USER MANUAL
Pre-Mix Wall Mounted Spray Unit
Model Numbers: SP-WL, SP-WLK, SP-WLV, SP-WL-AP and Related Units
Read All Instructions Before Operating Equipment
⚠️ WARNING
Read this manual completely and understand the machine before operating or servicing it.
- Read all instructions before installing or operating unit.
- Always wear appropriate personal protective equipment (PPE) when operating or servicing unit.
- Always follow all chemical safety precautions and handling instructions provided by the chemical manufacturer and Material Safety Data Sheet (MSDS).
- If this unit is modified or serviced with parts not listed in this manual, the unit may not operate correctly.
- Never point the discharge wand at yourself, another person, or any object you do not want covered in chemical.
- Always depressurize unit after use (as described in the After Use Instructions). Always store unit depressurized, with the discharge ball valve in the closed position.
- Do not exceed an incoming air pressure of 100 psi (6.9 bar).
- Do not exceed a fluid temperature of 100°F (37.8°C).
- Always flush unit when changing chemical products, as described in the After Use Instructions.
- Only use clean and dry air. Air must be filtered and free of moisture or pump life will be diminished. If needed, install an air dryer before unit.
- Do not use an air lubricator before the unit.
- Never use unit with hydrocarbons or flammable products.
This unit is available with several different configuration options. Use the following chart and example item numbers to identify specific configurations and item numbers.
| ITEM NUMBER | All-Poly Fittings? | Pump Seal Material | |||
|---|---|---|---|---|---|
| No | Yes | Santoprene (standard) | Viton (V) | Kalrez (K) | |
| EXAMPLES: | |||||
| SP-WL | x | x | |||
| SP-WLV-AP | x | x | |||
| MY UNIT IS: | |||||
PROTECT THE ENVIRONMENT
Please dispose of packaging materials, old machine components, and hazardous fluids in an environmentally safe way according to local waste disposal regulations.
♻️ Always remember to recycle.
Specifications and parts are subject to change without notice.
Options
Pump Seal Material
- Santoprene (standard)
- Viton (V)
- Kalrez (K)
Add bold option codes to item number as shown. For standard options, no option code is needed.
Examples:
- SP-WL (standard unit with Santoprene pump seals)
- SP-WLV (unit with Viton pump seals)
Requirements
- Compressed air requirements
- 40-80 psi (2.8-5.5 bar) with 2 cfm (56.6 l/min)
- Liquid temperature range
- 40-100°F (4.4-37.8°C)
- Chemical compatibility
- Chemical products used with this equipment must be formulated for this type of application and compatible with unit materials and pump seals. For more information on chemical compatibility, consult the manufacturer or MSDS for your product or contact our customer service department.
Specifications
| Power type | Compressed air |
|---|---|
| Chemical pickup type | Draws from pre-mixed solution |
| Number of products unit can draw from | One product |
| Suction line length/diameter | 8 ft. (2.4 m) hose with 3/8 in. (9.5 mm) inside diameter |
| Discharge hose diameter/length | 50 ft. (15.2 m) hose, with 3/8 in. (9.5 mm) inside diameter |
| Discharge wand/tip type | Polypropylene trigger handle with 25° fan tip |
| Output distance | 10-12 ft. (3.0-3.7 m) |
| Output volume | 2 gal/min (7.6 l/min) |
| Flow rate* | 2 gal/min (7.6 l/min) |
| Pump seals | Santoprene, Viton, or Kalrez |
*Dilution rates and flow rates given are based on chemical with viscosity of water and factory air pressure settings.
Installation Instructions
- Remove all components from packaging.
- Select desired area to mount the control box. Note: Mounting the control box at a height of 6 feet or less is recommended. The chemical suction line must reach the bottom of the chemical container. The bottom of the chemical container should not be positioned higher than the bottom of the control box.
- Attach the control box mounting feet to the back of the control box, using the four screws provided in the parts package.
