 Thermal
Shut-Off, Heat Actuated Ball Valve
The Essex thermal actuated
shut-off ball valve combines the operating characteristics of a manual
operated ball valve with the added safety feature of automatic operation
in the event of fire or other determined ambient temperature. The
opertion can be set to automatically open or close with the option of any
position between, if required.
Thermal links may be furnished
U.L. listed for 135°, 165°, 212°, 286°, 360°, and 500°
F.
All links are Factory Mutual
approved.
Applications include activating
spinkler systems for fire control, or shutting off hazardous links in event
of fire.
The Essex standard themal
shut-off ball valve, THR0001CT, will operate withpressures in excess of
1000 psi at temperatures of -20° to 425° F (for upper limit 500°
F thermal link must be used). Standard valves are furnished with
165° F thermal link.
Factory Mutual Approved rating
is for flammable liquids nd 125 psi.
MODEL TA0001X, TA0002X
and TA0003X - Factory Mutual Approved
VALVE OPTIONS:
• Stainless stee, carbon
steel, monel, inconel, hastelloy B & C, alloy 20, copper and brass.
• Valves sizes 1/4 thru
4 inches.
• Valves in figures 1
and 2 are shown with removable handle.
• Manual remote models
are optoinal. Send for catalog application sheet HR-3.
|
 Electro-Thermal
Shut-off, Electric or Heat Actuated Ball Valve
The electro-thermal
link (ETL) used on the Essex actuated shut-off ball valve is
compatible with most smoke or gas detectors on the market.
The operating range
fo the link is 6 to 30 VAC or 6 to 30 VDC. It requires
less than 0.2 amperes of power, 0.5 milliseconds at 24 volts.
The unit may be used with other similar circuitry such as a
rate of rise detector or other automatic alarm switch (see application
sheet HR-1 and HR-2).
Applications include those
of the 165° F Essex standard thermal link shown in Fig. 1, but, in
addition will operate when subjected to an electrical impulse of low power
and short durtion from local or remote location.
ETL may be furnished at 212°
F or 255° F but are not U.L. listed.
This unit is used with fuel
and combustion controls, combustion safeguards, electrical signaling system
which are:
-
heat activated
-
smoke or gas activated
-
flame-energy activated
-
activated by rate of rise or
maximum temperature
MODEL EA0001X, EA0002X and
EA003X - Factory Mutual Approved
VALVE OPTIONS:
• Thermal links may be
furnished U.S. listed for 135°, 165°, 212°, 286°, 360°
and 500°.
• Heat or electrical
actuated links are U.S. listed for 165° F -- Not U.L. listed for 212°
F and 255° F.
May be purchased as a
deadman handle without fusible link.
Only the ETL in figure
2 is listed. Components used in conjunction with this unit are not
claimed. |
