--- product_id: 541851897 title: "Wengart 230V Underfloor Heating Actuator WG03, M30 x 1.5mm Thermal Electric Actuator for Manifold, Normally Closed 2-Wire with Side Stroke Indicator, Silent Energy-Efficient Replacement, IP54" brand: "wengart" price: "¥4040" currency: JPY in_stock: true reviews_count: 6 category: "Wengart" url: https://www.desertcart.jp/products/541851897-wengart-230v-underfloor-heating-actuator-wg03-m30-x-1-5mm store_origin: JP region: Japan --- # 230V AC power for reliable operation Noiseless, maintenance-free design Easy nut connection mounting Wengart 230V Underfloor Heating Actuator WG03, M30 x 1.5mm Thermal Electric Actuator for Manifold, Normally Closed 2-Wire with Side Stroke Indicator, Silent Energy-Efficient Replacement, IP54 **Brand:** wengart **Price:** ¥4040 **Availability:** ✅ In Stock ## Summary > 🔥 Upgrade your comfort with silent, smart heating control! ## Quick Answers - **What is this?** Wengart 230V Underfloor Heating Actuator WG03, M30 x 1.5mm Thermal Electric Actuator for Manifold, Normally Closed 2-Wire with Side Stroke Indicator, Silent Energy-Efficient Replacement, IP54 by wengart - **How much does it cost?** ¥4040 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/541851897-wengart-230v-underfloor-heating-actuator-wg03-m30-x-1-5mm) ## Best For - wengart enthusiasts ## Why This Product - Trusted wengart brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fail-Safe Spring Return:** Valve closes instantly on power failure, ensuring safety and system integrity. - • **Robust & Compact Design:** Strong metal base with compact size fits seamlessly into your underfloor heating manifold. - • **Silent Precision Control:** Experience whisper-quiet valve operation that keeps your space serene. - • **Energy-Smart Thermal Expansion:** Paraffin-driven actuator closes automatically to save energy when set temperature is reached. - • **Quick Installation & Maintenance-Free:** Nut connection mounting allows fast setup with zero upkeep hassle. ## Overview The Wengart Thermal Actuator Valve WG03 is a compact, noiseless, and maintenance-free electric actuator designed for underfloor heating manifolds. Operating on 230V AC with a paraffin-based thermal expansion mechanism, it ensures precise valve control with energy-saving automatic closure. Featuring a robust metal base and easy nut connection mounting, it offers quick installation and reliable spring return valve closure during power outages, making it an ideal upgrade for efficient, silent home heating management. ## Description Wengart Thermoelectric Actuator is adapted to work with the central and underfloor heating system.The actuator is perfect for every household,Fits most manifolds to the M30 thread.With spring return function，Valve closed after power failure.Location indication of the trip. Simple, quick and easy to disassemble.The actuator opens and closes the valve on the underfloor manifold according to the signal required by the room thermostat or digital programmable thermostat. Specification: Ambient temperature:-5-50℃Thrust:100N2 x0.5 mm² Wire Normally ClosedM30 Thread:M30x1.5mmStroke Lenght:3mmVoltage: AC230V ±10% 50/60HzStable Power Comsuption:3WFull Time:180-300sCable Length：800mmShell Material:PCProtection Class:IP54 Review: +stronger base; -harder to fit - I got these because my old actuators kept popping off, so I wanted ones with a stronger base. These metal bases are much better than my old plastic bases, but they were tricky to screw down as they don't seem to separate from the actuator (and I don't have much space around the manifold). So solving the problem of popping off makes them harder to fit! The instructions talk about a red clip, but these actuators don't have any clips. My old actuators had a very clear indicator of whether they were open or closed. The *only* thing wrong with these new actuators is you can't tell whether they are open or closed. Review: Top, läuft einwandfrei und zudem nicht teuer. Komme gern wieder. ## Features - Dependent on thermal expansion and contraction, no mechanical transmission, no component wear and tear, paraffin propulsion element, driven by PTC heating, noiseless working operation, maintenance-free, long service life - Position indication with trip - Separate chamber control to reduce energy consumption and close the valve when the temperature reaches the set temperature when used with a thermostat - Nut connection mounting method for easy disassembly and quick and easy installation. - Compact size of the electric heating actuator, synchronised with the underfloor heating installation without taking up space in the room ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B2QJJ7RS | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 310,228 in DIY & Tools ( See Top 100 in DIY & Tools ) 203 in Floor Heating | | Customer Reviews | 4.4 4.4 out of 5 stars (27) | | Date First Available | 31 May 2022 | | Item Package Quantity | 1 | | Item Weight | 140 g | | Item model number | WG03 | | Manufacturer | WENGART ELECTRIC Co.,Ltd | | Material | Plastic | | Product Dimensions | 4.09 x 4.09 x 6.5 cm; 140 g | | Voltage | 230 Volts (AC) | | Wattage | 2 watts | ## Images ![Wengart 230V Underfloor Heating Actuator WG03, M30 x 1.5mm Thermal Electric Actuator for Manifold, Normally Closed 2-Wire with Side Stroke Indicator, Silent Energy-Efficient Replacement, IP54 - Image 1](https://m.media-amazon.com/images/I/61iHDlH90YL.jpg) ## Customer Reviews ### ⭐⭐⭐ +stronger base; -harder to fit *by A***R on 26 February 2026* I got these because my old actuators kept popping off, so I wanted ones with a stronger base. These metal bases are much better than my old plastic bases, but they were tricky to screw down as they don't seem to separate from the actuator (and I don't have much space around the manifold). So solving the problem of popping off makes them harder to fit! The instructions talk about a red clip, but these actuators don't have any clips. My old actuators had a very clear indicator of whether they were open or closed. The *only* thing wrong with these new actuators is you can't tell whether they are open or closed. ### ⭐⭐⭐⭐⭐ Review *by S***N on 20 February 2026* Top, läuft einwandfrei und zudem nicht teuer. Komme gern wieder. ### ⭐⭐⭐⭐⭐ Review *by F***I on 4 December 2025* E' pienamente compatibile con le valvole standard per impianti di riscaldamento e fa il suo dovere. Raccomandata! ## Frequently Bought Together - Wengart Thermal Actuator Valve WG03, Normaly Closed 2 Wire AC230V for Underfloor Heating Manifold with Itinerary - Wengart Underfloor Heating Actuator WG20, M30*1.5 Normaly Closed AC230V Suitable for Almost All Common Heating Circuit Manifolds (1) - Heatmiser UH8 - 230v 8 Zone Wiring Centre --- ## 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.jp/products/541851897-wengart-230v-underfloor-heating-actuator-wg03-m30-x-1-5mm](https://www.desertcart.jp/products/541851897-wengart-230v-underfloor-heating-actuator-wg03-m30-x-1-5mm) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-10*