Our Technologies

Pneumatics & Vacuum



Motion Control



Machine Vision & ID

UV Curing

Aluminum Extrusion


Join Mailing list

Jun_air Services Center
We are an Authorized Jun-Air Service Center


GAST Service Center Gast Service Center Ohlheiser is Certified GAST Service Center



S-LOK logo S-LOK Home Page S-LOK Instrumentation Valve Products

 S-LOK precision manufactured line of tubing fittings and instrumentation valve products. S-LOK takes an engineered approach to insure their products maintain the highest level of gauge ability, interchangeability, corrosion resistance, and consistency.           

S-LOK Tube Fitting more information Tube Fittings

S-LOK Tube Fittings have been designed specifically for the many demanding applications such as chemical, petroleum, power generating, pulp, paper and various types of manufacturing industries. They provide a highly reliable, leak proof and torque free seal on all tubing connections. S-LOK Tube Fittings are commonly used on instrumentation, process and control systems, where high quality tube fittings are required.

S-LOK tube fittings are composed of four precision parts; body, nut, front ferrule and back ferrule. S-LOK tube fittings are manufactured under very strict quality control to assure maximum reliable performance. S-LOK tube fittings require no special tools assembly. Connections can be quickly and easily made by simple insertion and tightening the nuts.

Tube Fittings

S-LOK Pipe Fitting more information Pipe Fitting

S-LOK Pipe Fittings offer burr-free internal and external surfaces.  All instrument thread fittings are designed in accordance with ASME B31.3 for instrument and process.  NPT threads are based on requirement of ASME B1.20.1 and male threads are protected with a cap.

Pipe Fittings

S-LOK Instrumentation tube fittings more information Instrumentation Tube Fitting

Bite Type Instrumentation Tube Fitting manufactured by S-LOK are designed to produce strong, reliable, leak- free joints in hydraulic, pneumatic, and lubrication applications. 

Instrument Tube Fitting

S-LOK Instrument Valves more information Instrument Valve

Instrument Valves manufactured by S-LOK are available in Integral Bonnet, Union Bonnet needle valve, Rising Plug valve, and Toggle valve varieties for use in instrument isolation.

Instrument Valves

S-LOK Stainless Steel Instrumentation Tubing more information Stainless Steel Instrumentation Tubing

S-LOK stocks a complete line of welded and seamless tubing in sizes ranging from 1/8” through 1” in 304/L and 316/L. S-LOK can also help with any exotic metal tubing inquiries you may have.

S-LOK Home Page


SMC Epson GAST Micropump Baumer Turck JunAir Baco Controls Anderson CEJN Coilhose Desoutter ESA Euchner FreelinWade Hitachi ZenPure LinkTech MOXA NB Linear Neugart Norstat Panasonic Parco Pinnacle Pizzio PULS SMAC Stabilus Sunx Vmeca Airpot Airpel WIKA Advanced Air Werma Request a Quote