For real-time natural gas analysis of high-volume lines, you need a sample probe that can deliver a continuous supply of representative samples to your analyzer at the appropriate pressure. The Welker Original IRD Probe Regulator mounts directly to a hot tap or mating flange on your depressurized pipeline and has a fixed insertion length to extract the most representative sample from the center one-third of the source stream.
Natural Gas Sampling: Upstream of an analyzer as a standalone pressure control device or part of a conditioning system; natural gas pipelines that can be depressurized for probe installation or removal
Avoid the pipe walls and get to the heart of the source stream. Extending into the center one-third of your pipeline, the IRD captures samples representative of the flowing stream and leaves free liquids behind.
When inserted into the center one-third of your pipeline, the tip of the IRD regulates your sample under flowing conditions. In-pipeline pressure regulation and the low internal volume of the IRD reduce lag time and get your sample to the analyzer faster. With less time in the sample line, ambient conditions don’t have the opportunity to negatively affect your sample.
NPT or flanged? With a variety of sizes and ratings from 150 up to 2500 ANSI available, Welker can make the connection.
Thermal fins add surface area to the probe tip, allowing pipeline gas to transfer some of its thermal energy to the regulated sample. This additional heat mitigates the cooling caused by pressure drops (Joule-Thomson effect) and helps prevent the sample from condensing.
Analytical devices require samples to be injected at a controlled pressure considerably lower than pipeline pressure. Capable of precise settings at low output pressures, diaphragm-operated IRDs keep your analysis going and protect your sensitive equipment from costly damage and downtime caused by high or fluctuating sample pressure.
Add the Welker Spring Range Kit to your IRD-4SS purchase, and you’ll further increase its functionality. With a set of three springs to choose from, you can easily change the pressure control range of the IRD-4SS for a new application.
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Materials of Construction | 316/316L Stainless Steel, PTFE, and Viton® |
Others Available | |
Connections | Outlet: 1/4" FNPT |
Pipeline: 1/2", 3/4", 1", or 2" MNPT | |
Output Range | IRD-4: 0-25 psig, 0-50 psig, 20-100 psig, 75-200 psig IRD-6:,/b> 250-1500 psig |
Insertion Length | 2.2" Standard for 2" and 3" Pipe 3.6" Standard for 4" and 6" Pipe 5.9" Standard for 8", 10", and 12" Pipe Others Available |
3.6" Standard for 4" and 6" Pipe |
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5.9" Standard for 8", 10", and 12" Pipe | |
Others Available | |
Flow Coefficient (Cv) | IRD-1, IRD-2, and IRD-6: 0.092 IRD-4: 0.138 |
Operation | IRD-1 and IRD-4: Diaphragm-Operated IRD-1, IRD-2, and IRD-6: Piston-Operated |
Operating Pressure | IRD-1, IRD-2, and IRD-6: 5000 psig @ -20 °F to 100 °F IRD-4: 3600 psig @ -20 °F to 100 °F |
Options | Extreme Service Tip High-Flow Insulation Blanket Pre-Set Regulator Pre-Set Relief Valve Pressure Gauge Relief Valve CE Compliance CRN Certification |