Idemsa, S. A.

Description:

• Self-Operating Design
• Indicating, Non Indicating or Safety Models Available
• Heavy Duty Die Cast Aluminum Housing
• 1/2" thru 6" Valve Sizes
• Fully Enclosed Bellows
• Internal Overrange protection

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 Actutator 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 singleseated, 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.

For optimal performance, the service conditions (medium, flow, temperature, inlet and outlet pressures) of the application must be considered when selecting a valve. Please refer to the Valve Selection Section of this catalog. For applications where the process media may be corrosive or contained under pressure, the use of a thermowell is required to prevent damage to the regulator bulb and facilitate its removal from the process. Improper application may cause failure of the valve, resulting in possible personal injury or property damage.

Specifications:

Actuator Models:					91000	(Non-Indicating)
								91400	(Indicating Dial)
								91600	(Fail-Safe)

Power Requirements:			Fully self-contained – no external power required

Dial Thermometer:				31/2" dial, stainless steel case, swivel and angle adjustment (Model 91400 only)

Housing:						Die cast aluminum, epoxy powder coated blue finish

Set Point Scale:					Integral to housing

Bellows:					        	High pressure brass, corrosion resistant, tin plated finish

Adjustment Screw:				Brass

Adjustment Screw Bushing:		Lubricant impregnated sintered bronze

Range Adjustment Spring:		Cadmium Plated

Overrange Protection:				Upper range limit +100°F for temporary situations (not available for Model 91600)

Approximate Shipping Weight:		Actuator model 91000:	6.0 lbs	[2.70 kg]
								Actuator model 91400:	6.6 lbs	[2.97 kg]
								Actuator model 91600:	9.5 lbs	[4.32 kg]

Valve:							See Valve Selection tables

Dimensions:

Standard ranges:

* Not recommended for single seated valves.

The recommended working span typically falls within the upper third of the nominal range. Single Seat In-To-Close, all Double Seat, and all 3-Way valves have a recommended working span in this part of the nominal range. However, due to differing thrust requirements, Single Seat In-To-Open valves have a recommended working span in the middle one-third of the nominal range.