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Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 0.5
- Size 2:
- 0.5
- Strength:
- XH
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Other Fittings
- Product Type:
- Fitting
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 0.4 lbs
ASC Engineered Solutions 310538400 – Frequently Asked Questions
1) Will this ASC Engineered Solutions 1/2 inch black malleable iron coupling thread onto standard 1/2 inch black steel pipe?
Yes. Both ends of the coupling are 1/2 inch FPT (female pipe thread) cut to ASME B1.20.1, which is the standard NPT thread used on black steel and galvanized pipe. Any 1/2 inch NPT male pipe end or nipple threads straight in.
2) Can I use a black malleable iron coupling on a potable water line?
No. Black malleable iron is for gas, fire protection, steam, air, and non-potable service. The black finish carries no corrosion protection for water, so for domestic water you want galvanized, copper, or brass instead. For potable systems check your local code for lead-free requirements as well.
3) What does XH mean on a 1/2 inch malleable iron coupling, and when do I need it instead of standard weight?
XH is extra heavy, meaning a thicker wall and a higher pressure rating than standard (150) class malleable iron. Use it where the system pressure or mechanical loading exceeds what a standard coupling handles, such as higher pressure steam, compressed air, or heavier industrial service. Pressure ratings and dimensions both follow ASME B16.3.
4) Is this coupling a reducer, or is it the same size on both ends?
Straight coupling, 1/2 inch on both ends. Both connections are 1/2 inch FPT, so it joins two same size pipe ends. If you need to step down from 1/2 inch to 3/8 or 1/4, you want a reducing coupling or a bushing instead.
5) What is the part number and weight for the ASC Engineered Solutions 1/2 inch extra heavy black coupling?
The manufacturer part number is 310538400 and it weighs 0.4 lbs. Useful if you are ordering by the case for an MRO stockroom and need to figure shipping weight or bin allocation.
6) Do I need thread sealant with this malleable iron coupling, or does it seal on its own?
It needs sealant. The ends are tapered NPT female threads per ASME B1.20.1, which seal by thread interference plus pipe dope or PTFE tape rated for the service, gas rated tape for fuel gas lines. No gasket or O-ring is part of the coupling.
How fast can I get the ASC Engineered Solutions 310538400 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 ASC Engineered Solutions 310538400 come with a warranty?
Absolutely. The ASC Engineered Solutions 310538400 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 ASC Engineered Solutions 310538400?
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selection,
installation tips, and troubleshooting. Contact Us
Why buy the ASC Engineered Solutions 310538400 from ZenSupply?
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and
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every order.
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