Buying Guide

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NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227
TECH SERVICES PH: 1.888.446.4226 • FAX: [phone] • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: [phone]
www.nibco.com
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®
Revised 7/20/2018
Bronze Check Valves & Y-Strainers
Illustrated Index
Dezincification
Resistant
Bronze Check Valve
Horizontal Swing
125 lb. SWP
200 lb. CWP
T or S-413-B or V, W, Y
Bronze or Various Non-Metallic Discs
Regrinding Type • Y-Pattern
Sizes ¹⁄₄" thru 3"
Threaded or Solder Ends
Page 31
Bronze Check Valve
Horizontal Swing
150 lb. SWP
300 lb. CWP
T or S-433-B or Y
Bronze or PTFE Discs
Regrinding Type • Y-Pattern
Sizes ¹⁄₄" thru 3"
Threaded or Solder Ends
Page 32
Bronze Check Valve
Horizontal Swing
150 lb. SWP
300 lb. CWP
S-433-B
Bronze Disc
Regrinding Type • Bolted Bonnet
Size 4"
Solder Ends
Page 33
Bronze Check Valve
Horizontal Swing
200 lb. SWP
400 lb. CWP
T-453-B
Bronze Disc
Regrinding Type • Y-Pattern
Sizes ¹⁄₄" thru 3"
Threaded Ends
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Bronze Check Valve
Horizontal Swing
300 lb. SWP
600 lb. CWP
T-473-B or Y
Bronze or PTFE Disc
Regrinding Type • Y-Pattern
Sizes ¹⁄₄" thru 2"
Threaded Ends
Page 35
Bronze Silent Check Valve
Ring Check Design • Spring Actuated
125 lb. SWP, 250 lb. CWP (TFE Disc)
250 lb. SWP (Buna-N Disc)
T or S-480
Buna-N or PTFE Disc (Y-suffix)
Sizes ³⁄₈" thru 2"
Threaded or Solder Ends
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Bronze Y-Strainer
Solid Cap
125 lb. SWP
200 lb. CWP
T/S-221/222-B
304 SS 20 Mesh or
Perforated Screen
Sizes ¹⁄₄" thru 3"
Threaded or Solder Ends
Page 37
Bronze Y-Strainer
Tapped Cap w/Blow-off Plug
125 lb. SWP
200 lb. CWP
T/S-221/222-A
304 SS 20 Mesh or
Perforated Screen
Sizes ¹⁄₄" thru 3"
Threaded or Solder Ends
Page 37
NOTE: Check valves should never be installed immediately adjacent to a pump discharge or change in direction. Check Valves
should be installed downstream from all sources of line turbulence, including fittings and valves, at a minimum of 5x the nominal
pipe diameter (preferably 10x) with straight piping to provide laminar flow.