Fairchild 4500A - Page 3

OUTLINE DIMENSIONS
SPECIFICATIONS
Figure 2. Model 4500A Outline Dimensions
31/64
12.2
43/64
20.4
5/16
8.1
3/8
9.5
By-pass
Valve Closed
By-pass
Valve Open
3 19/64
83.8
5 5/64
128.8
3 13/32
86.6
4 1/2
114.3
By-pass Valve
1:1 Ratio Only
(optional)
Exhaust
Vents (8)
(keep clear)
3/8 NPT
Inlet Port
3 1/2
88.9
(typical)
Face Dim.
1/4 NPT
Gage Ports (2)
(typical)
1/4 NPT
Signal Port
3/8 NPT
Outlet Port
(typical)
1/8 NPT
Remote
Feedback
Port
(optional)
2 53/64
71.8
2 19/64
58.5
1 9/16
39.6
5 53/64
148.2
1
25.4
Hex.
1 13/32
35.9
1/2 NPT Tapped
Exhaust Port
(optional)
FUNCTIONAL SPECIFICATIONS
PERFORMANCE SPECIFICATIONS
Ratio
1:1 1:2 1:3
2:1
3:1
Ratio
1:1 1:2 1:3
2:1
3:1
psig
[BAR]
(kPa)
Maximum
Output
Pressure
150
[10.0]
(1000)
150
[10.0]
(1000)
150
[10.0]
(1000)
75
[5.0]
(500)
50
[3.5]
(350)
psig
[BAR]
(kPa)
Maximum
Supply
Pressure
250
[17.0]
(1700)
250
[17.0]
(1700)
250
[17.0]
(1700)
250
[17.0]
(1700)
250
[17.0]
(1700)
Flow Capacity
100 psig, [7.0 BAR],
(700kPa) supply,
20 psig, [1.5 BAR],
(150 kPa) set point.
SCFM
(m
3
/HR)
150
(255)
150
(255)
150
(255)
150
(255)
150
(76.5)
Exhaust Capacity
Downstream Pressure
5 psig, [.35 BAR],
(35 kPa) above
20 psig, [1.5 BAR],
(150 kPa) set point.
SCFM
(m
3
/HR)
40
(65.2)
40
(65.2)
40
(65.2)
40
(65.2)
40
(18.7)
Sensitivity
Water Column
(cm)
1"
(2.54)
2"
(5.08)
3"
(7.62)
2"
(5.08)
2"
(5.08)
Ratio Accuracy
% of 100 psig, [7.0 BAR],
(700 kPa) output span.
3.0 3.0 3.0
% of output span with
100 psig, [7.0 BAR],
(700kPa) input span.
3.0 3.0
Supply
Pressure Effect
for change of 100 psig
[7.0 BAR], (700 kPa).
psig
[BAR]
(kPa)
0.10
[.007]
(0.7)
0.20
[.014]
(1.4)
0.30
[.021]
(2.1)
0.10
[.007]
(0.7)
0.10
[.007]
(0.7)
Ambient
Temperature
-40
-0
F to 200
-0
F
(-40
0
C to 93.3
0
C)
Materials
of Construction
Body & Housing . . . . . . . . . . . . . . . . . .
Aluminum
Trim . . . . . . . . . . . . . . . .
Zinc Plated Steel, Brass
Diaphragm . . . . . . . . . . . . . . . .
Nitrile on Dacron
Model 4500A 2