Because the section of malleable cast iron is black, it is called black heart pipe fittings. The section is white and is white-hearted malleable cast iron. The material of black malleable iron pipe fittings is malleable steel.
Because of the advantages of corrosion resistance, low price and convenient threaded connection, it is widely used in pipeline connection, changing the direction and size of fluid, etc. The main application scenarios are fire protection systems, water systems, gas and oil pipeline systems, agricultural irrigation systems, seawater desalination treatment systems, refrigeration and HVAC systems, etc.
What is the production process of black malleable iron pipe fittings? The production process of pipe fittings includes: smelting of raw materials, pouring molten iron into molds, annealing, polishing, galvanizing, aligning and scraping, threading, air tightness testing, packaging.
Classification of black malleable iron pipe fittings? Common black malleable iron pipe fittings are: 90°elbow, tee, socket/coupling, nipples, bushings, union, reducing elbow, reducing tee, reducing socket/coupling, conical seat union, brass seat union , union elbow and so on.
Size of black fittings: 1/8” -6”. According to different thread standards, black malleable iron pipe fittings include American ASTM standard thread pipe fittings, British EN10242 standard thread pipe fittings, international ISO standard thread pipe fittings, German DIN standard pipe fittings, etc. In order to meet different market demands, pipe fittings include heavy duty fittings, medium duty fittings and light duty fittings. The certificates of pipe fittings generally include FM fire fighting certificate, UL drinking water certificate, and different certificates in various countries, such as Brazil ABNT certificate, Turkey TSE certificate, British kite certificate, etc.
There are three surface treatment methods for black malleable iron pipe fittings: hot-dip galvanizing, electro-galvanizing, and sandblasting. Pipe fittings include hot-dip galvanized pipe fittings, electro-galvanized pipe fittings, and black product pipe fittings. Hot-dip galvanized pipe fittings are generally used in humid places with high requirements for corrosion resistance. black malleable iron pipe fittings are generally used in oil and gas systems and dry environments.
The following are the main categories of black pipe fittings made of malleable iron, and the corresponding product names.
|Elbows||90||Black Elbow 90 degree, equal|
|Elbows||90R||Black Elbow 90 degree, reducing|
|Elbows||90U||Black Return Bend|
|Elbows||92||Black Elbow 90 degree, Male and Female, equal|
|Elbows||92R||Black Elbow 90 degree, Male and Female, reducing|
|Elbows||95||Black Union Elbow, flat seat|
|Elbows||96||Black Union Elbow, conical seat|
|Elbows||97||Black Union Elbow, flat seat, Male and Female|
|Elbows||98||Black Union Elbow, conical seat, Male and Female|
|Elbows||120||Black Elbow 45 Degree, equal|
|Elbows||471||Black Bracket Elbow|
|Elbows||1221||Black Side Outlet Elbow|
|Bends||1||Black Bend 90 degree, Male and Female|
|Bends||2||Black Bend 90 degree, female|
|Bends||40||Black Bend 45 degree, Male and Female|
|Bends||41||Black Bend 45 degree, female|
|Tee||130||Black Tee, equal, female|
|Tee||130R||Black Tee, reducing|
|Tee||131R||Black Tee, reducing|
|Tee||165||Black Lateral Y Branch, 45 degree|
|Cross||180||Black Cross, equal, female|
|Cross||180R||Black Cross, reducing, female|
|Cross||1223||Black Side Outlet Tee|
|Union||330||Black Union, flat seat|
|Union||331||Black Union, flat seat, Male and Female|
|Union||340||Black Union, conical seat|
|Union||341||Black Union, conical seat, Male and Female|
|Union||342||Black Union, conical brass seat|
|Union||343||Black Union, conical brass seat, Male and Female|
|Union||372||Black Union Tail Piece (part of 330)|
|Union||374||Black Union Nut (part of 330)|
|Sockets||220||Black Socket, part threaded, female|
|Sockets||240||Black Socket, reducing|
|Sockets||246||Black Socket, Male and Female, reducing|
|Sockets||270||Black Socket, entire threaded|
|Sockets||529A||Black Socket, Male and Female|
|Bushing||241||Black Bushing, Male and Female|
|Nipple||245||Black Nipple, reducing|
|Nipple||280||Black Nipple, equal|
|Plug||290||Black Plug, beaded|
|Plug||291||Black Plug, plain|
|Round Flange||321||Black Round Flange, Without Bolt Hole|
|Round Flange||329||Black Round Flange, With 4 Bolt Holes|
|Caps||300||Black Cap, hexagon|
|Caps||301||Black Cap, round|
|Compression Coupling||LCC||Black Long Compression Coupling|
|Compression Coupling||SCC||Black Short Compression Coupling|
Jianzhi Group is one of the leader manufacturers of china black malleable iron pipe fittings, founded in 1982, after almost 40 years development, Jianzhi black malleable iron pipe fittings could be reach higher quality levels, except passed FM UL CE ABNT approvals, the factory also passed ISO certifications. 400, 000 tons annual production capacity, Jianzhi can provide more faster delivery to customers, less than 35 days. If you have any inquiry, welcome to contact us.