Dover GROEN AH-20, Руководство оператора и по обслуживанию

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OM/SM-AH-CE
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body, testing must be performed more often. A e. Use pipe compound sparingly, or tape, on
“try lever test” must also be performed at the external threads only.
end of any non-service period.
Test at or near maximum operating pressure by
holding the test lever fully open for at least five
seconds to flush the valve seat free of sediment
and debris. Release the lever and let the valve
snap shut. If lift lever does not activate, or there
is no evidence of discharge, discontinue use of
equipment immediately and contact a licensed
contractor or qualified service personnel.
Neither Conbraco Industries, Inc. nor its agents
assume any liability for valves improperly
installed or maintained.
This quality Conbraco safety relief valve, with
proper installation, use, and maintenance, will
provide many years of reliable service and
protection against excessive pressure build-up
of water/steam. Use of this valve for any other
purpose or media places all responsibility upon
the user. Before installing valve or operating
equipment to which it is installed, read
instructions carefully. Always wear proper
safety equipment.
INSTALLATION OF SAFETY VALVE
10-100, 10-200, 10-300, 10-500, & 10-600
Series
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.
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. Therefore, 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 375º F or
greater
8) is, over its entire length, of a pipe size
equal to or greater than that of the valve
outlet.
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!