Buying Guide

• Reduces noise
• Improves system efciency and operation
• Reduces wear on system components
• Vertical or horizontal mount options
• Flow may be directed into
either side of the unit
• Wide range of G-Union Accessories
offer a solution for most installation
needs - see page 25
Pin guided oat for
smooth operation
Removable
corrosion-resistant
stainless steel
coalescing medium
BRASS AIR SEPARATOR
w/ Removable Vent Head & Coalescing
Medium • For Vertical Installations
STANDARD BRASS
SIZE ITEM# CTN/CASE CASE WT
FIP 150 PSI CWP Max/250ºF Max
3/4" H-74003-V 1/8 47
1" H-74004-V 1/8 48
MIP
3/4" H-72003-V 1/8 45
1" H-72004-V 1/8 47
SWT
3/4" H-75003-V 1/8 45
1" H-75004-V 1/8 46
Press
3/4" H-78003-V 1/8 47
1" H-78004-V 1/8 47
BODY ONLY - INSTALL W/ (2) G-UNION FITTINGS
G-Thread
1" H-71000-V 1/8 41
Although less efcient, may
be installed on boiler return
line for difcult installations.
Install on boiler outlet/
system supply line for
optimal performance.
Off
On
Off
On
Off
On
Off
On
BOILER
Off
On
Off
On
Off
On
Off
On
BOILER
VERTICAL AIR SEPARATOR
KNOCKING PIPES
ARE
NOT NORMAL
20 WWW.WEBSTONEVALVES.COM
WARNING: Cancer and Reproductive
Harm - www.P65Warnings.ca.gov
LEAD-FREE: Weighted
average lead content ≤ 0.25%