In the beginning was our drain cock. Origin and basis of all Karcoma fittings. Paving the way for a product group that we know better than most in the industry. For decades we have consistently developed, varied and optimised. Permanent and intensive exchange with our customers and users. Always on the ball when it comes to new market requirements, possible applications or fuels and consumables. Today, our product range comprises more than 200 different versions, from classic spare valves for motorcycles to drain and fuel valves for a wide variety of vehicles and motor vehicles. Our valves are typically used on all types of fuel, oil and cooling water tanks.

We are specialized in the following 3 fields: