Solve tricky plumbing applications with collapsible fittings.
DEKS ValueFlex range of flexible couplings and fittings are manufactured using EPVC and stainless-steel clamp bands. They are designed to perform, seal, and offer flexibility when connecting pipes together.
DEKS manufactures these couplings and fittings on a global scale and has been doing so for over 30 years. We offer peace of mind and use only materials that ensure longevity.
Our pipe couplings will last for many years and have stood the test of time. The range is all socket, which is needed to compress the EPVC rubber by way of tightening the pre-fitted clamp band down to the required pipe diameter. As a rule, all connections will close between 5mm and 20mm depending on the diameter. Using a regular screwdriver hand tight, this should exert around 4 Nm² torque which is sufficient.
Ensuring you have the correct product is down to ensuring you have the correct measurements. All pipes have an outside diameter (OD) and this is what you work on. Often mistaken, a so-called 4" / 100mm pipe will have a different OD. The bore of the pipe is obviously important for ensuring flow rates on site, and this is often stated. However, different materials by manufacturing type means the wall thickness will be variable and increase the size required for a flexible coupling.
Selecting your best fit is best done by looking at what you want to do, i.e., connect a plastic-to-plastic pipe, then select the size range that best meets the range of the coupling. Please do not oversize or undersize. Always select the size that is not lower in range of the OD of the pipe or significantly higher. Flexible couplings are not suitable for being stretched, but excellent at being closed in diameter within the range stated.
What you need to know
Delivery charges
Delivery Access
Delivery times
Failed deliveries are chargeable
Damaged & missing Items
Do not install purchased items if you have a query with the product (e.g. if you need to query damage that occurred during transit).
Delivery
How much does delivery cost?
Delivery charges will vary and will depend on the manufacturer, weight, size and delivery location. The cost is automatically calculated when you add items to the shopping basket.
How long will I wait for my delivery?
The estimated delivery times are shown on each product page, we will email you each step of the way to keep you informed. The majority of products can be delivered within 3-5 working days.We will advise you if the delivery period is different from than stated on our website.
Do you offer next day delivery?
If a product is available with next day delivery, this will be displayed on the product page or in the basket. If you have a particular item that you require quicker than the guide on our website, please contact our sales team on 01858 455055 during office hours, they will be able to confirm whether a quicker delivery is possible.
What if my delivery doesn't turn up on time?
Please contact our sales office on 01858 455055 or email sales@roofgiant.com and we will advise on the status of your order.
Do you offer free delivery if I spend a substantial amount?
Not as standard, we show the delivery charges separate once you go to the checkout so it is clear what you are paying for the products and delivery costs. If you are ordering larger quantities please contact out sales team who will be able to confirm if this is possible.
Do you deliver on weekends?
Not as standard, our deliveries are made Monday to Friday. If you do need an urgent Saturday delivery please contact out sales team on 01858 455055 during office hours who will be able to confirm. This will incur a premium charge if possible.
Do you deliver to Northern Ireland/Guernsey/The Scottish Highlands/Isle of Wight?
Some suppliers/couriers will deliver to these areas but not all, please contact our sales team on 01858 455055 or email sales@roofgiant.com during office hours for confirmation. If we are able to deliver the product you require, additional transport costs will apply, we will be able to confirm this to you. These additional costs are based on the manufacturer, distributor or courier providing the shipping on our behalf.
Do you deliver to Republic of Ireland, Europe and Rest of World?
No, unfortunately we nor our suppliers can deliver outside of Great Britain (and Northern Ireland in some instances).
What if my delivery doesn't turn up on time?
Please contact our sales office on 01858 455055 or email sales@roofgiant.com and we will advise on the status of your order.
Returns Policy
Important: Please do not send goods back before speaking to our sales office.
📞 01858 455055 | ✉️ sales@roofgiant.com | 💬 Live chat
We recommend you take photos of the goods and packaging before returning, as this may be required for courier claims.
Your Right to Cancel
Returns After 14 Days
Refunds & Costs
Exclusions & Brand Policies
👉 For full details, including supplier-specific terms, please see our Returns & Refund Policy.
