emissions Green Banana option available

M-50 Orangutan

  • Single motor, 3 plunger sizes
  • Flow rates up to 375 gal/d (1,419 L/d)
  • Pressures up to 10,000 psig (689 bar)
  • Zero emissions Green Banana option available
Plunger Diameter 1/8 in. (0.32 cm) 3/16 in. (0.48 cm) 1/4 in. (0.64 cm) 3/8 in. (0.95 cm) 1/2 in. (1.27 cm)
Stroke Length 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm)
Stroke Rate 4 – 105 spm 4 – 105 spm 4 – 105 spm 4 – 105 spm 4 – 105 spm
Supply Range 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar)
Min. Injection Rate 0.28 gpd (1.06 L/d) 0.68 gpd (2.57 L/d) 1.36 gpd (5.15 L/d) 2.96 gpd (11.20 L/d) 4.80 gpd (18.17 L/d)
Max. Injection Rate 8.16 gpd (30.89 L/d) 17.45 gpd (66.06 L/d) 33.12 gpd (125.37 L/d) 78.96 gpd (298.90 L/d) 135.12 gpd (511.48 L/d)
Amplification Ratio 140 62 35 15 8
Max. Allow. Discharge Pressure 2,000 psig (137 bar) 2,000 psig (137 bar) 2,000 psig (137 bar) 2,000 psig (137 bar) 1,312 psig (90 bar)
Plunger Diameter 1/8 in. (0.32 cm) 3/16 in. (0.48 cm) 1/4 in. (0.64 cm) 3/8 in. (0.95 cm) 1/2 in. (1.27 cm)
Stroke Length 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm)
Stroke Rate 1 – 105 spm 1 – 105 spm 1 – 105 spm 1 – 105 spm 1 – 105 spm
Supply Range 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar)
Min. Injection Rate 0.07 gpd (0.26 L/d) 0.17 gpd (0.64 L/d) 0.34 gpd (1.28 L/d) 0.74 gpd (2.8 L/d) 1.20 gpd (4.54 L/d)
Max. Injection Rate 8.16 gpd (30.89 L/d) 17.45 gpd (66.06 L/d) 33.12 gpd (125.37 L/d) 78.96 gpd (298.90 L/d) 135.12 gpd (511.48 L/d)
Amplification Ratio 399 176 99 43 24
Max. Allow. Discharge Pressure 12,000 psig (827 bar) 12,000 psig (827 bar) 12,000 psig (827 bar) 6,450 psig (444 bar) 3,600 psig (248 bar)
Plunger Diameter 1/2 in. (1.27 cm) 3/4 in. (1.91 cm) 1 in. (2.54 cm)
Stroke Length 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm) 1 in. or 1/2 in. (2.54 cm or 1.27 cm)
Stroke Rate 1 – 85 spm 1 – 85 spm 1 – 85 spm
Supply Range 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar) 20 – 150 psig (1.38 – 10.34 bar)
Min. Injection Rate 1.5 gpd (6 L/d) 3 gpd (16 L/d) 5 gpd (19 L/d)
Max. Injection Rate 81 gpd (307 L/d) 230 gpd (871 L/d) 375 gpd (1,344 L/d)
Amplification Ratio 99 43 24
Max. Allow. Discharge Pressure 10,000 psig (689 bar) 6,450 psig (445 bar) 3,600 psig (248 bar)

D-Series Piston Pumps

D-50 Baboon
The Baboon is a pneumatic air- or gas-powered piston process pump, designed without lubrication needs, springs or diaphragms for easy maintenance. It’s also available as a zero emissions pump to help you meet your environmental goals.

  • Single motor design with 3 piston sizes
  • Flow rates up to 3,500 gpd (13,250 L/d)
  • Discharge pressures up to 3,600 psig (248 bar)
  • 316 stainless steel construction with ceramic-coated fluid end
  • Zero emissions Green Banana option available
  • Ideal for fluid injection, downhole chokes, process fluid transfer and hydrostatic testing
Piston Diameter 1 in. (2.5 cm) 1.5 in. (3.8 cm) 2 in. (5 cm)
Stroke Length 4 in. (10 cm) 4 in. (10 cm) 4 in. (10 cm)
Stroke Rate 4-20 spm 4-20 spm 4-20 spm
Min. Injection Rate 135 gpd (511 L/d) 335 gpd (1,268 L/d) 610 gpd (2,309 L/d)
Max. Injection Rate 700 gpd (2,650 L/d) 1,800 gpd (6,814 L/d) 3,500 gpd (13,250 L/d)
Max. Discharge Pressure 3,600 psig (248 bar) 1,500 psig (103 bar) 900 psig (62 bar)

E-Series Solenoid Pumps

E-Series solenoid metering pumps are rated ‘hot’ for continuous duty, with a highly reliable timing circuit and water resistance for demanding outdoor and indoor applications.

  • Manual control allows 10:1 stroke rate and 10:1 stroke length, with 100:1 total turndown ratio
  • High viscosity capacity
  • Leak-free, sealless liquid end
  • Reliable design with few moving parts and easily wall-mounted
  • Protected against voltage/current upsets and thermal overload and internally dampened to reduce noise

E-01 Black Howler

  • Flow rates up to 12 gpd (0.5 gph, 1.9 L/h)
  • Pressures up to 250 psi (17 bar)
  • PVDF head and valves

E-02 Red Howler

  • Flow rates up to 33 gpd (1.375 gph, 5.2 L/h)
  • Pressures up to 150 psi (10 bar)
  • 316 stainless steel head and valves
  E-01 Black Howler E-02 Red Howler
Flow Rate 12 gpd / 0.5 gph / 1.9 L/h 33 gpd / 1.375 gph / 5.2 L/h
Pressure Rating 250 psi (17 bar) 150 psi (10 bar)
Stroke Rate 250 spm 250 spm
Max Viscosity 1,000 cps 1,000 cps
Fluid Connection Tubing 0.25 in. ID / 0.38 in. OD 0.25 in. FNPT
Head and Valves Polyvinylidene fluoride (PVDF) 316 stainless steel
Seats and O-rings Tetrafluoroethylene (TFE) Tetrafluoroethylene (TFE)
Check Balls Ceramic Ceramic

Green Banana Zero Emissions Pumps

For applications where you must ensure zero emissions, Monkey Pumps offers a solution: the Green Banana option is available for all M-series plunger pumps and D-series piston pumps. Meet your emissions targets while you minimize waste gases and cut operating costs!

Features:

  • Completely eliminates exhaust gases
  • Environmentally friendly and economical
  • Supply pressure up to 1,000 psig
  • Captures exhaust up to 900 psig
  • Emissions captured from gas-powered pumps can pay for the pump's cost in 1-2 years
Monkey Pumps M-15 Spider Monkey Zero Emissions

About Monkey Pumps

Headquartered in Harvey, Louisiana, Monkey Pumps builds high-quality process pumps, pump skids and accessories. Their product portfolio includes plunger pumps, piston pumps and solenoid pumps to meter fluids across a range of industrial applications.

Less work, more monkey. www.monkeypumps.com

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