LTWFITTING Compression Inserts Kit 1/4 3/8 1/2 5/8 OD Brass Fittings

Description

Product Overview

LTWFITTING’s 200‑piece compression insert kit is engineered for professionals who demand reliable, leak‑free connections across a range of fluid handling applications. Each insert is forged from high‑grade brass, a material chosen for its excellent corrosion resistance, machinability, and ability to maintain a tight seal under pressure. The kit includes four standard tube diameters—1/4, 3/8, 1/2 and 5/8 inch OD—covering the most common sizes used in industrial hydraulics, pneumatic systems, and residential plumbing.

The inserts feature NPT (National Pipe Thread) male threads, a universally accepted standard that ensures compatibility with a wide variety of fittings, valves, and adapters. The brass construction not only provides a durable, long‑lasting component but also offers a natural antimicrobial property, making it suitable for water‑based and food‑grade applications where cleanliness is paramount.

Every piece in the kit is precision‑machined to tight tolerances, guaranteeing a uniform compression ratio when installed with a compatible compression nut. This uniformity reduces the risk of over‑tightening, which can damage tubing, and under‑tightening, which can cause leaks. The kit’s packaging—compact, stackable, and clearly labeled—makes inventory management simple for workshops, service technicians, and DIY enthusiasts alike.

Beyond the core specifications, the kit carries ISO 9001 certification, reflecting LTWFITTING’s commitment to quality management and continuous improvement. The manufacturer, Ningbo Haishu Huaxin Yicheng Trade Co., Ltd., has a long history of supplying high‑performance fluid control components, and the product’s ASIN (B09FPKZF2B) and UPC (619988261374) provide traceability for easy reordering.

Usage

This kit is ideal for a broad spectrum of environments. In hydraulic circuits, the brass inserts provide a secure seal for high‑pressure lines, ensuring that power transmission remains efficient and safe. In pneumatic systems, the same inserts handle compressed air without deformation, making them perfect for automation equipment, CNC machines, and air‑powered tools.

Plumbers will appreciate the kit’s versatility for residential and commercial water lines, where brass offers resistance to mineral buildup and rust. The inserts also perform well in chemical processing plants where compatible fluids require non‑reactive materials. Because the kit includes multiple tube sizes, a single purchase can satisfy the needs of multi‑size projects, reducing the need for multiple inventory items.

Installation is straightforward: slide the brass insert onto the prepared tube end, position the compression nut, and tighten to the manufacturer‑specified torque. The result is a robust, leak‑free joint that can withstand temperature fluctuations and vibration. The kit’s design also facilitates easy disassembly for maintenance or system reconfiguration, a valuable feature in environments where downtime must be minimized.

Why Choose Us

Choosing LTWFITTING means selecting a brand with a reputation for precision engineering and dependable service. Each insert undergoes rigorous testing for pressure rating, thread integrity, and corrosion resistance before it reaches the customer. The ISO 9001 certification underscores a systematic approach to quality that translates into consistent performance on the job site.

Our after‑sales support includes technical assistance from experienced engineers who can guide you through installation challenges, recommend the appropriate torque values, and help troubleshoot any sealing issues. We also offer a responsive warranty program that protects your investment, ensuring that any manufacturing defects are addressed promptly.

Key Features

• High‑grade brass construction delivers superior corrosion resistance and long‑term durability.
• Standard NPT male threads guarantee compatibility with a wide range of fittings and valves.
• Four tube diameters (1/4, 3/8, 1/2, 5/8 inch OD) cover most industrial and residential applications.
• Precision‑machined to tight tolerances for consistent compression and leak‑free performance.
• Comprehensive after‑sales support and warranty provide peace of mind for every purchase.

FAQ

What pressure rating do these brass compression inserts support?

The inserts are rated for typical hydraulic and pneumatic pressures up to 3000 psi when installed correctly with the recommended compression nut torque. For specific high‑pressure applications, consult the product data sheet or contact our technical team for guidance.

Can these inserts be used with plastic tubing?

Yes, the inserts are compatible with both metal and reinforced plastic tubing, provided the tube wall thickness meets the minimum requirement for compression fitting. Always verify the tubing specifications to ensure a secure fit.

Are the NPT threads compatible with metric fittings?

The inserts feature standard NPT threads, which are not directly interchangeable with metric threads. However, adapters are readily available to bridge NPT and metric connections when needed.

How do I know the correct torque for installation?

LTWFITTING recommends tightening the compression nut to 30–35 Nm (Newton‑meters) for brass inserts. Using a calibrated torque wrench helps achieve the optimal seal without over‑compressing the tubing.

What warranty does LTWFITTING provide?

All compression inserts come with a one‑year limited warranty covering manufacturing defects. If a defect is identified, we will replace the affected components at no additional cost.

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