Since 1937, Merit’s mission is to give its customers the ability to provide competitive and consistently high-quality materials and services to its customers. Each product Merit has added over the years has undergone extensive quality assurance examination to ensure that customer needs are met. Merit is proud to enhance its offering once more with stainlesssteel instrumentation tube fittings and valves which complement the company’s stainless-steel tubing line. This line of double-ferrule tube fittings is manufactured to be fully component-intermixable and totally interchangeable with brands such as Swagelok®, Parker A-LOK® and more. Tubing connections provide leak-proof torque-free seals. In addition, they eliminate potentially hazardous and expensive leaks in instrumentation, process, pneumatic, hydraulic, gas and other tubing systems. Merit’s tube fittings have four pieces: the nut, back ferrule, front ferrule and the body. There are several benefits of the double-ferrule design: Combines geometry and metallurgy. All action in the fitting is an axial movement along the tube instead of a rotary motion to create the joint. Axial movement prevents transmission of torque from a fitting to the tubing. The tubing does not weaken since there’s no initial strain in the tubing. Swaging action of the twin ferrules overcomes variations in tubing-wall thickness, hardness and dimensional tolerance. Self-aligning. Vibration-resistant. Reusable. In both vacuum and pressure systems, it can withstand heavy impulse. Does not require any special tools for assembly. Does not require disassembly and inspection of ferrule swaging at every makeup. When installed, the two ferrules grasp tightly around the tube and therefore the tube wall is not damaged. The tubing will Yield before the double-ferrule joint starts leaking as proven in multiple, comprehensive tests (pneumatic proof test, hydrostatic proof test, impulse test, flexure fatigue test, tensile test, hydrostatic burst test, repeated assembly test, rotary flexure test and mercurous nitrate test). Some of the features of the tube fittings are: All fittings are certified for ASTM F1387. Machined from cold-finished Bar stock in accordance with ASTM specifications. Shaped bodies are machined from closegrained forgings in accordance with ASTM specifications. Function with thick and thin wall tubing. Interact with a variety of tube materials. For thermal compatibility and corrosion resistance, all components are made from the same material. Resistant to temperature cycling. Compensate for the variables encountered in the materials and tube. Flow area is minimally reduced. For more information regarding Merit’s new line of tube fittings and valves, please contact your local regional sales manager or the inside sales team by phone at 800/726-9800 or email at firstname.lastname@example.org.
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