Nibco T45D2-V Ball Valve - Thr...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$593.94
Nibco T45D2-V Ball Valve - Threaded, True Union, 3-Way 2-Position Diverter, PVC Schedule 80, FKM

Nibco T45D2-V Ball Valve - Threaded, True Union, 3-Way 2-Position Diverter, PVC Schedule 80, FKM

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Model: MA975AA

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

$593.94
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The original Chemtrol® True Union design allows the valve and operational components to be conveniently lifted from the piping system for repair or replacement. No disruption or length change of connected piping is required. The valve can be easily joined with the threaded end connections. Please refer to Chemtrol technical data sheets, valve selection guides and catalogs for engineering and installation information. PVC Schedule 80 exhibits excellent corrosion resistance properties and has the highest long-term hydrostatic strength of any other major thermoplastic material used for piping systems. Chemtrol® PVC valves are lightweight, easy to install, maintenance-free, and will not rust, scale, pit or corrode. Choose Chemtrol® valves for the most reliable, versatile and economical valve option in commercial and industrial applications. Chemtrol® valves are backed by a 1-year limited warranty. Because Chemtrol® is a NIBCO brand the flow-control valves are unsurpassed in quality, performance and longevity.

  • Valve pressure rating 150 psi at 73-DegreeF water non-shock full-port
  • Maximum service temperature 140-DegreeF
  • True Union design
  • Diverter
  • FKM O-ring
  • Female NPT threaded end connections
  • Orange handle
  • Do not use or test with compressed air or other gases
  • ASTM F1970
  • NSF/ANSI Standard 14
  • NSF/ANSI/CAN-61

POE Warning - Plastics Incompatibility

Manufacturer Resources

Product Specs

All Application(s):
Lead-Free
All Basic Material:
PVC - Polyvinyl Chloride
Classification:
PVC Multiport and Diverter Valves
End Connection:
Threaded
Pipe Schedule:
80
Plastic End Connection Type:
F (NPT)
Product Group:
Valve
Seat Seal Material:
FKM Fluoroelastomer
System Use:
Commercial Plumbing, Industrial, Irrigation, Lead Free*
Type of Valve:
Ball Valve
Product Subgroup:
Unions
Product Type:
PVC Multiport and Diverter Valves
Department:
Plumbing
Product Color:
Dark Grey

Nibco MA975AA – Frequently Asked Questions

1) Can a Nibco T45D2-V 3-way diverter valve be serviced without cutting the pipe?
No pipe cutting needed. The T45D2-V uses the Chemtrol True Union design, so the valve body and its operating components lift straight out of the run for repair or replacement with no disruption and no length change to the connected piping. That is the practical reason to spend on a true union over a solvent-welded three-way: on a chemical feed or irrigation header you can rebuild the ball and seals in place instead of rebuilding a section of pipe.
2) What does the 2-position diverter on the T45D2-V actually do with flow?
It switches flow between two outlets rather than blending them. A 2-position diverter sends the inlet to one port or the other at the handle stops, which is how you swap between two filters, two tanks, or two irrigation zones from a single body instead of plumbing two separate shutoffs and a tee. It is a ball valve, so the port is full-port at the rated condition, not a reduced throttling trim.
3) What pipe sizes does the Nibco T45D2-V threaded diverter valve come in?
Six sizes: 1/2, 3/4, 1, 1-1/4, 1-1/2 and 2 inch, ordered as MA975A6, MA975A8, MA975AA, MA975AB, MA975AC and MA975AD respectively. All six share the same female NPT threaded ends, so the size you pick is the size of the thread you are landing on.
4) Will the T45D2-V thread onto my existing metal or PVC male NPT pipe, or do I need to solvent weld it?
It threads on. All three ports are female NPT, so it mates with male NPT nipples or male adapters in the matching size, no cement and no socket prep. That makes it the right choice where the run has to come apart, or where you are tying into existing threaded pipe. If your run is plain Schedule 80 socket pipe, you will need male adapters, or a socket-end version of the valve instead.
5) What is the pressure and temperature limit on the Nibco T45D2-V PVC diverter valve?
150 psi on water at 73 F, non-shock, full-port, with maximum service temperature of 140 F. PVC de-rates as it warms, so treat 150 psi as a 73 F number, not a 140 F number. If your line runs hot water, steam condensate, or anything above 140 F, this valve is the wrong material for the job.
6) Can I use this PVC diverter valve on compressed air or a gas line?
No. The T45D2-V is explicitly not to be used or tested with compressed air or other gases, water service only. That includes air-testing the line it sits in, which is where most people get caught: a pneumatic test on a PVC system can fail the plastic destructively. Hydrostatic test it instead, and pick a metal valve if the service itself is air or gas.
7) Is this Nibco diverter valve approved for potable water?
It is certified to NSF/ANSI Standard 14 and NSF/ANSI/CAN 61, and listed as a lead-free application, which is the certification set specifiers ask for on potable systems. It also carries ASTM F1970 for thermoplastic special-engineered fittings. Those are the three lines an institutional or municipal submittal usually wants to see.
8) Does the FKM seal on the T45D2-V handle the chemicals in my system?
The seat and seal material is FKM fluoroelastomer, chosen over EPDM where the media is aggressive on rubber, and the body is PVC, which carries excellent corrosion resistance and the highest long-term hydrostatic strength of the major thermoplastics used for piping. One warning matters and Nibco states it outright: polyol ester (POE) and similar fluids are incompatible with plastics, so check your fluid against the POE plastics-incompatibility warning before you commit. Match FKM to your specific media by chemical name, not by category.
9) Is a 3-way diverter valve the right choice, or should I use two separate ball valves?
Use the diverter when flow has to go one way or the other and never both at once, two zones, two filters, duty and standby pumps. One body, one handle, one thing to service, and no chance of an operator leaving both paths open. Two separate two-way valves are the better answer when you need to throttle each leg independently, isolate one leg for service while the other keeps running, or mix the two. The T45D2-V is 2-position, so it is built for the switch, not the blend.
10) Does the T45D2-V suit an irrigation zone header or is it strictly an industrial valve?
Both. Nibco lists it for commercial plumbing, industrial, irrigation and lead-free service, and a 2-position diverter in 1/2 through 2 inch is a natural fit for switching between two irrigation zones or two supply sources off one header. The limits that decide it are the service ones: water only, 140 F maximum, 150 psi at 73 F.
11) Do I need any extra fittings or support to install the Nibco T45D2-V?
The valve is lightweight and joins to the line by threading onto male NPT in the matching size, so no cement and no special tooling. What you supply is the thread sealant and the male adapters or nipples on all three ports if the existing run is socket pipe. Because the true union body is designed to be lifted out, leave enough clearance around the valve and support the pipe either side so the run does not sag when the body comes out for service.
12) What does the Nibco T45D2-V valve look like installed, and can staff spot it on a wall of plumbing?
Dark grey PVC body with an orange handle. That orange is useful in a plant or pump house because it flags the diverter among the grey handles on the rest of the line, so whoever gets called out at 2am finds the one valve that changes the flow path.
How fast can I get the Nibco MA975AA 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 MA975AA come with a warranty?
Absolutely. The Nibco MA975AA 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 MA975AA?
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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