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58A SERIES
Balancing Valve
DESCRIPTION:
Apollo Model 58A balance valves are precision engineered and
manufactured valves which provide two position hydronic circuit
isolation capability and multi-turn throttling adjustment as
required for proportional balancing of hydronic systems. The
valves unique needle valve adjustment, with integrated digital
readout incorporated into the handle allows qualied technicians
to have the valve function as a highly accurate variable orice
ow meter. Valve pressure drop can be read through the valves
integrated 1/4” measurement ports, and ow calculated from
the ow coecient associated with the numerical setting.
FEATURES:
• P/T plugs
• Compatible with All Flow Meters
• Easy Adjustment and Setpoint Indicator
• Isolated Flow Shut-o
• Reversible Lever
PERFORMANCE RATING:
• Max Pressure: 600 psi (41.3 bar)
• Max Temp: 250°F (121°C)
MATERIAL SPECIFICATIONS:
Part Name Material
Valve Body DZR brass CW602N
Ball & Needle DZR brass CW602N (chrome plated)
Valve Handle Glass Filled Polyamide
Sealing O-ring EPDM
Gasket PTFE
Test Port Seal EPDM
DIMENSIONS IN
Part
Number
Size C
v
A B C D E F
Wt
(lbs.)
58A103PR 1/2” 1.66 2.7 3.5 3 5 3.9 1.1 1.1
58A104PR 3/4” 4.51 2.9 3.7 3 5.2 4.6 1.34 1.4
58A105PR 1” 8.18 3.2 4 3.2 4.5 5.7 1.61 1.8
58A106PR
1-1/4” 13.89 3.5 5.4 4.3 7.8 6.4 1.97 3.3
58A107PR 1-1/2” 23.9 3.7 5.7 4.4 8.3 7.0 2.24 4.3
58A108PR 2” 33.77 4.2 6.3 4.7 8.8 7.9 2.76 6.0
For liquids the ow coecient - C
v
- expresses the ow capacity in gallons per minute
(GPM) of 60°F water with a pressure drop of 1 psi (lb/in2).
OPTIONS
Solder Connection (58A-S Series)
Press Connection (58A-PR Series)
Push Connection (58A-P Series)
APPROVED APPLICATIONS:
Hot Water & Chilled Water low temperature hydronic HVAC
system adjustment.
Not intended for potable water