China single supply valve cost-effective vacuum unit ZL112-K2 Manufacturer, Supplier, Factory

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.

The indoor High-Voltage Grounding Device is a safety protection device designed for high-voltage power systems, used to effectively isolate electrical equipment from the grid and ground it, ensuring the safety of personnel and equipment during maintenance or inspection. This product is typically suitable for voltage levels ranging from 12kV to 40.5kV, with strong short-circuit current withstand capabilities and reliable mechanical operation performance. Its compact structure, easy installation, and flexible operation make it widely applicable in high-voltage switchgear and substations. Designed to meet both national and international standards, it ensures long-term stable operation in complex power environments.

Switchgear Support Frame Cabinet Hinge for Switchgear: Product Details and Applications The Cabinet Hinge for Switchgear is a critical component designed to enhance the functionality and durability of electrical switchgear enclosures. Crafted from high-quality materials such as stainless steel or heavy-duty zinc alloy, these hinges offer superior corrosion resistance and strength, ensuring long-lasting performance even in demanding environments.

At Richge, we specialize in high-quality switchgear hinge parts designed to enhance the functionality and durability of electrical switchgear systems. Our product range includes a variety of hinge components, such as heavy-duty hinges and precision-engineered pivot points, crafted from premium materials for maximum reliability. These hinges ensure smooth operation, easy access, and robust performance in demanding environments. With a commitment to innovation and customer satisfaction, we deliver solutions that meet the highest industry standards, supporting a wide array of applications in industrial, commercial, and utility sectors. Choose Richge for top-notch hinge parts that guarantee safety and efficiency in your switchgear systems.

The SOLH VBAT series air tank by Richge Technology is a dedicated pneumatic pressure reservoir perfectly matched with VBA booster valves. Available in carbon steel and SUS304 stainless steel, it adapts to diverse industrial environments. Featuring stable pressure storage and airflow compensation, it reduces air pressure fluctuation and extends the service life of booster systems. Certified with CE, ASME, GB and ISO9001, it offers 5L-38L standard capacities and customizable ports & pressure grades. Widely used in automated production lines, automotive manufacturing, 3C electronics and precision testing, it serves as a reliable core accessory for industrial pneumatic pressure boosting systems.

At Richge, we specialize in high-quality switchgear components designed to enhance the reliability and efficiency of electrical systems. Our switchgear brackets are engineered with precision to provide robust support and secure mounting for various switchgear assemblies. Crafted from durable materials, our brackets ensure long-lasting performance and withstand the rigors of demanding environments. Our commitment to excellence and innovation ensures that each bracket meets industry standards and client specifications. Whether for new installations or upgrades, Richge delivers solutions that support seamless operation and maintenance of your switchgear systems. Trust us for dependable, high-performance brackets that meet your engineering needs.