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User Manual for DEMA models including: 925N Rotomolded Portable Foam Units, 925N, Rotomolded Portable Foam Units, Portable Foam Units, Foam Units

DEMA 925N-K (01) PDF MANUAL Manual-Hub.com


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DEMA 925N-K (01) 
USER MANUAL
MODEL NUMBER: 925N 925N-K 925N-V
AND RELATED UNITS
25 Gallon Air Operated Portable Foam Equipment English (Original Instructions)
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User Manual: Rotomolded Portable Foam Units | English
READ ALL INSTRUCTIONS BEFORE OPERATING EQUIPMENT

WARNING
Read this manual completely and understand the machine before operating or servicing it.
· Always wear protective clothing, gloves, and eyewear while operating or servicing unit.
· Avoid contact of cleaning agent with skin and eyes. If contact occurs, see Safety Data Sheet (SDS) sheet for further first aid measures.
· Follow safety instructions of chemical manufacturer SDS. · Never point the discharge wand at anyone. · Incoming air pressure cannot exceed 100 psi (7 bar). · After each use, relieve all remaining pressure in the
system by unplugging the air line from the unit and opening the discharge ball valve to prevent accidental discharge. · After relieving the pressure from the unit, store the unit with the ball valve in the closed position. · Be sure to flush the unit with fresh water for 5 minutes when switching from an alkaline to an acid or an acid to an alkaline. · Do not exceed a fluid temperature of 100°F (37°C). · 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 air lubricator before the unit.
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.

Specifications: Hose ............ 30 feet reinforced hose, 3/4 inch inside diameter
(9 meters reinforced hose, 19 mm inside diameter) Foam Output.................................... 20 to 45 gallons/minute
(75 to 170 liters/minute) Foam Distances ............................... 25 to 30 feet (7 to 9 meters) Liquid Temperature ........................ 40°F to 100°F (4.4°C to 37°C) Noise Level...................................... Average 79 dB(A) Discharge Wand Vibration Level ..... Maximum 2.5 m/s²
Dimensions: Length ....................................... 22 in (559 mm) approximately Width ........................................ 19 in (483 mm) approximately Height ....................................... 47 in (1194 mm) approximately Weight, including discharge hose and wand:
(Empty) ................................ 50 lbs (23 kg) approximately (Full) ..................................... 223 lbs (101 kg) approximately
Requirements: Compressed Air Pressure Requirements: Air regulator (R25) factory set at 50 psi (3.4 bar). Operating range is 40 to 80 psi (3 to 5 bar) with 5 to 10 CFM (141.64 to 283.30 l/min)
Chemical requirements: follow all instructions from chemical manufacturer.
Air Operated Double Diaphragm Pump Models Offered: P56: Polypropylene body with Santoprene diaphragm P56V: Polypropylene body with Viton diaphragm P56K: Polypropylene body with Kalrez diaphragm
Acceptable Products:
Alkaline cleaners, Caustic cleaners, Sanitizers, and Acids * D-Limonene may only be used with Kalrez pump * Chlorine may only be used with Viton or Kalrez pump
DO NOT USE: All hydrocarbons

Model Number: 925N, 925N-K, 925N-V and related units
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User Manual: Rotomolded Portable Foam Units | English
READ ALL INSTRUCTIONS BEFORE OPERATING EQUIPMENT

