Model 1358 – Brooks Instrument 1358 User Manual
Page 8

Installation and Operation Manual
X-VA-1358-eng
Part Number: 541B041AAG
September, 2012
1-2
Section 1 Introduction
Model 1358
Scales
Type (Standard): Fused on meter tube
Length: 75 mm, nominal
Graduations:
Standard: direct read on tube in gpm water or scfm air.
Optional: special direct read decal on tube. Consult factory for
available ranges. Direct read on metal scale plate mounted beside
tube.
Capacities and Pressure Drops
Refer to Table 1-1
Standard accuracy:
±10% of full scale from 100% to 10% of scale reading.
Repeatability
0.5% full scale
Rangeability
Ten to one
Table 1-1 Capacities
Maximum Flow Rate
Pressure Drop
Pressure Drop
Water
Without Valve
With Valve
(gpm)
Inches W.C.
Inches W. C.
Float
0.8
12.6
13.6
8-RV-8
1.5
22.2
27.0
8-RJ-10
2.5
61.0
85.2
8-RJ-23
3.5
88.7
121.0
8-RJ-30
5.0
172
238.0
8-RJ-39
Pressure Drop
Pressure Drop
Air
Without Valve
With Valve
(scfm)
Inches W.C.
Inches W.C.
Float
3.4
14.34
15.5
8-RV-8
6.0
25.34
30.8
8-RJ-10
12.0
69.34
97.3
8-RJ-23
15.0
101.34
138.3
8-RJ-30
NOTE: All air flows are at 14.7 psia and 70°F.
Connections
Standard: Horizontal female 3/8" NPT threaded adaptors.
Dimensions
See Figure 1-1
Materials of Construction:
Metering Tube
Borosilicate glass