| |
Cast
Iron Columns For Pressures 0 to 250psi |
| HOW
TO SPECIFY AND ORDER THE CLARK-RELIANCE CAST IRON WATER COLUMNS
TO MEET YOUR INDIVIDUAL APPLICATION |
 Clark-Reliance
manufactures a small, cast iron, float type water column and
a larger size cast iron water column that can be either float
type or probe type (Universal Column W0250). Information contained
in these pages describes the design and performance of each
column.
To select the proper water column model, first acquaint yourself
with the types of columns available, including a review of
the Model Selection Guide presented below, and then complete
the following recommended steps:
- Determine the gage glass visibility required.
- Determine the steam and water center dimension.
- Determine the alarm variation requirements.
- List the alarm/control functions desired.
Completion of these steps will direct you toward the proper
model. If selection assistance is required, contact your
local Clark-Reliance representative or the Clark Reliance
Technical Services Department direct.
Installation Notes For recommended installation procedures,
refer to Catalog 500, Section AB2.4. Also be advised that
for all water column models the lowest visible part of water
gage glass must be at least 2 inches above the lowest permissible
boiler water level.
Material Note The cast iron used in Clark Reliance Column
1 and W0250 water columns is ASTM A278-CL30. |
| |
| Column 1 Float
Type |
| Small Column
Size |
| Fixed Dimensions |
| Fixed Connection
Locations |
| Alarm Function
Only |
| |
| Column
1 is a comparatively small water column in regard to water
gage center measurements and other related dimensions. Column
1 is available only with 1" or 1½" steam and water
connections. |
| |
| Float Type |
Probe
Type* |
High Alarm |
Low
Alarm |
Low Fuel Cut-Out
|
| COLUMN 1 |
----- |
X |
X |
----- |
| W0250-FA |
|
X |
X |
----- |
| ----- |
CONVERTED
W0250-FA |
-------
AS SPECIFIED ------ |
| ----- |
W0250-EA3
|
X |
X |
----- |
| ----- |
W0250-EA4 |
X |
X |
|
| ----- |
W0250-EA5
|
X |
X |
|
| ----- |
W0250-EA6
|
X |
X |
|
| |
| Float Type Water
Column - WO250 |
| 
- Variable Gage Centers
- Variable Steam/Water Locations
- Alarm Function Only
Column
W0250 provides water gage centers that can vary upon specification
from 13½" to 23". Top or side steam and water connections
can vary upon specification from 11½" to 22".
Conversion Columns All Clark-Reliance cast iron, float type
columns serving pressures to 250 PSI can be converted
to accommodate a probe cap. This conversion brings fuel cut-out
controls, as well as high/low alarms, to converted columns.
Check Out This S.m.a.r.t.
Idea ! |
| |
| Probe Type Water
Column - WO250-EA4 |
| 
- Variable Gage Centers
- Variable Steam/Water Locations
- Alarm & Fuel Cut-Out Functions
Column
W0250-EA4 offers the same variations in water gage centers
and steam/ water connections as noted for Column W0250-FA
and shown in Figure 4. In addition, W0250-EA4 also provides
probe actuated high/low alarms and low fuel cut out control.
Column W0250-EA3 provides probe actuated high/low alarms
only.
Probe functions noted above are considered standard. Other
probe functions may be added or substituted to meet specific
requirements. |
| |
| Probe Type Water
Column - WO250-EA5 |
- Variable Gage Centers
- Alarm & Fuel Cut-Out & Pump Control Functions
- Variable Steam/Water Locations
Column
W0250-EA6 offers the same variations in water gage centers
and steam/ water connections as noted for Column W0250-FA.
In addition to probe actuated high/low alarms and low fuel
cut-out functions, this column also provides probe controlled
pump actuation.
Column W0250-EA5 provides probe actuated high/low alarms
in combination with low and high fuel cut-out.
Probe functions noted above are considered standard. Other
probe functions may be added or substituted to meet specific
requirements |
| Related Links: |
| Authorized
Service Center Details (PDF File) |
| Example
Of Whistles (both single & double) |
| Example
Of Prismatic Gage Offsets |
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