Category 300 Class American standard Malleable iron pipe fittings
- Takaddun shaida: UL List / FM Amincewa
- Surface: Black baƙin ƙarfe / Hot tsoma galvanized
- Matsayi: ASME B16.3
- Abu: Malleable baƙin ƙarfe ASTM A197
- Saukewa: NPT/BS21
- W. pressure: 300 P.S.I. 10 kg/cm at 550° F
- Surface: Black baƙin ƙarfe / Hot tsoma galvanized
- Ƙarfin Ƙarfin Ƙarfi: 28.4 kg/mm (Mafi ƙarancin)
- Tsawaitawa: 5% Mafi ƙarancin
- Zinc Coating: Average 86 um, each fitting≥77.6 um
Girman samuwa:

Abu |
Girman (inch) |
Girma |
Halin Qty |
Shari'a ta Musamman |
Nauyi |
|||||
Lamba |
A | B | C | D |
Jagora |
Ciki |
Jagora |
Ciki |
(gram) |
|
H-UNI02 | 1/4 | 19.5 | 17.5 | 22.0 |
200 |
50 |
100 |
50 |
130.5 |
|
H-UNI03 | 3/8 | 22.5 | 19.0 | 24.2 |
120 |
60 |
90 |
45 |
233 |
|
H-UNI05 | 1/2 | 24.5 | 20.0 | 27.0 |
80 |
40 |
40 |
20 |
261.4 |
|
H-UNI07 | 3/4 | 27.5 | 21.0 | 29.0 |
60 |
30 |
30 |
15 |
400 |
|
H-UNI10 | 1 | 29.0 | 23.0 | 32.5 |
36 |
18 |
18 |
9 |
665.8 |
|
H-UNI12 | 1-1/4 | 33.0 | 26.0 | 38.0 |
24 |
12 |
12 |
6 |
945.8 |
|
H-UNI15 | 1-1/2 | 35.5 | 29.0 | 41.5 |
20 |
10 |
10 |
5 |
1121.3 |
|
H-UNI20 | 2 | 42.0 | 32.0 | 45.0 |
12 |
6 |
6 |
3 |
1914 |
|
H-UNI25 | 2-1/2 | 44.0 | 37.0 | 51.0 |
8 |
4 |
4 |
2 |
2347 |
|
H-UNI30 | 3 | 55.5 | 43.0 | 58.0 |
6 |
2 |
3 |
1 |
3582.5 |
|
H-UNI40 | 4 | 61.5 | 54.0 | 64.5 |
2 |
1 |
1 |
1 |
8450 |
1.Building water supply pipeline system
2.Building heating and water supply system
3.Building fire pipeline system
4.Building gas pipeline system
5.Oil pipeline piping system
6.Other non corrosive liquid I gas pipelines


The 300 Class American Standard Malleable Iron Pipe Fittings Union With Brass Seat is a detachable fitting with both female threaded connections, featuring a ball-to-cone or ball-to-ball joint. It consists of a male tail, a female head, a union nut, and a brass seat, delivering strong performance and various functions.
Firstly, this malleable iron union is suitable for pipeline connections in many industries, including industrial, chemical, petroleum, natural gas, aerospace, shipbuilding, construction, and water treatment. Whether under high pressure or low pressure, this union can provide a reliable connection, ensuring the smooth flow of fluids in pipelines.
Secondly, this product is characterized by its corrosion resistance and durability. Made of malleable iron and treated with heat and galvanizing, it can prevent corrosion and rust in different environments. Moreover, the brass seat enhances the sealing performance of the union, ensuring good performance even under high temperature, high pressure, and vibration.
In addition, this product is easy to install and disassemble, thanks to the ball-to-cone or ball-to-ball joint connection. The union nut is made of high-quality steel, sturdy and reliable, and can be adjusted according to the needs of different pipelines.
Finally, this product meets American and international standards, ensuring high interchangeability and compatibility. Customers can purchase and use it with confidence, and also enjoy excellent after-sales service.
In summary, the 300 Class American Standard Malleable Iron Pipe Fittings Union With Brass Seat is a strong and versatile pipeline connection fitting, suitable for various industries and applications.
Keep every pipe fitting that our Clients’ received is qualified.
Q: Shin ku masana'anta ne ko kamfani na kasuwanci?
A: Mu ne masana'anta tare da + 30 shekaru tarihi a simintin filin.
Tambaya: Wane sharuɗɗan biyan kuɗi kuke tallafawa?
A: TTor L/C. 30% payment in advance, and the 70%balance would be paid before shipment.
Tambaya: Yaya tsawon lokacin isar ku?
A: Kwanaki 35 bayan samun ci gaba na biyan kuɗi.
Q: lt zai yiwu a sami samfurori daga masana'anta?
A: iya. Za a ba da samfurori kyauta.
Tambaya: Shekaru nawa samfuran garanti?
A: Mafi ƙarancin shekara 1.
LABARAI