- Mount the control box to the wall using four of the screws and plastic anchors provided in the parts package. Note: Use a 5/16 inch drill bit to drill holes for the plastic anchors.
- Mount the hose hanger in a convenient location using the remaining two screws and anchors provided in the parts package.
- Attach the discharge hose assembly to the discharge hose barb and secure it with the larger hose clamp provided in the parts package.
- Connect the air inlet hose barb provided in the parts package to the air inlet valve located on the side of the control box. Then attach a 3/8 inch I.D. air line from your air compressor to the air inlet hose barb, and secure it with the smaller hose clamp provided in the parts package.
Operation Instructions
- Follow all instructions from chemical manufacturer. Place the chemical suction line into a container of pre-mixed chemical solution.
- With the discharge valve in the closed position, open the air inlet valve.
- Point the discharge wand in a safe direction and open the discharge valve to begin spraying.
- To stop spraying, close the discharge valve.
After Use Instructions
Flushing and depressurizing the unit after each use is recommended.
- Place the chemical suction line into a container of water.
- With the unit running, open the discharge valve, and allow the unit to be flushed with fresh water thoroughly until all chemical has been discharged from the system.
- Shut off the air supply to the unit by closing the air inlet valve.
- Open the discharge valve to relieve any pressure remaining in the unit.
- Close the discharge valve after all pressure has been relieved from the unit. Store the unit with the discharge valve in the closed position.
Maintenance Instructions
To keep the unit operating properly, periodically perform the following maintenance procedures:
Note: Before performing any maintenance, ensure that the unit has been disconnected from the air supply and depressurized according to the "After Use Instructions" above.
- Inspect the pump for wear and leaks.
- Inspect all hoses for leaks or excessive wear. Make sure all hose clamps are in good condition and properly secured.
- Replace the filter located within the air regulator as needed. Clean by unthreading the air regulator bowl from the air regulator.
- Check the chemical suction line and strainer for debris and clean as needed.
- Drain your air compressor tank on a regular basis to help extend pump life. An air source with a high moisture content will accelerate pump wear. Note: If your air source has a high moisture content, you may wish to install a water separator before the unit.
Troubleshooting Instructions
- Check to ensure that the discharge hose is uncoiled properly, and that there are no kinks that could obstruct fluid flow.
- Check the air regulator bowl and air filter for debris such as water, oil, or rust particles. Clean by unthreading the air regulator bowl from the air regulator.
- If air passes through the pump without cycling, the pump needs to be replaced.
- Check for proper air pressure on the air gauge. The air regulator is factory set at 50 psi (3.4 bar). Operating range is 40 to 80 psi (2.8 to 5.5 bar) with 2 cfm (56.6 l/min).
- If the unit operates at a reduced pressure:
- Check the air compressor supplying the unit. If the pressure is less than 40 psi (2.8 bar), turn the unit off until the compressor can catch up.
- If the air supply is 50 psi (3.4 bar) or above, check the air gauge, which should read near 50 psi (3.4 bar). If the air gauge reads more or less than 50 psi (3.4 bar), adjust the pressure by turning the knob on the top of the air regulator.
- Check the chemical suction line and strainer for debris or damage. Clean or replace as needed. To prevent damage to the unit, the strainer must always be used.
Parts Diagrams - Units with Standard Fittings
Control Box Assembly
The control box assembly diagram shows a rectangular enclosure (control box) containing various components. Key parts visible include a pump bracket (BRKT-P56) mounted to the box, a pump unit (P56, P56K, or P56V), an air regulator (R25) with an attached air gauge (AG100), a ball valve (BVB14), and various fittings and hoses such as hose barbs (HB1438, HBFSS1238, HBSS1238), suction hose weight (SHW3), and a suction line strainer (STR14). Hoses like H14BL-F, H38BL-F, and H316CL-PV are also depicted, along with a poly box latch (PB-LTCH).
