---
product_id: 53221437
title: "100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water"
brand: "wiltec"
price: "4941.72 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Wil Tec"
url: https://www.desertcart.tn/products/53221437-100l-pressure-tank-vessel-expansion-for-domestic-waterworks-pump-epdm
store_origin: TN
region: Tunisia
---

# 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:** 4941.72 DT
**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?** 4941.72 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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

- • **Massive 100L Capacity:** Ensures steady water pressure and reduces pump cycling for longer system life.
- • **Premium EPDM Membrane:** Safe for drinking water and resistant to heat and aging, guaranteeing durability.
- • **Versatile Installation:** Horizontal design with wall-mount plate and universal 1" pump connector fits most domestic water systems.
- • **User-Friendly Maintenance:** Quick membrane replacement and integrated Schrader valve for easy pressure adjustments.
- • **Robust 5.4 Bar Pressure Rating:** Handles high-pressure demands with certified tightness testing for reliability.

## Overview

This 100L pressure expansion vessel, crafted from quality steel and equipped with a heat-resistant EPDM membrane, is designed for domestic waterworks, solar, and garden pump systems. Rated for up to 5.4 bar pressure and featuring a user-friendly Schrader valve, it ensures consistent water pressure, easy maintenance, and safe contact with drinking water. Its horizontal design and mounting plate make installation seamless, while the replaceable membrane extends the vessel's lifespan.

## 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 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 160,117 in DIY & Tools ( See Top 100 in DIY & Tools ) 295 in Water Pumps & Accessories |
| Colour | 100 L |
| Customer Reviews | 4.3 4.3 out of 5 stars (3,651) |
| Date First Available | 9 Nov. 2010 |
| Item Weight | 9.7 kg |
| Item model number | 50645 |
| Manufacturer | Wiltec |
| Material | Steel, EPDM |
| Part Number | 50645 |
| Power Source | Solar Powered |
| Product Dimensions | 48.7 x 46.6 x 66.1 cm; 9.7 kg |
| Size | 100 L |
| Style | Horizontal |
| 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/41-+bgoxOVL.jpg)
![100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water - Image 2](https://m.media-amazon.com/images/I/410E4GhXkOL.jpg)
![100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water - Image 3](https://m.media-amazon.com/images/I/41kFoiwrlUL.jpg)
![100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water - Image 4](https://m.media-amazon.com/images/I/41lqLxe01sL.jpg)
![100L Pressure Tank Vessel Expansion for Domestic Waterworks Pump EPDM-Membrane Drinking Water - Image 5](https://m.media-amazon.com/images/I/51Icy6PU-bL.jpg)

## 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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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-26*