GESTRA Clorius

Self-acting temperature controllers system

Description

GESTRA Clorius Self-acting temperature controllers system

Mechanical Temperature Regulators

The GESTRA Clorius system is a mechanical, self‑acting temperature control valve combined with an external sensor that adjusts temperature without requiring external power.

Key aspects:

It is a self‑acting mechanical regulator: it adjusts temperature changes purely through the physics of the system (sensor, capillary tube, measuring fluid, piston) without electric or pneumatic power.
It is used in heating and cooling processes across industrial plants, HVAC (heating, ventilation, air conditioning) systems, marine engineering, and building services.
It can regulate liquids, gases, and vapors with suitable design choices.
Housed components include a valve, a thermostat, a sensor and capillary line, and optionally cooling units or sensor pockets.

Features

Self-acting without auxiliary energy
For use in hazardous areas
Low installation costs
Long service life and operational reliability

Application

Temperature control in heating and cooling processes in industrial plants, for h.v.a.c services and marine engineering.
For liquids, gases, vapours.

Design

The self-acting temperature controller consists of a valve featuring a thermostat and a sensor.
According to the service conditions the controller is optionally equipped with a cooling unit or a sensor pocket.
The temperature sensed by the sensor changes the volume of the measuring liquid in the capillary tube.
The resulting pressure acts directly on the actuating piston which, in turn, operates the valve spindle.
As the temperature rises, the regulating valve is held in closed positon (heating process) or open position (cooling process) until the pre-set release temperature is reached.
When the temperature drops again, a builtin return spring resets the valve to original position.

Valves

Two-way valves, with single seat or pressure-balanced single/double seat.
Double-seated, two-way reverse-acting valves or three-way valves for diverting and mixing applications.
Valve components made of gunmetal, cast iron, nodular cast iron or cast steel, with flanged or screwed connections.

Thermostat

The thermostat is firmly attached to the sensor capillary tube. The rod-, spiral- or airduct-type sensors are made of copper or high-alloy stainless steel.
The capillary tube is available in different lengths, made of copper or high-alloy stainless steel.