The HAT/RA is an inline, self-operating temperature control valve designed to regulate cooling fluid flow in applications such as compressor, die-casting, and heat exchanger systems. It features a stainless steel body, fittings, spring, and plug, with brass or stainless steel internals depending on variant, and operates without external power by modulating flow in response to temperature changes. The valve has a compact, low-mass design for fast response, two wrench flats for installation, and a ram-type plug for reliable shut-off. It is rated for a maximum operating pressure of 200 PSIG (13.8 BAR) and a maximum temperature of 300°F (149°C), with setpoints available from 40°F to 210°F. Valves with stainless steel internals are NSF/ANSI/CAN 61 and 372 certified.
As the fluid temperature increases to within the operating range of the HAT/RA, the thermal actuator modulates the valve open. If the fluid temperature is above the acceptable range, the valve will continue to modulate open allowing additional fluid discharge. As the outlet temperature falls, the valve then modulates toward the closed position, reducing flow. This modulating action maintains a relatively constant fluid temperature even as operating conditions vary.
The HAT/RA reverse acting valve may be used to regulate the flow of cooling water, glycol or other cooling media in applications requiring economical removal of heat from equipment or a process. Since the HAT/RA valves open on rising temperatures, they can be used in many thermal relief valve applications.
| ThermOmegaTech® | |
|---|---|
| Product Category | Industrial Valves |
| Product Number | HAT/RA |
| Product Name | Temperature Control Valve |
| Valve Type | Control Valve; Shut Off |
| Primary Material | Stainless Steel |
| Media | Water; Chemical |
| Valve Size | 1.30 to 1.50 inch (33.02 to 38.10 mm) |
| Maximum Pressure | 70.00 to 200.00 psi (49.26 to 141 m H2O) |
