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Kayfun V4 - Smooth Steel Tank


Kayfun 5 - Replacement Centerpin

Kayfun V4

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Quick Overview

SvoëMesto Kayfun 4 


  • Improved gold plated CuBe spring for more conductivity and durability

  • "Unlocked delivery" - the Kayfun 4 now comes user friendly and easy to unscrew right of the box.

  • Improved manufacturer's seal


Availability: Out of stock


SvoëMesto Kayfun 4 


  • Liquid Control
  • Filling through the topcap
  • Airflow Control
  • Adjustable 510 connector
  • Exchangeable connectors
  • Any time access to the coil
  • Exchangeable tanks (glass, polycarbonate, steel)


Scope of delivery

The Kayfun V4 comes in a box, sealed by the manufacturer.

  • 1 x SvoëMesto Kayfun V4 with installed full steel tank
  • 1 x glass-tank-sleeve
  • 1 x polycarbonate tank
  • 1 x manual
  • 1 x exploded assembly drawing



Diameter:  22mm

Height without driptip: 

  • with steel tank: 57,5mm
  • with glass-tank: 57,9mm
  • with M-tank: 55,5mm



We at SvoëMesto attach great importance in using only the best and most appropriate materials. A list of the materials used for this product can be found below. If you have known allergies to one or more of these materials, we do not encourage the use of this product.

Component                                                      Material

Stainless Steel Components                         WNr. 1.4404 (X2CrNiMo17-12-2), AISI 316L, (V4A)              

Glass Tank                                                        Borosilicate glass

Insulators                                                         POM-C

O-rings                                                              NBR 70


Instructions for use

Liquid Control

The SvoëMesto Kayfun V4 comes with Liquid Control, which is capable of shutting off the juice flow from the tank to the evaporation chamber completely.

  1. To open the Liquid Control, hold SvoëMesto Kayfun V4 with your left hand at the connector [A3] and with your right hand at the airflow ring [A5]. Turn the airflow ring [A5] clockwise together with the upper part of the atomizer. Please stop this process as soon as you feel a resistance.
  2. To close the liquid control hold the atomizer as explained and turn the airflow ring [A5] counterclockwise.

It is recommended to close the liquid control, when the atomizer is not in use over a longer period of time, during transport and when storing it horizontally.


Changing tanks

Glass tank

  1. Unscrew the topcap from the tank.
  2. Unscrew the counternut from the chimney and remove it completely.
  3. Remove the upper and middle tank sleeve.
  4. Place the glass-tank-sleeve on top of the lower tank sleeve. Please pay attention that the o-ring is located in its groove. Place the upper steel-tank-sleeve [C32] on top of the glass-tank-sleeve [C30]. Please pay attention that the o-ring [C31] is located in its groove.
  5. Screw the counternut [C33] back onto the chimney and tighten it finger-tight.
  6. Screw the topcap [D] onto the tank [C].
  7. You have now assembled the SvoëMesto Kayfun V4 with a glasstank sleeve.



  1. Unscrew the topcap from the tank.
  2. Unscrew the counternut from the chimney and remove it completely.
  3. Remove the upper and middle tank sleeve, then unscrew the lower steel-tank-sleeve and remove it completely.
  4. Screw the M-Tank onto the evaporation chamber.
  5. Screw the topcap onto the tank.
  6. You have now assembled the SvoëMesto Kayfun V4 with an M-tank


Filling the tank

To fill the tank the SvoëMesto Kayfun V4 has to be assembled completely including a coil and wick.

  1. Close the liquid control as explained above.
  2. Now loosen the top nut and remove it from the top cap.
  3. Fill the tank with e-liquid at the sides of the chimney. Don’t pour e-liquid into the chimney. The tank is not meant to be filled further than the lower edge of the threading for the top nut.
  4. Seal the tank with the top nut.
  5. Open the liquid control.


Airflow control

  1. The SvoëMesto Kayfun V4 comes with an airflow control, which enables you to adapt the draw to your liking.
  2. Remove the atomizer from your APV or mod.
  3. Remove the screw at the 510 connector.
  4. Insert a flathead screwdriver into the hole at the 510 connector until you hit the airflow control screw, then raise the mouthpiece of the atomizer on your lips.
  5. For a stiffer draw, turn the screwdriver counterclockwise.
  6. For a looser draw turn the screwdriver clockwise.
  7. After you’ve adjusted the draw to your liking, screw 510 plus contact back in.


The manufacturer’s warranty is one year on all stainless steel parts. Excluded from warranty are all plastic components such as tanks and insulators, glass tanks and o-rings.


With the SvoëMesto Kayfun 4, please use original SvoëMesto accessories only. The manufacturer accepts no liability for any third-party accessories or issues which may have been caused or exacerbated by their use.

Additional Information

Price $144.95
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