Compression Fittings

Full line of Hy-lok fittings, fully stocked at Southwest Process Control.

Southwest Process Controls carries the full line of Hy-Lok compression fittings. Hy-Lok compression union fittings consistently provides leak-free connections for a variety of industries. From tube fittings to face seal fittings, Southwest Process Controls is equipped to meet your specific application needs.

Tube Fittings

Tube Fittings

At Southwest Process Control, we have tube fittings to meet any need. As the singular distributor of Hy-Lok tube fitting products, we guarantee leak-free performance for industries including oil and gas, pulp and paper, chemical processing and power generation.

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High Pressure Fittings

High Pressure Fittings

Southwest Process Control is the singular distributor of Hy-Lok fittings in southwest Texas. This means that any high-pressure fitting purchased from Southwest Process Control has the Hy-Lok guaranteed to perform, leak free.

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Instrumentation and Industrial Pipe Fittings / Flanges

The full line of Hy-Lok instrumentation and industrial pipe fittings is available at Southwest Process Control.

Instrumentation Pipe Fittings

Instrumentation Pipe Fittings

Hy-Lok precision pipe fittings are designed for instrumentation and process control. Hy-Lok provides a wide assortment of thread combinations and sizes for easy transition from one thread design to another or to accommodate increases and reductions in thread sizes.
Specifications include:

  • Many different connections and configurations.
  • Standard materials are S316, brass, and carbon steel.
  • Size ranges from 1/8” thru 2” NPT.
  • Precision thread construction to ensure leak-free and reliable systems.
  • Working pressure calculated in accordance with power piping code ANSI B31.1 and refinery piping code ANSI B31.3.

Industrial Pipe Fittings / Flanges

We also stock a full line of high quality industrial pipe fittings in threaded, flanged, and weld ended configurations. These fittings are available in stainless steel, steel, brass, and various other materials.

Face Seal Fittings

Southwest Process Control carries ZCR and ZCO Face Seal Fittings designed to meet every one of your fitting needs.

ZCR Face Seal Fittings

ZCR Face Seal Fittings

The ZCR Face Seal Fitting is designed to be completely intermixable with other manufacturers of high purity face seal fittings and valves. The design of two sealing beads compressing a metal gasket is the standard for the semiconductor industry. Highly polished surface finishes of  Hy-Lok ZCR fittings equals no leaks in high-vacuum and positive-pressure applications. VAR and VIM-VAR raw materials are purchased with tightly controlled sulphur content for welding repeatability.

  • Metal gasket seal meets or exceeds specifications of the semiconductor industry.
  • Hy-Lok ZCR fittings have been tested  to hold and exceed a leak rate of 10-9 torr.
  • Tube connections to 1” O.D.

ZCO Face Seal Fittings

Hy-Lok ZCO face seal fittings are available in sizes 1/4″ through 1” with a variety of configurations. ZCO fittings are used for zero clearance applications from vacuum to high pressure and temperatures up to 550° F. Standard material is 316 stainless steel, 316L for weldable glands with other materials available upon request.

  • Provide zero clearance.
  • Various o-ring materials available.
  • Provides multiple remakes.
  • Representing
  • anderson
  • conca
  • neon
  • gontz
  • Connected By
  • hy-lok

1-800-525-6417 | 713-643-5890