Flow Switch, Hfs-25 1″/Dn25 Flow Switch, HFS25 1″/dn25 Liquid Water Flow Paddle Control Switch SPDT Contacts 220V

Description

Product Overview

The Neufday HFS25 flow switch is engineered to provide precise water flow detection and control in a variety of industrial applications. Featuring a 1″/dn25 paddle that reliably senses liquid movement, the unit incorporates SPDT (single pole double throw) contacts rated for 220V operation, ensuring robust electrical performance even in demanding environments. Constructed from high‑grade materials, the switch offers excellent resistance to corrosion and wear, extending service life while maintaining accuracy. Its compact dimensions—6.3 x 3.54 x 2.76 inches—and lightweight build (1.14 pounds) make it easy to integrate into existing systems without requiring extensive modifications. The device is certified by Neufday, a reputable manufacturer known for delivering dependable hydraulic and pneumatic components.

Usage

Designed for versatility, the HFS25 flow switch excels in a range of settings, from factory floor machinery to water treatment facilities. It is ideal for monitoring coolant flow in machining centers, regulating water circulation in HVAC systems, and safeguarding pumps in chemical processing plants. The switch can be installed in both vertical and horizontal pipe runs, making it suitable for retrofit projects and new installations alike. Its SPDT contacts enable seamless integration with control panels, PLCs, and alarm systems, providing real‑time feedback to operators. Whether used in a high‑pressure hydraulic circuit or a low‑flow plumbing network, the HFS25 delivers consistent performance, helping prevent equipment damage caused by unexpected flow interruptions.

Why Choose Us

Choosing the Neufday HFS25 means selecting a product backed by rigorous quality assurance processes and a commitment to customer satisfaction. Each unit undergoes comprehensive testing for flow accuracy, electrical reliability, and environmental durability before leaving the factory. Neufday’s extensive experience in hydraulic components ensures that the switch meets industry standards for safety and performance. Additionally, the company offers responsive technical support and a clear warranty policy, giving users confidence that any issues will be addressed promptly. By investing in this flow switch, customers benefit from reduced downtime, lower maintenance costs, and enhanced system reliability.

Key Features

• Accurate 1″/dn25 paddle detects low‑flow conditions, preventing equipment damage.
• Durable SPDT contacts rated for 220V provide reliable electrical signaling.
• Compact, lightweight design simplifies installation in tight spaces.
• Corrosion‑resistant housing ensures long‑term operation in wet environments.
• Dedicated customer support and warranty for peace of mind.

FAQ

What pipe sizes are compatible with the HFS25 flow switch?

The switch is designed for 1″ (dn25) pipe diameters, but it can be adapted to slightly larger or smaller sizes using appropriate fittings.

Can the switch operate in high‑temperature water systems?

Yes, the Neufday HFS25 is rated for temperatures up to 80°C (176°F), making it suitable for most industrial water applications.

How do I wire the SPDT contacts to a PLC?

Connect the common terminal to the PLC input, and use the normally open and normally closed terminals to create the desired control logic. Detailed wiring diagrams are provided in the product manual.

What warranty does Neufday offer for this flow switch?

Neufday provides a one‑year limited warranty covering manufacturing defects, along with access to technical support for installation and troubleshooting.