--- product_id: 807226754 title: "4-Pack WiseWater Normally Closed 2-Wire 24V AC/DC Electric Thermal Actuator, 2-Wire Connection Electric Actuator with M30*1.5 Thread for Floor Heating Manifold in Underfloor Heating System" brand: "wisewater" price: "HK$2391" currency: HKD in_stock: true category: "Wise Water" url: https://www.desertcart.hk/products/807226754-4-pack-wisewater-normally-closed-2-wire-24v-ac-dc store_origin: HK region: Hong Kong --- # 24V AC/DC power 2W ultra-quiet operation 3-5 min fast response 4-Pack WiseWater Normally Closed 2-Wire 24V AC/DC Electric Thermal Actuator, 2-Wire Connection Electric Actuator with M30*1.5 Thread for Floor Heating Manifold in Underfloor Heating System **Brand:** wisewater **Price:** HK$2391 **Availability:** ✅ In Stock ## Summary > 🔥 Elevate your floor heating game with silent precision ⚡ ## Quick Answers - **What is this?** 4-Pack WiseWater Normally Closed 2-Wire 24V AC/DC Electric Thermal Actuator, 2-Wire Connection Electric Actuator with M30*1.5 Thread for Floor Heating Manifold in Underfloor Heating System by wisewater - **How much does it cost?** HK$2391 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/807226754-4-pack-wisewater-normally-closed-2-wire-24v-ac-dc) ## Best For - wisewater enthusiasts ## Why This Product - Trusted wisewater brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Compact & Durable Design:** Flame-retardant, IP54 rated, and lightweight for discreet, reliable performance in any setting. - • **Whisper-Quiet Efficiency:** Low 2W power consumption with noise-free operation keeps your space peaceful and energy-smart. - • **Versatile HVAC Compatibility:** Perfect for floor heating manifolds, radiators, and central AC systems in homes and commercial spaces. - • **Seamless Smart Heating Control:** Integrate effortlessly with your thermostat for automated, consistent comfort. - • **Tool-Free Snap-On Installation:** M30x1.5 thread and 2-wire design make setup and maintenance a breeze—no tools needed. ## Overview This 4-pack of WiseWater 24V AC/DC electric thermal actuators offers fast 3-5 minute valve response with low 2W power consumption and whisper-quiet operation. Designed for easy, tool-free installation with M30x1.5 threading and 2-wire connection, these compact, flame-retardant actuators provide reliable temperature control for underfloor heating manifolds and HVAC systems, ensuring efficient, automated comfort in residential and commercial environments. ## Description Features:Installation and Disassembly: Tighten the nut clockwise into the valve, align the thermal actuator with the nut position, and press down to install it in place. Press the side button and simultaneously lift the actuator to disassemble, no needs for tools like pipe pliers or clamps.Practical Controller: The normally closed actuator is applied to control the valve closing and opening of the radiator, underfloor heating system and so on, specifically for the electric drive part of the branch valve, small valve, and dynamic balance valve of the water manifold.Description：Type: normally closedVoltage: 24V AC/DCRated power: 2WWorking temperature: 23-140 ℉Thrust: 110NResponse time: 3-5 minWire length: around 70 cm/ 27.6 inchesWeight: 0.22 lbProtection level: IP54Package list: 4 x Electric thermal actuator 4 x Manual ## Features - [Automatic Temperature Control]: The electric actuator is connected to the thermostat (not included), and applied to automatically control the opening and closing of the valve in floor heating system, maintaining a constant and comfortable room temperature, and adding your floor heating into home automation. - [Effective and Low Noise]: PTC thermistor inside the actuator adopted emiconductor heating ceramic, thus make wax cup expand quickly, with a quick response of 3-5 minutes, power on to uniformly execute the opening process which avoids water hammer. 2W low power working, normally closed actuator runs without noise and is energy-saving. Voltage: 24V AC/DC, suitable for various fields. - [Easy to Install]: M30x1.5 nut connection, the electric thermal actuator is easy to install and disassemble, no tools required. Change the nut if you want to install the actuator on valves of other sizes. 2-Wire connection, wire length: about 27.6 inches, simple to connect with power cord, and the valve of each loop needs to be equipped with 1 thermal actuator. - [Reliable and Practical]: Made of flame retardant material, working temperature: 23-140 ℉, the WiseWater thermal actuator has a small size of about 1.77 x 1.93 x 2.24 inches, lightweight and space-saving, and can achieve the temperature control of rooms easily. There is an indicator cover at the top to inform you of the working status of the actuator. - [Wide Application]: The actuator is widely applied as a device for remote control of flow and indirect control of heat in system, suitable for heating and temperature control of central air conditioning, radiator and floor heating system in residential areas, shopping malls, home and hotels. It is an efficient and reliable solution for temperature control. ## Images ![4-Pack WiseWater Normally Closed 2-Wire 24V AC/DC Electric Thermal Actuator, 2-Wire Connection Electric Actuator with M30*1.5 Thread for Floor Heating Manifold in Underfloor Heating System - Image 1](https://m.media-amazon.com/images/I/611d5E3PELL.jpg) ![4-Pack WiseWater Normally Closed 2-Wire 24V AC/DC Electric Thermal Actuator, 2-Wire Connection Electric Actuator with M30*1.5 Thread for Floor Heating Manifold in Underfloor Heating System - Image 2](https://m.media-amazon.com/images/I/616BkdUwO5L.jpg) ![4-Pack WiseWater Normally Closed 2-Wire 24V AC/DC Electric Thermal Actuator, 2-Wire Connection Electric Actuator with M30*1.5 Thread for Floor Heating Manifold in Underfloor Heating System - Image 3](https://m.media-amazon.com/images/I/61BdaMeTQiL.jpg) ![4-Pack WiseWater Normally Closed 2-Wire 24V AC/DC Electric Thermal Actuator, 2-Wire Connection Electric Actuator with M30*1.5 Thread for Floor Heating Manifold in Underfloor Heating System - Image 4](https://m.media-amazon.com/images/I/51MDw+4q6sL.jpg) ![4-Pack WiseWater Normally Closed 2-Wire 24V AC/DC Electric Thermal Actuator, 2-Wire Connection Electric Actuator with M30*1.5 Thread for Floor Heating Manifold in Underfloor Heating System - Image 5](https://m.media-amazon.com/images/I/713T51I-qlL.jpg) ## Available Options This product comes in different **Model** options. --- ## 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.hk/products/807226754-4-pack-wisewater-normally-closed-2-wire-24v-ac-dc](https://www.desertcart.hk/products/807226754-4-pack-wisewater-normally-closed-2-wire-24v-ac-dc) --- *Product available on Desertcart Hong Kong* *Store origin: HK* *Last updated: 2026-08-02*