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Original price $945.00 - Original price $945.00
Original price
$945.00 - $945.00
Current price $945.00

PRESSUREPressure Washer Products are proud to offer the All-Flo 1/2" Kynar air diaphragm pump assembled in the United States of America for PWP for use specifically for use with soft wash chemicals. This is the only pump type on the market that will allow the operator to fully control the flow by using any nozzle size suitable for the job. The soft washer, chemical applicator, or roof washer can choose to use any nozzle orifice of 1.0 to wide open at 90. We recommend orifices from 15-35 in spray patterns ranging from 0 to 25 or sometimes 40 for best results.  

Viton diaphragms are not the best choice because of the following reasons according to all-flow:  Santoprene and other thermal plastic elastomers (TPE) will have a very long flex life due to the nature of the material. This is especially apparent when comparing them to FKM and PTFE diaphragms, which tend to have a low flex life. When selecting a diaphragm, chemical compatibility and the natural flex life should be considered. In most cases, a “B” rated Santoprene, or other TPE will outlast an “a” rated FKM (Viton) or PTFE diaphragm. This is because both the “A” and “B” rated diaphragms will normally fail due to their natural flex life before they experience chemical issues.

 PTFE should predominantly be used when a TPE is not chemically compatible with the process fluid, and FKM (Viton) is traditionally used for high-temperature applications that go above the other materials' maximum temperature limits. In short, Santoprene has a high flex life and FKM (Viton) has a very low flex life with flex life being its weakness. 

Most users pair this 17 GPM 'Cadillac of soft wash pumps' with a minimum 200' of 1/2" or 5/8" ID Flex Tech RT soft wash chemical hose, a 1/2" PVC ball valve or chlorine gun, a 4318S full frame Titan hose reel, and a 6540-17 (JROD) to allow the operator to reach about 25-50' on a roof.  

PWP recommends adding Slo Mo 'Original' soft wash surfactant to your recipe to save time and money.  When Slo Mo is added to your recipe, it 'grabs on' to the chemical and helps to work it into the vertical or horizontal surface. Some say that their mix is stronger. However, nothing can increase the strength of sodium hypochlorite. Sodium hypochlorite can only be made more effective by the addition of an excellent, biodegradable surfactant. Every Slo Mo user reports using fewer chemicals by making less passes and losing fewer chemicals to run-off. 

Before you consider any other brand other than aAll-Flo, ensure that you are buying a comparable pump. This 1/2" Kynar-bodied pump with Santoprene diaphragms is a whopping 17 GPM!

Use anti-seize when assembling the stainless components of this pump.

All-Flo's best-selling features are as follows: 

Fewest moving air valve distribution system parts. Results in ease of repair, less repair time, fewer parts resulting in reduced labor costs, inventoried parts as well as associated costs of inventoried parts.

Typically, improved performance – higher flow, greater suction lift, and improved efficiency.

Best warranty in the industry, quick delivery, local support (distributor network), and competitive prices. 

Air inlet ¼"
Liquid inlet 1/2" fpt
Liquid outlet 1/2" fpt


Maximum flow 17 GPM (34.0 pm)
Maximum air pressure 120 psi (8.2 bar) do not run this pump at 120 psi. Set the regulator at 80 psi on The air hose (AFRS).
Maximum solids 1/8" (3.2 mm)
Tax suction lift dry 10 ft (4.5 m)
Max temperature 150 (66) °f (°c)
Noise level (with muffler) 86 dba 

The main advantages of using an all-flow air diaphragm pump for soft washing, roof washing, chemical application, and transferring chemicals to your trailer or truck rig are listed as follows:

The All-Flo1/2" Kynar air diaphragm pump, AFKE05, is designed to handle the chemical needs of the soft washer. 

The 1/2" All-Flo pump is a perfect choice for residential and heavy-use commercial cleaning as it allows the operator to control the flow to prevent run-off, over or under-saturation, prevent plant kills or damage to delicate surfaces as well and save money on wasted chemicals.

 The All-Flo air-operated dual diaphragm pump is offered with a 5-year warranty.  

The operator can use the pump to clean and transfer the chemical to a truck or trailer rig instead of hand pumping or purchasing another pump to do the job.

