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Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 0.5
- Size 2:
- 0
- Strength:
- XH
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Caps
- Product Type:
- Cap
- Product Finish:
- Black
- Product Material:
- Malleable Iron
- Product Weight:
- 0.23 lbs
ASC Engineered Solutions 318901303 – Frequently Asked Questions
1) Will this ASC malleable iron cap thread onto 1/2 inch black steel pipe?
Yes. The ASC Engineered Solutions 1/2 inch extra heavy cap has FPT (female pipe thread) ends cut to ASME B1.20.1, the NPT standard, so it screws onto any 1/2 inch male NPT pipe nipple or threaded pipe end. Use pipe dope or PTFE tape on the male threads as usual.
2) Is this ASC 1/2 inch cap UL Listed and FM Approved for a fire sprinkler system?
It carries UL/FM recognition, which is what an inspector looks for when you cap off a branch line or an unused outlet on a sprinkler main. It is a black malleable iron fitting, so it belongs on wet or dry black steel sprinkler pipe, not on a potable water line.
3) Can I use a black malleable iron cap on a domestic water line?
No. Black malleable iron is for gas, fire protection, and general black steel pipe work. Water in an uncoated black fitting rusts it. For potable water you want the galvanized version of the same cap, and lead-free requirements for drinking water generally rule out uncoated black iron entirely. This ASC cap is the black finish.
4) What is the part number and weight on the ASC 1/2 inch black extra heavy cap?
Manufacturer part number 318901303, and each cap weighs 0.23 lbs. Useful if you are pricing out a box for a service truck or figuring freight on a bulk order for a riser build.
How fast can I get the ASC Engineered Solutions 318901303 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 318901303 come with a warranty?
Absolutely. The ASC Engineered Solutions 318901303 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 318901303?
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 318901303 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.