Apollo Conbraco 20-700 User Manual
20-700 SERIES
EXPANSION TANK
WATER GAUGE
Job Name: Contractor:
Job Location: P. O . N um b e r :
Engineer: Representative:
Ta g: Wholesale Distributor:
DESCRIPTION
The Apollo® 20-700 Series bronze expansion tank
gauge is designed for basic liquid level verification.
They are not for use on boiler systems. Sight glass
is available in any length up to 72 inches. Standard
set includes top and bottom valves with EPDM
glass packing, ¼” needle drain valve in lower arm,
glass and rods.
FEATURES
1/4” Drain Valve
Glass Insertion Port Option
Ball Checks Option
Sizes 3/8”, 1/2”
Chrome Plate Option
Canadian Registration 0F6616.5C
MATERIALS
Body: ASTM B584 C84400 Bronze
Drain Body: ASTM B16 Brass
Stem: ASTM B16 Brass
Gland Nut: ASTM B16 Brass
Packing Nut: ASTM B16 Brass
Rods Steel
DIMENSIONS
1.50
.56
.53
1.25
PERFORMANCE RATING
20-700: 125 psig @ 350°F, 300 psig @ 100°F
(Subject to the limitation of the gauge glass)
OPTIONS
Body Glass Port Standard
Drain type:
Checks:
Pipe Size:
Chrome Plate
Glass Type:
20-710
Needle Ball Valve
Yes No
3/8” 1/2”
Yes No
Standard High pressure
Redline
Glass OD: 5/8” only
CENTERLINE LENGTH "L"
1.25
1.20
Glass Length: _______ Specify “L” up to 72”
Glass Packing:
Glass Protector:
EPDM (std) Viton Hypalon
Teflon Graphite
Yes No
Conbraco Industries, Inc. 701 Matthews Mint Hill Rd. Matthews NC 28106 USA; www.apollovalves.com ; 704-841-6000
This specification is provided for reference only. Conbraco reserves the right to change any portion of this specification without notice and without incurring obligation to make such changes to Conbraco
products previously or subsequently sold.
SS1084 © 11/08 Page 1 of 1
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