Operation Instructions:
1. Follow all instructions from chemical manufacturer. Fill the tank with water and the advised percentage of chemical concentrate.
2. With ball valve (HV60) in the closed position, plug an air line into the air fitting (AP25).
3. Slowly open the ball valve (HV60) completely.
4. Adjust the needle valve (NV14Y) to desired wetness or dryness of foam following the steps below: a. Close needle valve completely in clockwise direction. b. Open needle valve in counter-clockwise direction 3 complete turns. c. Continue to open valve in ¼ turn increments allowing 30 seconds between adjustments until proper consistency of foam is achieved.
After Use Instructions:
1. Flush the unit with fresh water for 5 minutes.
2. Disconnect the air line from the air fitting (AP25) and relieve any remaining pressure in the system by opening the discharge ball valve (HV60).
3. Close the ball valve (HV60) after all pressure has been relieved from the system.
Maintenance Instructions:
To keep your portable tank foamer operating properly, periodically perform the following maintenance procedures:
· Check the air pump (P56/P56K/P56V) for wear and leaks.
· Inspect hoses for leaks or excessive wear. Make sure all hose clamps are in good condition and properly secured.
· Replace filter (AFR25) in regulator (R25) as needed.
· Check the suction tube and screen for debris and clean as needed.
· Drain compressor tank on a regular basis to ensure proper operation of pump.
Troubleshooting Instructions:
· Check to ensure the discharge hose is uncoiled properly, and that there are no kinks that could obstruct fluid flow.
· Check air regulator bowl (ABR25) for debris such as water, oil, or rust particles. Clean by unthreading the air regulator bowl from the air regulator (R25).
· If needle valve (NV14Y) valve is open too far, the pump (P56/P56K/P56V) will cycle improperly due to lack of air pressure. If this occurs, reset needle valve as described in Operation Instruction #4.
· Make sure proper foaming chemical and concentration is being used.

· If air passes through the pump (P56/P56K/P56V) without cycling, the pump needs to be replaced.
· If foam solution backs up into air regulator bowl (ABR25), the check valve (CV38) needs to be replaced.
· If foam comes out wet, no matter where the needle valve (NV14Y) is positioned, the check valve (CV38) may need to be replaced.
· Check for proper air pressure on air gauge (AG100). Air regulator (R25) is factory set at 50 psi (3.4 bar). Operating range is 40 to 80 psi (3 to 5 bar) with 5 to 10 CFM (141.64
to 283.30 l/min)
· If the unit foams at a reduced pressure: o Check the air compressor supplying the unit. If the pressure is less than 40 psi, turn the foam unit off until the compressor can catch up. o If the air supply is 50 psi (3.4 bar) or above, check the AG100, which should read near 50 psi (3.4 bar). If the AG100 is more or less than 50 psi (3.4 bar), adjust the pressure by turning the knob on the top of the air regulator (R25). o If both of the above are okay, the stainless steel mixing mesh (SS-MESH) could be plugged. Remove and clean it by following the instructions below: 1. Be sure the foam unit is not plugged into an air
supply and be sure to relieve all stored pressure in the unit by having the ball valve (HV60) in the open position. 2. Remove the stainless adaptor (SSA12) from the tee fitting (SST12HB38). 3. Remove the screen and the mixing mesh from inside the tee fitting (SST12HB38). 4. Clean any particles from the mixing mesh and the screen.
5. Replace the mixing mesh and then the screen into the back of the tee and screw the stainless adaptor back into the tee. It is recommended to use a pipe thread sealant when reinstalling
the stainless adaptor back into the tee fitting (SST12HB38). If the mixing mesh has a lot of foreign particles in it, make sure the strainer (STR38-IL) is still in place.
· Check for plugged strainer (STR38-IL). Replace strainer if necessary. Strainer must be used.

Model Number: 925N, 925N-K, 925N-V and related units

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User Manual: Rotomolded Portable Foam Units | English
READ ALL INSTRUCTIONS BEFORE OPERATING EQUIPMENT
TANK ASSEMBLY ITEM NUMBER: TANK-25N-A

DFP7
(see parts list
for color opons)

TANK-25N
COT FWAX15 W15

FWAX15 AS1-VS SSP12 SSAXLE20.5

DP-A

CST3SS-L

CST3SS

PVCV34FM

HOSE AND WAND ASSEMBLY ITEM NUMBER: SSWA38-HA30
ZERO TIP FOAM WAND ASSEMBLY ITEM NUMBER: SSWA38
HBSS1234 HV60 HHSB1238 W387

30 ft (9 m) HOSE ASSEMBLY ITEM NUMBER: H34-30

FAN TIP FOAM WAND ASSEMBLY ITEM NUMBER: PWA34-ST
HBSS1234 HV60 SN1212 PW10 ST80200

H34B-H
(Available per ft.)
HBSS1234
SSC34

ANTI-KINK SPRING ASSEMBLY ITEM NUMBER: AKSS34
AKSS34-P AKSS-HPC

Model Number: 925N, 925N-K, 925N-V and related units
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User Manual: Rotomolded Portable Foam Units | English
READ ALL INSTRUCTIONS BEFORE OPERATING EQUIPMENT

