Submittal Sheet

ES-F-850S
SPECIFICATION SHEET
FEBCO product specifications in U.S. customary units and metric are approximate and are provided for reference only. For precise mea-
surements, please contact FEBCO. FEBCO 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 FEBCO products previously or subse-
quently sold.
Job Name
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Contractor
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Job Location
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Approval
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Engineer
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Contractor’s P.O. No.
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Approval
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Representative
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Series 850
Double Check Valve Assemblies
Size:
1
⁄2" - 2" (15mm - 50mm)
The FEBCO Series 850 Double Check Valve Assemblies are designed for
non-health hazard applications. End Connections – NPT ANSI / ASME B1.20.1
Pressure – Temperature
Max. Working Pressure: 175psi (12.1 bar)
Hydrostatic Test Press: 350psi (24.1 bar)
Temperature Range: 32°F to 140°F (0°C to 60°C)
Materials
Valve Body: Bronze
Elastomers: Silicone
Springs: Stainless Steel
Models
• Wye - Strainer
Approvals – Standards
• ANSI/AWWA Conformance (C510-92)
• Approved by the Foundation for Cross-Connection Control and Hydraulic
Research at the University of Southern California.
Typical Installation
Series 850
Series 850
1
⁄2" - 2" (15-50mm)
Outdoor Installation
Flow
12" (300mm) Minimum
Clearance
to Fixed Structure
12" Min.
(300mm)
kPa psi
138 20
103 15
69 10
34 5
0 0
2" (50mm)
0 30 60 90 120 150 180 gpm
0 114 227 341 454 570 681 lpm
HEADLOSS (PSI)
kPa psi
138 20
103 15
69 10
34 5
0 0
1
1
⁄2" (40mm)
0 20 40 60 80 100 120 gpm
0 76 152 227 303 379 454 lpm
HEADLOSS (PSI)
kPa psi
138 20
103 15
69 10
34 5
0 0
1
1
⁄4" (32mm)
0 20 40 60 80 100 120 gpm
0 76 152 227 303 379 454 lpm
HEADLOSS (PSI)
kPa psi
138 20
103 15
69 10
34 5
0 0
1" (25mm)
0 10 20 30 40 50 60 gpm
0 38 76 114 152 190 227 lpm
HEADLOSS (PSI)
kPa psi
138 20
103 15
69 10
34 5
0 0
3
⁄4" (20mm)
0 5 10 15 20 25 30 gpm
0 19 38 57 76 95 114 lpm
HEADLOSS (PSI)
kPa psi
138 20
103 15
69 10
34 5
0 0
1
⁄2" (15mm)
0 3 6 9 12 15 18 gpm
0 11 23 34 45 57 68 lpm
HEADLOSS (PSI)
Capacity
1015 B64.5