ASME Code Constructed National Board Registered storage tank

CEMLINE® tanks are designed and constructed in accordance with the latest A.S.M.E. Code regulations using pressure vessel quality plate and certified welders. An A.S.M.E. code certificate is provided and all vessels are registered with the National Board of Boiler and Pressure Vessel Inspectors. Vessels are normally built for 125 psig maximum working pressure but can be furnished for pressures as low as 15 psig and as high as 500 psig.


CEMLINE has held the original patent for STONESTEEL hydraulic cement lining since 1936. This proven design prevents rust and corrosion common to metal tanks. The STONESTEEL lining is applied as a continuous arch against the metal wall and has the same thermal coefficient of expansion as the steel tank shell. This is an advantage in that even extreme and rapid temperature changes have no ill effect on the STONESTEEL lining. Tanks 36" and larger in diameter are provided with wire mesh welded to inside tank walls to insure a permanent bonding of the lining to tank.

Stainless Steel Threaded Connections

CEMLINE SSH water heaters are constructed with solid 316-L stainless steel openings. This grade of stainless steel is chosen for its proven long life and corrosion resistance.

3" Fiberglass insulation

CEMLINE heaters are furnished with 3" thick Fiberglass insulation. This high quality insulation conforms to the latest ASHRAE standards for commercial water heaters, and has proven to be an extremely reliable means of minimizing heat loss.

20 Gauge Steel Jacket with Hammertone Enamel Finish

CEMLINE packaged units are neatly and attractively covered with a 20 gauge steel jacket over the Fiberglass insulation. The jacket protects the insulation, and is professionally painted with superior quality enamel to allow the added importance of an easy to maintain surface.

Structural I-beam Support Skid Base

CEMLINE heaters are mounted on structural I-Beam support skids designed as a permanent base. This skid is pre-engineered to allow correct support for the heater.

ASME Relief Valve-Pressure and Temperature

CEMLINE packages are provided with ASME pressure-temperature relief valves sized to relieve the total BTU input of the heating coils.

Thermometer and Water Pressure Gauge

Cemline electric heaters are furnished with thermometer to monitor tank temperature and dial pressure gauge to monitor pressure within the vessel.

Control Circuit System

Cemline electric water heater control circuits are equipped with a line voltage to 120 volt isolation transformer for 120 volt control. This transformer is fused on the primary side and fused and grounded on the secondary side in accordance with the A.S.M.E Code, National Electric Code and Underwriters’ Laboratories.

High Limit Thermostats

Cemline electric water heaters are furnished with both adjustable automatic reset type high limit and a manual reset high limit thermostat with a manual reset button. These thermostats open the control circuit if the temperature of the tank exceeds the set point.