Graco 234418 Membrane Air Drying System - Manual (Page 2)

Installation
2 309920C
Installation
1. Before installing air line components, blow out the
pipe line to remove debris. Be sure air to the regula-
tor is clean. Erratic operation or loss of regulation is
usually caused by dirt in the regulator.
2. Install the Air Drying System as close as possible to
the equipment it serves.
3. Install air shut-off valve 288798 upstream from the
air system to isolate it for service.
4. Install system so air flows through filters in the direc-
tion noted on top of filter.
5. A minimum 1/2” npt piping is recommended. Avoid
using too many fittings, couplings, etc., which will
restrict air flow.
Shop Air Piping Layout
2 4 6 8 1 1 1
1
2 4 6 8
1
SATURA TED NORMA DESICCANT
¨
2 4 6 8 1 1 1 1 2 4 6 8 1
Membrane air
drying system
Desiccant air
drying system
Ball Valve
Drain Valve
Drain
Leg
Air Control unit
or Air Filter
1/2” (13
mm) drops
Main Air Line
3/4” (19 mm) minimum
1-1/4” (32 mm) optimum
Slopes do
wn and aw
ay
Recomm
ended 4” (
117 mm)
drop in 50
’ (15.24 m
) galvaniz
ed
Coalescer
Air
Filter
Compressor
Flexible hose
between compressor
and stand pipe
15-20
ft. (4
.6-6.1
m)
• Main Air Line stand pipe should not be smaller than compressor outlet size.
• A minimum of 25 ft. (7.62 m) from compressor to first filter outlet is required to cool air [50 ft. (15.24 m) optimum]
OR
Main Air
Shut-off Valve