Buying Guide

THE QUIET WAY TO ZONE
FIXED-SPEED SYSTEMS
• Eliminates noise in a zoned hydronic system
with xed-speed primary circulator pump
• Protects system components
• Maintains system efciency
• Prevents over-pumping of zones
• Installs between the boiler supply and return
lines, or between zone legs in larger systems
• Installs in any orientation
• Customize with G-Union Accessories
Under partial loads, the
DPBV opens to ensure
quiet operation and
appropriate pressures
at the boiler circulator.
With all zones active, the
DPBV remains closed
Off
On
Off
On
FORGED BRASS DIFFERENTIAL PRESSURE BY-PASS VALVE
Opening Differential Pressure Setting
Adjustable from 1.5 to 9 PSI
STANDARD BRASS
SIZE MAX GPM ITEM# CTN/CASE CASE WT
FIP 145 PSI CWP Max/230ºF Max
3/4" 9 H-74533 1/36 25
1" 18 H-74544 1/36 31
MIP
3/4" 9 H-72533 1/36 25
1" 18 H-72544 1/36 31
SWT
3/4" 9 H-75533 1/36 25
1" 18 H-75544 1/36 31
Press
3/4" 9 H-78533 1/36 25
1" 18 H-78544 1/36 31
BODY ONLY - INSTALL W/(2) G-UNION FITTINGS
G-Thread
1" 9 H-70530 1/36 25
1" 18 H-70540 1/36 31
FORGED BRASS ANGLED DIFFERENTIAL
PRESSURE BY-PASS VALVE
Opening Differential Pressure Setting
Adjustable from 1.5 to 9 PSI
STANDARD BRASS
SIZE MAX GPM ITEM# CTN/CASE CASE WT
FIP 145 PSI CWP Max/230ºF Max
3/4" 9 H-74533-A 1/36 22
1" 18 H-74544-A 1/36 28
MIP
3/4" 9 H-72533-A 1/36 22
1" 18 H-72544-A 1/36 28
SWT
3/4" 9 H-75533-A 1/36 22
1" 18 H-75544-A 1/36 28
Press
3/4" 9 H-78533-A 1/36 22
1" 18 H-78544-A 1/36 28
BODY ONLY - INSTALL W/ (2) G-UNION FITTINGS
G-Thread
1" 9 H-70530-A 1/36 22
1" 18 H-70540-A 1/36 28
DIFFERENTIAL PRESSURE
BY-PASS VALVE
CHECK VALVES
PROPUSH IN-LINE SPRING CHECK VALVE
Forged DZR Brass Fitting • For Connection to Copper, CPVC or PEX
LEAD-FREE BRASS
Certied to NSF/ANSI 61 & 372,
ASSE 1061
SIZE ITEM# CTN/CASE CASE WT
Push 200 PSI CWP Max/200ºF Max
1/2" H-26992W-B 6/120 20
3/4" H-26993W 12/120 39
1" H-26994W-B 3/45 25
FORGED DZR BRASS IN-LINE SPRING CHECK VALVE
Stainless Steel Spring • Soft Seat
LEAD-FREE BRASS
Certied to NSF/ANSI 61 & 372
SIZE ITEM# CTN/CASE CASE WT
Press 200 PSI CWP Max/250ºF Max
1/2" H-10782W 10/60 37
3/4" H-10783W 10/40 33
1" H-10784W 6/24 31
1 1/4" H-10785W 6/12 25
1 1/2" H-10786W 6/12 32
2" H-10787W 1/6 23
FIP 200 PSI CWP Max/250ºF Max
3/8" H-10741W 10/100 19
1/2" H-10742W 10/100 30
3/4" H-10743W 10/60 31
1" H-10744W 10/40 29
1 1/4" H-10745W 6/24 24
1 1/2" H-10746W 6/24 29
2" H-10747W 6/12 22
SWT 200 PSI CWP Max/250ºF Max
3/8" H-10751W 10/100 19
1/2" H-10752W 10/100 30
3/4" H-10753W 10/60 31
1" H-10754W 10/40 29
1 1/4" H-10755W 6/24 24
1 1/2" H-10756W 6/24 29
2" H-10757W 6/12 22
FORGED BRASS SWING CHECK VALVE
Hard Seat
LEAD-FREE BRASS
Certied to NSF/ANSI 61-G
SIZE ITEM# CTN/CASE CASE WT
FIP 200 PSI CWP MAX/125 WSP
1/4" H-10540W 12/120 27
3/8" H-10541W 10/120 35
1/2" H-10542W 10/120 49
3/4" H-10543W 10/80 49
1" H-10544W 5/60 51
1 1/4" H-10545W 5/40 56
1 1/2" H-10546W 5/30 60
2" H-10547W 2/12 34
2 1/2" H-10548W 2/8 38
3" H-10549W 1/8 61
4" H-10550W 1/4 47
SWT 200 PSI CWP Max/125 WSP
1/2" H-10622W 10/120 50
3/4" H-10623W 10/80 51
1" H-10624W 5/60 54
1 1/4" H-10625W 5/40 59
1 1/2" H-10626W 5/30 63
2" H-10627W 2/10 31
24 WWW.WEBSTONEVALVES.COM
WARNING: Cancer and Reproductive
Harm - www.P65Warnings.ca.gov
LEAD-FREE: Weighted
average lead content ≤ 0.25%