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  • Válvula de escape Sikaplan® WT 4220 Exhaust Valve de Sika, accesorio de PE que evacúa el aire atrapado tras la membrana en depósitos de agua - Vetonek
  • Válvula de escape Sikaplan® WT 4220 Exhaust Valve de Sika, accesorio de PE que evacúa el aire atrapado tras la membrana en depósitos de agua - Vetonek

Sikaplan® WT 4220 Exhaust Valve

24,69 €
24,69 €

Delivery in 3–15 days

Tax included. Shipping calculated at checkout.
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Sikaplan® WT 4220 Exhaust Valve

Main benefits

Integrated one-way exhaust valve for reliable pressure and flow management in water tank liners. Reinforced waterproofing membrane based on polyethylene (FPO-PE) that guarantees durability and chemical resistance in water environments. Compact design that facilitates installation and reduces the risk of leaks.

Apps and features

  • One-way exhaust valve integrated into the Sikaplan® WT 4220 membrane to control internal pressure in water tanks.
  • Reinforced synthetic waterproofing membrane, based on FPO-PE, with high resistance to permeability and wear.
  • Material compatible with polyethylene coating systems and in contact with drinking water.
  • Protection against leaks and thermal expansion thanks to the reinforced structure of the membrane.
  • Simplified installation in tank lining processes, reducing time and costs.
  • Secure fixation of the integrated metal valve for long-lasting tightness.
  • Resistant to chemical attacks and weathering, suitable for applications in sanitation and water storage.

Frequently asked questions about Sika products (mortars, adhesives and sealants)

How do I know which size and quantity to buy?


Each product page includes the approximate yield or consumption (for example kg/m² or metres of bead per cartridge) in the "Technical specifications" section. Calculate the surface area or thickness of your project and multiply by that consumption to find out how many units you need. If in doubt, contact us with the measurements of your job.

Where can I find the complete technical data sheet (Product Data Sheet)?


The description of each product already includes the main technical data (strengths, setting times, application temperature, applicable standards, etc.), taken from the official Sika Spain Product Data Sheet. If you need the complete PDF data sheet or the safety data sheet (SDS), write to us and we will send it to you.

Do these products comply with European regulations (CE marking)?


Most Sika products carry the CE marking in accordance with the relevant European standard (for example EN 1504 for structural repair, EN 12004 for tile adhesives, EN 13888 for grouts or EN 15651 for sealants). The exact standard for each reference is detailed in the "Standards and certificates" section of its product page.

What protective equipment do I need to apply them?


It depends on the product: cement-based mortars and adhesives are usually irritating to skin and eyes (gloves, goggles and a mask are recommended), while polyurethane sealants and adhesives require good ventilation. Always check the safety section of the product page and its safety data sheet (SDS) before use.

How should I store these products and how long do they last unopened?


Shelf life and storage conditions (temperature, humidity, protection from light) vary depending on the type of product (cementitious, polyurethane, epoxy, etc.) and are stated on the packaging and in the data sheet of each reference. In general, it is advisable to store in a dry place, protected from frost and direct sunlight.

Can I return a Sika product if I haven't used it?


Yes, you have 14 calendar days from receipt to exercise your right of withdrawal, provided the product is in its original packaging and has not been opened. The cost of return shipping is borne by the customer. Contact us at info@vetonek.com or via WhatsApp on +34 629 571 735.

How long does my order take to arrive?

We ship to mainland Spain, the Balearic Islands, Portugal and the other European countries we serve (France, Belgium, the Netherlands, Germany, Italy, etc.). The estimated delivery time is 3 to 9 working days (no shipping to the Canary Islands, Ceuta or Melilla).