Waterous Eclipse ES, Installation Instructions Manual

Page: 29 / 37

F-1031, Section 3028 Page 29 of 37
Typical CAFS Discharge
Injection
Point
Compresse
d
Air Line
Air Check
Valve
Foam
Solution
Water Check
Valves
Discharge
Valve Body
Suggested Third-Party Components
NOTE: These guidelines are useful for many installations but selection of
third-party components is at the discretion of the system installer or
vehicle manufacturer.
Air Flow Meter
Use of an air flow meter is optional.
Master Air Pressure Gauge (See Page 15)
When selecting a master air pressure gauge, make sure it has a pressure
range of 0-200 psi.
Air Lines Between Components (See Page 15)
Refer to “Suggested Air Hose” specifications on this page.
Hydraulic Lines Between Components (See Page 8)
The base hydraulic hose size will be the same as the fitting hose connected to.
For example; Use 3/8 in. hose for a #6 (3/8 in.) JIC fitting. Note that hydraulic
lines should be as short as possible and individual hoses should not exceed 20
feet in length.
CAFS Discharge Components
The installer must provide fittings and tubing to connect CAFS components to
the vehicle's discharge outlets. These are
suggested parts for common dis-
charge sizes. If the planned discharge system is not covered in this guideline,
please contact Waterous.
NOTE: Waterous strongly suggest that every CAFS discharge have an air
check valve and water check valve as shown below. The air check valve
prevents foam solution from backflowing into the compressor and con-
taminating the oil. The water check valve isolates the discharge, prevent-
ing CAF from backflowing into the foam solution manifold and exiting
through another discharge. This makes it possible to flow solution
through one discharge and CAF through another.
Suggested Air Hose
The interior diameter (I.D.) of the hose is the most important factor and any
hose with the correct I.D. and rated to withstand the expected air system pres-
sure (500 PSIG burst pressure) may be used.
The most cost-effective hose is a push-on type hose (Weatherhead H101 or
H201 or equivalent). Hoses come in a variety of colors for color-coding the
lines by purpose.
The other type of hose that is commonly used for air discharges is hydraulic
hose, SAE 100R1 type. Typically, hydraulic hose is not necessary on the air
discharge circuit due to the system air pressure not exceeding 150 psi.
Air brake hose may also be used, provided the inside diameters are correct:
Air Brake Hose O.D. / I.D. Dimensions
O.D. (Inches) I.D. (Inches)
.375 .250
.500 .375
.625 .500
.750 .625
Discharge Fittings
Suggested for 1" Booster Reel or 1" Remote Discharge (Use 3/8" Air Hose)
If an electric solenoid valve is used for air instead of a manual valve, use:
•
1/2" direct-acting solenoid valve
•
Toggle switch SPST (suggest switch guard)
•
1/2" x 3/8" NPT bushing
•
#6 x 3/8" Female 37 JIC swivel to NPT-M adapter
•
Delete #6 JIC x 6 Push-Lock
•
Delete #6 JIC x 1/2" NPT-M 90
Quantity Description
1
Water Check Valve
(same size as discharge valve - suggest ball & cone style)
1 12 BV Class 1 Valve
Quantity Fittings Per Discharge
4 #6 JIC x 6 Push-Lock
2 #6 JIC x
1/2” NPT-M 90
1
3/4” NPT-M x 1/2” NPT-F Bushing
1
#6 JIC x 1/2” NPT-M
1
3/4” NPT Nipple
1
1/2” Air Check Valve