Tubing

RGL supplies standard sizes of seamless and welded stainless steel instrumentation tubing in the four most popular austenitic grades — 304, 304L, 316, and 316L — ranging from 1/4″ to 1/2″ outside diameter, in straight lengths and coils where applicable. Material is available in annealed and pickled, bright annealed, mill finish, and polished conditions. These grades are trusted across a wide range of industries for their excellent corrosion resistance and machinability.

304 / 304L Stainless Instrumentation Tubing The most versatile and widely used austenitic stainless steels, Types 304 and 304L offer excellent corrosion resistance across a broad range of environments, along with strong machinability and weldability, with or without filler metal.

• Welded — OD: 1/4″–1/2″ | Wall: .035″–.065″ | Specs: ASTM A269, ASTM A249, ASME SA249
• Seamless — OD: 1/4″–1/2″ | Wall: .035″–.065″ | Specs: ASTM A269, ASTM A213, ASME SA213

316 / 316L Stainless Instrumentation Tubing Similar to 304/304L but enhanced with molybdenum, these grades deliver superior resistance to pitting and crevice corrosion in chloride environments, along with excellent toughness — even at cryogenic temperatures — and strong weldability.

• Welded — OD: 1/4″–1/2″ | Wall: .035″–.065″ | Specs: ASTM A269, ASTM A249, ASME SA249
• Seamless — OD: 1/4″–1/2″ | Wall: .035″–.065″ | Specs: ASTM A269, ASTM A213, ASME SA213

Special Alloy Tubing: Nickel & Titanium For demanding applications in aerospace, chemical processing, biotechnology, oil & gas, food processing, fertilizers, medical devices, and waste treatment, RGL also supplies nickel and titanium alloy tubing.

Nickel Tubing — Seamless nickel tubing for aerospace and commercial use, offering high strength and excellent heat and temperature resistance. Available in Alloy 20, 200, C-276, 400, 600, 625, 718, and HX.

CP Titanium Tubing — Commercially pure titanium tubing used primarily in aerospace ducting, as well as power generation, medical, and chemical processing applications. OD: 1/4″–7 1/2″ | Wall: .016″–.078″ | Specs: BMS 7-21, DMS 1878, ASTM B338, AMS 4942

Ti-3Al-2.5V Titanium Tubing — Designed for aircraft applications where strength and low weight are critical. More malleable than Ti-6Al-4V, it’s well suited for hydraulic tubing, is weldable, and can be strengthened through cold working and heat treatment. OD: 1/4″–1-1/2″ | Wall: .016″–.088″ | Specs: AMS 4943, AMS 4945, AMS 4944, DMS 2241, MMS 1205, AS5620, PWA 1260

Ti-6Al-4V Titanium Tubing — The aerospace industry’s benchmark titanium alloy for strength-critical, weight-sensitive applications. While more commonly used in sheet and plate form, it remains available in select tubular applications requiring maximum strength. OD: 1/2″–1-1/2″ | Wall: .020″–.028″ | Specs: AMS 4911, LMA-M8003

Fittings

Compression Type & Double Ferrule Tube Fittings

At RGL Export, we supply high-quality compression-type and double ferrule tube fittings engineered to deliver secure, leak-tight connections across a wide range of industrial applications. The double-ferrule design optimizes tube gripping and sealing, ensuring maximum reliability and performance even in demanding conditions. Our fittings are available in SS304L and SS316L, providing excellent corrosion resistance for the toughest operating environments.

Key Features & Specifications

• Fitting Types: Compression Type & Double Ferrule Tube Fittings
• Material: SS304L & SS316L
• Size Range: 1/8″ OD to 1″ OD | 3mm OD to 25mm OD
• End Connections: Male & Female NPT, BSPP, BSPT, ISO Tapered Pipe Ends

Applications

Our tube fittings are used extensively across critical industrial sectors, including process control systems, process and instrumentation, industrial equipment, aerospace parts and components, chemical processing, biotechnology, oil & gas, food processing, fertilizers, medical applications, and waste treatment.

Available Tube Fitting Types

Male Connector • Female Connector • Male Bulkhead Connector • Female Bulkhead Connector • Male Adapter • Reducing Union • Bulkhead Union • Bulkhead Union Reducing • Tube End Closure • Fitting End Closure • Male Elbow • Female Elbow • Bulkhead Elbow • Union Elbow • Union Cross • Union Tee • Reducing Union Tee • Male Run Tee • Male Branch Tee • Female Branch Tee • Reducer.

Valves

RGL Export supplies a comprehensive range of high-performance instrumentation valves engineered for critical flow control, isolation, and pressure management across demanding industrial applications. Manufactured to exacting standards in durable materials such as 316 stainless steel, our valves deliver reliable sealing, precise control, and long service life in pressures up to 6000 psi and temperatures ranging from -65°F to 464°F.

Check Valves Our poppet-type check valves feature threaded female ends with optional tube-end connections, rated up to 6000 psi for general instrument line use, plus a 3000 psi in-line variant purpose-built for sampling systems.

Needle Valves Available in hexagonal and square bar-stock designs, our needle valves offer adjustable, long-service performance with options for high-temperature graphite seals, panel-mountable configurations, and bleeding functions — rated to 6000 psi.

Ball Valves From miniature 316 SS ball valves with PEEK seats for space-constrained, high-pressure installations to full-size 6000 psi ball valves with blowout-proof design, our range ensures smooth, low-torque quarter-turn operation and dependable seal integrity. Compact mini valves and multi-outlet distribution valves round out the line for specialized routing needs.

Relief Valves Our 316 stainless steel proportional relief valves feature Viton O-rings and color-coded springs for easy set-pressure identification, covering a broad range of 50 to 6000 psi.

Block & Bleed Valves and Manifolds Designed to isolate and vent pressure instruments in a single compact unit, our block & bleed valves reduce component count and minimize leak points. We also supply 2, 3, and 5-valve threaded and flanged manifolds — including options compatible with 3051-style transmitters — featuring color-coded caps for quick function identification.

Solenoid Valves Controlling the flow of air, gas, water, oil, and steam across countless applications, our 2-way, 3-way, and 4-way solenoid valves range from simple on/off control to advanced flow management systems. Built with power management technology that accepts both AC and DC voltages, they set a high standard for reliability and energy efficiency.

For technical details or a quotation, please reach out to our team at sales@rgl-international.com — we’re ready to help you find the instrumentation solution for your exact application and project.