Hose and Zero Tip Foam Wand Assembly
Item Number: PSGA384-ST-HA38BL-50
Spray Gun Assembly
Item Number: PSGA384-ST
- ST2520SS: Spray tip
- PW12M14F4: Wand
- PSG12: Poly spray gun
- HBSS1238: Hose barb
50 ft (15 m) Hose Assembly
Item Number: HA38BL-50
- H38BL-F: Hose
- HBSS1238: Hose barb
Optional Components
Water Separator Assembly
Item Number: WSA-20CFM
- SN1414: Hex nipple
- SSU14: Stainless steel union
- WS-20CFM: Water separator unit
- AP14: Air plug
- SSC38: Screw band clamp
- HBSS1238: Hose barb
Parts Diagrams - Units with All-Poly Fittings
Control Box Assembly
This diagram shows the control box assembly with all-poly fittings. Key components include the control box, pump bracket (BRKT-P56), pump unit (P56, P56K, or P56V), air regulator (R25) with air gauge (AG100), ball valve (BVB14), and various fittings and hoses. Specific parts include hoses (H14BL-F, H38BL-F, H316CL-PV), suction hose weight (SHW3), foot valve (FV2), hose barbs (HBFSS1238, HBSS1238), poly box latch (PB-LTCH), hex nipple (SN1414), flange nut (SSSFN12), and bulkhead adapter (SSA14BKH).
Parts List
| ITEM NUMBER | DESCRIPTION |
|---|---|
| AG100 | AIR GAUGE - 1/8IN NPT - 0-100 PSI MARKINGS - DRY MODEL |
| BRKT-P56 | PUMP BRACKET- STAINLESS STEEL |
| BVB14 | BALL VALVE - BRASS - NICKEL PLATED - AIR INLET VALVE - 1/4IN FPT X 1/4IN FPT |
| EC14 | EAR CLAMP - OETIKER - STAINLESS STEEL - FOR 1/4IN HOSE |
| F38SS | FERRULE FOR 3/8IN HOSE - STAINLESS |
| FVPP-V | FOOT VALVE - POLYPROPYLENE BODY - NOT CUT TO SIZE - VITON CHECK VALVE - BLACK |
| FW12NPT | FLAT WASHER FOR 1/2IN NPT - STAINLESS - 0.88IN ID X 1.5IN OD X 0.05IN THK |
| FW12NPT-THK | FLAT WASHER FOR 1/2IN NPT - THICK - STAINLESS - 0.88IN ID X 1.5IN OD X 0.12IN THK |
| H14BL-F | 1/4IN ID BLUE HOSE-HYBRID TPE-AVAILABLE PER FT |
| H316CL-PV | 3/16IN ID 5/16IN OD CLEAR HOSE - PVC - AVAILABLE PER FT |
| H38BL-F | 3/8IN ID BLUE HOSE-HYBRID TPE-AVAILABLE PER FT |
| HB1438 | 1/4in MPT X 3/8in HOSE BARB (PLASTIC) |
| HBFSS1238 | HOSE BARB - STAINLESS STEEL - 1/2IN FPT X 3/8IN BARB |
| HBSS1238 | HOSE BARB - STAINLESS STEEL - 1/2IN MPT X 3/8IN BARB |
| HBSS1438 | HOSE BARB - STAINLESS STEEL - 1/4IN MPT X 3/8IN BARB |
| HBSSEL1814 | HOSE BARB - STAINLESS STEEL - ELBOW - 1/8IN MPT X 1/4IN BARB |
| P14-VS | PLUG - 1/4IN MPT WITH VIBRASEAL - COUNTERSUNK HEXAGON |
| P56 | PUMP WITH SANTOPRENE SEALS - INCLUDES HOSE BARBS, AIR FITTING, AND EXHAUST BARB |
