Speciality Valve is a reliable Thermal Safety Valve Manufacturer in India which we put out high quality safety solutions for protection of pipelines, pumps, storage tanks and industrial systems from thermal expansion. We supply valves which in which even a small increase in temp can cause pressure build up in closed loop systems. We engineer our valves with precision which we make available in stainless steel, carbon steel and bronze and also we are to API, ASME and ISO standards which we put in place for safe, reliable and long lasting performance.
What is a Thermal Safety Valve?
A Thermal Safety Valve (TSV) which is a kind of relief valve that is put in to play when we have over pressure in the system as a result of thermal expansion of trapped liquid. When you have a liquid within a closed system which is heated that liquid expands thus increasing the internal pressure. If this is not controlled it may result in pipeline rupture, equipment failure or full system break down.
The thermal safety valve which at a pre set pressure will open up and discharge a little bit of fluid till the pressure goes back to safe levels it does what is required of it. As for standard safety valves which are put in to handle large scale discharges the thermal safety valves are compact, precise and what we may call engineered for micro discharge issues.
In which also common are water pipes, HVAC systems, fire sprinkler lines, and boilers which see large amounts of liquid expansion.
Thermal Safety Valve Working Principle
The thermal safety valve’s function is simple yet very effective:
- Pressure Accumulation In a sealed pipeline or tank we have liquid which is exposed to heat.
- Set Pressure Operation As internal pressure goes beyond the pre set point the valve springs into action.
- Fluid Release the valve opens a little to let out a controlled amount of liquid which in turn reduces pressure.
- Once pressure is back to safe levels the valve closes and seals tight which in turn stops further leak.
This basic yet reliable system which puts in place safety for even the small scale issue of thermal pressure expansion thus preventing system failure.
How Does a Thermal Valve Work?
A thermal valve acts by responding to changes in temp and pressure as they occur in the system. For example in a water supply line if cold water is caught between two closed valves and is exposed to the sun or a heat source that which causes the volume of the liquid to increase. The trapped liquid has no where to go which in turn may cause pressure to build up greatly.
At the proper location the thermal safety valve opens which is just enough to discharge a few milliliters of liquid and in that process reduces pressure instantly. This makes it an integral safety component in:
- Home and industrial water heating solutions.
- In which temperature fluctuations are present.
- Sprinkler systems which protect pipelines from expansion pressure.
- Process plants handling chemicals and hydrocarbons.
What is the Difference Between Thermal Safety Valve and Pressure Safety Valve?
Although of different types they do vary greatly in function and application:
Feature | Thermal Safety Valve (TSV) | Pressure Safety Valve (PSV) |
Purpose | Protects against thermal expansion of trapped liquid | Protects against sudden system overpressure |
Discharge Volume | Small quantities of liquid | Larger volumes of gas, vapor, or liquid |
Activation | Temperature rise → liquid expansion | Pressure rise → overpressure conditions |
Applications | Pipelines, HVAC, sprinkler lines | Boilers, refineries, compressors, pressure vessels |
Design Focus | Compact, precise, leakage-free | High-capacity relief and emergency protection |
In short, thermal safety valves are preventive, while pressure safety valves are protective against major failures.
Where to Use Thermal Safety Valve?
Thermal protection valves are used in a wide range of industrial and domestic settings. For example:
- Oil and Gas Pipelines For the reduction of pressure which results from solar heating of trapped oil.
- For hot and chilled water circuits to vent excess pressure.
- Boiler and Steam Systems Avoiding system breakage which results from water or steam expansion.
- Fire Suppression Systems Used in sprinkler lines which contain water that may expand due to heat.
- Chemical and Petrochemical Facilities Reducing dangerous pressure in fluid transport systems.
- For safety and to avoid system failures.
Through prevention of system failure thermal safety valves reduce in service outages, extend equipment life, and improve workplace safety.
Components of a Thermal Safety Valve
A thermal safety valve which is typical consists of:
- Valve Body - Made of stainless steel, bronze, or carbon steel.
- Spring Mechanism - Set to open at a certain pressure.
- Disc and Seat - Assembly for tight closure and leak proof operation.
- Fine tuning screw for setting the valve’s pressure.
- Inlet and Outlet Valves - Control fluid discharge.
These components work as a team to provide accuracy, durability, and efficient pressure control.
Advantages of Thermal Safety Valves
- Prevents pipe failure from thermal expansion.
- Handles small but critical discharges effectively.
- Compact size - easy to fit into tight spaces.
- Energy-efficient, releasing only minimal liquid.
- For all industries including HVAC and petrochemicals.
- Long term use with little maintenance.
Why Choose Speciality Valve as Your Thermal Safety Valve Manufacturer in India?
Specialty Valve provides high quality thermal safety valves for tough industrial environments. Here is what industries choose us:
- Wide variety of sizes, pressure classes, and materials (SS, CS, Bronze).
- Built to API, ASME, and ISO international standards.
- Designed to be leak free and precise.
- Available in spring-loaded and direct-acting designs.
- Global partner which has prompt delivery and post purchase support.
- Trusted by oil gas, chemical, HVAC, power, and fire safety industries.
Thermal Safety Valve Specifications
- Size Range: 0.5” to 4.
- Material: Stainless steel, Carbon steel, Bronze.
- Pressure Rating: PT10, PT16, PT25, Class 150, Class 300.
- Temperature Range: From -29°C to +200°C.
- End Connection: Threaded, Flanged, Socket Weld, Butt Weld.
- Operation: Pneumatic device.
- Standards: API 520, ASME Section VIII, ISO 4126 also includes API 520 which is a part of ASME Section VIII and also includes the standard of ISO 4126.
- Applications: Air conditioning, Boilers, Fire protection systems, Oil and gas pipelines, Chemical plants.
Visit Us: https://www.specialityvalve.com/product-category/thermal-safety-valve/, for quick delivery and high quality valves
ADDRESS - 41, 2nd floor, Balasundaram Road, Coimbatore, Tamil Nadu 641018
