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PLUMBING

AUTOMATIC AIR VALVES RELIEF VALVES A
B
BELL AND GOSSETT The 250 Series covers all needs in pressure C
For Water or Steam relief valves for hot water space heating D
boilers and for hot water tanks and heat- E
An improved valve for automatically removing air ers. They conform to all requirements of the F
from the piping of any type of hot water heating ASME Boiler Code. The 250 Series has inlet G
system. When installed use a close 1/8” nipple. and outlet same size. H

Product # - 490190

Mfg. # - AAV7 - Weight 1 lb.
Packed, One - Min. Sale - One

RADIATOR STEAM VENTS Product Mfg. Inlet Outlet Opening Ship
# # Inches Inches Pressure Wt.
No. 1-A Air Valve
489550 250 3/4 3/4 100 lbs. 3 lbs.
A float-type vent with adjustable port for true
proportional venting. Port settings from (#1) 489540 250 3/4 3/4 125 lbs. 3 lbs.
slow to (#6) fast venting. 1/8” NPT angle
connection. Operating pressure up to 1-1/2
psi. Maximum pressure 10 psi.

Product # - 489990

Mfg. # - 1-A
Packed, One - Min. Sale - One

# 40 Air Valve I
J
A float-type vent with a single non-adjust- K
able port. For use on ordinary one-pipe sys- L
tem not requiring proportional venting. 1/8” M
NPT angle connection. Operating pressure
up to 6 psi. Maximum pressure 10 psi.

Product # - 490030

Mfg. # - 40

“AIR” TEST VALVE

N

O

P

Product # - 527630 Q
R
Mfg. # - G64-020

August 31, 2009