Fitting Series

SOLH KQ2Y Male Run Tee, also called Service Tee, is a 1-male-thread-inlet 2 push-in-outlet pneumatic tee connector of the KQ2 one-touch fitting family. It can directly branch air lines from threaded ports on cylinders and solenoid valves without cutting main tubing. 360° rotatable thread, compatible with compressed air and vacuum systems, interchangeable with SMC KQ2Y for industrial automation pneumatic piping.

SOLH KQ2E bulkhead union is a panel mount pneumatic one-touch fitting interchangeable with SMC KQ2E. Designed for pneumatic lines passing through equipment panels, control cabinets and cleanroom partitions. It has three structural variants: standard dual-tube bulkhead, compact J mini bulkhead and female-thread-to-tube bulkhead. Equipped with nickel-plated brass lock nut for secure panel fixing, low pressure drop, supports compressed air and vacuum systems, compatible with PU, nylon and PTFE tubing for automation machinery.

SOLH KQ2U and KQ2UD are Y-style multi-port push-in manifold connectors within the KQ2 pneumatic fitting family, direct replacement for SMC KQ2U / KQ2UD. KQ2U is a 1-in 2-out Y splitter, and KQ2UD is a compact 1-in 4-out air distributor. Available in male thread, equal-diameter and reducing versions. Constructed with PBT body and NBR sealing, these quick push fittings support both compressed air and vacuum systems. Widely used for centralized air supply for vacuum cup arrays, multi-cylinder automation fixtures, 3C and packaging machinery.

SOLH KQ2X and KQ2XD series are reducing multi-way push-in pneumatic splitters, interchangeable with SMC KQ2X/KQ2XD. KQ2X is Y-type 1-to-2 reducing branch connector; KQ2XD is cross style 1-in 4-out manifold fitting. Constructed with PBT body and NBR seals, supporting vacuum and compressed air service, compatible with PU and PA nylon tubing. Designed for compact automation fixtures, multi-suction cup vacuum distribution and robotic end effector air piping.

KQ2N stem-style straight push-in fittings are one-touch pneumatic connectors engineered as drop-in replacements for SMC KQ2N series. Featuring male thread, equal-diameter stem and reducing stem variants, these fittings support quick tool-free tube assembly for PU and PA tubing. Suitable for both compressed air and vacuum pipelines in automation equipment, robotic handling and pneumatic fixture applications. PBT body paired with nickel-plated brass threads delivers stable sealing within 0℃~60℃ working temperature.

KQ2C push-in caps are dedicated tube plugs for SOLH KQ2 one-touch pneumatic fittings, engineered as drop-in alternatives to SMC KQ2C. Featuring tool-free insertion, the caps lock into unused push-in ports to achieve reliable sealing for both vacuum and compressed air circuits. Constructed with PBT body and NBR sealing ring, they cover sizes Φ2 through Φ16. Widely used for equipment commissioning, manifold spare port closure and temporary circuit isolation in automation machinery, valve islands and vacuum systems.

KQ2P push-in plug is a dedicated tube stopper for SOLH KQ2 one-touch pneumatic fittings, interchangeable with SMC KQ2P. It is inserted directly into fitting tube ports for temporary or permanent sealing and pressure testing. Made of PBT+PP body and NBR oil-resistant seal, it works within -5℃~+60℃ across vacuum and compressed air systems. Unlike KQ2C outer protective cap, KQ2P seals the internal air passage. Reusable and compact, widely adopted for idle port blocking in automation pneumatic circuits.

KQ2R reducer straight push-in fitting is a KQ2-series different-diameter tube coupler, made as drop-in replacement for SMC KQ2R. Both ends feature standard one-touch ports for connecting two air tubes with different outer diameters. Its smooth tapered internal passage delivers lower pressure drop than combining separate fittings. Constructed with PBT body, SUS304 stainless steel gripping ring and NBR seal, it supports compressed air and vacuum service from -5℃ to +60℃. Multiple sizes cover Φ2~Φ16 tube transitions, commonly used for pneumatic circuit modification and vacuum line diameter conversion in automation machinery.

SOLH KS / KX swivel rotary push-in fittings, low-torque pneumatic rotary union for robot wrists and rotary tables. KS single bearing for low-speed oscillation, KX dual bearing for high-speed continuous rotation. Copper-free nickel-plated build, vacuum compatible, anti-tangle design. Mass stocked by Richge Technology, widely adopted in automation, food and semiconductor projects as SMC equivalent rotary fittings.