Brochure

92
Vents
Model 508 Part No. 401475
Water Vent Valve
• For automatic or manual venting systems
• Ideal for use with Model 550 Air Chamber
• Disc-type vent
• Built-in check valve
• Cartridge with discs can be replaced without
draining the system
•
1
⁄8" NPT straight shank
• Maximum water pressure 50 psig (3.5 bar)
• Maximum pressure 50 psig (3.5 bar)
Model 550 Part No. 401476
Air Chamber
• For use on convectors which are not provided with
built-in air chambers or air collection fittings
• Brass construction.
•
1
⁄4" NPT straight shank connection tapped at
the top for
1
⁄8" NPT connection
• 6 cubic inch (98.3cm) volume
• Maximum water pressure 100 psig (6.9 bar)
• Maximum steam pressure 25 psig (1.7 bar)
6
1
/8"
(156mm)
1
1
/2"
(38mm)
Air Chamber
Model 550
Water Vent Valve
Model 508
Hoffman Specialty
®
Vents