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4 GALV MI COUPLING
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- Finish Specification:
- ASTM A-153
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 4
- Size 2:
- 4
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Couplings
- Product Type:
- Coupling
- Product Finish:
- Galvanized
- Product Material:
- Malleable Iron
- Product Weight:
- 5.84 lbs
ASC Engineered Solutions 311081806 – Frequently Asked Questions
1) What thread type and size does the ASC Engineered Solutions 4 inch galvanized malleable iron coupling take?
Both ends are 4 inch FPT, female taper pipe thread cut to ASME B1.20.1. It joins two lengths of 4 inch threaded pipe, so the mating pipe needs male NPT ends. There is no reducer here, both openings are the same 4 inch size.
2) Is this 4 inch malleable iron coupling UL listed and FM approved for a fire sprinkler main?
Yes, it carries UL/FM recognition, which is what an inspector looks for on threaded fittings in a sprinkler system. It is standard pattern galvanized malleable iron built to ASME B16.3 for both dimensions and pressure class.
3) Will a galvanized malleable iron coupling hold up on a wet or outdoor line?
The galvanizing is hot dip to ASTM A-153, which is the heavier coating spec used for corrosion service, over a malleable iron body made to ASTM A-197. That combination is what gets specified for wet sprinkler systems, outdoor and damp mechanical room piping rather than plain black iron.
4) What part number do I order for the ASC 4 inch galvanized coupling?
The manufacturer part number is 311081806, a single 4 x 4 inch galvanized malleable iron straight coupling. One number covers it, there are no finish or size options to pick.
How fast can I get the ASC Engineered Solutions 311081806 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 ASC Engineered Solutions 311081806 come with a warranty?
Absolutely. The ASC Engineered Solutions 311081806 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 311081806?
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
Why buy the ASC Engineered Solutions 311081806 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.