Buying Guide
36
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: 1.888.336.4226 • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: +1.574.295.3455
www.nibco.com
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www.nibco.com
AHEAD OF THE FLOW
®
Revised 7/20/2018
Class 125 Bronze Ring Check
®
Valves
Inline Lift Type • Resilient Discs • Spring Actuated
125 PSI/8.6 bar saturated steam to 353° F/178° C (PTFE Disc)
250 PSI/17.2 bar non-shock cold working pressure
T-480
Threaded
S-480
Solder
T-480-Y (PTFE Disc)
NPT x NPT
S-480-Y (PTFE Disc)
C x C
MATERIAL LIST
PART SPECIFICATION
1. Body Bronze ASTM B584 Alloy C84400
2. Stem Stainless Steel ASTM A 582 Alloy C30300
3. Spring 316 Stainless Steel
4. Disc Holder Stainless Steel Type 301
5. Disc Water, Oil or Gas (Buna-N) Steam (PTFE) (Y)
6. Seat Screw Stainless Steel ASTM A276 Alloy S43000
7. Body End Bronze ASTM B584 Alloy C84400
DIMENSIONS—WEIGHTS—QUANTITIES
Dimensions
Size A B C T-480 S-480
Master
In. mm. In. mm. In. mm. In. mm. Lbs. mm. Lbs. Kg. Ctn. Qty.
³⁄₈ 10 2.00 51 1.38 35 1.44 37 0.41 0.19 0.44 0.20 100
¹⁄₂ 15 2.06 52 1.38 35 1.19 30 0.36 0.16 0.40 0.18 100
³⁄₄ 20 2.25 57 1.63 41 1.31 33 0.48 0.22 0.52 0.24 100
1 25 2.63 67 2.00 51 1.50 38 0.77 0.35 0.85 0.39 50
1 ¹⁄₄ 32 2.94 75 2.38 60 1.69 43 1.14 0.51 1.28 0.58 30
1 ¹⁄₂ 40 3.31 84 2.75 70 2 .00 51 1.63 0.74 1.75 0.79 30
2 50 3.69 94 3.38 86 2.31 59 2.27 1.03 2.70 1.23 10
Ordering: The T-480 and S-480 both have standard Buna-N Discs.
Also available with PTFE (Y) Discs; specify T-480-Y or S-480-Y.
³⁄₈" thru 2" require ¹⁄₂ pound pressure to open.
Install 5 pipe diameters minimum downstream from pump discharge or changes in direction to
avoid flow turbulence. Flow straighteners may be required in extreme cases.
Note: On pump discharge, the preferred check valves are:
- inline, spring assisted, center-guided, lift checks.
NIBCO
®
Check Valves may be installed in both horizontal and vertical lines with upward flow or
in any intermediate position.
Warning – Do Not Use For Reciprocating Air Compressor Service.
t For detailed Operating Pressure, refer to Pressure Temperature Chart on page 114.
Dezincification
Resistant
DIMENSIONS—WEIGHTS —QUANTITIES
WARNING: This product can expose you to chemicals including lead, which is known
to the State of California to cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.