Kobold SWK Variable Area Flow Meter Low Volume

SWK-1 Variable Area Flow Switch

Kobold SWK Variable Area Switch Low Volume
Kobold SWK Variable Area Switch Low Volume

Measuring / switching range: 0.05 – 0.1 … 13 – 24 l/min water
Connection: G ½ female thread
Material: brass, stainless steel
pmax: 250 bar
tmax: 100°C
Accuracy: ±4 % of full scale
Reed contact

SWK-2 Variable Area Flow Switch

Kobold SWK Variable Area Switch Low Volume
SWK-2
Measuring / switching range:
0.05 – 0.1 … 13 – 24 l/min water
Connection: G ½ female thread
Material: brass, stainless steel
pmax: 250 bar
tmax: 100°C
Accuracy: ±4 % of full scale
Reed contact, pointer indicator

SWK-13 Variable Area Flow Switch

Kobold SWK Variable Area Switch Low Volume
SWK-13 Variable Area Switch Low Volume

Measuring / switching range:
0.2 – 0.8 …13 – 24 l/min water
Connection: G ½ female thread
Material: PVC
pmax: 6 bar
tmax: 60°C
Accuracy: ±4 % of full scale
Reed contact

KOBOLD flowmeters and monitors of model SWK operate on the known suspended float principle, however without using the generally known conical measuring tube. An orifice float moves in the direction of flow against the force of a spring in a cylindrical guide tube.

The float contains a permanent magnet which operates a floating sealed contact (reed contact) mounted on the outside. The instruments are small and can be mounted in any orientation. Model SWK flow switches are ideally suited for monitoring low flows.

 

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Features

Applications

  • Lubricant circuits
  • Paper-making machines
  • Machine tools
  • Glass-melting tanks
  • Cooling circuits
  • Welding machines
  • Induction furnaces
  • Pumps

Specifications

  • Housing:
    SWK-x1..: brass nickel plated, Ms 58
    SWK-x2..: stainless steel, 1.4301
    SWK-13..: PVC
  • Connections: G ½ female
  • Float:
    SWK-x1..: brass, Ms 58
    SWK-x2..: stainless steel, 1.4301
    SWK-13..: PVC
  • Magnets: ceramic
  • Compression spring: stainless steel 1.4310
  • Gaskets: none
  • Butt rings:
    SWK-x1..: brass, Ms 58
    SWK-x2..: stainless steel, 1.4301
    SWK-13..: PVC
  • Max. temperature:
    SWK-x1..,
    SWK-x2: 100°C
    SWK-13..: 60°C
  • Max. pressure:
    SWK-x1..,
    SWK-x2: 250 bar
    SWK-13..: 6 bar
  • Installation position: any position
  • Switch contact: bistable reed contact
    N/O contact with increasing flow rate
    max. 230 VAC/DC, max. 3 A
    max. 60 W/VA
  • Changeover contact: (SWK-xxxxU)
    max. 100 VAC/DC, max. 0.5 A,
    max. 5W/VA
  • Electr. connection: 1 m PVC cable
  • Switching hysteresis: 3 mm on scale (mean value)
  • Repeatability:
    ≤ 2.5% (contact)
    ± 4% of full scale (indicator)
  • Protection: IP 68 (contact), IP54 (indicator)
  • Ex range: ATEX-Zone 1 as »simple apparatus«

Download Datasheet: Kobold SWK Variable Area Switch Low Volume

Reference : http://www.kobold.com