PLATE ASSEMBLY ITEM NUMBER (Santoprene pump): PA-PF34 ITEM NUMBER (Kalrez pump): PA-PF34K ITEM NUMBER (Viton pump): PA-PF34V
Plate - Inside View

P56, P56K, or P56V P56-BRKT

P56-BRKT-SCREW HBSSEL1438
NV14Y R25 AG100

HBSSEL1438 HBSSEL1814 HBSS1438 SSC38 SST12HB38
EC14-2 SSC38 CV38

BPS-58SO
BPS-58SO STR38-IL
HHPB3414 SSC38 HBSSEL1438

Plate - Back View

NV14Y SSA14 AP25
FWP12
HBSS1234

PVCV34FM

OPTIONAL COMPONENTS

WATER SEPARATOR

30 ft (9 m) AIR HOSE ASSEMBLY

ITEM NUMBER: WS-20CFM ITEM NUMBER: AH30

Model Number: 925N, 925N-K, 925N-V and related units
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User Manual: Rotomolded Portable Foam Units | English

READ ALL INSTRUCTIONS BEFORE OPERATING EQUIPMENT

ITEM NUMBER AG100 AH30 AHB-3816 AKSS34
AKSS34-P
AKSS-HPC AP25 AS1-VS
AW516 B8X58 BPS-58SO BPS-SSR COT CST3SS CST3SS-L CV38 DFP7
DFP7-C
DFP7-F
DFP7-PIN DFP7-C-BL DFP7-C-GN DFP7-C-RD DFP7-C-YL DP-A
DP
DP-G DP-INSERT EC14-2 EC75 F34SS-L FW38X78 FWAX15 FWP12 FWP14 H14B-H H34B-H H38B-H HBSS1234 HBSS1438 HBSSEL1438 HBSSEL1814

DESCRIPTION 1.5 INCH DRY MODEL 20 DUAL SCALE GAUGE 30 FT. AIR HOSE WITH QUICK CONNECT FITTINGS ALLEN HEAD BOLT 3/8 -16 SS ANTI-KINK SPRING FOR 3/4 INCH HOSE WITH PIN SS ANTI-KINK SPRING FOR 3/4 INCH HOSE ANTI-KINK STAINLESS STEEL HITCH PIN CLIP PLUG 1/4 NPTM AIR FITTING - BRASS 1/4-20 X 1/2 PHIL TRUSS MACH SCREW 19-8 W/516 ORANGE VIBRASEAL PATCH 5/16 LONG ARM HEX KEY HARD #519011 8-15 X 5/8 inch PHIL FLAT TY-A 316 S.S. Back Panel Screw - 5/8 inch with Stand Off 1/4 INCH PUSHNUT BOLT RETAINER STAINLESS STEEL 1/8 X 1 COTTER PIN 18-8 S/S 3in S.S. SWIVEL CASTER WITHOUT LOCK 3in S.S. SWIVEL CASTER WITH LOCK PVC CHECK VALVE 3/8 BARBS - SS SPRING 7 INCH HINGED CAP ASSEMBLY - INCLUDES BLACK CAP, LID FLANGE AND HINGE PIN 7 INCH FILL CAP POLYPRO BLACK 7 INCH TANK LID FLANGE POLYPRO HINGE PIN FOR DFP7-C & DFP7-C 7 INCH FILL CAP POLYPRO BLUE PANTONE 7 INCH FILL CAP POLYPRO GREEN PANTONE 7 INCH FILL CAP POLYPRO RED PANTONE 7 INCH FILL CAP POLYPRO YELLOW PANTONE DRAIN PLUG ASSEMBLY INCLUDES DRAIN PLUG & GASKET FRONT DRAIN PLUG FOR PORTABLE UNIT POLYPRO FKM LATHE CUT 60 DUROMETER FKM 304 STAINLESS DRAIN PLUG INSERT OETIKER CLAMP 13.8 OETIKER CLAMP-12/04/07 SS CRIMP FERRULE 1.90inches X 1.5 inches LONG FLAT WASHER 3/8X7/8 X.050 FLAT AXLE WASHER 7/8 ID X 1.5 OD X 0.05 THK SSFW C-816 1/2in SS WASHER 1/4 INCH BLUE HOSE - Available per ft. 3/4 INCH BLUE HOSE - Available per ft. 3/8 INCH BLUE HOSE - Available per ft. STAINLESS HOSE BARB 1/2 X 3/4 STAINLESS HOSE BARB 1/4 MPT X 3/8 BARB S.S. HOSE BARB ELBOW 1/4 INCH NPT X 3/8 HOSE BARB 304 S.S. ELBOW 1/8 INCH NPT X 1/4 INCH HOSE BARB

