Screwed Brass Cap

Screwed Brass Cap | No. 33 BSP/NPT Threaded End Cap for Sealing Pipe Systems

The Screwed Brass Cap (Standard Brass No. 33) is a durable end-fitting used to seal off female threaded ports in fluid and gas systems. Constructed from high-quality brass, this cap is designed to provide a secure, corrosion-resistant seal in oil, fuel, water, natural gas, and lubrication lines.

Suitable for both BSP and NPT threads, the cap is pressure-rated to 3500 kPa (500 PSI) and handles temperatures from 0°C to 120°C. It’s ideal for applications requiring reliable end-point closures in high-pressure systems.

Key Applications

• Sealing unused pipe ends in fuel, oil, and gas systems

• End-of-line closure in plumbing installations

• Pressure containment in fluid and lubrication systems

• Temporary or permanent line termination

Product Features

• Made from corrosion-resistant brass for long-term durability

• Available in BSP and NPT female thread types

• Provides reliable sealing in high-pressure environments

• Hexagonal design allows easy installation with standard spanners

• Suitable for oil, fuel, water, gas, and lubrication systems

Technical Specifications

• Material: Brass

• Model: Brass No. 33 – BSP Cap

• Thread Type: Female (BSP/NPT)

• Available Sizes: 1/8", 1/4", 3/8", 1/2", 3/4", 1"

• TPI (BSP): 28, 19, 14, 11

• TPI (NPT): 27, 18, 14, 11.5

• Pressure Rating: Up to 3500 kPa (500 PSI)

• Temperature Rating: 0°C to 120°C

Why Choose This Product?

The Screwed Brass Cap offers a simple yet effective solution for sealing pipe systems. It’s a dependable choice for professionals working across industrial, plumbing, and automotive applications where safety and reliability are essential.

Size Table