Wilkins WTTA ASME Thermal Expansion Tank, Lead-Free*

Name: Wilkins WTTA ASME Thermal Expansion Tank, Lead-Free*
Rating: 3.4 (5 reviews)

3.4(5 reviews)

Designed for installation on hot water systems to protect against thermal expansion. All WTTA tanks are ASME fixed bladder type for commercial and industrial applications. When system pressure increases due to thermal expansion, water enters the tank’s bladder which expands into the pre-charge air chamber, keeping system pressure below the relief valve setting. Conforms to all lead-free requirements and acceptable for use on drinking water systems.

Specification

The Water Thermal Expansion Tank shall be constructed in accordance with Section VIII of the ASME Boiler and PressureVessel Code. The outer shell shall be carbon steel. The bladder shall be FDA approved butyl rubber and prevent water from contact with shell interior. The assembly shall have a top NPT stainless steel system connection and a 0.301”-32 charging valve connection (standard tire valve) to facilitate the on-site charging of the tank to meet system requirements. The Water Thermal Expansion Tank shall be a ZURN WILKINS Model WTTA.

Technical specification