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The Honda wmp20xa - 220 gpm (2") chemical-resistant pump is available for purchase today.

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Honda WMP20XA - 220 GPM (2") Chemical-Resistant Pump
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Honda Water Pumps and Accessories
Model: WMP20
 (Based on expert analysis, manufacturer ratings and customer reviews)
4.7 out of 54.7 out of 54.7 out of 54.7 out of 54.7 out of 5
3 Reviews
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In-Stock In-Stock
Ships Friday, Jul 21st

Estimate Arrival
$549.00
Free Shipping on every Honda WMP20

  • Features
  • Specs
  • 3
    Q&A 
  • 3
    Reviews
  • Articles
  • Shipping
  • Accessories

Inlet Size
2"
Style
Chemical Pumps
GPM
220
Gallons
Engine
2" Multi-Purpose Water Pump
•Centrifugal, self-priming design

Commercial Grade 163cc Honda OHV GX160 4-Cycle Engine
•Reliable, technologically advanced & easy to start
•Provides excellent torque & fuel efficiency

Protected By Honda Oil Alert® Warning System
•Alerts you or shuts engine down if oil reaches an unsafe level
•Helps to prevent engine seizure due to a low oil condition

Thermoplastic Impeller & Pump Housing w/ EPDM Seals
•Designed for pumping industrial & agricultural chemicals
•Please see brochure/spec sheet for list of approved chemicals

Carbon-Ceramic Mechanical Seal
•Abrasion-resistant designed for extended wear

Isolation Mounted Engine & Pump
•Rubber feet minimize vibration for quieter operation

Heavy Duty Full Frame Protection
•Protects the pump and engine on all sides

EPA Approved & CARB Compliant

3-Year Residential & Commercial Warranty


Engine
Engine Brand
Honda GX
Starting System
Recoil Start
Engine Cycles
4-Cycle
Low Oil Shutdown
Yes
Continuous Operation
Yes
Fuel Tank Size
0.825 Gallons
Consumer Engine Warranty
3 Years
Commercial Engine Warranty
3 Years
Pump
Gallons Per Minute
220 Gallons
Inlet Diameter
2"
Outlet Diameter
2"
Self Priming
Yes
Pump Head Material
Glass-Reinforced Polyester
Mechanical Seal Material
Ceramic Carbon
Impeller Material
Plastic
Handles Solids
No
Suction Head
26 Feet
Total Head Lift
105 Feet
Maximum PSI
45
Submersible
No
Accessories
Tool Kit
No
Strainer
Yes
Float Switch
No
Hose
Sold Separately
Hose Couplings
No
Hose Bands
Yes
Lifting Hook
No
Wheel Kit
No
Overview
Made in USA
No
Weight
56 Pounds
Product Length
20.5 Inches
Product Width
15.7 Inches
Product Height
17.7 Inches
Consumer Warranty
3 Years
UPC
408720000933
Model
WMP20
Subject: Store ID: Product ID: Data Category: Brand Category:

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  3 Questions
Q: How long will it run on a tank of gas?
by Brent from Alabama on November 08, 2016

A: That's a hard question to answer Brent and there really isn't a way to gauge it. Run times are based on how easy or how hard the engine is running. If you're pumping a short distance with minimal head lift, you may see about 2 to 3 hours of run time, but if you're pumping very long distances and requiring a lot of lift, that may dwindle to 60 - 90 minutes of run time. You might equate it to how you drive your car? If you accelerate fast and brake the same and often, your gas mileage suffers. It's the same with any gas powered piece of equipment. The harder you work it, the less run time you will realize.
If you have any other questions, please let me know.
by Jim, Product Expert
Q: will this pump handle brine solution used on highways in the winter and last more than 1 season of use .
by Philip B from Virginia on November 12, 2014

A: Thank you for your interest in Water Pumps Direct. Please see the below list of approved chemicals for the Honda WMP20XA Pump. If you have additional questions on chemicals not listed, please contact Honda tech support at 770-497-6400.

