Link-Seal, a brand of modular seal, is one of the most innovative and useful products for pipe systems in years. They are very easy to install (just connect links and tighten bolts), but notoriously difficult to buy. This difficulty comes from the Link-Seal sizing system and the nature of the product. The modular seal system requires accurate specs on a few different elements.
These include penetration size, pipe size, wall opening type and pipe material. All of this needs to be taken into account when purchasing seals. Let’s break down what you’ll need to know before you place an order. The easiest way to do this is by following along in this online Link-Seal sizing chart (located here).
1.Type of Pipe
Before you speak to a salesperson, you’ll need to know what type of pipe you will be sealing around. In the Link-Seal sizing chart you’ll notice there are different seal requirements depending on the pipe material. These could range from PVC water pipe to copper tubing.
2. Pipe Size
Next, figure out what your pipe size is. For best accuracy, measure the actual O.D. of the pipe you’re using. This is essential for selecting the correct size Link-Seal.
3.Type of Wall Opening
Link-Seal sets out three types of wall openings, each with different size recommendations. These wall opening types are CS Non-Metallic Sleeve, WS Steel Sleeve, and Cast or Core Bit Drilled Hole. If you are using a core drilled hole you will need to know the hole I.D. Because Link-Seal work between the pipe and sleeve or hole, the space in between these two elements is very important in finding the right seal size.
4. Number of Penetrations to Seal
Using the three factors above you should be able to find the size (model) and number of links needed per seal. Link-Seal is unique in that it is sold per link and not per seal. That means you need to multiple the number of links you need for one seal by the number of similar penetrations to seal. This is where a lot of buyers get confused.
5. Hardware Material
Link-Seal comes in two general hardware materials: carbon steel and stainless steel. As you can imagine, stainless steel is a more expensive option, but it also will stand up to more water exposure, etc. Usually our sales team recommends stainless steel if you are working with an outdoors penetration or if the penetration will be exposed to liquids. For applications where these resistances are not an issue carbon steel should work fine.
Once you have all this information together you should feel confident in the type, size, and number of links you need to complete your job. Have these specs written down before you speak to a salesperson. It’s always easiest if customers have their information readily available.
If you’re ready to buy, check out our Link-Seal page and get a quote on your modular seal needs today.
