Rubber glands

In situ seals (rubber lip seals)

In situ gaskets are rubber lip seals used to protect and seal connections between a pipe and a tank. They are sometimes called inlet gaskets or flange inlet gaskets. The main purpose of these glands is to prevent the penetration of liquids inside and outside the tank:

• Prevents exfiltration of contaminants from inside the well into groundwater, which could cause environmental pollution
• Prevents infiltration of groundwater inside, ensuring the good technical condition of the installed system

The production of rubber lip seals at Gumet began with the popularization in Germany and Poland of the rotomoulding (rotational molding) method for manufacturing tanks with thin and smooth walls (6–12 mm) made of polyethylene.

Rotomoulding (also known as rotoforming or rotational molding) is a polymer processing method that enables the production of hollow, seamless, and joint-free shell elements in a single technological operation.

In-situ produced by Gumet in situ are used for:

• Water meter wells
• Sewer wells
• Domestic sewage treatment plants
• Rainwater collection tanks
• Sewage pumping stations
• Telecommunication and power wells
• Other tanks and casings with smooth (non-ribbed) walls, 6–12 mm thick

Materials used in the production of in situ seals are usually rubbers resistant to long-term exposure to atmospheric conditions. For special applications, material versions resistant to greases, fats, and oils are available.

We produce in-situ gaskets for smooth pipes with external diameters of
Ø 32 – 40 – 50 – 63 – 75 – 90 – 110 –  125 –  160 – 200 – 250 – 315 mm.

Gumet is able to produce seals according to supplied documentation on request.