Watts B1156F User Manual
For Residential and Commercial Applications
ES-1156F
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B1156F
1156F-A
Series 1156F
Feed Water Pressure Regulators
Size: 1⁄2" (15mm)
Series 1156F feed water pressure regulators are designed to fill the
boiler and system piping with water and to maintain water pressure
in the system at all times. These valves also provide make up water
to the system in the event of system leaks. Series 1156F features a
high capacity performance as well as unique simplified servicing
accessibility for complete unitized maintenance.
Features
• Choice of inlet connections (threaded, union solder
or union threaded)
•Tight seating check valve
• Purge lever for manual purging
• High capacity
• Stainless steel strainer to protect the valve disc from fouling
Models
1156F – Threaded inlet connection
1156F-A – Threaded inlet connection and
1
⁄
2" NPT female bottom
connection for installation of an expansion tank
S1156F – Union solder inlet connection
T1156F – Union threaded inlet connection
B1156F – Bronze valve body with threaded inlet connection
TB1156F – Bronze valve body with union threaded inlet connection
SB1156F – Bronze valve body with union solder inlet connection
Specifications
A feed water pressure regulator shall be installed on the boiler or
where indicated on the plans to fill boiler piping with water and to
provide make up water in the event of system leaks. The regulator
shall have high capacity performance and a simplified servicing
design. The feed water pressure regulator shall be a Watts
Regulator Company Series 1156F.
Watts product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise measurements,
please contact Watts Technical Service. Watts reserves the right to change or modify product design, construction, specifications, or materials without
prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.
ES-1156F 0329 © Watts Regulator Company, 2003 Printed in U.S.A.
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.wattsreg.com
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscda.com
MODEL SIZE (DN) DIMENSIONS WEIGHT
ABC
in. mm in. mm in. mm in. mm lbs. kgs.
1156F
1
⁄
2
15 31⁄
2
89 53⁄
8
137 – – 2.1 .95
1156F-A
1
⁄
2
15 3
1
⁄
2
89 5
3
⁄
4
146 2
1
⁄
4
57 2.1 .95
T1156F
1
⁄
2
15 4
1
⁄
4
108 5
3
⁄
8
137 – – 2.2 1
S1156F
1
⁄
2
15 41⁄
8
105 53⁄
8
137 – – 2.3 1
B1156F*
1
⁄
2
15 3
1
⁄
2
89 5
3
⁄
8
137 – – 2.1 1
SB1156F*
1
⁄
2
15 4
3
⁄
8
111 5
3
⁄
8
137 – – 2.2 1
TB1156F*
1
⁄
2
15 41⁄
8
105 53⁄
8
137 – – 2.3 1
* Bronze body
Dimensions — Weights
A
B
A
B
C
Pressure – Temperature
Maximum Temperature: 212°F (100°C)
Maximum Working Pressure: 100psi (6.9 bars)
Adjustment Range: 10 – 25psi (68.7 – 172.4 kPa)
set at 15psi (103.4 kPa)
S1156F
1156F-A
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