Dwyer Mark Series Valve Position Indicator
The Dwyer Mark Series position indicators work well with direct drive applications, such as rotary valves, or lever drive applications, such as linear valves. Standard models are weatherproof, explosion-proof and submersible.
The Dwyer Mark Series position indicators include three models: Mark 1, Mark 3, and Mark 4. All standard models have visual position indicators and are weatherproof, explosion-proof, and submersible. Each indicator has the option to hold up to six switch outputs. The Mark Series offers 14 different versions of switch outputs such as: inductive sensors, high temperature sensors, hermetically sealed switches and more.
Mark 1 & Mark 3 feature a magnetic coupling that isolates the switch compartment, completely sealing the unit from the surrounding atmosphere for maximum hazard and leak protection. Both models are ideal for corrosive environments. Mark 3 can also be used for multi-turn applications with one to 25 revolutions.
Mark 4 has a thru-shaft design that features a 1" bearing for long life and o-rings to seal the switch compartment for hazard, corrosion, and leak protection. It is a lower cost alternative to the Mark 1 Series for less demanding applications.
- Mark 1 & Mark 4: EZset cams on switch models for simple set point adjustment
- Multiple switches and transmitter options
- Coated aluminum or cast 316 stainless steel enclosure
- Visual indicator comes standard on units that display Open/Close status
