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Level Controllers

Our product range contains a wide range of Single Stage Top Mount Displacer Type Level Control

Single Stage Top Mount Displacer Type Level Control

  • Number Of Flower Single Stage Top Mount Displacer Type Level Control
  • Brand Name DWYER USA
  • Availability 32 Lb (14.5 Kg).
  • Application Compatible Liquids.
  • Condition New
  • Certfication YAS
  • Warrenty 1yr

Single Stage Top Mount Displacer Type Level Control

Series 190 Single Stage Top Mount Displacer Type Level Control

Fixed or Adjustable Deadband, For Pumps or Alarms

The most versatile liquid level controls in our line, displacer controls can be used to trigger alarms, provide shutdown or operate pumps.

Operation: Mercoid Displacer Controls use displacers that do not float on the surface of liquids, but are suspended on a coil spring. They work on the principle that submerged solids weigh less in liquids, and as the liquid level rises and their weight decreases, the tension on the spring by which they are suspended is decreased. This allows the spring to move the cable and armature upward, actuating the hermetically sealed switches. Because they work on a different principle than float type liquid level controls, displacers are not affected by turbulence, or pressure, and are excellent for applications with viscous or dirty liquids.

Dimensions are based on 316SS displacers with 4" minimum flange type control. All dimensions are approximate and will vary depending on specific gravity, temperature, displacer material and size. Critical dimensions must be verified with the factory before placing order.

Standard Construction: 316SS displacers, 10 foot 316SS cable and stops, 49 125# CI flange: for operation in specific gravities as low as 0.5 and a maximum temperature of 200F (93C). For special conditions, other choices include: 316SS displacers: longer cable: monel or hastelloy cable and stops: other flange sizes, materials or pressure ratings, or 3/4" NPT top connection in lieu of flange.

Product Applications

  • Pumping stations
  • Foaming liquids
  • Sanitary/sewage treatment
  • Paints & varnishes
  • Agitated or turbulent fluidsHeavy oil refineries
  • Chemical plantsPower generating stations
  • Viscous or dirty liquids

Specifications

  • Service:Compatible liquids.
  • Wetted Materials:Cable, spring and stops: 316 SS. Optional Inconel spring; Displacers: 316SS. Optional 304 SS, 316 SS, or carbon graphite.
  • Temperature Limits:Ambient Temperature: 32 to 200F (0 to 93C);Process Temperature: 32 to 200F (0 to 93C).
  • Pressure Limit:125 psig (8.6 bar). Higher ratings available.
  • Enclosure Rating:NEMA 4X. Optional general purpose or explosion-proof.
  • Switch Type:SPDT snap switch, hermetically sealed snap switch, or mercury switch. Optional DPDT or two stage.
  • Electrical Rating:Snap switch: 12 A @ 120 VAC, 5 A @ 240 VAC, 0.5 A @ 125 VDC resistive, 0.25 A @ 250 VDC resistive; Hermetically sealed snap switch: 5 A @ 120 VAC, 5 A @ 240 VAC, 5 A @ 30 VDC resistive; Mercury switch: 4 A @ 120 VAC/DC, 2 A @ 240 VAC/DC. Higher contact ratings available for the mercury switch.
  • Electrical Connections:Screw terminal.
  • Conduit Connection:3/4" female NPT.
  • Process Connections:4" 125 cast iron flange. Other material, size, and rating flanges are available.
  • Mounting Orientation:Vertical.
  • Set Point Adjustment:Adjustable by moving displacers, see dimension chart for minimum and maximum values.
  • Specific Gravity:Standard is 1.0. Specify when ordering by replacing 1.0 in model number with specific gravity setting desired. Settable range is 0.5 to 1.2.
  • Cable Length:10 ft (3 m) standard. Optional up to 100 ft (30.5 m).
  • Weight:General purpose or watertight enclosure with 4" 125# cast iron flange approximately 28 lb (12.7 kg); Explosion-proof or explosion-proof/vapor-proof approximately 32 lb (14.5 kg).
  • Agency Approvals:UL, none on HM switch.Inconel is a registered trademark of Huntington Alloys Corporation.

Additional Information:

Payment Terms : L/C, D/A, D/P, T/T, Western Union,

Delivery Time : 4-6 WEEK

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