Model Type R2F
steel double panel radiators of the lengths and in locations
as indicated, and of capacities, style and having accessories
as scheduled. The double heating panel radiation shall be of
one-piece all-welded steel construction, consisting of a pair
of flattened water tube panels welded to headers at each end.
Welded to the inside of each panel shall be steel corrugated
fins to increase the convective output of the radiator. The
fins shall start at no less than 3 from the end of the
radiator, and shall have no less than 32 fins per foot. The
radiators shall include an integral heavy gauge (0.09
minimum) all-welded perforated top grille, which will cover
the top of all of the finned areas (for curved radiators
the grille is omitted).
The headers shall include all
necessary inlet, outlet and vent connections as required.
Standard connection sizes are ½ NPT tapered thread for supply
and return piping, and 1/8 for the vent connection. Internal
baffling is provided where required for proper water flow.
The radiant heating panels shall
be available in lengths from 2-0 to 29-6 in two inch even
increments without the need for splicing. The panel radiation
shall be capable of being mounted to typical stud wall
construction without additional blocking or strapping.
Appropriate wall mounting brackets shall be provided with the
The panel radiation shall be
manufactured in the USA.
ALTERNATE: The double panel radiators (up to
four tubes tall) are to be provided with floor-mounted
pedestals (OR Cantilever Wall Brackets) in lieu of the wall
Pressure ratings for the radiation shall be as follows:
STANDARD: Working pressure-56 PSI
maximum, Test Pressure-74 PSI maximum
MEDIUM: Working pressure-85 PSI maximum, Test Pressure-110 PSI
HIGH: Working pressure-128 PSI maximum, Test Pressure 184 PSI
Panel radiation expansion shall
not exceed 1/64 per foot of radiation at 215ΊF. The installer
shall provide adequate expansion compensation for each
Finishes: The panel
radiation shall be cleaned and phosphatized in preparation for
the powder coat finish. The radiation is then finish painted
with a gloss powder coat finish, for a total paint thickness
of 2-3 mils (0.002 - 0.003). The color shall be selected
form the Runtals standard colors, or optional colors shall be
available at and additional cost.
Warranty: All Runtal
radiators are covered by a 5-Year Limited Warranty
Subject to compliance with requirements, provide flat tube
panel radiation as manufactured by Runtal North America, Inc.
OPTIONAL ITEMS WHICH MAY BE
ADDED TO THE SPECIFICATION:
Ribbed pipe cover trims, finished to match the radiators shall
be provided with the radiation.
The radiation manufacturer shall
provide combination shutoff valve/union fitting of less than
two inches in width for the supply and return to each panel
radiator, to be field installed by others.
Runtal-Flex connectors shall be
used where appropriate to provide expansion compensation for