Nibco F-667-O Gate Valve - Cla...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$30,434.20
Nibco F-667-O Gate Valve - Class 250, Cast Iron, Outside Screw and Yoke, Flanged

Nibco F-667-O Gate Valve - Class 250, Cast Iron, Outside Screw and Yoke, Flanged

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Model: NHAW00M

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

$30,434.20
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The NIBCO® flanged cast iron gate valve may be used in commercial and industrial applications, including hot and cold water, HVAC, steam, gas and other general utility services. Please refer to NIBCO technical data sheets, chemical resistance guides and catalogs for engineering and installation information. Choose NIBCO® gate valves for the most specified, versatile and economical valve option in commercial, mechanical and industrial applications. NIBCO® valves are backed by the NIBCO 5-year 125% limited warranty.

  • 250 psi/17.2 bar saturated steam to 406-DegreeF/207-DegreeC
  • 500 psi/34.5 bar non-shock cold working pressure
  • Outside screw and yoke
  • Bolted bonnet
  • Solid wedge
  • Iron body bronze mounted (IBBM)
  • Class 250 flanged end connections
  • Use in U.S. drinking water applications is prohibited after January 3, 2014
  • Conforms to MSS SP-70
  • Approved by the New York City BSA 143-69-SA at 350 psi non-shock cold water

Iron Gate Valves IOM Manual

Manufacturer Resources

Product Specs

All Application(s):
Fire Protection
All Basic Material:
Cast Iron
Classification:
Cast Iron Gate Valves
End Connection:
Flanged
Product Group:
Valve
Seat Seal Material:
Bronze
System Use:
Commercial Plumbing, Heating, HVAC, Industrial, Pulp & Paper
Type of Valve:
Gate Valve
Valve End Connection Type:
F -- Flanged
Valve Gate Stem Design:
Outside Screw and Yoke
Valve Multi Turn Bonnet Design:
Bolted Bonnet
Valve Pressure Rating (CWP):
500 PSI / 34.5 Bar CWP
Valve Pressure Rating (SWP):
250 PSI / 17.2 Bar SWP
Product Subgroup:
Flanges
Product Type:
Cast Iron Gate Valves
Department:
Plumbing

Nibco NHAW00M – Frequently Asked Questions

1) Will the Nibco F-667-O gate valve bolt up to Class 250 cast iron flanges?
Yes. The F-667-O is built with Class 250 flanged end connections, so it mates to a Class 250 cast iron flange bolt pattern. It will not line up with a Class 125 flange drilling, so check the mating flange class on the line before you order. Sizes run 2, 2-1/2, 3, 4, 5, 6, 8 and 10 inch.
2) Can I use this Nibco iron gate valve on a potable water line?
No. Use of the F-667-O in U.S. drinking water applications is prohibited after January 3, 2014. Put it on HVAC, steam, gas, fire protection and general utility service instead, and specify a lead-free rated valve for anything potable.
3) Is the Nibco F-667-O acceptable for a fire protection riser in New York City?
It is approved by the New York City BSA under 143-69-SA at 350 psi non-shock cold water, and fire protection is listed among its applications. Confirm the approval covers the specific service your AHJ is reviewing.
4) Why choose an outside screw and yoke gate valve over a rising stem inside screw type?
With OS&Y, the stem threads sit outside the flow path, so they stay clear of the line media and the yoke gives you a visible open/closed indication from across the mechanical room. That is why OS&Y is the standard call on fire protection risers and steam service. The F-667-O is OS&Y with a bolted bonnet, which means the bonnet can be unbolted for stem and wedge service in place rather than cutting the valve out.
5) What are the internal trim materials on this cast iron gate valve?
Iron body bronze mounted (IBBM): cast iron body with bronze seating. The seat seal material is bronze and the closure is a solid wedge, which handles throttling shock and higher differential pressure better than a flexible or split wedge in steam service.
6) Does the Nibco F-667-O meet MSS SP-70 for iron gate valves?
Yes, the F-667-O conforms to MSS SP-70, the standard engineers typically cite on cast iron gate valve submittals.
7) Which Nibco part number do I order for a 6 inch Class 250 flanged OS&Y gate valve?
The 6 inch F-667-O carries MPN NHAW00K. Other sizes in the family: 2 inch NHAW00D, 2-1/2 inch NHAW00E, 3 inch NHAW00F, 4 inch NHAW00H, 5 inch NHAW00J, 8 inch NHAW00L, 10 inch NHAW00M. Pipe size is the only thing you specify.
8) Can this gate valve be used to throttle flow in a chilled water or process line?
Gate valves are isolation devices, not throttling devices. Run the F-667-O fully open or fully closed; partial opening wears the solid wedge and seats. For modulating duty on the same Class 250 flanged line, use a globe or butterfly valve. The F-667-O suits commercial plumbing, heating, HVAC, industrial and pulp and paper isolation service.
How fast can I get the Nibco NHAW00M 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 NHAW00M come with a warranty?
Absolutely. The Nibco NHAW00M 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 NHAW00M?
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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