Thermostats  Manufacturers, Traders, Suppliers

Thermostatical bypass valve to bypass the radiator at cold start and let the cold oil circulate inside the system without being cooled.
This enables the oil or water/glycol to heat up quickly to the perfect operating temperature.
Unlike integral thermostats, housing thermostats already possess a housing with an optimally designed mixing chamber.

Trafag is a leading international supplier of high quality sensors and monitoring instruments for measuring pressure (i.e. pressure transmitters, pressure sensors and pressure switches, pressostats), temperature (thermostats and temperature transmitters) and SF6 gas density (SF6 gas density monitors and SF6 gas density sensors). A wide range of standardized, configurable products is available. Trafag is also specialized in developing tailored-made solutions for OEM-clients.
Trafag, a Swiss based company founded in 1942, is supported by a broad net of subsidiaries and representatives in over 40 countries all over the world. This allows Trafag to offer customers an individual and competent advisory service. High-performance development and production departments guarantee not just the timely delivery of our products with highest quality and precision, but also ensure that customer-specific requirements are met to absolute satisfaction.
"Trafag products: https://www.trafag.com/en/products
Brochures: https://www.trafag.com/en/supportservice/brochures-catalogue
Catalogues: https://www.trafag.com/en/supportservice/products-catalogue
Product literature: https://www.trafag.com/en/supportservice/product-literature
Trafag - Innovation, Reliability, Quality
Trafag is a leading international supplier of high quality sensors and monitoring instruments for measuring pressure (i.e. pressure transmitters, pressure sensors and pressure switches, pressostats), temperature (thermostats and temperature transmitters) and SF6 gas density (SF6 gas density monitors and SF6 gas density sensors). A wide range of standardized, configurable products is available. Trafag is also specialized in developing tailored-made solutions for OEM-clients.
Trafag, a Swiss based company founded in 1942, is supported by a broad net of subsidiaries and representatives in over 40 countries all over the world. This allows Trafag to offer customers an individual and competent advisory service. High-performance development and production departments guarantee not just the timely delivery of our products with highest quality and precision, but also ensure that customer-specific requirements are met to absolute satisfaction.
https://www.trafag.com
info@trafag.com
Find your partner: https://www.trafag.com/en/trafag/trafag-worldwide "

• Comprehensive HVAC Compatibility – Suitable for heating, cooling, ventilation, and air curtain systems.
• Smart Connectivity – Supports WiFi, Zigbee, Modbus, BACnet, and KNX for seamless integration with BMS and smart home platforms.
• Energy Efficiency – Programmable schedules, ECO, and adaptive control minimize energy costs.
• User-Centric Design – Touchscreen, knob, and button types with clear and responsive interfaces.
• Flexible Installation – Surface and embedded mounting meet diverse interior needs.
• Reliable Quality – CE, RoHS, and UKCA certified for stable, long-term performance.
• Customizable Solutions – OEM/ODM service available for tailored technical or branding needs.

• Application Scope: Compatible with fan coil units, underfloor and electric floor heating, radiator systems, boilers, heat pumps, air handling units (AHUs), and combined HVAC systems.
• Power Supply: 230 VAC ± 10%, 50/60 Hz; 24 VAC/DC options available for BMS and control panels.
• Temperature Range: 5 – 35 °C adjustable setpoint; accuracy ±0.5 °C; resolution 0.5 °C.
• Sensors: Built-in NTC room sensor; optional external sensor for floor or remote temperature monitoring; outdoor sensor input for weather compensation.
• Control Outputs: On/Off relay outputs (5 – 16 A) for valves, actuators, or boilers.
• 0–10 V DC or PWM output for modulating valves and EC fans.
• Optional OpenTherm interface for modulating boiler control.
• Communication Protocols: Wi-Fi, Zigbee, Modbus RTU/TCP, BACnet, or wired integration with central controllers and gateways.
• Display & Interface: LCD or color TFT screen with backlight; touch, button, or knob operation; mode and status indicators; child lock and key lock functions.
• Operating Modes: Auto / Manual / Heating / Cooling / ECO / Holiday / Anti-freeze / Schedule.
• Programming: Up to 6 time events per day; 5+2, 7-day, or custom weekly programs.
• Mounting Options: Wall-mounted (surface or flush) for residential and commercial use; DIN-rail and panel versions available for system integration.
• Environmental Conditions: Operating 0 – 50 °C; storage –10 – 60 °C; protection rating IP20 (higher ratings optional).
• Material & Finish: Flame-retardant ABS housing; available in white or black finishes.
• Certifications: CE, RoHS, UKCA; compliant with EN 60730-1 / EN 60730-2-9 standards for automatic electrical controls.

• Residential buildings: homes, apartments, villas
• Commercial buildings: offices, hotels, shopping centers, restaurants
• Educational facilities: schools, universities, training centers
• Healthcare facilities: hospitals, clinics, nursing homes
• Industrial facilities: factories, warehouses, workshops
• Public spaces: airports, stations, museums, exhibition halls
• Retrofit projects: upgrading existing heating, cooling, and ventilation systems
• New construction projects: residential, commercial, and industrial developments