China negative pressure regulator Manufacturer, Supplier, Factory

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 MK six-surface mount compact cylinder is upgraded from MD cylinder with built-in anti-rotation mechanism. The piston rod anti-twist accuracy reaches ≤±0.5°, directly interchangeable with Airtac MD and SMC CQS series. Square thin body allows bracket-free installation on six sides and facilitates compact parallel layout of multiple cylinders. Variants include double acting MK, single acting MSK/MTK, MKD double rod and MKJ adjustable stroke models. Built-in magnetic ring optional with rubber end buffers and oil-free capability. Bore sizes φ6~32mm, widely applied in 3C precision tooling and short-stroke clamping positioning for automation requiring fixed workpiece angle in confined space.

SOLH ZSE30A / ZSE30AF / ISE30A high precision digital pressure switches are fully interchangeable with matching SMC models, boasting ultra-high measurement accuracy of ±0.2%FS with 4-digit dual-color red/green LCD. Green backlight activates when pressure stays within preset safe range, red light triggers for overpressure/underpressure alarm; display logic can be reversed as needed. Three measuring ranges cover full application demands: ZSE30A for single vacuum 0~-101kPa, ZSE30AF universal compound pressure -100~+100kPa, ISE30A standard positive pressure -0.1~1.0MPa for mainstream 0.4~0.7MPa factory air supply. Each unit comes with 2-channel independent NPN/PNP open collector switch outputs, with optional 1~5V analog voltage or 4~20mA analog current signals for continuous closed-loop PLC pressure data acquisition. Exclusive one-click parameter copy function transfers settings from one master unit to up to 10 slave units, drastically cutting batch commissioning errors. Powered by wide-range DC12~24V, fitted with M5/Rc1/8 port and IP40 dustproof rating. Widely deployed for cylinder clamping pressure monitoring, vacuum chuck adsorption failure alarm and real-time pressure supervision across all automated pneumatic circuits, outperforming traditional mechanical pressure switches in precision, remote visibility and signal expandability.

The indoor withdrawable vacuum circuit breakers are suitable for three-phase AC power systems with rated voltages up to 12~24kV and frequency 50/60Hz. They are widely used in power plants, substations, petrochemicals, metallurgy, manufacturing and other industries, airports, residential areas,... VSG-12 Indoor High Voltage Vacuum Circuit Breaker(abbr.: circuit breaker) is three-phrase A.C. 50Hz indoor of power supply distribution equipped with the rated voltage 12 KV. This product is in accordance with GB1984-2003( high voltage A.C. circuit breaker),JB3855-1996 (3.6-4.5KV indoor A.C. high voltage circuit breaker), DL403-2000(technical conditions for ordering of 12-40.5KV high voltage vacuum circuit breaker) and IEC standard 62271-100:2001( high volage A.C. Circuit breaker). It can be used for protecting and controlling equipment in the grid equipment and the dynamic design of industrial and mining enterprise .It is suitable for switching load and frequent operation with different property and with the capability of many times operations of breaking short-circuit current.

Switchgear Control Button: Product Details and Applications The Switchgear Control Button is a critical component in electrical switchgear systems, designed to facilitate efficient and safe operation of various electrical equipment. Constructed from high-quality, durable materials, these buttons are engineered to withstand harsh industrial environments, including exposure to dust, moisture, and extreme temperatures.

Richge specializes in providing high-quality Switchgear 4P Jaw Support solutions for switchgear. Our 4P jaw supports are designed to stabilize and support the four-pole contact points in switchgear, ensuring reliable electrical connections and performance. Made from premium materials, these supports offer excellent durability and wear resistance. Each product undergoes rigorous testing to meet international standards, making them suitable for various industrial and commercial applications. Choose our 4P jaw supports for superior product quality and exceptional service support.