Brochure

35
HYDRONIC SPECIALTIES
AIR VENTS
Approx. Shpg.
Wt. (Lbs)
Carton Of
1.8
Part
Number
Model
Number
Maximum
Pressure
Temperature
Dimensions
(W x H)
System
Connection
Description
107A
7
67
87
97
RV-125A
26
4V
TB-1
TB-3/4
1/8" P/T
1/4" P/T
113076
113001
113020
113021
113222
113100
113075
113055
127002
127001
G97030
V58050PK
High Capacity Air Vent
Automatic Air Vent
Readout Valve
Vacuum Breaker
Manual Air Vent
Balance Valve
Balance Valve
Readout Valve
Readout Valve
3/4" NPTF
1/8" NPTF
1/8" NPTM
Combination
3/4" NPTM 1/2" NPTF
1/8" NPTM
1/8" NPTM
3/4" NPTM
1/8" NPTM
1" NPTF
3/4" NPTF
1/8" NPTM
1/4" NPTM
4-1/2" x 9-5/8"
1-1/2" x 3-3/16"
2-1/4" x 4-3/4"
1-7/8" x 3-1/8"
1-1/8" x 9/16"
1-1/4" x 3"
5/8" x 5/8"
2" x 9-1/4"
2" x 9-1/4"
1
-1/8" x 1-1/4"
1-1/4" x 1-1/4"
2-3/16" x 4-1/16"
150 PSIG
75 PSIG
35 PSIG
150 PSIG
300 PSIG
150 PSIG
125 PSIG
300 PSIG
250ºF
240ºF
250ºF
300ºF
250ºF
250ºF
240ºF
10
.5
.25
.61
4
3
2
26
26
.5
.1
1
1
50 pairs
6
48
6
6
1
1
240 PSIG
300 PSIG
125 PSIG
250ºF
250ºF
1.8
98
113246
3/4" NPTM 4-1/2" x 9-5/8"
250ºF
DT-2
RP-250B
113041
113102
Drain-O-Tank
Readout Probe
1/2" NPTM
N/A
2-1/4" x 6-5/16"
2" x 5/8"
125 PSIG
250ºF
240ºF .67
1
1
6 pairs
300 PSIG
TB– Thermoflo
®
Balancer
A device for instant visual balancing
of hot or cold water flows. With a
B&G Thermoflo balancer installed
in each circuit or zone, the entire
system can be quickly balanced to
meet original design calculation.
No. TB-3/4”- Capacity 1 to 5 GPM.
No. TB-1”- Capacity 2 to 10 GPM.
125 PSIG Working Pressure —
250ºF Maximum Operating
Temperature
DT-2 Drain-O-Tank
®
Air Charger
The Drain-O-Tank Air Charger offers a
sure, quick way to recharge a water-
logged compression tank.
125 PSIG Working Pressure —
240ºF Maximum Operating
Temperature
Model No. 107A High
Capacity Air Vent
A rugged High Capacity Air Vent
designed to purge free air from
liquid systems at operating
pressures up to 150 PSIG.
The Model 107A Air Vent has
a cast iron body and bonnet,
with stainless steel, brass and
EPDM internal components
and is suitable for a maximum
operating temperature of
250ºF. The Air Vent has a 3/4”
NPT inlet and 3/8” NPT outlet.
No. 98
A high capacity automatic air
vent that is designed to remove
air in closed loop systems.
Materials of construction: Brass
body with non-ferrous internals.
Maximum Working
Pressure: 150 PSI. Maximum
Operating Temperature: 250ºF
No. 97 Automatic
Air Vent
A float type vent designed to
vent troublesome air from
hydronic heating systems. The
brass body and the non-ferous
internals provide years of reliable
service. The compact design
(3-1/8” x 1-7/8”) and high operating
pressure/temperature (240ºF @ 150 PSIG)
limitations make the No. 97 a must in any
hydronic heating system.
No. 87, 67 and 7
Automatic Air Vents
Designed to vent the
accumulation of troublesome
air wherever it can be trapped.
These non-ferrous automatic
air vents are 4-3/4” x 2-1/4”,
3-3/16” x 1-1/2” and 4-1/16”
x 2-3/16” (height and width),
respectively, and are rated for
a maximum operating temperature of
240ºF at pressures of 150, 35 and 75 PSI,
respectively. The No. 87 has a combination of
1/2” FPT/3/4” MPT connection, whereas No’s. 67
and 7 have 1/8” MPT, and FPT connections.
No. 26 Vacuum Breaker
Designed to protect closed
vessels and piping systems
against collapse when the
induced vacuum exceeds design
conditions. When used on
steam heating systems, the No.
26 Vacuum Breaker controls
induced vacuum, permitting normal
return of condensate to the boiler.
Adjustable range 1/4” to 20” (mercury)
vacuum. Factory set to 4” — 240 PSIG
Maximum Working Pressure —
300ºF Maximum Operating
Temperature
No. 4V “Coin-Operated”
Air Vent
Specially designed for the new
types of radiators. An important
feature is that it projects only
slightly, being almost flush with
the radiator. 150 PSIG Working
Pressure — 250ºF Maximum
Operating Temperature
RV-125A Readout Valve and
RP-250B Readout Probe
The RV-125A is designed
for use wherever pressure
tappings are required to
monitor flow or pressures.
The Readout Valve is fitted
with an EPT insert which
incorporates a unique check
valve feature designed
to check flow when the
Readout Valve is not being
used to monitor flow. Use companion RP-250B
Readout Probes with the RV-125A Readout
Valve. 300 PSIG Working Pressure —
250ºF Maximum Operating Temperature
RP-250
RV-125
Specifications