| P56K | PUMP WITH KALREZ SEALS - INCLUDES HOSE BARBS, AIR FITTING, AND EXHAUST BARB |
| P56V | PUMP WITH VITON SEALS - INCLUDES HOSE BARBS, AIR FITTING, AND EXHAUST BARB |
| HBB14P | 1/4IN HOSE BARB-BRASS-FOR G57/P56 AIR FITTING WITH O-RING |
| HB5638 | HOSE BARB FOR P56 PUMP |
| HB5638K | HOSE BARB FOR P56K PUMP |
| HB5638V | HOSE BARB FOR P56V PUMP |
| PBA-16138 | POLY BOX ASSEMBLY - 16IN X 13IN X 8IN - GRAY POLYPROPYLENE - INCLUDES BRAND LABEL AND MOUNTING HARDWARE |
| PB16138-LID | POLY BOX LID - GRAY POLYPROPYLENE - FOR PBA-16138 - INCLUDES PB-GSKT ROPE SEAL |
| PB16138-BOX | POLY BOX - GRAY POLYPROPYLENE - FOR PBA-16138 |
| PB-FT | POLY BOX FOOT - GRAY POLYPROPYLENE - FOR PBA-12117 AND PBA-16138 |
| PB-LTCH | POLY BOX LATCH - GRAY POLYPROPYLENE - TWO PIECES ASSEMBLED - FOR PBA-12117 AND PBA-16138 |
| PB-PIN | STAINLESS STEEL HINGE PIN FOR PB16138 AND PB12117 |
| PSG12 | POLY SPRAY GUN WITH 2X 1/2IN STRAIGHT THREAD - GRAY HANDLE WITH RED CLIP - 316SS INTERNAL SPRING - INCLUDES 2X O-RING |
| PSGORV | O-RING FOR PSG12-VITON |
| PW12M14F4 | 1/2IN NPT AND 1/4IN FNPT WAND - BLACK UHMW - 4IN LONG |
| R25 | REGULATOR - AIR - 2X 1/4IN FPT AND 2X 1/8IN FPT PORTS WITH BOWL AND FILTER - NO GAUGE |
| AFR25 | AIR FILTER for R25 |
| ABR25 | METAL AIR BOWL for R25 |
| S1012-HL | SCREW - #10 X 1/2IN - STAINLESS STEEL - ROUND HEAD PHILLIPS - HILO THREAD |
| S1034-FH-HL | SCREW - #10 X 3/4IN - STAINLESS STEEL - FLAT HEAD PHILLIPS - HILO THREAD |
| SHW3 | SUCTION HOSE WEIGHT - 15/16IN ID X 1 1/2IN OD X 3 1/4IN LONG - PVC COATED STAINLESS |
| SN1414 | STAINLESS HEX NIPPLE 1/4 MPT X 1/4 MPT |
| SSA14BKH | BULKHEAD ADAPTER - STAINLESS STEEL - 1/4 IN. NPT X 1/4 IN. NPSM |
| SSC38 | SCREW BAND CLAMP - STAINLESS STEEL - FOR 3/8IN HOSE |
| SSSFN12 | SERRATED STAINLESS STEEL FLANGE NUT - 1/2 IN. |
| SSU14 | STAINLESS STEEL UNION- 1/4 INCH FP |
| ST2520SS | SPRAY TIP-25 DEGREE FAN-2.0 GPM-STAINLESS-1/4 MPT |
| STR14 | 40 MESH SUCTION LINE STRAINER 1/4 MNPT |
| WMA-HH | WALL MOUNT BRACKET ASSEMBLY - HOSE HANGER - INCLUDES MOUNTING HARDWARE |
| WMS14 | WALL MOUNT SCREW - #14 X 1 1/4IN - STAINLESS STEEL - HEX HEAD SLOTTED |
| WMS14A | WALL MOUNT SCREW ANCHOR -#14 X 1 1/4IN - PLASTIC - 5/16IN DRILL SIZE |
| WSA-20CFM | WATER SEPARATOR ASSEMBLY-20CFM-1/4IN FPT PORTS-INCLUDES AIR PLUG, UNION FITTINGS |
