Blog

  1. Why is the minimum specific gravity important on the float level switches?

    If a medium has a lower s.g. than the rated minimum for a float, the float will sink through the media and the switch will not operate.

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  2. WE33-HTD02-T3-A does it really take 20 seconds to open or close? Or am I reading things wrong? Is there a way to get that time down to say 5 seconds. Thanks

    Yes, that is correct. You cannot change the cycle time.

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  3. What is IP68?

    I.P. = Ingress Protection; submersible certification - all tests - solids (0-6) and liquids (0-8).

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  4. What are the two dry product level switch model types? What ranges do they cover? How are they adjusted? How many set-points do they have?

    GSD3DA - gravity (elastomer) suspension, aluminum housing, polyurethane diaphragm, standard 15 amp switch. PSD16A - pneumatic (fabric), suspension, aluminum housing, filter fabric diaphragm, polyester 150 micron permeability, standard 15 amp switch. They can be adjusted to any level. They are adjusted by a screw adjustment. One setpoint available. For additional options, you could look at our CLS2 Series Capacitive Level Switch, TFLS Series Tuning Fork Level Switch, PLS and PLS2 Series Paddle Level Switches.

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  5. What two types of continuous signal feed back can Proximity provide with the position indicator?

    Resistive (potentiometer) and current (transmitter).

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  6. How many different size housings does Proximity provide for position indication? How many switches in a single housing?

    Two sizes: 2-switch and 4-switch housings.

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  7. What two basic types of position indication are provided with the Proximity position indicator?

    Visual (mechanical) and electrical.

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  8. What if I need parts for my Hi-Flow™ control valve?

    Many Hi-Flow™ valves have been in service for 15+ years with all original parts. However, since Hi-Flow™ valves are commonly used in steam service, a severe application, some parts may wear over time. Unlike other control valves, Hi-Flow™ valves are designed with removable seat rings making repair or replacement of components an option. Although all parts are available, you will probably never need more than a seat ring, plug assembly, and stem packing to have a valve that is like new.

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  9. Hi-Flow™ control valves call out ANSI B16.104 Class IV flow leakage. What does this mean?

    ANSI B16.104 is a testing specification for control valves. This specification has actually been superseded by ANSI/FCI 70-2 Class IV. The class IV designation defines the allowable amount of leakage through the valve seat in the closed position. Class IV allows for .01 percent of the rated flow (Cv), to pass through the seat. Class IV is common for metal to metal seated valves.

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  10. What is the key feature of both Proximity position indicators and level switches that sets these products apart from all competitors?

    Magnetic coupling.

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