Kobold VKP Viscosity Compensated Flowmeter / Switch

Kobold VKP Viscosity operate on a special suspended float principle with cylindrical measuring tube and spring-loaded float with orifice. The float in model VKP-3... has slots moulded on the outside, which protect the instrument from soiling by depositing dirt particles. The danger of the float jamming is thus considerably reduced and soiled liquids with a particle size up to 400 μm can be measured without difficulty. In model VKP-2... a sharp-edged orifice in the float renders the instrument less sensitive to changes in viscosity.

Kobold VKP Viscosity Compensated Flowmeter / Switch

Kobold VKP Viscosity Applications

• Lubrication circuits
• Domestic electrical
• installations
• Machine tools
• Solar energy systems
• Cooling circuits
• Welding machines
• Pumps

Measuring/switching range:

• 2 - 20 ... 20 - 100 l/min water
• 1 - 18 ... 10 - 75  l/min oil

Connection: G 1, 1" NPT male thread, solded pipe, connection parts G ½, G ¾
Material: polysulfone, stainless steel 1.4310
Pmax: 16 bar
Tmax: 120°C
Accuracy: ±5 % of the full scale
Option: reed contact

Kobold VKP Viscosity Technical Details

• Housing: polysulfone
• Connections:
  G1 male thread;
  1" NPT male thread
  inserts G½, G¾
  PVC glue-in connection,
  soldering connection 18, 22 mm (Ms)
• Float: polysulfone
• Spring: stainless steel, 1.4310
• Toothed ring: stainless steel, 1.4310
• Flat seal:
  for model VKP-1.../3... NBR
  for model VKP-2... Klinger Oil it.
• Max. temperature:
  120°C
  85°C (with contact)
  60°C (with PVC connection)
• Max. pressure: 16 bar
• Accuracy:
  VKP-1...: ± 5% of the full scale
  VKP-2...: ± 5% of the full scale
  VKP-3...: ± 7% of the full scale
• Installation position: horizontal or vertical

Option (for VKP-1 and VKP-2 only)

• Contact components: 1 N/O or N/C contact, bistable
• Electr. connection: connector DIN 43 650
• Switch capacity:
  max. 40 W/VA,
  max. 230 VAC/DC,
  max. 2 A
  (No single value is allowed to be exceede

Download Datasheet: Kobold VKP Viscosity Compensated Flowmeter / Switch

Reference: kobold.com