Brochure

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Automatic air vent.
Brass body.
Max. working pressure: 150 psi.
Max. discharge pressure: 90 psi.
Max. discharge rate: 1.75 SCFM.
Max. working temperature: 240°F.
Automatic air vent with service check valve.
Brass body.
Max. working pressure: 150 psi.
Max. discharge pressure: 90 psi.
Max. discharge rate: 1.75 SCFM.
Max. working temperature: 240°F.
Manual air vent with metal seal and
adjustable outlet.
Brass body.
Max. working pressure: 150 psi.
Max. working temperature: 212°F.
337
Service check valve for removal of air vent
or expansion tank without purging system.
Fits automatic air vents 502 series.
Max. working pressure: 150 psi.
Max. working temperature: 250°F.
Replacement hygroscopic cartridge
fits hygroscopic air vent 5080 series.
(Priced each, sold in package of 25 each)
5081
AUTOMATIC AND MANUAL AIR VENTS
High discharge automatic air vent.
Brass body.
Stainless steel float guide pin and linkage.
Max. working pressure: 150 psi.
Max. discharge pressure: 150 psi.
Max. discharge rate: 4.5 SCFM.
Max. working temperature: 250°F.
551
DISCAL
®
Automatic radiator air vent valve is designed to remove
any air trapped inside the heat emitters both during
the filling of the system and in normal operation. The
automatic air discharge happens when the hygroscopic
cellulose fiber discs are dry. As air is vented and water
contacts the hygroscopic discs, they increase their
volume by 50% which cause the discharge vent to
close.
Automatic hygroscopic air vent for hydronic
heating system and low pressure steam.
Manual operation by rotating knob.
Chrome plated brass body.
Max. working pressure: 150 psi.
Max. working temperature: 212°F.
Low pressure steam: 15 psi.
(Priced each, sold in package of 25 each)
5080
HYGROCAL
™
Code Description Lbs USD
508013A
1
/
8
" MNPT 0.1 12.30
Code Description Lbs USD
508100A Cartridge 0.1 10.60
Code Description Lbs USD
337221A ¼" MNPT 0.1 15.20
Code Description Lbs USD
551004A ½" FNPT 0.8 138.00
Code Description Lbs USD
59474A
1
/
8
" MNPT x FNPT 0.1 17.50
59804A ¼" MNPT x FNPT 0.1 18.80
561402A ½" MNPT x FNPT 0.2 21.60
Code Description Lbs USD
502710A
1
/
8
" MNPT 0.6 31.20
502720A ¼" MNPT 0.6 32.90
NA502740A ½" MNPT, hygroscopic anti-drip cap 0.6 42.60
Code Description Lbs USD
502610A
1
/
8
" MNPT 0.6 22.50
502620A ¼" MNPT 0.6 23.50
502630
3
/
8
" straight thread 1.0 31.30
502640 ½" straight thread 1.0 33.80
5026
ROBOCAL
™
5027
ROBOCAL
™
Function
DISCALAIR
®
automatic air vents
release air that forms in the
hydraulic circuits of heating and air
conditioning systems with pressures
to 150 psi. The venting air discharge
capacity is capable of expelling over
4 standard cubic feet per minute
(SCFM). The circulation of fully
de-aerated water or glycol-water
mediums enables the equipment to
operate under optimum conditions,
free from noise, corrosion, localized
overheating, or mechanical damage.
NEW
NEW