---
product_id: 601448528
title: "HFS-25 1\"/dn25 Flow Switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V"
brand: "ywbl-wh"
price: "€ 235.54"
currency: EUR
in_stock: true
url: https://www.desertcart.it/products/601448528-hfs-25-1-dn25-flow-switch-liquid-water-flow-paddle
store_origin: IT
region: Italy
---

# 1" DN25 Flow Size Stainless Steel Contacts 15A Current Rating HFS-25 1"/dn25 Flow Switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V

**Brand:** ywbl-wh
**Price:** € 235.54
**Availability:** ✅ In Stock

## Summary

> 💧 Stay ahead with precision flow control that keeps your systems safe and efficient!

## Quick Answers

- **What is this?** HFS-25 1"/dn25 Flow Switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V by ywbl-wh
- **How much does it cost?** € 235.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/601448528-hfs-25-1-dn25-flow-switch-liquid-water-flow-paddle)

## Best For

- ywbl-wh enthusiasts

## Why This Product

- Trusted ywbl-wh brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **IP65 Rated Protection:** Dust-tight and water-resistant design for dependable outdoor and indoor use.
- • **Versatile Application:** Ideal for water treatment, HVAC, fire protection, and cooling systems—engineered for critical infrastructure.
- • **Precision Flow Control:** Reliable ON-OFF operation ensures accurate fluid monitoring and system protection.
- • **High Voltage Compatibility:** Supports up to 380V operation, perfect for demanding industrial setups.
- • **Durable Stainless Steel Build:** Corrosion-resistant materials guarantee long-lasting performance in harsh environments.

## Overview

The HFS-25 1" DN25 Flow Switch features a robust stainless steel paddle and SPDT contacts rated for 15 amps and 380 volts. Designed for precise ON-OFF fluid flow detection, it excels in water treatment, HVAC, and fire protection systems. With IP65 protection and corrosion resistance, it delivers reliable, long-term performance in demanding environments.

## Description

Specification: Condition:100% brand new  Material:Stainless steel&Plastic Weight:518g/18.3oz Voltage:6-380V Interface size:1" Control mode:Paddle Maximum working pressure:1.0mpa Ambient temperature:0C~60C Liquid temperature:-10c-100c(non-freezing) Micro switch:single pole double throw(SPDT) Contact life:100,000 times Electrical parameters of micro-switch:220VAC,15A Installation method: 1.Open the flow switch 2.The switch has been set at minimum flow rate.Turn the adjusting screw counterclockwise to increase the flow setting value. 3.Press the target to check whether the micro switch can work normally. Excessive clockwise rotation of the adjusting screw may lead to the failure of the flow switch. 4.After the installation, please press the lever of the flow switch several times to check. If there is no "click" sound, turn the adjusting screw counterclockwise until there is "click" sound. 5.The adjustment screw of lacquer seal is only used for the first time to adjust the state of flow switch.  6.Observe three operating cycles to ensure that the switch and the system to which it is connected are operating properly and cover the switch enclosure promptly. Package List: 1×Water Flow Switch 5×Paddle Note: 1.It is absolutely forbidden to impact the wrench on the switch base plate. 2.When wiring or debugging, cut off the power supply. 3.When wiring, it is absolutely forbidden to adjust any screws other than micro switch terminals and grounding screws. And connecting the wire carefully. 4.Special grounding screws must be used for wiring, and installation screws cannot be removed. 5.The blade of the flow switch cannot contact with the inner wall of the pipe and other throttles in the pipe, otherwise the switch cannot be reset normally.

## Features

- This flow switch is made of high quality stainless steel, corrosion resistant and long service life.
- This product is used to measure the fluid dynamics of fluids passing through pipes, such as water, ethylene diluents, glycols and other liquids that do not corrode copper.
- This water flow switch is suitable for water treatment systems, central air conditioning, water cooling units, fire protection systems and other fields.
- Flow switches are typically used in locations that require interlocking or "cut" protection.
- When the flow exceeds the set value, the fluid drives the blade and the microswitch, and the SPDT contact can connect the circuit and disconnect other circuits.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Operation Mode | ON-OFF |
| Current Rating | 15 Amps |
| Operating Voltage | 380 Volts |
| Contact Type | Normally Open |
| Connector Type | Screw |
| Brand | YWBL-WH |
| Terminal | Spdt |
| Item dimensions L x W x H | 8.5 x 6.5 x 12.5 Centimeters |
| Circuit Type | 1-way |
| Actuator Type | Hinge Lever |
| Contact Material | Stainless Steel |
| International Protection Rating | IP65 |
| Number of Positions | 1 |
| Controller Type | Push Button |
| Control Method | Touch |
| Connectivity Protocol | Wi-Fi |
| Colour | Default |
| Wattage | 3.3E+3 |
| Net Quantity | 1.0 Count |
| Manufacturer | YWBL-WH |
| Model number | YWBL-WHy7wxqc2410 |
| Item Weight | 520 g |
| Product Dimensions | 8.5 x 6.5 x 12.5 cm; 520 g |
| Item model number | YWBL-WHy7wxqc2410 |
| Item Height | 12.5 Centimeters |
| Item Width | 6.5 Centimeters |
| Are batteries included? | No |

## Product Details

- **Operation Mode:** ON-OFF
- **Current Rating:** 15 Amps
- **Operating Voltage:** 380 Volts
- **Contact Type:** Normally Open
- **Connector Type:** Screw

## Images

![HFS-25 1"/dn25 Flow Switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V - Image 1](https://m.media-amazon.com/images/I/51b5d7gF69L.jpg)
![HFS-25 1"/dn25 Flow Switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V - Image 2](https://m.media-amazon.com/images/I/511iwFo6OwL.jpg)
![HFS-25 1"/dn25 Flow Switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V - Image 3](https://m.media-amazon.com/images/I/61hX8rHE6WL.jpg)
![HFS-25 1"/dn25 Flow Switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V - Image 4](https://m.media-amazon.com/images/I/51x5VYZpnSL.jpg)
![HFS-25 1"/dn25 Flow Switch,Liquid Water Flow Paddle Control Switch SPDT Contacts 6-380V - Image 5](https://m.media-amazon.com/images/I/51GUz-xBVbL.jpg)

## Questions & Answers

**Q: Is this good for potable water system?**
A: Parts are made of stainless steel so I don't see any reason why it could not be used for potable water.

**Q: what thread size and is it NPT or G or R?**
A: Npt

**Q: Does it work if i want to make a circuit with 5V?**
A: Yes

**Q: What are the on/off flowrate adjustment possibilities of this switch and the pressure drop through the unit at (say) 8 gpm?**
A: Adjustment is almost infinite.  Different   sized paddles and adjustable microswitch.  Very little if any flow loss.  Paddles are thin and very flexible.

## Frequently Bought Together

- HFS-25 1"/DN25 SPDT Contacts Water Switch, Liquid Water Paddle Control Switch 6-380V
- GEYA Delay Off Single Function Time Relay 2 Outputs 16A Electronic Power Off Timer Delay Relay(GRT8-B2,AC/DC12V-240V)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.it/products/601448528-hfs-25-1-dn25-flow-switch-liquid-water-flow-paddle](https://www.desertcart.it/products/601448528-hfs-25-1-dn25-flow-switch-liquid-water-flow-paddle)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-24*