WMP20XA Approved Pumping Applications
Industrial Chemicals

Acetic Acid, 20%
Aluminum Sulfate Ammonium
Nitrate
Ammonium Sulfate
Barium Sulfate
Borax (Sodium Borate)
Calcium Chloride*
Citric Acid
Copper Sulfate
Detergents (general)
Ethylene Glycol
Fatty Acids
Ferric Nitrate
Ferric Sulfate
Ferrous Sulfate
Formaldehyde, 40%
Glycerine (Gycerol)
Lactic Acid
Lead Acetate
Magnesium Chloride
Magnesium Nitrate
Magnesium Sulfate
Maleic Acid
Nickel Chloride
Nickel Sulfate
Oleic Acid
Phosphoric Acid, 0-80%
Potassium Carbonate
Potassium Chloride
Potassium Nitrate
Potassium Sulfate
Soaps (neutral)
Sodium Acetate
Sodium Bicarbonate
Sodium Bisulfate
Sodium Carbonate, 10%
Sodium Chlorate
Sodium Chloride
Sodium Nitrate
Sodium Silicate
Sodium Sulfate
Stearic Acid
Sulfuric Acid, 0-29%
Tartaric Acid
Vinegar
Water (clear)
Water (salt)
Zinc Sulfate
* Temperature does not exceed 27°C (80°F).

Agricultural Chemicals
Aatrex
Amiben
Ammonium Thiosulfate
Avenge
Banvel
Basagran
Bicep
Bladex
Dual
Eradicane
Extrazine
Larsban
Lasso
URAN Solutions
Modown
N-Serve 24
Phosphoric Acid Solutions
Poly-N
Ranger
Round-Up
Sutan
Treflan
Vernam

• Do not use the WMP20XA for pumping liquids for human consumption.
• After each use, drain the pump housing into a suitable container and flush with fresh water.
• The temperature operating range of the pump is between -7 and 54°C (20 and 130°F)
by Jim, Product Expert
Q: Can i reduce the gpm from 220. We need a chemical pump for acid and this is the only one I can find. I only need about 30 gpm
by Terrr from Missouri on August 26, 2014

A: There is no problem installing a ball valve on the discharge to reduce the flow from 220GPM to your required 30GPM.
The only precautions to consider are:
1) Don't completely shut off the flow for more than a couple of minutes because the water will slowly heat up in the pump housing and can eventually get hot enough to cause damage. But simply stopping the flow
(dead-heading) briefly for a short period (a couple of minutes) is no problem. You can restrict the flow as much as you want long term, as long as a small amount is allowed to flow, just to keep the pump cool (even 1 gpm is enough).
2) Never drive over the discharge hose, but this is especially important if a valve is installed at the end of the hose and the pump is dead-headed.
Doing so can force water back into the pump (simple hydraulics) causing damage to the pump.
3) If the valve is installed directly on the pump, it needs to be very light PVC (or similar) without any long sections of pipe between the discharge port and the valve. A heavy valve or a valve rigidly installed using a section of pipe between the valve and the pump may cause the discharge elbow and/or pump housing to break. If the valve is heavy and/or not attached directly on the pump, it's best to run a section of flexible hose between the pump and the valve.
4) And lastly, never install a ball valve on or restrict the suction side of the pump. Doing this can result in cavitation damage.

by Jim, Product Expert
Honda WMP20 Reviews & Ratings
3 Reviews  Sort by 
  
Shawn
Purchased from Water Pumps Direct
Purchased 2/15/12
Total Helpful Votes
18 Helpful Votes
REVIEWED
FEB.
15
2012
4 out of 54 out of 54 out of 54 out of 54 out of 5
Honda Wmp20
Have 2 of them that pump chemicals. Last foreever as far as I can tell. Only scary part is that I have several other Honda motors and as we all know, Honda parts are bout 4 times higher than Briggs and Stratton, which also seem to last foreever. These particular pumps have been indestructable so far. Bout 8 yrs old-No maintenance. Just ordered another one to replace one of my off brand pumps that made it 3 yrs.
Was this review helpful?
183
Chad G.
Kimball, MI
Purchased from Water Pumps Direct
Purchased 12/9/14
REVIEWED
DEC.
30
2014
5 out of 55 out of 55 out of 55 out of 55 out of 5
Very Nice!!
We use this to fill our chloride tank, works great.
Chad Recommends This Honda Product
Was this review helpful?
44
Jason S.
Cole Camp, MO
Purchased from Water Pumps Direct
Purchased 2/3/16
REVIEWED
FEB.
27
2016
5 out of 55 out of 55 out of 55 out of 55 out of 5
Super Pump
Very good product. Pumps liquid like a champ.
Jason Recommends This Honda Product
Was this review helpful?
12
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