CleaverBrooks CBEX Elite User Manual

750-368
CBEX Elite 100-1200 HP
6-9
6.11 — Gas Pressure and Flow Information
The pressures listed are based on 1000 Btu/cu ft natural gas at elevations up to 700 feet above sea level. For
installation at higher altitudes, multiply the selected pressure by the proper factor from Table 6.2.
TABLE 6-1. Minimum gas pressure required at entrance to regulator/gas valve
BOILER
HP
Combination Regulator
and Gas Valve Size (in)
PRESSURE
REQUIRED (“WC)
100 1.5 12.5
125 1.5 20
150 1.5 27.5
200 1.5 38.5
250 2 41
300 2 55
350 2 75.5
400 2 92
500 2.5 55
600 2.5 79
700 3 80.5
800 3 105
900 3 141
1000 3 175
1100 3 211
1200 3 251
TABLE 6-2. Pressure/Altitude Correction Factors
Altitude Feet Above Sea
Level Correction Factor
1000 1.04
2000 1.07
2500 1.09
3000 1.11
4000 1.16
5000 1.21
6000 1.25
7000 1.30
8000 1.35
9000 1.40
NOTE: For undersized or oversized gas trains or altitudes above 9000 feet, contact your local Cleaver-Brooks repre-
sentative.

CleaverBrooks CBEX Elite Specifications

General

Brand	CleaverBrooks
Model	CBEX Elite
Category	Boiler
Language	English