# Tanks and pressure vessels

> Pressure tanks for water supply, expansion vessels for heating and solar systems, and mounting accessories. Help with sizing, delivery across Ukraine.

[Catalogue](https://watertrade.com.ua/en/catalogue.md) › [Tanks and pressure vessels](https://watertrade.com.ua/en/catalogue/baki-i-gidroakkumulatory.md)

Web page: https://watertrade.com.ua/en/catalogue/baki-i-gidroakkumulatory · Other languages: [UA](https://watertrade.com.ua/catalogue/baki-i-gidroakkumulatory.md), [RU](https://watertrade.com.ua/ru/catalogue/baki-i-gidroakkumulatory.md)

Diaphragm tanks come in two kinds, and they are not interchangeable:

- **[pressure tanks](https://watertrade.com.ua/en/catalogue/baki-i-gidroakkumulatory/gidroakkumulatory)** — for cold water supply: they keep the pipes pressurised and save the pump from frequent starts;
- **[expansion vessels](https://watertrade.com.ua/en/catalogue/baki-i-gidroakkumulatory/rassiritelnye-baki)** — for sealed heating and solar systems: they take up the water that expands as it heats.

A pressure tank diaphragm is made for drinking water and an expansion vessel diaphragm for hot heating fluid, so one cannot replace the other. Brackets and stands are in [accessories](https://watertrade.com.ua/en/catalogue/baki-i-gidroakkumulatory/komplektuusie-dla-gidroakkumulatorov); how to choose the volume is explained in [“How to choose a pressure tank”](https://watertrade.com.ua/en/articles/article/vybor-gidroakkumulyatora).

## Sections

- [Pressure tanks](https://watertrade.com.ua/en/catalogue/baki-i-gidroakkumulatory/gidroakkumulatory/products.md) — GWS pressure tanks from 0.16 to 500 L: vertical and horizontal, steel, stainless steel and composite. Help with sizing, Nova Poshta delivery across Ukraine.
- [Expansion tanks](https://watertrade.com.ua/en/catalogue/baki-i-gidroakkumulatory/rassiritelnye-baki/products.md) — GWS HeatWave and SolarWave expansion vessels for sealed heating systems and solar collectors. Help with sizing, Nova Poshta delivery across Ukraine.
- [Pressure tank accessories](https://watertrade.com.ua/en/catalogue/baki-i-gidroakkumulatory/komplektuusie-dla-gidroakkumulatorov/products.md) — Wall brackets for mounting tanks and stands for fitting a pump on a GWS pressure tank. Nova Poshta delivery across Ukraine.

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Watertrade · Phone: 067-421-96-27 · sale@watertrade.com.ua · Site map for language models: https://watertrade.com.ua/en/llms.txt