Certified
ISO 9001:2015
Innovation
90+ U.S. Patents
Worldwide
Global Support
Experts
Since 1954
Certified
ISO 9001:2015
Innovation
90+ U.S. Patents
Worldwide
Global Support
Experts
Since 1954
Compact pressure control for safer pneumatic instrumentation performance
The Welker ISD Instrument Regulator is a compact, spring-loaded pressure regulator designed to reduce high-pressure filtered gas or instrument air to a lower outlet pressure for downstream pneumatic instruments. Built for small enclosures, panel mounting, and conditioning systems, the ISD helps protect sensitive equipment from pressure-related damage and operating interruptions. With multiple flow coefficients, pressure control ranges, port configuration options, 316/316L stainless steel body and trim, and tool-free maintenance, the ISD provides dependable instrument gas pressure control in natural gas, oil, and petrochemical applications.
Pneumatic Instrument Pressure Control
Upstream of sensitive pneumatic instruments as a standalone pressure control device or part of an instrument gas conditioning system.
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Compact Design
Fits small enclosures and panel-mounted instrumentation systems.
Multiple Flow Coefficients and Pressure Control Ranges
Adapts to different downstream equipment pressure and flow requirements.
316/316L Stainless Steel Body and Trim
Provides corrosion resistance for natural gas, oil, and petrochemical service.
Knurled Spring Housing
Improves grip during maintenance and adjustment.
Port Configuration Options
Allows accessory arrangements to be selected based on installation needs.
