OM-DEE/4 15
g.
Record the exact amounts of water and treatment compound needed.
These amounts may be used again, if the same water sources and
compound are used. However, it is best to check the pH each time
treated water is prepared.
11.
Installation of Safety Valve
a.
Installation must be performed by qualified service personnel only.
b.
The BTU/hr or lb/hr rating of this valve must equal or exceed that of the
equipment to which it is attached
c.
DO NOT use this valve on a coal or wood boiler having an uncontrolled
heat input.
d.
Ensure that all connections, including the valve inlet, are clean and free
from any foreign material.
e.
Use pipe compound sparingly, or tape, on external threads only.
f.
DO NOT USE A PIPE WRENCH! Use proper type and size wrench on
wrench pads only.
g.
This valve must be mounted in a vertical, upright position directly to a
clean, tapped opening in the top of the boiler or equipment. Under no
circumstances should there be a flow restriction or valve of any type
between the safety relief valve and the pressure vessel
h.
WARNING! During operation, this valve may discharge large amounts
of steam and/or hot water. To reduce the potential for bodily injury and
property damage, a discharge line MUST be installed that:
1.
is connected from the valve outlet with no intervening valve and
directed downward to a safe point of discharge.
2.
allows complete drainage of both the valve and the discharge line
3.
is independently supported and securely anchored so as to avoid
applied stress on the valve.
4.
is as short and straight as possible.
5.
terminates freely to atmosphere where any discharge will be
clearly visible and is at no risk of freezing.
6.
terminates with a plain end that is not threaded.
7.
is constructed of a material suitable for exposure to temperatures
of 174°C (375°F) or greater.
8.
is, over its entire length, of a size equal to or greater than the
valve outlet.
i.
Use only schedule 40 pipe for discharge. (Do not use schedule 80,
extra strong pipe or connections). DO NOT CAP, PLUG, OR OTHERWISE
OBSTRUCT DISCHARGE PIPE OUTLET!
j.
See appropriate ASME Boiler and Pressure Vessel Code for additional
installation instructions.
Maintenance
Summary of Contents for DEE-CE Series
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