Informations of NPT standard conical joint union
| Material | Malleable iron |
| Standard | Thread: ISO 7/1 |
| Dimension | ISO 49, DIN 2950,EN10242 |
| Chemical property | (C %2.4-2.9), (Si %1.4-1.9), (Mn %0.4-0.65), (P% <0.1), (S% <0.2%) |
| Physical property | Tensile strength>=350Mpa,Elongation>=10% Hardness<=150HB |
| Testing pressure | 2.5Mpa |
| Working pressure | 1.6Mpa |
| Type | Beaded with ribs or banded with ribs |
| Beaded without ribs or banded without ribs |
| Round/square |
| Surface | Galvanized/ no galvanized |
| Color | White/black |
| Model | Elbow, Tees, Crosses, Bends, Unions, Bushings, Lateral Braches, Sockets, Nipples, Hexagon/Round, Caps, Plugs, Locknuts, Flanges ,Side Outlet Tees, Side Outlet Elbows and etc |
| Connection | Male, Female |
| Shape | Equal, Reducing |
| Certificate | BSI,ANAB,ISO9001,FM,UL |
| Application | Suitable for pipe connect of steam, air, gas, oil and so on |
| Buyer’s drawings or designs are available |
| Package | Cartons without pallet |
| Cartons with pallet |
| Double woven bags |
| Or as buyer’s requirements |
| Delivery details | According to the quantities and specifications of each order |
| Normal delivery time is from 30 to 45 days after receiving the deposit |
1/8" size npt standard conical joint union bsp standard joint union
We imported full automatic produce-lines from DISA Denmark, DJ and SINTOKOGIO Japan on npt standard conical joint union making and quality ensuring.
What is the NPT (National Pipe Thread)?
National Pipe Thread Taper is the most popular type of thread used in the United States and Canada for tapered threads used on threaded pipes and fittings. Unlike straight threads that you find on a bolt, a taper thread pulls tight and therefore makes a fluid-tight seal.
Malleable cast iron like ductile iron possesses considerable ductility and toughness because of its combination of nodular graphite and low carbon metallic matrix. However the nodules are not truly spherical as they are in ductile iron but are irregularly shaped aggregates.
Malleable cast iron and ductile iron are used for some of the applications in which ductility and toughness are important. In many cases, the choice between malleable and ductile iron is based on economy or availability rather than on properties. In certain applications, however, malleable cast iron has a distinct advantage. It is preferred for thin section castings as given below.
Size of npt standard conical joint union
| Size | Inch | 1/8 | 1/4 | 3/8 | 1/2 | 3/4 | 1 | 11/4 |
| mm | 6 | 8 | 10 | 15 | 20 | 25 | 32 |
Dim.
(mm) | A | 32.0 | 36.5 | 41.0 | 43.5 | 49.5 | 52.5 | 57.5 |
| Size | Inch | 11/2 | 2 | 21/2 | 3 | 4 | 6 | |
| mm | 40 | 50 | 65 | 80 | 100 | 150 | |
Dim.
(mm) | A | 61 | 70 | 82 | 89 | 98 | 145 | |
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