DK-LOK
DK-LOK is a global manufacturer of precision-engineered tube fittings, valves, regulators, and instrumentation components designed for safe, reliable fluid and gas control. Its extensive product offering includes compression tube fittings, ball and needle valves, check valves, manifolds, filters, quick connectors, and other components for oil and gas, chemical processing, semiconductor, power generation, alternative energy, and general industrial applications. Engineered for leak-tight performance under demanding pressure, temperature, and environmental conditions, DK-LOK products help customers build dependable fluid systems while simplifying installation and maintenance.
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Stainless Steel Thermocouple Connectors Tube x Male NPT
DK-LOK
$10.99 - $24.99Thermocouple Connectors - 316 Stainless Steel Thermocouple Connectors are precision-engineered instrumentation tube fittings designed for secure thermocouple and probe installations in high-pressure... -
Nut & Ferrule Sets 316 Stainless Steel
DK-LOK
$6.99 - $29.99Nut & Ferrule Sets - 316 Stainless Steel Nut & Ferrule Sets are precision-engineered replacement components designed for instrumentation compression tube fittings. Manufactured from... -
Tube x Female Run Tee 316 Stainless Steel
DK-LOK
$36.99 - $179.99Tube x Female Run Tee - 316 Stainless Steel Tube x Female Run Tee fittings are precision-engineered instrumentation compression fittings designed to connect two fractional OD tube connections inline... -
Tube x Female Branch Tee 316 Stainless Steel
DK-LOK
$34.99 - $174.99Tube x Female Branch Tee - 316 Stainless Steel Tube x Female Branch Tee fittings are precision-engineered instrumentation compression fittings designed to connect two fractional OD tube connections... -
Tube x Male Run Tee 316 Stainless Steel
DK-LOK
$28.99 - $154.99Tube x Male Run Tee - 316 Stainless Steel Tube x Male Run Tee fittings are precision-engineered instrumentation compression fittings designed to connect two fractional OD tube connections inline with... -
Tube x Male Branch Tee 316 Stainless Steel
DK-LOK
$28.99 - $161.99Tube x Male Branch Tee - 316 Stainless Steel Tube x Male Branch Tee fittings are precision-engineered instrumentation compression fittings designed to connect two fractional OD tube connections with... -
Tube x Male 90° Elbow 316 Stainless Steel
DK-LOK
$16.99 - $560.99Tube x Male 90° Elbow - 316 Stainless Steel Tube x Male 90° Elbow fittings are precision-engineered instrumentation compression fittings designed to connect fractional OD tubing to male NPT... -
Tube x Male 45° Male Elbow 316 Stainless Steel
DK-LOK
$21.99 - $179.99Tube x Male 45° Male Elbow – 316 Stainless Steel 45° Male Elbow Tube Fittings are precision-engineered instrumentation compression fittings designed to connect fractional OD tubing to... -
Tube Insert 316 Stainless Steel
DK-LOK
$3.99 - $10.99Tube Insert - 316 Stainless Steel Tube Inserts are designed to provide internal tube support for plastic tubing used with instrumentation compression fittings. Manufactured from high-quality 316/316L... -
Tube Cap 316 Stainless Steel
DK-LOK
$8.99 - $307.99Tube Cap - 316 Stainless Steel Tube Caps are designed to seal unused instrumentation tube fitting connections in fluid handling and process control systems. Manufactured from high-quality 316/316L... -
Tube Plug 316 Stainless Steel
DK-LOK
$8.99 - $173.99Tube Plug - 316 Stainless Steel Tube Plugs are designed to seal off unused instrumentation tube fitting connections in fluid handling and process control systems. Manufactured from high-quality... -
Tube x Tube Reducing 90° Union Elbow 316 Stainless Steel
DK-LOK
$21.99 - $123.99Tube x Tube Reducing 90° Union Elbow - 316 Stainless Steel Tube x Tube Reducing 90° Union Elbows are designed to connect two different instrumentation tubing outside diameters while changing... -
Tube x Tube Reducing Union 316 Stainless Steel
DK-LOK
$15.99 - $450.99Tube x Tube Reducing Union - 316 Stainless Steel Tube x Tube Reducing Unions are designed to connect two different instrumentation tubing outside diameters in straight tube-to-tube fluid system... -
Tube x Tube Union Cross 316 Stainless Steel
DK-LOK
$47.99 - $1,758.99Tube x Tube Union Cross - 316 Stainless Steel Tube x Tube Union Cross fittings are designed to connect four instrumentation tubing lines of the same outside diameter in process control and fluid... -
Tube x Tube Union Tee 316 Stainless Steel
DK-LOK
$28.99 - $703.99Tube x Tube Union Tee - 316 Stainless Steel Tube x Tube Union Tees are designed to connect three instrumentation tubing lines of the same outside diameter in fluid handling and process control... -
Tube x Tube 45° Union Elbow 316 Stainless Steel
DK-LOK
$26.99 - $402.99Tube x Tube 45° Union Elbow - 316 Stainless Steel Tube x Tube 45° Union Elbows are designed to connect two instrumentation tubing lines of the same outside diameter while providing a smooth... -
Tube x Tube Union Elbow 316 Stainless Steel
DK-LOK
$18.99 - $474.99Tube x Tube Union Elbow - 316 Stainless Steel Tube x Tube Union Elbows are designed to connect two instrumentation tubing lines of the same outside diameter while changing direction in compact fluid... -
Female Thread x Tube 90° Elbow 316 Stainless Steel
DK-LOK
$18.99 - $131.99Female Thread x Tube 90° Elbow - 316 Stainless Steel Female Thread x Tube 90° Elbows are designed to connect instrumentation tubing directly to male NPT threaded piping, valves, or equipment... -
Tube x Female Connector 316 Stainless Steel
DK-LOK
$12.99 - $62.99Tube x Female Connector - 316 Stainless Steel Tube x Female Connectors are designed to connect instrumentation tubing directly to male NPT threaded piping, valves, or equipment connections... -
Tube x Male Adapter 316 Stainless Steel
DK-LOK
$10.99 - $53.99Tube x Male Adapter - 316 Stainless Steel Tube x Male Adapters are designed to connect instrumentation tubing directly to female NPT threaded piping, valves, or equipment connections. Manufactured... -
Tube x Tube Union 316 Stainless Steel
DK-LOK
$14.99 - $329.99Tube x Tube Union - 316 Stainless Steel Tube x Tube Unions are designed to connect two sections of instrumentation tubing together while providing secure, leak-tight performance in high-pressure and... -
Tube x 150# Flange Adapter 316 Stainless Steel
DK-LOK
$124.99 - $190.99Tube x 150# Flange Adapter - 316 Stainless Steel DK-LOK Tube x 150# Flange Adapters are designed to connect instrumentation tubing systems directly to ANSI Class 150 flanged piping connections...