North American Automatic Shutoff Valves Manual

North American Automatic Shutoff Valves Manual
Combustion
Bulletin 1518/1519
North American Automatic Shutoff Valves
Manual Reset and Motorized
FEATURES
— Sanctioned: UL, FM, CGA (IRI approvable)
— Proof-of-Closure Switch
— High Capacity/High Pressure
— Large Open/Shut Indicator
— Metal-to-Metal Seating
— Ambient or Fluid Temperature Limits:
–20 F to 140 F (–28 C to 60 C)
— NEMA 4 Enclosure
1518 Manual Reset
Normally-closed valves. Powering of an internal solenoid
or magnetic clutch permits opening. Interruption of power
supply results in virtually instantaneous closure. Listed/
Approved for clean fuel gas. Suitable for many other gases.
Unlisted versions available for some special gases and
liquids.
1519 Motorized
Bulletin 1518/1519
Page 2
TYPICAL APPLICATIONS
North American Automatic Shutoff Valves are used in fuel supply
lines on industrial furnaces, ovens, kilns, boilers, and other heating
equipment. They shut off fuel automatically and instantly upon
any break in electric power or the safety circuit.They cannot be
opened until an interlocking safety or control circuit is complete,
restoring power to the valve.
They could be suitable for pipe lines carrying a variety of gases
and liquids used in processes other than combustion.
Use Manual Reset Valves where "manned" operation is required
or preferred.
Specify Motorized Valves where remote or "unmanned"
operation is needed. Not recommended for oil applications where
on/off cycling is more than 6 cycles per hour.
1518 and 1519 Valves are for emergency automatic shutdown
only--following any shutdown, close manual shutoff valves
promptly.
STANDARDS
All North American 1518 and 1519 Automatic Shutoff Valves have
the following standard characteristics:
— Sanctioned by FM, UL, and CGA.
— Approvable by IRI.
— Enclosure meets NEMA 1, 3, 3S, 4, 12, and CSA 2, 3, and 4.
— SPDT "Proof-of-Closure" switch.
— DPDT "Valve Open" switch.
See Specifications 1518/1519 for size, capacity, trim, and weight of
each Manual Reset and Motorized Valve (Sanctioned and Nonsanctioned).
Sactioned Valves carry FM, UL, and CGA labels for natural gas
and propane gas. All are IRI approvable. Maximum pressure
differentials vary from 30 to 125 psi (depending on size). Sizes -7
and -8-XF are not suitable for #2 oil.
Non-sanctioned Valves, which carry no agency approvals, are for
potential use on special fluids. Fluid analysis is always required
to determine suitability, pressure allowance, and valve materials.
Additionally, 1518U and 1519U are good for #1 and #2 fuel oils, but
carry no agency approvals.
All valves (except 1519-8-XF, -8-XFS, U-8-XF, and U-8-XFS--max.
125 F [52 C]) are suitable for ambient and fluid temperatures from
–20 F to 140 F (–28 C to 60 C) on AC electrical power.
Valve action closes aggressively within one second of power
loss. A two-stage latch/return motion by the operator can open a
Manual Reset Valve after it is re-powered. Motorized Valves allow
flow to begin within one second of powering: They are fully open
in six seconds for most sizes.
PERFORM FREQUENT FIELD INSPECTIONS, LEAK TESTS, AND
PROPER MAINTENANCE TO ASSURE CONTINUED SATISFACTORY
VALVE PERFORMANCE. REFER TO INSTALLATION/MAINTENANCE
BULLETINS.
DO NOT OPERATE MOTORIZED VALVES MORE THAN
ONE CYCLE PER MINUTE FOR PERIODS OVER 15
MINUTES TO AVOID OVERHEATING MOTOR.
— Prewired terminal block.
— Pipe sizes 3/4" through 6".
— Cast iron body.
— 115 V ac / 60 Hz operation (other characteristics available).
— Top assembly position is field rotatable.
— 6 seconds opening time for most motorized valves on 60 Hz.
OPTIONS
— Steel body.
— Companion flanges (order separately).†
†Not available for all sizes.
CONTACT US:
Fives North American Combustion, Inc.
4455 East 71st Street - Cleveland, OH 44105 - USA
Tel: +1 216 271 6000 - Fax: +1 216 373 4237
Email: fna.sales@fivesgroup.com
www.fivesgroup.com
Copyright © 7-01 - Fives - All rights reserved. Bul 1518/1519
— Expanded capacity ports.†
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising