Is the Quad fitting for metric stainless steel tubing, M764L compatible with tubing of different wall thicknesses and OD sizes?

Quad fitting for metric stainless steel tubing, M764L is compatible with tubing of different wall thicknesses and OD sizes within its specified range. Its permissible working pressure and secure, leak-tight performance depend on the tubing outer diameter and wall thickness, so correct selection and matching to the coupling’s rated OD/wall combinations is required. For safe, reliable operation in demanding environments, ensure tubing meets the coupling’s dimensional and material specifications (metric OD and appropriate wall thickness for the intended pressure). If in doubt, consult product specifications or the manufacturer for exact OD/wall limits and permissible working pressures.

Can the Quad fitting for metric stainless steel tubing, M764L withstand cyclic pressure and temperature variations in long-term service without compromising leak-tightness?

Yes — the Quad fitting for metric stainless steel tubing, M764L is designed to withstand cyclic pressure and temperature variations in long-term service without compromising leak-tightness, provided it is specified and installed correctly. Key reasons: - Material: Made from AISI 316 stainless steel, offering excellent corrosion resistance and mechanical strength over wide temperature ranges, which preserves sealing surfaces under thermal cycling. - Robust design: Engineered as a high-performance four-way coupling to maintain secure, leak-tight connections even in aggressive process environments. - Pressure rating flexibility: Permissible working pressure is tied to tubing outer diameter and wall thickness, allowing selection of tubing and fitting combinations that meet the required cyclic pressure loads. - Industry use: Intended for demanding applications (chemical, petrochemical, pharmaceutical, energy, nuclear, advanced process engineering), implying suitability for repeated thermal and pressure cycles when used per recommended parameters. Caveats: - Long-term leak-tightness depends on correct matching of tubing dimensions, wall thickness, and pressure/temperature cycles to the fitting’s rated limits, proper installation (torque, alignment), and consideration of system dynamics (vibration, rapid cycling, corrosive media). - For severe cyclic conditions, verify the specific tubing/fitting combination’s permissible working pressure and perform application-specific qualification or testing (fatigue/thermal cycling) as required by your safety and reliability standards.

Quad fitting for metric stainless steel tubing, M764L

All products, LET-LOK precision connectors/

Additional information

Material	SS – stainless steel
Standard length [m]	25

The LET-LOK® four-way coupling for metric tubing is a high-performance solution designed to meet the demanding requirements of industries such as chemical processing, petrochemicals, pharmaceuticals, energy, nuclear power, and advanced process engineering. Manufactured from premium AISI 316 stainless steel, it ensures exceptional resistance to corrosion, durability under extreme conditions, and long-term reliability in critical applications. Its robust construction allows for secure and leak-tight connections, supporting safe and efficient operation even in highly aggressive environments. The permissible working pressure depends on the tubing’s outer diameter and wall thickness, enabling precise adaptation to specific system requirements and guaranteeing optimal performance. Engineered for versatility and ease of integration, this coupling provides a dependable choice for professionals seeking uncompromising quality, safety, and efficiency in complex installations.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HM-LM7102L-03-SS	Four-way connector for 3 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-06-SS	Four-way connector for 6 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-08-SS	Four-way connector for 8 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-10-SS	Four-way connector for 10 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-12-SS	Four-way connector for 12 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-16-SS	Four-way connector for 16 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-18-SS	Four-way connector for 18 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-20-SS	Four-way connector for 20 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-22-SS	Four-way connector for 22 mm tubing, SS	-	-	In stock	Enquiry
HM-LM7102L-25-SS	Four-way connector for 25 mm tubing, SS	-	-	In stock	Enquiry

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The LET-LOK® four-way coupling for metric tubing is a high-performance solution designed to meet the demanding requirements of industries such as chemical processing, petrochemicals, pharmaceuticals, energy, nuclear power, and advanced process engineering. Manufactured from premium AISI 316 stainless steel, it ensures exceptional resistance to corrosion, durability under extreme conditions, and long-term reliability in critical applications. Its robust construction allows for secure and leak-tight connections, supporting safe and efficient operation even in highly aggressive environments. The permissible working pressure depends on the tubing’s outer diameter and wall thickness, enabling precise adaptation to specific system requirements and guaranteeing optimal performance. Engineered for versatility and ease of integration, this coupling provides a dependable choice for professionals seeking uncompromising quality, safety, and efficiency in complex installations.