What Is a Plate Heat Exchanger Gasket? | New Roc PHE
What Is a Plate Heat Exchanger Gasket? A Buyer's Primer
If you maintain or buy spare parts for a plate heat exchanger, the gasket is the component you will deal with most often. So what is a plate heat exchanger gasket, exactly? In one line, it is the rubber seal that sits in the groove of every plate and keeps the two fluid circuits apart. Choose and fit it correctly and the unit runs dry and efficient. Get it wrong and you face leaks, cross-contamination and unplanned downtime.
What Does a Plate Heat Exchanger Gasket Do?
Every plate carries a rubber gasket around its edge and around the portholes. When the plate pack is clamped together, the gaskets press against the neighbouring plates and seal the channels between them. Because the gasket pattern alternates the flow, it also channels each fluid into the correct path, hot on one side and cold on the other. A gasket is therefore both the seal and the flow guide of the unit.
Types of Plate Heat Exchanger Gaskets: Clip-On vs Glued
Plate heat exchanger gaskets come in two fitting styles. Clip-on gaskets snap into the groove with small tabs and need no adhesive, and most modern units use this type. Glued gaskets are bonded into the groove and are common on older or simpler plates. They seal the same way. The difference shows at service time, when clip-on types are far quicker to strip and refit.
Plate Heat Exchanger Gasket Material: Your Options
The rubber compound sets the limits of heat and chemical resistance:
- EPDM: the general-purpose choice for water and steam at moderate temperatures.
- NBR: the workhorse for oily and hydrocarbon duties.
- Viton (FKM): for aggressive chemicals and higher-temperature service.
Exact temperature and chemical ratings differ between suppliers, so confirm the specific grade for your media rather than assuming a single figure 【具体数值按官网材质页,可改】.
How Is a Plate Heat Exchanger Gasket Made?
At our factory, uncured rubber sheet is cut and loaded into a heated press, where the plate's exact groove profile is moulded into the gasket under pressure. It is the profile, and not only the compound, that forms the seal. That is why each gasket is matched to the original plate geometry 【against 200+ in-house moulds】.
Getting the Right Gasket
Send us a photo of the plate nameplate and the old gasket, and we will identify the correct part and quote within 【24 hours】. If your unit is already leaking, our complete plate heat exchanger gasket replacement guide walks through the full procedure.
Email salesdep@newrocindustrial.com to get started.
