Malleable Iron 90 90° Elbow NPT Thread

Size: 1/8”-6”
Material: ASTM A197/A197M
Dimension: ASME B16.3, B16.14
Union Dimension:B16.39
Thread: ASME B1.20.1
Pressure Rating: 363PSI,CLASS150
Surface Treatment: Hot-Dip Galvanized,Electroplated
Zinc Coating: ASTM A 153
Certificate: UL Listed / FM Approved / NSF 61
Application: Fire Protection,Waterworks,HVAC,Plumbing,GAS,Irrigation,or other piping systems

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Product Description

Products Details

American Standard Malleable Iron pipe fittings 90 90° Elbow.This elbow material Standard is ASTM A197/A197M.Threaded Standard is ASME B1.20.1,NPT thread.According to weight ,Elbow have heavy type Elbow with UL/FM certificate ,medium weight banded weight and light beaded type Elbow. According to the surface treatment ,hot-dip Galvanized elbow ,electro galvanized elbow ,black elbow. According to the thread , BSP thread elbow ,NPT thread elbow ,ISO 7/1 thread elbow. Elbow is most common fittings in the piping system. 90 degree Elbow ,45degree Elbow , m&f Elbow ,street Elbow ,union elbow , m&f union elbow and so on.

Product Drawing

Size A(mm) PCS/CTN. Size A(mm) PCS/CTN.
1/4” 20 600 1 1/2” 48.5 48
3/8” 24 600 2” 57 32
1/2” 27 500 2 1/2” 68.5 16
3/4” 32 400 3” 77.5 10
1” 37 210 4” 96.5 6
1 1/4” 44.5 120 6” 129 2


What is an elbow?

In piping systems, elbows are fittings that change the direction of a pipe. According to the angle, there are three most commonly used 45 degrees, 90 degrees and 180 degrees, and other abnormal angle elbows such as 60 degrees are included according to the needs of the project. Elbow materials include cast iron, stainless steel, alloy steel, malleable cast iron, carbon steel, non-ferrous metals and plastics.

The ways to connect with the pipe are: direct welding (the most common method) flange connection, hot melt connection, electrofusion connection, threaded connection and socket connection. According to the production process, it can be divided into: welding elbow, stamping elbow, push elbow, casting elbow, butt welding elbow, etc. Other names: 90 degree elbow, right angle bend, etc.

Malleable cast iron pipe fittings are pipe fittings made through molding, melting, pouring, annealing, scraping, polishing, galvanizing, , pressing, anti-rust oil treatment and other processes.

Application and Case

Products are used in fire protection system, water system, HVAC system, plumbing, gas system, irrigation system, etc.These products are used in many projects , such as Beijing Airport, Shanghai World Trade Center, Canton Tower and other famous landmark projects.