Model 371MT7

  • Fits all Series II & Series III-L valves
  • 2 position and 3 position
  • 30 VDC max, 500 mA (PLC compatible)
  • Designed for Division I and I.S. use
  • UL & ATEX / IECEx certified
  • NEMA 4X, IP66

Barksdale's position indicators are sensitive feedback devices that can be attached to Series II & Series III-L valves to provide valve status feedback. Using Barksdale's know-how in electric switch technologies, the position indicator senses any of the three valve positions and signals this information through an electrical contact. With a housing constructed of all stainless steel material, this product is designed for use in heavy industrial environments and in the most demanding applications. The explosion proof rating is Division I, Class I.

In applications where feedback from the valve is desirable, Barksdale's position indicator replaces such devices as proximity sensors, pressure switches and limit switches. Position indicators come already installed and calibrated on our Series II & Series III-L valves, saving installation costs for the customer.


General Specifications*

Housing Material: Stainless steel
Enclosure: NEMA 4X, IP66
Electrical Rating:
Electrical Connection:
Electrical Cable:

Maximum Contact Resistance:

30 VDC max, 500 mA (carry current)
½” NPT rotating female conduit connection with 3 ft (36 in) cable
UL listing, 4 conductors, 22 AWG TPE fl ame resistant jacket.
Resistance to oils, fuels, and solvents
100 milliohms
100 megaohms minimum(@ 250 VDC)
Switch Type: SPST
Approvals: cULus: Class I, Groups A (UL only), B, C & D, Class II, Groups E, F & G. Intrinsically safe when installed per I.S. Control Drawing 272263.
ATEX/IECEx certification: CE 0081 DEMKO 09 ATEX 0816092X
Ex II 2 G D, Ex d IIC T6 Gb, Ex ib IIC T6 GB, Ex tb IIIC T80°C Db IP66, -40°C ≤ Tamb ≤ +60°C
IECEx UL 08.0022X
Valve Position 2-Way
Feedback: 3-Way
Operating Temperature: -40 to +140°F (-40 to 60°C)
Installation Instructions: – Connect electrical wires
– Lightly lubricate the position indicator O-rings (2)
– Fully insert switch into stop screw
– Rotate position indicator for optimum cable exit
– Secure set screws (2)
Weight: 2 lbs.
* See Product Confi gurator for additional options.


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