Watts FBVS-3C-SS User Manual
For Commercial and Industrial Applications
ES-FBV-3C-SS
Job Name
Job Location
Engineer
Approval
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Series FBV-3C-SS,
FBVS-3C-SS
2-Piece, Full Port, Brass Ball Valves
Sizes: 1/2" – 2" (15-50mm)
Series FBV-3C-SS, FBVS-3C-SS 2-Piece, Full Port, Brass Ball
Valves are used in commercial and industrial applications for
a full range of liquids and gases. They feature a bottom-loaded
blowout-proof stem, virgin PTFE seats, thrust washer, and
adjustable stem packing gland, stem packing nut, 304
stainless steel ball, brass adapter, and steel handle.
Features
• 304 stainless steel ball and stem
• Suitable for a full range of liquids and gases
• Minimal pressure drop due to full size ports
• Bottom loaded, blow-out proof stem
• Virgin PTFE stem packing seal, thrust washer and seats
• Vinyl insulator on heavy duty, zinc plated carbon
steel handles
• Quarter-turn open or close operation
• Excellent for throttling and balancing applications
of nonabrasive fluids where minimum flow is
20% to 100% of valve capacity
• Low operating torque
• Adjustable stem packing gland
Contractor
Approval
Contractor’s P.O. No.
Representative
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Gas Approvals (Threaded Valves Only)
FBV-3C-SS
approved
FBVS-3C-SS*
Models
FBV-3C-SS 1/2" – 2" (15-50mm) with threaded connections
FBVS-3C-SS
1
/2" – 2" (15-50mm) with solder connections*
ASME B16.33, CSA
1
/2psig and 5psig (14 and 34 kPa) @ -40° F – 125° F (-40° C - 52° C)
125psig (8 bars) @ -40° F – 400° F (-40° C - 204° C)
Pressure – Temperature
Temperature Range: -40° F – 400° F (-40° C – 204° C)
Pressure Ratings:
600psi (41 bars) WOG non-shock
150psi (10.3 bars) WSP
Approvals
FBV-3C-SS UL/FM Approved
FBVS-3C-SS UL Listed
Valves comply with MSS-SP-110 standards
*This valve is designed to be soft soldered into lines without disassembly,
using a low temperature solder to 420°F (216°C). Higher temperature solders may damage the seat material. Apply heat with the flame directed
AWAY from the center of the valve body. Excessive heat can harm the
seats. After soldering, the packing nut may have to be tightened.
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.
approved
Specifications
Approved valves shall be 2-piece and constructed of forged
brass body and end adapter. Ball shall be full port, 304 stainless
steel. Seats and stem packing shall be virgin PTFE. Stem shall
be 304 stainless steel with adjustable stem packing nut threaded
to body to prevent stem leakage if lever removed. Valves shall be
rated to 600psi WOG (41 bars) and 150psi WSP (10.3 bars), and
comply with MSS-SP-110, CSA, ANSI B16.33 or B16.38 where
applicable. Valve shall be a Watts Regulator Company Series
FBV-3C-SS (threaded) or FBVS-3C-SS (solder).
Materials
A
B
C
D
I
H
E
F
A. Handle Nut - Zinc plated carbon steel
B. Handle - Zinc plated carbon steel
with vinyl insulator
C. Packing Nut - Brass
D. Stem Packing - Virgin PTFE
E. Thrust Washer - Virgin PTFE
F. Stem - 304 stainless steel
G. O-ring - Fluorocarbon elastomer (FKM)
H. Body - Forged brass
I. Seats - Virgin PTFE
J. Ball - 304 stainless steel
K. Adaptor - Forged brass
J
I
K
G
Flow Curves
Temperature/Pressure Rating
Dimensions-Weights
H
C
I
L
SIZE (DN) DIMENSIONS WEIGHT
C H H1
in. mm in. mm in. mm in. mm in. mm in. mm in. mm lbs. kg.
1
⁄2 15 115⁄16 50 35⁄8 91 35⁄8 91
3
⁄4 20 21⁄16 52 41⁄2 114 41⁄2 114
1 25 2
1
1
⁄4 32 25⁄8 66 415⁄16 125 415⁄16 125 11⁄4 31.0 311⁄16 90 37⁄8 98 2.0 .9
1
1
⁄2 40 215⁄16 75 51⁄2 140 51⁄2 140 11⁄2 39.0 37⁄8 99 43⁄8 112 2.6 1.2
2 50 3
FBV-3C-SS
7
⁄16 62 415⁄16 125 415⁄16 125 1 25.0 31⁄8 80 33⁄8 86 1.4 .6
1
⁄8 80 77⁄8 200 77⁄8 200 2 50.0 47⁄16 113 55⁄16 135 4.0 1.8
I
L1
H1
C
FBVS-3C-SS
I
L L1
19
⁄32 12.5 23⁄8 60 21⁄8 53 .5 .2
13
⁄16 20.0 211⁄16 68 213⁄16 72 .8 .3
Water Safety & Flow Control Products
Canada: 5435 North Service Rd., Burlington, ONT. L7L 5H7; www.wattscanada.ca
USA: 815 Chestnut St., No. Andover, MA 01845-6098; www.watts.com
ES-FBV-3C-SS 0742 ©Watts Regulator Company, 2007
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