Monolithic Manholes  Manufacturers, Traders, Suppliers

We are committed to providing innovative fluid control solutions to global customers across various industries, including oil and gas, chemical, water treatment, pharmaceuticals, and food processing. With a team boasting extensive industry experience, we strive to deliver customized products and excellent technical support to our clients.
Whether it's standard valves or specialized custom products, FlowControl has earned customer trust through outstanding quality and reliability. Our commitment to excellence has positioned us as a trusted partner for fluid control solutions worldwide.

Olsen Technology has twenty years of manufacturing dished heads for tanks. Our products are mostly used in pharma and food industries. The company has established a standard quality assurance system to make sure every heads are of top quality. We believe that good tolerance control and surface protection are the key for the best quality.
Featured Products: Elliptical/Torispherical Head 3 meter with after-forming 1.5-2mm (over 2.9mm steel sheet applied based on the after-forming thickness)
Our main production facilities: 5000 T press machine, 3000 T press machine, 1600 T press machine and several spinning machines. Dished head under 3 meter are formed by pressing.
Main material we can supply: 1. ASME standard 304 316L carbon steel. 2. Chinese Standard GB materials. The Chinese materials are the easiest for us to find in the domestic. For other materials, please ask individually.
We make dished head based on millimeter and inner diameter. It would be of the best quality and the most convenient delivery time for us to provide if you can consider inner diameters.
For a factory visit, please contact our email for a tour.