Wessels has developed an excellent reputation for delivering high quality products for hot or chilled water HVAC systems. Every part that goes into our products is tagged and is traceable throughout the life of the product. To ensure international standards of quality, Wessels is ASME certified and meets the Japanese Inspection Standard (JIS). As a result, we’re recognized for delivering a wide breadth of high quality pressure vessels that are cost competitive and delivered on a timely basis.

Our ability to offer high quality products and deliver outstanding customer service has allowed Wessels to foster long-term relationships with many of our customers. Fast turn-around, personalized customer service, and large factory capabilities make us uniquely suited to handle local and worldwide sales, including distribution in Asia and the Middle East.

Wessels is owned by parent company NM Group Global LLC (NMGG). NM Group Global is a holding company for a growing group of companies which share several common traits; namely, engineered metal products or equipment with value added in design, manufacturing and marketing.

Wessels - Bladder Expansion Tanks - Brochure