Control Valve

SOLH VM2 (VM200) medium mechanical poppet valve is fully interchangeable with matching SMC models. Featuring medium poppet construction with Cv=0.87 flow coefficient, its flow capacity is around 8 times higher than mini VM1 series, equipped with standard Rc1/4 port and optional NPT/G1/4 threads. It works under 0~1.0MPa and is incompatible with vacuum, adopting lubrication-free wear-resistant poppet seal and robust metal body. Side port and bottom port piping layouts are available, supported by a complete lineup of interchangeable actuators: standard POM roller / hardened steel abrasion-resistant roller lever, one-way anti-rebound roller, straight plunger, flat pushbutton, yellow mushroom emergency stop head, green indicator button and lockable hinge knob. The hardened steel roller variant fits heavy-duty high-wear production lines. Widely used for cylinder & slide table stroke limit detection, equipment manual jog commissioning, jig fixture air switching and safety emergency interlock, it serves as the mainstream mechanical air trigger valve for packaging, textile, printing and general automation production lines.

SOLH VM4 (VM400) medium 3-port poppet mechanical valve is fully interchangeable with equivalent SMC models, positioned between mini VM1 and high-flow VM2 series. Its core advantage lies in compatibility with full pressure range from -100kPa vacuum to 1.0MPa positive pressure, a feature unavailable on VM2. It adopts standard Rc1/8 port with optional NPT/G1/8 threads and Cv=0.38 flow capacity, supporting side and bottom port piping layout. Built with solid metal body, it withstands 1000m/s² impact and heavy vibration, suitable for harsh heavy-duty production lines, with lubrication-free dust-resistant poppet sealing for long service life. A complete set of interchangeable actuators are provided: standard / hardened anti-abrasion steel roller lever, one-way anti-rebound roller, straight plunger, multi-color mushroom emergency stop buttons, 2/3-position rotary knobs, lockable pushbuttons and toggle hinge levers. Widely applied in cylinder & slide table stroke limit detection, vacuum adsorption/release circuits, equipment manual jog commissioning, machine safety emergency interlock and jig fixture switching, it is the ideal medium mechanical trigger valve for working conditions requiring vacuum compatibility and strong shock resistance.

SOLH ITV high flow electro-pneumatic proportional valve is fully interchangeable with equivalent SMC models. Adopting closed-loop pressure feedback system, it accepts DC0–10V voltage, 4–20mA current analog signals, and optional fieldbus communication including CC-Link, PROFINET, EtherNet/IP to achieve stepless, high-precision remote air pressure regulation with ±1% FS control accuracy and IP65 dust & splash-proof protection. Three series cover different flow ranges: ITV1100 for micro low flow, ITV2100 for universal medium flow and ITV3100 for heavy high flow up to 4400 L/min ANR, with adjustable pressure from 0.005 to 0.9 MPa. It supports Rc/NPT/G threads and push-in fittings, built-in LED digital display and self-diagnosis alarm under DC24V low power supply. Widely applied for large bore cylinder actuation, film & wire constant tension control, semiconductor & optical precision processes, automatic dispensing & coating, multi-stage pressure switching for welding and riveting equipment, replacing multiple manual regulators to realize digital centralized pressure control on automated production lines.

SOLH XTO674 and INA14 inline check valves share the same structural platform with ultra-low 0.01MPa cracking pressure, compatible with both compressed air and clean water for anti-backflow protection in vacuum and low-pressure fluid pipelines. XTO674 is an all-brass cryogenic version working down to -30℃; INA14 standard series provides brass or SUS304 stainless steel body, equipped with standard NBR seals plus optional oil & high temp resistant FKM and weather-proof CR seals. Compact inline threaded design with flow arrow marking can be directly mounted in pipelines without extra brackets, effectively preventing vacuum loss and reverse airflow when installed between vacuum generators and suction cups. The two series feature identical overall dimensions and thread sizes for direct field interchange without pipe modification, widely applied in cryogenic equipment, vacuum production lines, corrosion-resistant high-temperature fluid circuits and general pneumatic & water pipelines for one-way pressure retention and backflow prevention.

