Hypertherm 229235 Online Flow Switch Flow Sensor Flow Switch Subassembly

1. Overview of the Hypertherm 229235

The Hypertherm 229235 is an in-line flow switch and flow sensor. With a monitoring accuracy of 0.6 GPM (≈2.3 L/min), it acts as a "flow sentinel" in the plasma power supply's cooling circuit. A slight drop in water pressure or a slight slowdown in flow rate triggers an immediate alarm and shutdown, protecting the expensive torch and power supply from dry burns. The RTR quick-connect plastic hose connector is plug-and-play, and dual digital/analog outputs convert real-time flow into a 4–20 mA signal readable by the PLC. On-site commissioning can be completed in just ten minutes.

2. Core Features:

• Type: In-line flow switch/flow sensor
• Flow range: 0.6 GPM ≈ 2.3 L/min (23 L/min is the system's maximum flow capacity, with a trigger value of 2.3 L/min)
• Connection: RTR push-in tube connector
• Output signal: Digital switch + analog 4–20 mA (dual output)
• Power supply: 24 V DC (typical)
• Accuracy: ±5 % F.S.
• Media: Coolant, deionized water, or compatible fluids
• Operating temperature: -20 … +60°C
• Protection rating: IP65 (enclosure seal)
• Material: Engineering plastic housing, FKM seal
• Applicable system: HPR400XD® automatic gas plasma cutting system

Real-time flow monitoring: An alarm is immediately output when the cooling flow rate falls below 2.3 L/min, preventing torch overheating and damage.
Dual signal output: A digital switch output can be used for direct shutdown interlock, and a 4–20 mA output provides real-time flow curve reading to a PLC.
Maintenance-free design: No mechanical impeller, Hall effect sensing technology, pollution resistance, and long life.
Quick-connect installation: Simply insert the RTR connector to connect the piping, reducing equipment downtime for maintenance.

Typical Applications
• Cooling circuits for Hypertherm plasma cutting machines such as the HPR400XD, HPR130, and HPR260
• Flow protection upgrade for converting handheld Powermax systems to machine operation
• Flow alarms for high-purity water cooling plates and laser cutting cooling units in semiconductor plants

3. Product details pictures

4. Related products

We are a global trading company specializing in PLC automation and industrial controls.

Xiamen Changxuyuan Trading Co., Ltd. is a leading global online wholesale supplier, offering a wide selection of new and discontinued products. We are committed to providing a wide range of high-quality products to our global customers at highly competitive factory direct prices, fast delivery times, and first-class customer service.

Our goal is to provide high-quality products to our global customers at highly competitive factory direct prices.

The more you buy, the more you save! Our website is available in multiple major languages ​​to meet the needs of our growing international customer base. Looking for low-priced, high-quality products? Xiamen Changxuyuan Trading Co., Ltd. is your ideal choice, offering high-quality products, low prices, fast delivery, and professional service—all backed by our strong global presence.

Four Reasons to Choose Us
1. We have the world's largest selection of industrial spare parts, including a wide variety of new and discontinued products.
2. We update our product information daily.
3. We have a diverse buyer base from around the world, constantly searching for high-quality, low-priced products to meet the diverse needs of our large global customer base.

4. We offer a wide variety of styles at the lowest online prices.

Factory Prices
Leveraging our extensive and strong partnerships with domestic and international manufacturers, we are able to offer high-quality products at exceptionally low factory prices. We are committed to working with global wholesalers to secure the best prices. If you are interested in our products, please feel free to contact us. We are confident that you will enjoy all of our exquisite products at wholesale prices.

Fast Shipping/Professional Packaging
We have established long-term partnerships with UPS, FedEx, DHL, and other leading global carriers, enabling us to offer world-class shipping options. Our dedicated warehouse staff will meticulously process your order, ensuring packaging according to our strict and rigorous standards. Your product will be carefully inspected and securely packaged before shipment. We ship to thousands of customers in dozens of countries around the world every day, demonstrating our commitment as a leading global industrial spare parts company, ensuring the highest level of responsiveness at all times.

Best Customer Service
We value our relationships with every customer, and our dedicated customer service team is always here to assist you. Due to the vast product offering, all staff members are fully trained and familiar with the latest trends and products. We also offer a dedicated online chat service to answer all your questions and respond immediately. Your satisfaction is always our top priority.

Brands