---
product_id: 53221437
title: "100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water"
brand: "wiltec"
price: "132522 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Wil Tec"
url: https://www.desertcart.is/products/53221437-100l-pressure-tank-vessel-expansion-for-domestic-waterworks-pump-epdm
store_origin: IS
region: Iceland
---

# 100L capacity for ample water buffering Easily replaceable EPDM membrane 5.4 bar max pressure rating 100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water

**Brand:** wiltec
**Price:** 132522 kr
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water system with pressure-perfect precision!

## Quick Answers

- **What is this?** 100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water by wiltec
- **How much does it cost?** 132522 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/53221437-100l-pressure-tank-vessel-expansion-for-domestic-waterworks-pump-epdm)

## Best For

- wiltec enthusiasts

## Why This Product

- Trusted wiltec brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust 100L Capacity:** Generous volume to stabilize your domestic water pressure seamlessly.
- • **Premium EPDM Membrane:** Safe for drinking water with quick, hassle-free membrane replacement to maintain hygiene.
- • **Smart Pressure Control:** Integrated Schrader valve allows precise counter-pressure adjustments for optimal pump efficiency.
- • **Universal Compatibility:** Fits nearly all domestic waterworks, solar, and garden pump systems with a standard 1" connector.
- • **High-Pressure Resilience:** Engineered to withstand up to 5.4 bar, ensuring reliable performance under demanding conditions.

## Overview

The WilTec 100L Pressure Tank Vessel is a durable, steel-constructed expansion tank designed for domestic waterworks, solar, and garden pump systems. Featuring a high-quality, replaceable EPDM membrane safe for drinking water, it supports pressures up to 5.4 bar and includes an integrated Schrader valve for easy pressure regulation. Its horizontal design and wall-mount plate ensure versatile installation, making it a reliable upgrade for maintaining consistent water pressure and protecting your pump system.

## Description

Replacement 100-litre pressure vessel for use in sanitary cold/hot water systems, suitable for nearly all domestic waterworks, solar and pressure maintenance systems, and garden pumps. This pressure vessel (type 100L pressure vessel) will be delivered including the EPDM rubber membrane. The vessel is designed for a maximum pressure of 5.4 bar and will be delivered for a horizontal positioning, including a plate for attaching domestic waterworks and is suitable for wall mounting. The vessel is checked for tightness with up to 5.4 bar water pressure by the producer. It has a 32.89–33.25-mm (1″) pump connector. The pressure vessel additionally has an integrated valve (Schrader valve/car tyre valve) to regulate the counter-pressure in the space between tank and membrane. The bore diameter of the feet is 8 mm and the elongated holes on the plate for attaching the pump measure 10 mm. These vessels are made of quality-steel sheets and are welded according to UNI-EN standards and equipped with a heat and ageing resistant EPDM rubber membrane. The membrane can easily be exchanged. About the pre-charge in the pressurised vessel: The pre-charge pressure should be set approximately 0.1–0.2 bar lower than the switch-on pressure of the pump and has to be checked regularly. Any failure of observance may cause damage on the EPDM rubber diaphragm of the pressure vessel. A more accurate calculation results from the formula “switch-on pressure of the pump x 0.9.” Example: Switch-on pressure of the pressure switch of the domestic waterworks is set to 1.5 bar: 1.5 bar x 0.9 = 1.35 bar. This means that the pressure can be set from 1.3–1.4 bar. Important: The pressure of the vessel should only be inflated or deflated after the pressure to the water system has been released beforehand. Attention: It is necessary to have released the air and water pressure before opening of the pressure vessel!

Review: Vessel - Excellent price and good quality
Review: Pump for private water supply - Replaced a smaller model but working perfectly.

## Features

- Advantages of the expansion vessels
- Pressue vessels can be used for all types of water.
- The water only comes into contact with the membrane.
- Easily replace the membrane, EPDM is suitable for drinking water.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004VLEUPA |
| Best Sellers Rank | 59,757 in DIY & Tools ( See Top 100 in DIY & Tools ) 105 in Water Pumps & Accessories |
| Brand | WilTec |
| Colour | 100 L |
| Country of Origin | China |
| Customer Reviews | 4.3 out of 5 stars 3,681 Reviews |
| Global Trade Identification Number | 04250390813131 |
| Item Dimensions L x W x H | 70L x 45W x 47H centimetres |
| Item Weight | 9.7 Kilograms |
| Manufacturer | Wiltec |
| Material | Steel , EPDM |
| Model Number | 50645 |
| Power source | Solar Powered |
| Product Style | Horizontal |
| Product dimensions | 70L x 45W x 47H centimetres |
| Style | Horizontal |
| Unit Count | 1.0 count |
| Voltage | 12 Volts (DC) |

## Product Details

- **Brand:** WilTec
- **Colour:** 100 L
- **Global Trade Identification Number:** 04250390813131
- **Item weight:** 9.7 Kilograms
- **Manufacturer:** Wiltec
- **Material:** Steel, EPDM
- **Power source:** Solar Powered
- **Product dimensions:** 70L x 45W x 47H centimetres
- **Style:** Horizontal
- **Voltage:** 12 Volts (DC)

## Images

![100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water - Image 1](https://m.media-amazon.com/images/I/61Bn8aD3+eL.jpg)

## Available Options

This product comes in different **Color, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Vessel
*by C***L on 22 October 2025*

Excellent price and good quality

### ⭐⭐⭐⭐⭐ Pump for private water supply
*by A***R on 6 June 2025*

Replaced a smaller model but working perfectly.

### ⭐⭐⭐⭐⭐ Expansion tank
*by R***E on 28 June 2025*

Well made does the job

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.is/products/53221437-100l-pressure-tank-vessel-expansion-for-domestic-waterworks-pump-epdm](https://www.desertcart.is/products/53221437-100l-pressure-tank-vessel-expansion-for-domestic-waterworks-pump-epdm)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-15*