China Switchgear circular marking system Manufacturer, Supplier, Factory

SOLH 4A series 5/2-way and 5/3-way air-operated directional control valves are the full pneumatic counterpart of the classic 4V electromagnetic solenoid valve series. Driven entirely by external pneumatic control signals with no coils or electrical parts inside, this valve achieves inherent explosion-proof safety and serves as the core control unit for non-electric pneumatic loops, hazardous explosive areas and safety interlock systems. It adopts high-precision spool configuration and robust aluminum alloy housings, sharing identical installation dimensions and flow characteristics with the 4V series for seamless direct replacement and upgrade between electric-driven and full-pneumatic control schemes. The standard five-port layout follows industry universal specifications: P for main air supply inlet, A and B as working ports connected to two chambers of double-acting cylinders for extension and retraction regulation, R and S as exhaust ports compatible with standard silencers to reduce operational noise. The 5/2-way lineup supplies single pneumatic control and double pneumatic control options. Single air-controlled models switch upon receiving control air signals and automatically reset by built-in springs once the control pressure disappears to deliver fail-safe protection. Double air-controlled variants feature no return springs and lock the current spool position persistently after control air is disconnected, supporting long-duration positioning and pressure retention without sustained control air input. 5/3-way versions are exclusively double air-driven with three selectable neutral configurations: closed center (Type C) seals all ports to lock cylinders and prevent vertical falling; exhaust center (Type E) vents A/B ports to atmosphere for pressure release and manual commissioning; pressure center (Type P) feeds compressed air to both working ports for synchronous clamping and force balance adjustment. Suitable for filtered compressed air within 0.15~0.8 MPa working pressure, the whole series supports lubrication-free operation and works reliably from -20℃ to +70℃. Widely applied in chemical plants, painting workshops, mining and other explosion-risk environments, it cooperates with mechanical valves, hand-operated valves and air pilot valves to build complete all-pneumatic logic control systems for double-acting cylinders.

Richge specializes in producing high-quality Switchgear Downstream Jaw Supports, dedicated to providing reliable electrical connection solutions. Our products are manufactured using advanced technology, ensuring exceptional performance and durability under various operating conditions. With strict quality control, our Switchgear Downstream Jaw Supports have earned a strong reputation in the industry, providing critical support and safety for our customers' electrical systems. We uphold the principles of innovation and quality, continuously delivering superior products and services to our clients.

The Indoor High-Voltage Switchgear Ground Switch is a critical safety device designed for use in high-voltage electrical systems, ensuring safe grounding and isolation of equipment during maintenance and servicing. Suitable for voltage ranges from 12kV to 40.5kV, it provides exceptional resistance to short-circuit conditions and delivers reliable mechanical operation. Its compact and efficient design simplifies installation and ensures ease of use, making it an ideal choice for integration in high-voltage switchgear and substations. This grounding switch adheres to international standards, guaranteeing safe and stable performance in complex electrical networks.

At Richge, we specialize in high-quality switchgear components, including our advanced switchgear keys. Engineered for precision and durability, our switchgear keys ensure secure and reliable operation of your electrical systems. Designed to meet rigorous industry standards, our keys provide essential functionality for both safety and efficiency. We offer a wide range of switchgear keys to suit various applications, from standard to customized solutions. Our commitment to innovation and quality guarantees that each key delivers optimal performance and longevity. Partner with us to enhance your switchgear systems with top-of-the-line components. Discover more about our products and how they can meet your specific needs by visiting our website or contacting our sales team.

Product Details and Application of Switchgear Support Component The Switchgear Support Component is a crucial element in ensuring the structural integrity and operational efficiency of electrical switchgear systems. Made from high-quality materials, such as galvanized steel or durable composites, these components are designed to withstand environmental stressors, including temperature fluctuations, humidity, and mechanical vibrations.

GN19-12(C) indoor HV disconnect switch applies to power system of rated voltage 12kV, AC 50/60Hz. It is equipped with CS6-1 manual-operating mechanism and is used to break and make circuit under no-load. There are additional pollution type, high-altitude type and power indicating type. It is made as per IEC 62271-102. The isolating switch of this series is equipped with a CS6-1 manual operating mechanism (the isolating switch with a panel has its own conjoined operating mechanism).   This series of isolating switches is a three-pole type, which consists of a chassis, a rotating shaft, a lever, a porcelain pillar insulator, a knife and a wiring board. The rotating shaft is arranged on the bottom frame, on which three pairs of levers are welded, and the levers pass through the pull rod porcelain insulator and the knife necklace. The rotating shaft extends out of the base frame, and any section of the rotating shaft can be connected with the operating mechanism.   Type C is through the wall. Among them, C1 means that the rotation is on the side through the wall; C2 means that the disconnection is on the side through the wall; C3 means that both sides are on the side through the wall.