HHPB3414 HHSB1238 HV60 NV14Y
NV14Y-HNDL P56
P56K
P56V
20756103B HB14P HB5638 HB5638K HB5638V P56-BRKT P56-BRKT-SCREW PLPF PLPF-PIN PVCV34FM PW10 R25 AFR25 ABR25 S142058-VS
S5161812 SN1212 SSA14 SSAXLE20.5
SSC38 SST12HB38
SS-MESH SSST SSP12 ST80200 STR38-IL TANK-25N TW916 W15 W387
WS-20CFM

HEX HEAD POLY REDUCER BUSHING 3/4 X 1/4 HEX HEAD S.S. REDUCER BUSHING 1/2in X 3/8 1/2in STAINLESS BALL VALVE - w/ WELDED NUT FLOW CONTROL VALVE - INCLUDES BLACK KNOB KNOB FOR 2839-1/4 NEEDLE VALVE 5700 PUMP WITH SANTOPRENE SEALS - INCLUDES HOSE BARBS, AIR FITTING, AND AIR PORT 5700 PUMP WITH KALREZ SEALS - INCLUDES HOSE BARBS, AIR FITTING, AND AIR PORT 5700 PUMP WITH VITON SEALS - INCLUDES HOSE BARBS, AIR FITTING, AND AIR PORT Polypro G57 Air Port x HB Straight, w/ Viton o-ring 1/4in BRASS HB AIR FITTING /G57/P56 HOSE BARB FOR P56 PUMP HOSE BARB FOR P56K PUMP HOSE BARB FOR P56V PUMP PUMP BRACKET- STAINLESS STEEL HI LO SCREW FOR RETAINING P56-BRKT PORTABLE FOAMER BACK PLATE W/ HINGE AND HOLES 302 STAINLESS PORTABLE PLATE HINGE PIN PVC VALVE 3/4in FPT X 3/4in MPT 3/4in BLACK POLY PRO X 10in - FPTBE - SCH.80 AIR REGULATOR INCLUDES AIR FILTER AND BOWL AIR FILTER for R25 METAL AIR BOWL for R25 1/4-20 X 5/8 PHIL TRUSS MACHINE SCREW 18-8 W/#516 VIBRASEAL ORANGE PATCH 5/16-18 x 1/2 Phil Pan 18-8 1/2in HEX STAINLESS STEEL NIPPLE S.S. 304 MALE/FEMALE ADAPTOR 1/4 NPT X 1/4 NPT S.S. AXLE 20.5 INCHES LONG BY 5/8 INCH IN DIAMETER DRILLED AND BEVELED WORM GEAR CLAMP, S/S (.25-.63) STAINLESS TEE COMBO 1/2in FPT X 3/8 in BARB WITH SSST AND S.S. MESH STAINLESS STEEL MESH WITH SSST FOR REPLACEMENT SCREEN DISC .687 DIA. 10 X 10 MESH @ .020 DIA. STAINLESS STEEL AXLE PLATE - 2.5 inch X 1 inch - 2 HOLE VEEJET NOZZLE, 80200 IN LINE STRAINER 3/8 BARB 20 MESH 304 SS EDPM GSKT 25 GALLON PORTABLE UNIT NATURAL IN COLOR 1/2 INT TOOTH L/W 410SS NONMARKING WHEEL FOR PORTABLE UNITS S.S. 304 SPRAY WAND 3/8in MPT X 7in LONG - THREAD ON ONE END TSUNAMI WATER SEPARATOR 20 CFM

Model Number: 925N, 925N-K, 925N-V and related units

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References