Sulfur sealing devices for Sulfur Recovery Units (SxSeal® 1000 and 2000): Historically, the oil and gas industry has used two types of devices to achieve a vapor seal in sulfur rundown lines. The first type is an in-ground sealing device that is commonly referred to as a sulfur seal leg. This traditional device has been utilized in SRU’s for over 50 years. The second type is an above-ground sulfur sealing unit. During normal operation, liquid sulfur flows into the seal leg via a rundown. Once inside the device, sulfur flows downward through the inlet piping to the bottom of the leg, and then upward through the annular outlet piping to the sulfur outlet. Similar to a P-trap, liquid sulfur in the bottom of the seal leg establishes a vapor seal, preventing H2S and SO2 vapor from passing into the sulfur pit or collection vessel. SxSeal® 1000 and SxSeal® 2000 are two perfect examples of above-ground devices.

SxView™ Sulfur Sight Port: For many years, refineries and gas plants have employed methods for viewing liquid sulfur flow through their rundown lines, including look boxes and various sight glass devices. Standard look box designs require the operator to open a hatch door to view the liquid sulfur running through the piping. This activity potentially exposes the operator to H2S vapor and/or liquid sulfur spray. To limit operator exposure risks, many attempts at closed sulfur viewing devices using sight glass ports have been introduced. The common issue with those devices, however, is fogging of the sight glass which hinders visibility of the liquid sulfur flow. Addressing issues with current technology, CSI has partnered with oil and gas industry leaders to develop a safe, reliable sulfur flow indication device. CSI’s patent-pending SxView™ design ensures consistent, safe visual confirmation of liquid sulfur flow. Moreover, the SxView™ is backed by CSI’s engineering expertise, expansive production capacity, and exemplary customer service. As such, CSI’s SxView™ delivers the technical and commercial value you’ve come to expect from CSI for over 50 years.