91000 Series Temperature Regulator and Thermowells

The 91000 Series (Models 91000, 91400 & 91600) Self-Operating Temperature Regulator is the preferred choice of original equipment manufacturers, mechanical contractors and specifying engineers.

These regulators require no external power source and are ideal for regulating the temperature of tanks, process streams and various types of industrial equipment.

The Actuator is noted for its rugged die-cast aluminum housing, fully enclosed bellows assembly and internal over range protection.

Valve bodies for the 91000 are offered in single-seated, double-seated and 3-way designs and are available in Bronze, Cast-Iron, Cast-Steel and Stainless Steel construction.

The Model 91000 (without indicating dial) features a lower profile and should be specified where space constraints may be an issue.

The Model 91400(with indicating dial) will allow the operator to verify the process temperature and to aid in temperature adjustment.

The Model 91600 Fail-Safe Actuator is designed to cause the valve to fail in the safe control position (open in a cooling application, closed in a heating application) should accidental damage to the thermal system occur, resulting in loss of the pressure charge.