Watts 77F-BI User Manual
Series 77f-bi, Bronze, flanged, wye-pattern strainers, For commercial and industrial applications
Series 77F-BI
Bronze, Flanged, Wye-Pattern
Strainers
Sizes: 2" – 8" (50 - 200mm)
Series 77F-BI Bronze, Flanged, Wye-Pattern Strainers are used
in liquid and steam applications. Series 77F-BI are furnished
with blowdown connections and machined seat that allows the
screen to be self-aligning and assures a perfect fit. All sizes
come with a bolted screen retainer cover and PTFE gasket.
The screen retainer cover is NPT tapped for a blowdown plug
that is provided. The strainer is easily cleaned by removing
the blowdown plug or opening a blowdown valve piped to the
blowdown outlet. Series 77F-BI can be installed in horizontal or
vertical pipe with the blowdown connection at the lower end of
the screen retainer cover.
Features
• Class 150 bronze body
• Flanged wye-pattern
• Self-aligning stainless steel screen
• Screen retainer cover tapped and plugged
Pressure (Non-Shock)-Temperature
Maximum Working Pressure:
150psi (10.3 bar) at 406°F (208°C) WSP
225psi (15.5 bar) at 150°F (66°C) WOG
Materials
Body:
ASTM B-62 cast bronze
Plug:
ASTM B-62 cast bronze
Screen:
304 stainless steel
Screen Cover:
ASTM B-62 cast bronze
Gasket:
PTFE
For Commercial and Industrial Applications
ES-77F-BI
Job Name –––––––––––––––––––––––––––––––––––––––––––
Contractor ––––––––––––––––––––––––––––––––––––––––––––
Job Location –––––––––––––––––––––––––––––––––––––––––
Approval –––––––––––––––––––––––––––––––––––––––––––––
Engineer –––––––––––––––––––––––––––––––––––––––––––––
Contractor’s P.O. No. ––––––––––––––––––––––––––––––––––
Approval –––––––––––––––––––––––––––––––––––––––––––––
Representative ––––––––––––––––––––––––––––––––––––––––
No. 77F-BI
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 with-
out prior notice and without incurring any obligation to make such changes and modifications on Watts products previously or subsequently sold.