BSP Black Malleable Iron Hex Nipple Equal – Fig. 280, PN25, UL/FM Approved

Overview

The Fig. 280 BSP black hex nipple is a malleable iron threaded pipe fitting designed to connect two female-threaded pipes or fittings of the same nominal size. Featuring male threads on both ends and a hexagonal section in the middle, it allows easy installation and removal using standard wrenches.
This fitting is widely used in water, oil, gas, and petrochemical piping systems, where reliable, high-strength threaded connections are required.

Product Description

Manufactured from high-quality malleable iron, the Fig. 280 hex nipple offers excellent mechanical strength, toughness, and pressure resistance. It is produced in accordance with major international standards such as EN 10242, ASME B16.3, DIN 2950, and ISO 49, ensuring consistent quality and global interchangeability.

The BSP threads comply with EN 10226, ISO 7-1, ISO 228, and ASME B1.20.1, providing secure, leak-tight connections.
With a maximum working pressure of PN25 (25 Bar / 2.5 MPa / 363 PSI, Class 150) and a maximum operating temperature of 200°C (392°F), Fig. 280 hex nipples are suitable for demanding industrial applications.

Features

• Hexagonal middle section: Allows easy tightening and loosening with a wrench

• Male × male threaded design: Ideal for connecting two female-threaded fittings

• High-strength malleable iron material: Tensile strength ≥ 350 MPa with excellent toughness

• Wide pressure and temperature range: Rated for PN25 and up to 200°C

• Standardized BSP threads: Ensures reliable sealing and full compatibility

• Multiple certifications: UL Listed, FM Approved, CE, ABNT, TSE, SNI, ISI

Application

The Fig. 280 hex nipple is primarily used to join two internally threaded components, such as female-threaded elbows, tees, valves, or couplings.
The hex design improves installation efficiency and practicality compared with round nipples, making it one of the most commonly used nipple fittings in threaded piping systems.

Typical applications include:

• Water supply and plumbing systems

• Fire protection and sprinkler pipelines

• Oil and gas distribution

• Petrochemical and industrial piping

• HVAC and utility installations

Application Areas

fire	oil pipeline	gas pipeline	water  treatment	water Pipeline Systems	HVAC

Faq

Q1: What is a Fig. 280 hex nipple used for?

A Fig. 280 hex nipple is used to connect two female-threaded pipes or fittings of the same size. It is commonly installed between internally threaded elbows, tees, valves, or couplings to extend or join piping systems.

Q2: What material is the Fig. 280 hex nipple made of?

The fitting is manufactured from high-quality malleable iron, offering excellent strength, toughness, and resistance to pressure and impact, making it suitable for industrial and fire protection applications.

Q3: What thread standards are available for this hex nipple?

The Fig. 280 hex nipple is produced with BSP threads in accordance with EN 10226, ISO 7-1, ISO 228, DIN 2999, and ASME B1.20.1, ensuring compatibility with global piping systems.

Q4: What is the maximum working pressure and temperature?

• Maximum pressure: PN25 / 25 Bar / 2.5 MPa / 363 PSI (Class 150)

• Maximum temperature: 200°C (392°F)

Q5: Why does the hex nipple have a hexagonal middle section?

The hexagonal center allows easy tightening and loosening with a wrench, providing better installation convenience and higher efficiency compared with round nipples.

Q6: What sizes are available for Fig. 280 hex nipples?

Standard sizes range from 1/4" to 4" (DN8–DN100). Other sizes or special requirements may be available upon request.

Q7: What surface finish does the product have?

The standard finish is black. Galvanized or other surface treatments can be offered based on project requirements.

Q8: Is this product certified for fire protection systems?

Yes. The Fig. 280 hex nipple is UL Listed and FM Approved, and also complies with CE, ABNT, TSE, SNI, and ISI standards, making it suitable for regulated and international projects.