AMTROL® ST-12

Description

Thermal expansion occurs as domestic water is heated. Left unchecked, the resulting pressure increase can cause relief valve discharge and other potentially hazardous conditions. Therm-X-Trol expansion tanks absorb this expanded water, keeping water pressure at a safe level. Amtrol invented the thermal expansion tank to control pressure build-up in closed, potable water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard.

AMTROL® Therm-X-Trol Thermal Expansion Tank, Series: ST, 4.4 gal, 3/4 in, MNPT, Steel, Urethane Topcoat, 150 psi Working, 50 psi Pre-Charge, 200 deg F, 15 in H x 11 in Dia

Features

• Antimicrobial liner neutralizes bacteria on contact
• Turbulator water diffuser
• Deep drawn steel domes for 2X the strength of other tanks
• Thickest diaphragm for extra long life
• Hoop and groove design for added reliability
• Accepts expanded water as system temperature rises and returns hot water to system when demand occurs
• Multiple units can be installed to accommodate larger systems
• Stainless steel system connection
• Heavy-duty butyl NSF/ANSI 61 diaphragm
• Antimicrobial liner protection
• Projection welded air valve
• InSight indicator cap
• 0.73 maximum accept factor
• Non-ASME tank
• Made in USA

Specifications

Documentation