Home / Product / Globe Control Valve / 
DELCO Self-operated Temperature Control Valve - Bellows Balanced, No External Power
The DELCO Self-operated Temperature Control Valve is an energy-saving solution designed for precise temperature regulation of non-corrosive gases, liquids, and steam. Operating without external energy, it utilizes a sensitive thermostat actuator based on thermal expansion principles. The valve features a Bellows + Spring pressure balance mechanism, ensuring high sensitivity, low noise, and reliable performance even under fluctuating pressures.
Features
An energy-efficient self-acting temperature regulating valve featuring a bellows-balanced core and thermostat actuator for stable control of steam and fluids without external power.
✅Energy-Independent Control: Operates purely on the thermal expansion of the liquid within the thermostat sensor, eliminating the need for electricity or compressed air, making it ideal for remote or explosion-proof areas.
✅Bellows Balanced Mechanism: The internal SS316 Bellows + SS304 Spring assembly balances fluid pressure across the plug, allowing the valve to operate smoothly with high sensitivity even when handling high-pressure media.
✅Versatile Thermostat Options: Equipped with a detachable thermostat actuator available in multiple temperature ranges. It works on the principle of liquid incompressibility and thermal expansion to drive the valve stem.
✅Robust Body Construction: Available in diverse materials including WCB, WC6, SS304, and SS316 with flanged (ANSI/JIS/DIN), threaded (NPT/BSP), or welded ends to suit various industrial piping standards.
✅Oil-Free Option: For applications requiring high cleanliness (such as food or pharma), a special lubricant-free version is available to prevent contamination of the process medium.
Photo
Key Application Fields
-
Oil & Gas
DELCO API-certified valves ensuring safety and reliability in demanding high-pressure pipelines. -
Chemical & Petrochemical
DELCO corrosion-resistant solutions tailored for handling aggressive acids and hazardous fluids safely. -
Power Generation
DELCO solutions efficiently withstand extreme high-temperature and high-pressure steam cycles in power plants. -
Food & Pharmaceutical
DELCO sanitary valves with FDA-compliant, crevice-free designs to ensure absolute product purity. -
Water & Wastewater
Durable municipal solutions by DELCO, designed for zero leakage and long-term sustainability. -
HVAC & District Heating
DELCO valves ensure precise flow regulation to optimize energy efficiency in modern buildings.
Browse our case studies or talk directly with our engineers to discuss your application.
Send Your Inquiry
Not sure which valve fits your project? Our engineers provide fast selection support and OEM customization.
For a faster and more precise quotation, kindly include details such as:
- The model or features you are looking for
- Your estimated purchase quantity
- Any OEM / branding requirements
- Target market or application