SOLH 7V compact pilot-operated solenoid valve includes complete 5/2 and 5/3 way variants, covering single-coil spring return, double-coil latching and three center functions: center closed, center exhaust, center pressure supply. It adopts integrated internal centralized exhaust runner design with around 30% higher flow capacity than traditional 4V series valves, featuring switching response ≤50ms and maximum operating frequency up to 5 Hz. Ultra-low power coils generate less heat for continuous energization, with DC power consumption 0.7W and AC 1.1VA. A full size lineup from M5 to 3/8" is offered, supporting both standard thread ports and push-in quick fittings. Valves can be installed individually or stacked on multi-station aluminum manifolds to save cabinet space and simplify main air piping. Operating pressure ranges 0.15~0.8 MPa with working temperature -20℃~70℃. Die-cast aluminum valve body delivers long sealing service life, widely used for cylinder directional switching and centralized pneumatic control on all automated production lines.

SOLH SY series pilot-operated 5-port solenoid valve is fully interchangeable with matching SMC valves, including SY3000 mini, SY5000 medium mainstream, SY7000 large and SY9000 extra-large models. It provides complete circuit options: 5/2 single/double coil and 5/3 three-position with center closed, center exhaust & center pressure supply functions. Standard 0.35W coils and optional 0.1W ultra-low power energy-saving coils generate little heat for continuous energization. Internal pilot version works 0.1~0.7 MPa, while external pilot variant supports -100kPa vacuum environment. The gap-sealed spool reaches up to 200 million switching cycles. Air ports are arranged on side, top and bottom for flexible tubing routing. Valves adopt plug-in snap design compatible with SS5Y manifold valve islands, enabling single-valve maintenance without disassembling the whole bank, with IP65 plug connector and IP67 manifold base rating. Optimized internal runners deliver around 80% higher flow than legacy valves, and built-in pilot filter mesh prevents spool stuck by dust. Widely used for cylinder directional switching and centralized pneumatic control in semiconductor, automotive welding, packaging and medical automation equipment.

SOLH 2S series 2/2-way normally closed fluid solenoid valves include two full lines: direct-acting small orifice 030/050 models and pilot-operated large bore 150~500 variants, for automatic on-off control of clean water, compressed air, cutting coolant, lubricating oil and weakly corrosive liquid pipelines. The direct-acting version enables zero-pressure startup without minimum differential pressure limit, features compact size, universal mounting orientation and millisecond fast switching, ideal for low-pressure micro-flow applications such as single-point machine tool cooling, 3C micro air/water branches and mini cleaning equipment. The pilot-operated type requires a minimum 0.05MPa pressure difference for full opening, delivers ultra-large flow with low-wattage low-heat coils, suited for air compressor drain headers, main spray water lines and high-flow circulating water treatment pipelines. Standard NBR nitrile rubber seals are equipped, with optional acid & hot water resistant EPDM food-grade seals. Multi international thread standards (PT/G/NPT) and global universal coil voltages (DC12/24V, AC24/110/220V) are available, supported by DIN plug and wire lead wiring options. Heat-resistant coils allow long-term continuous energization. Selection guide: direct-acting type for pipelines with static pressure below 0.05MPa and small branch flow; pilot-operated version for G1/2 and above main headers with stable high pressure & large circulation flow. EPDM seal is mandatory for hot water and food-grade fluid media.

SOLH 2W series 2/2-way normally closed fluid solenoid valve with solid brass body includes small orifice direct-acting 030/050 models and large bore pilot-operated 150~500 variants, designed for automatic on-off control of clean water, compressed air, cutting coolant, lubricating oil and weakly corrosive fluid pipelines. The direct-acting version realizes zero differential pressure startup with no minimum working pressure limit, features compact size, universal mounting orientation and millisecond high-frequency switching, ideal for low-pressure micro-flow branches, vacuum auxiliary water circuits and single-point cooling for small machine tools. The pilot-operated type requires a minimum 0.05MPa startup differential pressure, delivers ultra-large flow with low-power low-temperature-rise coils, suited for air compressor main drain lines, general assembly main spray water circuits and high-flow circulating pipelines for water treatment systems. Standard NBR nitrile rubber seals are equipped, with optional heat & acid resistant EPDM food-grade seals. Multiple international thread standards (PT/G/NPT) and full-range coil voltages (DC12/24V, AC24/110/220V) are available, supported by DIN plug sockets for cabinet wiring and IP65 waterproof wire leads for humid outdoor equipment. Heat-resistant coils allow 24-hour continuous energization without burnout. Selection guidelines: choose direct-acting type for pipelines with static pressure below 0.05MPa and micro single-point flow; select pilot-operated variant for G1/2 and above main headers with stable high-pressure large circulation. EPDM seal is mandatory for hot water, purified water and food-grade fluid media.