Instrumentation Tube Fittings, Valves & Tubing: US-Serving Manufacturer

Crestflo is a US-serving manufacturer of instrumentation tube fittings, valves, regulators, accessories and tubing for pressurized fluid and gas systems, produced in stainless and high-nickel/CRA alloys and engineered for US drop-in replacement. Every family is built to the applicable industry standard, marked with a heat number for full traceability, and available on an RFQ basis, ready stock for standard items · made-to-order for specials · 6–8 week delivery. We make instrumentation-grade flow components: needle and ball valves for gauges and analyzers (not plumbing or carburetor parts), compression ferrules for instrument tubing (not electrical or wire ferrules), and valve manifolds (not exhaust or PEX manifolds). We Engineer Confidence.

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Reviewed by the Crestflo Engineering Team

Also Known As: Instrument Fittings, Compression Fittings & Fluid System Components

Buyers and specifiers describe these parts in several ways, and Crestflo supplies them under each name. Our fittings are also specified as instrument tube fittings, compression tube fittings, double-ferrule (twin-ferrule) and single-ferrule fittings, and fluid system components. The valve line is called instrumentation valves, instrument valves, or flow-control components. As a category, buyers search for a tube fittings manufacturer, an instrumentation valves manufacturer, or simply an instrumentation fittings supplier in the USA, all of which describe Crestflo, the US locale of Crestflo Instrumentation Technologies.

Instrumentation Fittings & Valves Specifications at a Glance

Values per the applicable standard; customizable to requirement.

Drop-In Replacement vs the Major Brands: Lead Time, MOQ & Alloy Depth

For US technical buyers weighing a manufacturer of instrumentation fittings and valves, the decisive differences are lead time, order flexibility and alloy range. Our parts interchange dimensionally with the incumbent brands and are performance-qualified, a comparison distributors and OEMs can extract at a glance.

Swagelok, Parker & Hy-Lok Cross-Reference

Replacing Swagelok®, Parker®, Hy-Lok®, Hoke® or Fitok® components? Our tube fittings interchange dimensionally and are performance-qualified to ASTM F1387; instrumentation valves qualify to ASME B16.34 and the relevant API standards. Swagelok, Parker, Hy-Lok, Hoke and Fitok are trademarks of their respective owners; Crestflo is not affiliated with, authorized by, or endorsed by them, and uses these names only to describe dimensional interchange. We do not publish a competitor part-number table, instead, request your Swagelok® or Parker® cross-reference from our engineering team, or explore the interchange narrative and the Swagelok cross-reference, Parker A-LOK cross-reference and Hy-Lok cross-reference pages.

Certifications, Standards & Traceability

Crestflo is ISO 9001 / 14001 / 45001 & PED certified, and manufactures to the standard approvals applicable to each product type. Certificates are held on file and available through our quality documentation; content pages state conformance rather than certificate numbers.

Every part carries a heat/lot number for full traceability. Testing covers hydraulic proof, burst and impulse, pneumatic, flexure and rotary-flex fatigue, vibration, thermal cycling, pull-out and vacuum, with PMI and 100% seat & shell leak testing on manifolds. NDT is performed in-house; destructive testing is outsourced to ISO/IEC 17025-accredited laboratories, and third-party inspection is available on request. See traceability & material test certificates, ASTM F1387, NACE MR0175, EN 10204 MTC and US origin & TAA compliance. Datasheets and CAD models are available to customers on request.

Instrumentation Product Families: Tube Fittings, Valves, Regulators, Accessories & Tubing

Crestflo manufactures ten instrumentation product families in stainless and high-nickel/CRA alloys, each linking to its full hub.

Materials: 316L Stainless to Inconel, Hastelloy, Duplex & Titanium

Same part, your alloy, from 316L to Hastelloy C-276. Each grade is educated in depth on its own page, which links to the instrumentation forms Crestflo supplies.

See the full materials index for compositions, PREN and grade comparisons.

Industries We Serve

Crestflo instrumentation fittings and valves serve oil & gas (upstream, midstream, downstream), offshore and subsea, petrochemical, semiconductor, hydrogen, LNG and cryogenic, power and nuclear, pharmaceutical and biotech, aerospace and defense and data centers. Service-condition guidance lives on each industry page.

How to Buy: RFQ, Samples, Distributor & OEM Programs

Crestflo works on an RFQ basis, no online pricing or cart. Distributors can become a distributor or join the master distributor program; equipment manufacturers and OEMs can run private-label and made-to-print programs; plant, MRO and EPC buyers can request a quote or request a free sample. Review the how-to-buy process or download the catalog and line card.

US Coverage

We serve customers across the United States, from the Texas Gulf Coast to the Northeast, on a made-to-order and served-area basis, with 6–8 week delivery. Houston, TX is our US sales-contact city. See US locations, Texas and Houston, TX.

Why Crestflo

Crestflo is the instrumentation division of a Government-of-India-recognized export house with four decades of manufacturing and export experience, including a Middle-East delivery track record. That heritage backs a new, focused US-serving brand built around five buyer advantages.

More at why Crestflo and our quality program. Ready to move? Request a quote, request a sample, or contact our engineering team.

Frequently Asked Questions

Related Pages

• All instrumentation products
• Tube fittings · instrumentation valves · tubing
• Materials index, 316/316L to Hastelloy C-276
• Cross-reference & interchange
• Standards · Quality & traceability
• Why Crestflo · Request a quote · Contact