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11/2 GALV MI CROSS
Manufacturer Resources
Product Specs
- Dimensions Specification:
- ASME B16.3
- End Conn Size 1:
- FPT
- End Conn Size 2:
- FPT
- End Conn Size 3:
- FPT
- End Conn Size 4:
- FPT
- Finish Specification:
- ASTM A-153
- Material Specification:
- ASTM A-197
- Pressure Rating Specification:
- ASME B16.3
- Size 1:
- 1.5
- Size 2:
- 1.5
- Size 3:
- 1.5
- Size 4:
- 1.5
- Strength:
- STD
- Thread Specification:
- ASME B1.20.1
- Ul Fm:
- Yes
- Department:
- Plumbing
- Product Group:
- Pipe Fittings
- Product Subgroup:
- Crosses
- Product Type:
- Cross
- Product Finish:
- Galvanized
- Product Material:
- Malleable Iron
- Product Weight:
- 2.05 lbs
ASC Engineered Solutions 311070601 – Frequently Asked Questions
1) Are all four openings on the ASC 1-1/2 inch galvanized malleable iron cross the same size?
Yes, it's a straight 1-1/2 inch cross. All four outlets are 1-1/2 inch female pipe thread, so any of the four run and branch connections takes 1-1/2 inch threaded pipe or a 1-1/2 inch male nipple. There is no reducing outlet on this fitting.
2) Is this cross approved for use in a fire sprinkler system?
It carries UL/FM approval, so it can be used on fire protection piping where UL Listed and FM Approved fittings are specified. It's standard weight malleable iron built to ASME B16.3 for dimensions and pressure rating, which is the usual class for threaded sprinkler branch and cross main work at this size.
3) Is a galvanized malleable iron cross OK for a wet sprinkler system or exposed outdoor piping?
The galvanized coating is a hot-dip finish to ASTM A-153, which is the spec written for zinc coating on iron hardware and is what you want for wet-pipe sprinkler systems, damp locations, and exposed runs where a black iron fitting would rust. For dry interior gas or black steel systems, the black malleable version of the same cross is the usual choice.
4) What is the difference between using a cross and two tees back to back?
A cross gives you four outlets off one body, so a straight run plus two opposed branches taken from a single fitting. Two tees do the same job but add length to the run and a nipple between them. On sprinkler work the cross is often called out because it keeps the branch takeoffs on the same centerline and cuts a joint out of the assembly. This one is 1-1/2 inch on all four ends, standard weight, threaded.
5) How much does the 1-1/2 inch galvanized malleable cross weigh, and does that matter for hanger spacing?
It weighs 2.05 lbs. That's worth counting when you're figuring hanger placement on a branch line, since a cross plus four made-up joints concentrates load at one point. Put a hanger near the fitting rather than midway between it and the next support.
6) What is the ASC part number for the 1-1/2 inch galvanized malleable iron cross?
The manufacturer part number is 311070601, from ASC Engineered Solutions. Give that number when you're matching a submittal or reordering to keep a job standardized on one fitting.
7) Is malleable iron the right material here, or should I be using cast iron or steel?
Malleable iron to ASTM A-197 is the standard body material for threaded pipe fittings in this size range. It takes thread cutting and the shock of makeup better than grey cast iron, and it's what ASME B16.3 is written around. Cast iron drainage fittings are a different animal and are not a substitute on a pressure line.
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