Eclipse 200 LT valves are manually opening valves that
automatically shut off the gas supply to a combustion sys-
tem when any interlocking limit switch opens. The valve
handle cannot be reset until the condition causing the
open switch is corrected and all limit switches are closed.
Typical limit switches include air pressure, gas pressure,
temperature limit, and flame monitoring contacts. In the
event of a power failure, the valve immediately closes.
Series 200 LT valves include two visual indicators of
“open” or “closed” position: a red “flag” visible in the plastic
dome on top of the valve; and the reset handle position as
indicated by cast markings on the operator case. These
valves also include two SPDT micro-switches that can be
used for auxiliary circuits. Two contacts are made when
the valve opens, and two are made when the valve is
closed.
1.0 Materials of Construction
1.1
Operator housing—
heat treated cast aluminum.
1.2
Valve body—
cast aluminum or cast iron depending
on model selected.
1.3
Valve disc—
steel with Hycar synthetic rubber
bonded to provide soft seating on valve port.
1.4
Valve shaft—
stainless steel.
1.5
Closing spring—
stainless steel.
1.6
Main shaft gas seal—
plated steel with O-ring.
1.7
Main housing and terminal strip—
tightly sealed
using nitrile (UL listed) gaskets in order to assure a
raintight enclosure.
Locktite Manual Reset
Gas Shut-Off Valves
Series 200 LT
10/25/2004
Instruction Manual 750
U.S. Patent No. 3,259,357
Canadian Patent No. 764,833
LISTED 326R
CGA 3.9
CSA 6.5 / ANSI Z21.21
