Welker SSM-1 Spot Sampling Manifold

The Welker SSM-1 Spot Sampling Manifold is designed to optimize natural gas spot sampling procedures by reducing liquid carryover and prevent the creation of liquids. Connect a Welker Sample Probe and a Welker Single Cavity Cylinder to the SSM-1 and you’ve got a complete spot sampling system.

Two styles of SSM-1 offer different levels of liquid separation upstream of the sample cylinder for a more representative spot sample. For free liquid removal, the standard SSM-1 with a Welker DP-15 Drip Pot is the answer. Acting as a sample line separator, the DP-15 collects free liquids from gaseous flow. Where created liquids are a primary concern, swap the DP-15 for a Welker Fluid Sentinel. The Fluid Sentinel combines a liquid separator and a sight glass to prevent free liquids from reaching the sample cylinder while allowing technicians to monitor the sample stream for present or created liquids.

Pressure and temperature changes that occur during repeated fill and empty cycles have the potential to distort your sample. The SSM-1’s pigtail keeps your sample representative by distancing the flow restriction from the sample cylinder. Pressure reduction during an empty cycle occurs at the pigtail’s valve, preventing the Joule-Thomson effect from cooling the cylinder and potentially condensing the sampled gas. When using an SSM-1 with Welker Fluid Sentinel, the technician can visually monitor the sample stream for created liquids and modify the spot sampling technique as necessary.