Nibco T-433-B Check Valve - Br...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$276.20
Nibco T-433-B Check Valve - Bronze, Bronze Disc, Threaded Ends

Nibco T-433-B Check Valve - Bronze, Bronze Disc, Threaded Ends

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Model: NL7J00A

In Stock (leaves warehouse same day if ordered before 3pm ET)

$276.20
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The NIBCO® bronze check valve features threaded end connections for ease of installation. Swing checks may be installed in horizontal positions (or vertical with flow moving up). Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO® check valves for the most specified, versatile and economical valve option in commercial, mechanical and industrial applications. NIBCO® check valves are backed by the NIBCO 5-year 125% limited warranty.

  • 150 psi/10.3 bar saturated steam to 366-DegreeF/185-DegreeC
  • 300 psi/20.7 bar non-shock cold working pressure
  • Y-pattern
  • Renewable bronze disc
  • Regrindable seat
  • Class 150 threaded end connections
  • Use in U.S. drinking water applications is prohibited after January 3, 2014
  • Conforms to MSS SP-80

Check Valve Bronze Swing IOM Manual

Manufacturer Resources

Spec Sheet

Product Specs

All Basic Material:
Bronze
Classification:
Swing Bronze Check Valves
End Connection:
Threaded
Product Group:
Valve
Seat Seal Material:
Bronze
Type of Check Valve:
Swing
Type of Valve:
Check Valve
Valve End Connection Type:
T -- Female NPT Thread (FIPT)
Valve Multi Turn Bonnet Design:
Screw-in Bonnet
Valve Pressure Rating (CWP):
300 PSI / 20.7 Bar CWP
Valve Pressure Rating (SWP):
150 PSI / 10.3 Bar SWP
Valve Trim Package:
Bronze Disc
Product Subgroup:
Valves
Product Type:
Swing Bronze Check Valves
Department:
Plumbing
Country Of Origin:
United States

Nibco NL7J00A – Frequently Asked Questions

1) Can the Nibco T-433-B swing check valve be installed vertically?
The T-433-B bronze swing check installs in horizontal runs, or vertically only when flow moves upward. A swing disc relies on gravity and flow to seat, so mounting it in a downward-flow vertical leg will not let it close properly.
2) Is the Nibco T-433-B check valve approved for potable water?
No. Use of the T-433-B in U.S. drinking water applications is prohibited after January 3, 2014. It is intended for non-potable commercial, mechanical and industrial service such as heating, steam and process lines. For potable water you need a lead-free bronze check valve.
3) What pipe do the T-433-B threaded ends connect to?
Both ends are female NPT (FIPT) threads to Class 150, so they take standard male NPT pipe nipples or threaded adapters. No soldering is involved, which makes it a straightforward swap into an existing threaded line.
4) What pressure and temperature is the Nibco T-433-B bronze check valve rated for?
300 psi / 20.7 bar non-shock cold working pressure, and 150 psi / 10.3 bar saturated steam up to 366 F / 185 C. That steam rating is what makes it usable on low pressure steam and condensate as well as water and air service.
5) What sizes does the Nibco T-433-B come in?
Eight threaded sizes: 1/2, 3/4, 1, 1-1/4, 1-1/2, 2, 2-1/2 and 3 inch. Part numbers run NL7J006 for the 1/2 inch through NL7J00F for the 3 inch, so one model covers branch lines up to 3 inch mains.
6) Can the disc and seat on this bronze swing check be serviced instead of replacing the valve?
Yes. The T-433-B uses a renewable bronze disc and a regrindable seat, reached through a screw-in bonnet. For an MRO shop that means a leaking check can often be rebuilt in place rather than cut out and repiped.
7) Does the Nibco T-433-B meet the MSS SP-80 spec called out on my drawing?
It conforms to MSS SP-80, the standard for bronze gate, globe, angle and check valves, and it is a Class 150 threaded end configuration. That is the spec line most mechanical drawings cite for bronze checks.
8) Should I use a bronze swing check or a spring-loaded silent check valve?
The T-433-B is a Y-pattern swing check with a bronze disc, which gives low pressure drop and handles horizontal lines and upward vertical flow. A swing disc can slam on fast-closing or pulsating systems such as pump discharge with a check valve return; a spring-assisted silent or lift check is the better choice there. For general gravity, steam and process lines a swing check is the simpler, lower-restriction option.
9) Are the disc and seat on the T-433-B metal, or is there a soft seal that limits temperature?
Metal to metal. Both the body material and the seat seal are bronze, with a bronze disc, so there is no elastomer or PTFE seat to set a lower temperature ceiling. That is why the valve carries a 366 F saturated steam rating.
How fast can I get the Nibco NL7J00A delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Nibco NL7J00A come with a warranty?
Absolutely. The Nibco NL7J00A is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Nibco NL7J00A?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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