China Switchgear Propulsion Unit Manufacturer, Supplier, Factory

SOLH RVUM mini pressure regulator adopts self‑developed direct‑acting piston technology. Mass‑produced in‑house with sufficient stock, it serves global 3C, dispensing and medical‑automation clients. Featuring one‑touch fitting and 0.1‑0.8 MPa stable pressure output, this compact air pressure reducing valve fits narrow‑space micro‑pneumatic circuits. Multiple mounting options support single‑point and cluster pressure control, delivering consistent performance for high‑precision small‑flow automation projects.

SOLH VEX1 balanced poppet 3-way relief pressure regulator adopts poppet structure instead of traditional diaphragm design, delivering 3~5 times higher flow than standard AR regulators with oversized relief port for fast pressure relief and stable back pressure. It achieves superior regulation precision with hysteresis ≤0.03MPa, repeatability & sensitivity ≤0.01MPa. Two control modes are available: remote air pilot and integrated solenoid pilot for automatic multi-stage pressure switching. Max inlet pressure reaches 1.0MPa, with port sizes ranging from 1/8" to 2". Mountable at any angle and lubrication-free for dry oil-free air circuits; air pilot version works 0~60℃ while solenoid pilot variant ranges 0~50℃. Widely used for large air tank pressure stabilization & rapid relief, high-flow air blowing, large bore cylinder / air motor driving and multi-stage tension control systems for film & wire manufacturing.

Switchgear Spring Clamp Bolt: Product Details and Applications The Switchgear Spring Clamp Bolt is an essential component designed for securing various elements within switchgear systems. Crafted from high-grade materials, this bolt offers exceptional durability and resistance to corrosion, ensuring reliable performance in demanding environments. Its spring mechanism allows for a flexible yet firm grip, accommodating slight variations in alignment and maintaining stability under dynamic loads.

Richge is a manufacturer of Switchgear self-locking device in China, specializing in high-precision components designed to enhance the safety and efficiency of medium-voltage switchgear systems. Our Switchgear self-locking device are engineered to provide reliable protection and control, ensuring secure operation in electrical switchgear assemblies. The Switchgear Self-locking Device is a security mechanism used for the electrical switching device, ensuring that the switching device, such as the circuit breaker, isolation switch, and load switch, can maintain the secure state during operation. The device is designed to prevent accidental operation or misoperation and to ensure that the equipment will not be re-operated in the event of power failure or other dangerous situations, thereby improving operator safety and equipment reliability.

Richge specializes in the design and manufacturing of high-quality Switchgear Blocks, essential components for ensuring the reliability and safety of electrical systems. Our products are engineered with precision to meet the stringent demands of modern power distribution networks. Utilizing advanced materials and cutting-edge technology, our Switchgear Blocks provide superior durability, thermal stability, and electrical performance. We are committed to delivering innovative solutions that enhance the efficiency and safety of your operations. With a focus on quality and customer satisfaction, Richge is a trusted partner in the global electrical industry, serving a diverse range of applications across various sectors.

SOLH 3L series 3/2-way hand pull directional control valves follow standard industry specifications with a default Normally Closed (NC) structure equipped with automatic spring return. Operated via straightforward axial push-pull handle movement, this manual pneumatic valve requires no electric parts or pneumatic drive signals, making it an intrinsically safe manual switching component for pneumatic circuits. It is widely deployed for single-acting cylinder actuation, circuit on-off switching, inching commissioning and safety interlock systems, especially ideal for field debugging, emergency cut-off and explosion-prone working environments. The three-port layout complies with universal industry standards: P for main compressed air inlet, A for working output port connecting single-acting cylinders, and R for exhaust port compatible with standard silencers to reduce exhaust noise. Under normal released status, the built-in return spring presses the precision spool to seal the P inlet; port A links to R for pressure relief to maintain the closed safe state. Manual pulling of the handle shifts the spool to connect P and A ports for air supply to drive cylinder movement. Once released, the spring instantly resets the valve, cutting air intake and exhausting residual pressure to prevent unintended continuous operation. Constructed with robust aluminum alloy housings and low-friction precision spools, the valve supports lubrication-free operation with stable sealing performance. Four size grades ranging from compact 3L100 up to heavy-duty 3L400 cover thread specifications M5, G1/8, G1/4, G3/8 and G1/2; PT, NPT and G thread options are available to satisfy global installation demands. The valve supports panel mounting and base mounting, sharing identical installation dimensions with the 3A air-operated valves for seamless interchange between manual and pneumatic control modes. Without any electrical components, it delivers spark-free operation suitable for flammable, dusty and humid workshops, commonly used for manual clamping, ejection cylinder control, equipment maintenance safety lockout and combined manual-pneumatic logic control systems paired with 3A pilot valves.