The SMC connector line accomplishes the following for our large base of global clients:

  • Provides a comprehensive line of fittings, speed controllers, and tubing
  • Includes clean room options and a deep standard feature base
  • Integrates one-touch technology in both fittings and speed controls
  • Provides stainless steel and brass options
  • Maintains energy consumption options

Understanding that finding a single source to meet your complete pneumatic needs can be difficult, SMC strives to be the single source option for all of your pneumatic system needs.




General Purpose Fittings

SMC One-touch fittings come in metric and inch size fittings and are available in a wide variety of sizes, body styles and thread types. The specially designed packing provides positive sealing under pressure without the reduced flow common with compression fittings. SMC offers one touch fittings in a number of special environments such as anti-static, flame resistant, clean room and food service fittings.

Series: KQ2, KJ, KA, KE, KG, KP, KR



Specialty Fittings

Special fittings are available for use in demanding environments. Fluoropolymer fittings are available for use in clean room environments and swivel fittings can be used for rotary applications.

Series: H/DL/L/LL, KF, KK, KS, KW, KX



Stainless Steel and Brass Fittings

Both one-touch fittings, the SMC brass and stainless steel fitting series are compact and lightweight.  These two options offer even more configuration variations and tube sizes than the earlier KQG series.  These brass and stainless steel fittings are versatile working with the following tubing:  FEP, PFA, nylon, soft nylon, polyurethane, and polyolefin.

Series:  KQB2, KQG2




Manifolds allow multiple tubes to be connected or disconnected in a one-touch operation without tube connection errors. The time required for connection and disconnection is substantially reduced.

Series: DM, KB, KC, KDM, KM, KRM, M




Flow Controls

Speed Controllers

The SMC speed controllers have a broad range of applications and specialty focus such as flow control use at low speed, and with residual pressure. Further options within the series include a built in one-touch fitting, an integrated pilot check valve, a meter-in and meter-out dual flow control, a stainless steel option.  With the ASR series, the environmentally conscious consumer can reduce air consumption by 25% through the inclusion of a quick supply exhaust valve.

Series: AS, ASR, ASD, ASP, ASV, ASN2, AK, AQ





SMC manufactures Fluoro-resin tubing for use in environments involving high temperatures and/or corrosive fluids. Tubing is also available in a number of other materials both with and without reinforcement for use in standard applications.  SMC fittings incorporate a positive tube seal while the fitting is under pressure which allows polyurethane tubing to be used.

Tubing is available in sizes of 1/8", 5/32", 3/16", 1/4", 5/16", 3/8", and 1/2". Metric tubing sizes of 3.2, 4, 6, 8, 10, 12, and 16mm are available.

Tubing Series:
Polyurethane Tubing: TAU, TCU, TFU, TIUB, TU
Nylon Tubing: T, TAS, TIA, TISA, TRS, TS
Spark Resistant Tubing: TRB, TRTU, TRBU
Coaxial Tubing: TW
Polyolefin Tubing: TPH, TPS
Moisture Control Tubing: IDK


High Purity



High Purity Tubing

Utilizing high grade, high purity fluoropolymer for its extrusion (see SMC for details) SMC's TIL Series tubing meets the most stringent industry standards for cleanliness, including SEMI F57. The internal surface finish and overall manufacturing quality set the standard.

Series: TIL, TL


High Purity Fittings

SMC's flagship fluoropolymer fitting, Series LQ3 is now the default standard at the world's largest semiconductor OEM and end user customers. The robust, leak-free mechanical structure and high purity swept flow characteristics make LQ3 the new industry standard in critical fluid management. LQ3 is suitable for a wide range of applications including semiconductor, automotive, genetic engineering, textile, hydrogen fuel cells, and many others.

Series: LQ3