SIGMA C153 mechanical joint 45 degree bend, item DMB1245, with SIGMA cast on the body

Photos show several fittings and sizes. Your fitting is in the item number.

Item # DMB1290 Questions and answers (5)

C153 Ductile Iron MJ Fittings

Compact mechanical joint fittings, 2 to 64 in., made to ANSI/AWWA C153/A21.53 (2 in. is not included in AWWA C153). Pick the fitting, size, where it is made and the coating.

View price list (PDF)

Rated 350 psi water working pressure at 12 in.
Made to ANSI/AWWA C153/A21.53; standard fittings certified to NSF/ANSI/CAN 61 and NSF/ANSI 372
Every fitting hydrostatically tested and heat coded for traceability
See all specifications

Fitting: Bends

Type: MJ x MJ

Angle: 90°

Size: 12 in.

Made: Import

Need a domestic fitting? Pick Domestic.

Coating: Standard

Cement lined with an asphaltic seal coat inside per AWWA C104, asphaltic seal coat outside.

Your distributor

SIGMA sells through waterworks distributors. Order with item # DMB1290.

Quote from SIGMA

Job location

Sends your quote list to the right regional team.

Quantity

Download the C153 MJ submittal

Need help on the job?

Call 800.999.2550. Real people answer, mid-job too.

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Everything about the 12 in. MJ x MJ 90° bend.

Details, specs, every size and the questions buyers ask. Open what you need.

Product detailsWhat it is, highlights and documents

About C153 MJ fittings

C153 fittings are compact ductile iron fittings. The straight section of the body is left out, so each fitting is shorter and lighter without reducing strength or flow characteristics. Mechanical joint ends take a gland, gasket and T-bolts.

The line covers bends, tees, crosses, wyes, reducers, caps, plugs, sleeves, offsets and adapters. Weights and dimensions for standard fittings are in the catalog.

Highlights

350 psi water working pressure through 24 in., 250 psi from 30 to 48 in., 150 psi from 54 to 64 in.
Standard, bare, FBE, Protecto 401 and zinc options on the price lists
Weights, dimensions and laying lengths for standard fittings in the catalog

Documents

Specifications12 in. MJ x MJ 90° bend · 350 psi

12 in. MJ x MJ 90° bend

Item number	DMB1290
Fitting	Bends, MJ x MJ 90° bend
Size	12 in.
Made	Import
Coating	Standard
Water working pressure	350 psi
Max. MJ joint deflection	5° at 12 in.
Weight, less accessories	108 lb
Crate quantity	12
Catalog page	Page 4 of the C153 MJ catalog
Price list	Import Fittings, effective 1/5/26

Materials

Body	Ductile iron, ASTM A536 Grade 65-45-12, 60-42-10 or 70-50-05
Cement lining (standard)	Double-thickness cement-mortar lining per ANSI/AWWA C104/A21.4
Seal coat (standard)	Asphaltic, inside per AWWA C104 and outside per AWWA C153, NSF 61
Gaskets	SBR per ANSI/AWWA C111/A21.11; EPDM, NBR and CR also available
T-bolts	Low-alloy, corrosion-resistant, high-strength steel per ANSI/AWWA C111/A21.11

Standards and testing

Standard	ANSI/AWWA C153/A21.53, compact ductile iron fittings
Sizes	2 to 64 in. (2 in. is not included in AWWA C153)
Sizes	3 through 48 in., in most fitting types
Certified	Standard fittings: NSF/ANSI/CAN 61 and NSF/ANSI 372
Listings	UL listed and FM approved, 3 to 16 in.
Hydrostatic test	Every fitting, per SIGMA's Quality Management Standard
Traceability	Every fitting is heat coded
Domestic fittings	Ask your regional team for materials, lining, certifications and test records
Laying length	Short body per ANSI/AWWA C153/A21.53

Installation

Install per	ANSI/AWWA C600 and C111
Pipe	Ductile iron per AWWA C150/C151; PVC per AWWA C900/C905 and C909
Sewer with a mandrel test	Check the fitting with the job's mandrel before you install it

Weights are from the C153 MJ catalog, less accessories. Crate quantities are from the Import Fittings price list. Dimensions and laying lengths for standard fittings are in the C153 MJ catalog; ask your regional team about non-standard items. MJ deflection is per the September 2026 C153 MJ submittal. FBE, Protecto 401 and Tnemec submittals and the Z-COAT product sheet are under Documents. PROTECTO 401 is a registered trademark of Induron, Inc.

Every size and item number17 sizes of the MJ x MJ 90° bend · Import, Standard · item numbers

Showing the MJ x MJ 90° bend, Import, Standard. Item numbers follow the options above. Pick a size to load it.

C153 MJ MJ x MJ 90° bend: item numbers and catalog data by size
Item #	Pressure	Weight
DMB290	350 psi	17 lb
DMB390	350 psi	19 lb
DMB490	350 psi	25 lb
DMB690	350 psi	39 lb
DMB890	350 psi	57 lb
DMB1090	350 psi	89 lb
DMB1290	350 psi	108 lb
DMB1490	350 psi	210 lb
DMB1690	350 psi	264 lb
DMB1890	350 psi	335 lb
DMB2090	350 psi	400 lb
DMB2490	350 psi	565 lb
DMB3090	250 psi	930 lb
DMB3690	250 psi	1450 lb
DMB4290	250 psi	2205 lb
DMB4890	250 psi	2990 lb
Not made	150 psi	3600 lb

Weights are from the C153 MJ catalog, less accessories.

Questions and answers5 questions buyers ask about C153 MJ fittings

Where do I find the price?

On SIGMA's price lists. Where an item is on a posted list, the View price list button near the top of this page opens it, and every posted list is on the Price Lists page. SIGMA sells through waterworks distributors, and your distributor sets your price. For contract pricing, ask your regional team.

What is the difference between C153 and C110 fittings?

Both are AWWA ductile iron fittings with mechanical joint ends. C153 fittings are compact: the straight section of the body is left out, so they are shorter and lighter. C110 fittings are full body, so they are longer and heavier. If your spec calls for full body fittings, see C110 MJ fittings.

What do the letters around the item number mean?

The base number is the fitting and size: DMB1290 is a 12 in. 90° bend. An E in front means FBE (EDMB1290), 4- in front means Protecto 401 (4-DMB1290), a Z at the end means zinc (DMB1290Z) and a B at the end means bare (DMB1290B). A D- in front is the domestic version (D-DMB1290, D-EDMB1290, D4-DMB1290).

Is there a domestic version?

Yes, from 3 through 48 in. in most fitting types. Pick Domestic above and the item number and price list switch to it. Fittings and sizes that are not on the domestic price list are grayed out.

Which coating should I pick?

The one your spec names. Standard import fittings are double cement lined with an asphaltic seal coat inside and out. FBE, Protecto 401 and zinc are the upgrades on the price lists, and each has its own submittal under Documents. Not sure what your job needs? Call your regional team.