PST's new "E-Series" are the new replacements for the venerable PST low pressure cylinders. The "E-Series" tanks have an operating pressure of 3422 psi/230 bar. The length and diameter are the same as the older LP models (and, of course, the exclusive hot-dipped galvanized finish has not changed), but two pounds have been shaved from the tare weight. As a result, buoyancy will move closer to zero but will remain negative when empty-- much like the legendary PST 104s from years ago.

The LP 104 cylinder has been replaced by the E8-130: the new design allows the cylinders to be filled to 130 cf without the need for a "plus rating" for overfilling.

The Halcyon Manifold features a full length double barrel o-ring sealing post, and comes assembled with raised-rib rubber handwheels. The Halcyon manifold fits tanks with 3/4-14 thread and includes 3300psi pressure relief disks (PRD) required for use within the United States.

Thanks to a new casting utilized by both versions of the manifold, Halcyon's "H" logo is now sculpted into the body of each valve. All Halcyon manifolds are assembled with Viton o-rings and oxygen-compatible lubricants.

Highland Millwork's tank bands are life insurance for your investment in tanks and valves. Highland's approach to quality mirrors that of Halcyon: Highland has built its reputation on atypical quality, uniqueness, ruggedness and durability. All Highland bands are TIG fusion welded, passivated and polished for maximum corrosion resistance. Bands are tank and manifold-specific. If you don't know which bands to order, contact us.