316 304 Casting Hex Nipple Class 150 Threaded BSP for Pipeline
Product Specifications
| Attribute | Specification |
|---|
| Product Name | Threaded Hex Nipple |
| Material | Stainless Steel 316 304 |
| Standard | ASTM A351 (Material) |
| Fitting Type | Hexagonal Nipple, Half Nipple |
| Connection | Male x Male Threaded BSP |
| Pressure Rating | Class 150 |
| Application | General Industrial Pipelines, Plumbing |
| Outer Diameter | DN8 - DN100 |
Types of Nipples
A nipple is a short pipe with external threads at both ends, used
to connect two internally threaded fittings, valves, or equipment.
The hexagonal tube section (Hex Nipple) features a hexagonal
cross-section in the middle, providing a convenient clamping point
for wrenches during installation. This design allows for easier
torque application and more reliable sealed connections.
BSP Threaded Connection
This fitting uses BSP (British Standard Pipe Thread), a widely
adopted standard in Europe and Commonwealth countries. The 55°
tooth profile angle design works with both taper threads (BSPT) and
parallel threads (BSPP). Threaded connections eliminate the need
for on-site welding, offering convenient installation and
disassembly - an ideal solution for low-pressure piping systems.

Material Selection: 304 vs. 316 Stainless Steel
The choice between 304 and 316 stainless steel depends on
environmental corrosiveness. While 304 is cost-effective for
conventional environments (water, air), 316 offers superior
resistance to chloride corrosion and pitting - making it ideal for
seawater, salt spray, or chemical applications. The molybdenum
content in 316 provides enhanced durability and reliability in
corrosive conditions.
Applications
The Class 150 hexagonal pipe joint serves as a fundamental
component for low-pressure threaded pipeline connections. Its 1/2
inch diameter makes it ideal for connecting instruments, valves,
filters, and small equipment. The 316 material extends its use
beyond conventional water systems to industrial pipelines, marine
applications, and chemical processing - offering versatile,
easy-to-install connectivity solutions.