The operator can use any applicator such as a 1/2" PVC ball valve, garden hose spray nozzle, or pressure washer gun connected to a minimum of 200' of 1/2"or 5/8" ID Flex Tech RT chemical hose to apply the chemical.

 This pump may provide the user with 25'-50' of flow reach!!!!!  Not bad for a pump with a 5-year warranty and full control over flow.

 All-Flo pump owners must use the correct regulator/filter (AFRS) to protect the pump.

 Install the regulator per the directions included with the packaging. The arrow on the regulator must point to the pump or the regulator will release air. Drain and clean the filter daily. Using the filter/regulator and gauge will prevent over-pressurization of the pump when set to 80 psi maximum. The filter should be cleaned daily. It can be installed anywhere on the air hose leading to the pump but closer to the compressor is best.

 We recommend installing one of our custom lengths of air hose (HA06-12) on your compressor and threading the other end into one of the open ports of the filter/regulator. Install a Motorguard M-30 or M-45 water separator available on Amazon.

The 1/2" All-Flo air-operated diaphragm pump requires a minimum of 6.5 gas horsepower air compressor. A higher HP compressor is also suitable for powering the pump. Using a lesser HP compressor will not allow for maximum output from your pump. This is critical for operators requiring all 17 GPM and those requiring maximum shooting or spray distance range. 

 ***Must drain the compressor tanks daily***Add one of our drain kits

We recommend using 1/2" or 5/8" ID chemical hose available in custom lengths of yellow Spiralite ag hose (AGY08-200.8s) and our blue, red, or yellow Flex Tech RT or blue or red Kuri Tec lightweight chemical hose. The Spiralite, Flex Tech RT, and Kuri Tec are *A* rated* for use will all soft wash chemicals. The most common length is a continuous 200' piece with crimped-on hose barbs in 316 stainless steels using one of our crimpers in-house.

Chemical hoses assembled by pressure washer products do not need or use hose clamps. Trouble picking a chem hose? The yellow ag hose is a long-life hose but is easiest to handle in 3/8” and 1/2”. It has a long break-in period. The 5/8” hose is a beast to handle when it’s new and heavy. You need a 5/8” hose for this pump. The yellow, blue, and red Flex Tech RT arrive ready to use with no break-in period. The hose has a very durable cover and does not stiffen up like the Kuri Tec and Ag hose when it is cold. The red and blue Kuri Tec hose is lighter in weight but tends to kink and stiffen up in cold temperatures. Always pull hoses several feet away from the ends to protect the hose end. Leave a wrap or two on the reel. The 200’ length of 5/8” hose is the most popular length of hose for a 1/2” pump. It is best to remove all the hose from your reel when running chemicals through your hose. Purchase a hose mender and two hose clamps to repair your sliced hose in the field.

Each All-Flo pump is backed by a 5-year warranty and tested before shipment.

 Your All-Flo double diaphragm pump is warranted to the original user against defects in workmanship or materials under normal use (rental use excluded) for five years after the purchase date. Any pump that is determined to be defective in material and workmanship and returned to All-Flo Pump Company, LLC, shipping costs prepaid, will be repaired, or replaced at All-Flo’s option.

 This warranty does not cover the failure of parts or components due to normal wear or damage or failure which in the judgment of All-Flo arises from misuse, abrasion, corrosion, negligence, accidental damage, faulty installation, or tampering. If All-Flo inspection discloses no defect in material or workmanship, repair or replacement and return will be made at customary charges.

All-Flo has made a diligent effort to accurately illustrate and describe its product in this literature. However, such illustrations and descriptions are not a warranty. The above express warranty is instead of and excludes all other warranties, express or implied, including, without limitation, merchantability, or fitness for a particular purpose.

Purchaser shall give written notice of any claim to All-Flo within ten days after discovery of any alleged defect. All-Flo shall not be liable for consequential damages, losses, delays, labor costs, or any other expense directly or indirectly arising from the use of the pump, its liability is expressly limited to the replacement or repair of any defective pump or an allowance of credit, therefore. The remedy and recovery of the purchaser on any claim against All-Flo, whether based on contract, this warranty, or any alleged negligence shall be as stated and limited herein and shall be exclusive.



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