952-935-2345   24/7 SUPPORT

FIND PRODUCTS FOR:

Home > Armstrong > Pressure and Temperature Control > Temperature Regulators

OB-30/31 Direct-Acting Temperature Regulators

OB-30/31 Direct-Acting Temperature Regulators
OB-30/31 Direct-Acting Temperature Regulators
Armstrong

For steam, air and non-corrosive liquids

The Armstrong OB-30/31 is a direct-acting temperature regulator that requires no external source for operation. Simple and compact, the unit is suitable for a wide variety of heating/cooling applications. Installing, adjusting or maintaining the OB-30/31 is quick and easy, because interchangeable capillaries mount in any position and disconnect by simply loosening the union nut. No stem packing, so there’s no leakage. Single composition seat for tight shutoff. The OB-30/31 comes in 1/2", 3/4" or 1" (15–25 mm) sizes and is available with a choice of five temperature ranges and three capillary lengths.




Download Center

Product Literature 

Installation and Maintenance 

Submittal Drawing
Related Items
TD5100 Temperature Monitoring
TD5100 Temperature Monitoring
OB-2000 Diaphragm-Operated Temperature Regulators
OB-2000 Diaphragm-Operated Temperature Regulators
OB-2000L Diaphragm-Operated Temperature Regulators
OB-2000L Diaphragm-Operated Temperature Regulators
OB-2000PT Diaphragm-Operated Pressure/Temperature Combination Regulators
OB-2000PT Diaphragm-Operated Pressure/Temperature Combination Regulators
OBK-2000 Pneumatic Temperature Controllers
OBK-2000 Pneumatic Temperature Controllers
Water Temperature Control—Single Point of Use—Thermostatic
Water Temperature Control—Single Point of Use—Thermostatic
Browse Similar Items