China 4H series manual lever valve Manufacturer, Supplier, Factory

Richge specializes in manufacturing high-quality Switchgear Hinge designed for robust and precise operation in electrical enclosures. These hinges are engineered to provide smooth and reliable movement, ensuring the secure attachment and easy access to switchgear cabinet doors. Made from durable materials like stainless steel and zinc alloys, our switchgear hinges offer excellent corrosion resistance and long-term performance in demanding industrial environments. We offer a range of hinge designs to meet various specifications, from heavy-duty applications to compact setups, ensuring that our products contribute to the safety and efficiency of electrical systems worldwide.

The Switchgear Guide Rail is a crucial component in electrical switchgear systems, designed to ensure the smooth and reliable operation of various switchgear parts. Constructed from high-strength, corrosion-resistant materials such as stainless steel or galvanized steel, these guide rails provide exceptional durability and stability under demanding conditions.

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 IRV10 and IRV20 series precision vacuum regulators are specially designed for negative-pressure pneumatic circuits, with an adjustable vacuum range of -100kPa~-1.3kPa and ultra-fine adjustment resolution. Equipped with a self-locking knob, it effectively prevents pressure drift caused by vibration. Featuring large flow rate, low air consumption and lightweight structure, it supports dual-side and rear single port styles with diverse mounting methods. It is a standard precision control component, widely used in automated vacuum picking, electronic assembly, auto processing, air leak testing and packaging machinery.

At Richge, we specialize in high-quality Switchgear Drawer Guide Pins, designed to enhance the performance and reliability of electrical switchgear systems. Our guide pins ensure smooth, precise movement of switchgear drawers, facilitating easy installation and maintenance. Manufactured from durable materials, they offer exceptional resistance to wear and corrosion, guaranteeing long-term operational efficiency. With a commitment to innovation and quality, our Switchgear Drawer Guide Pins are engineered to meet the highest industry standards, providing dependable solutions for various switchgear applications. Trust us for your switchgear components and experience unparalleled performance and reliability.

SOLH HSV series 3/2-way hand slide pneumatic valves adopt an inline sleeve push-pull integrated structure, fully consistent with the dimensional specifications of mainstream AirTAC HSV series and interchangeable with equivalent domestic counterparts. Designed without return springs and equipped with mechanical self-locking positioning, this valve switches airflow by axial pushing and pulling: pushing the sleeve forward connects the P inlet port and A working port for normal air supply; pulling backward disconnects the air intake and automatically links port A with the built-in R exhaust port to rapidly vent residual pressure inside rear pipelines and actuators. It serves as a dedicated safety shut-off switch for pneumatic branch pipelines and essential pressure relief valve for equipment maintenance work. Three standard ports are configured: P for main compressed air inlet, A for output to downstream pneumatic components, and an embedded built-in R exhaust port hidden inside the valve body. A wealth of specifications covering G1/8 up to G1 thread sizes are supplied, paired with three thread layout options (SF single inner & single outer thread, SS double outer threads, FF double inner threads); PT taper thread, G parallel thread and NPT thread are selectable to fit global piping standards. Constructed with hard-anodized aluminum alloy valve bodies, stainless steel anti-rust spools and high-performance NBR nitrile rubber sealing rings, the valve supports lubrication-free operation under filtered compressed air within 0~1.0 MPa rated working pressure and withstands test pressure up to 1.5 MPa. The operating push-pull force is controlled at 18~25 N for smooth operation, and the mechanical locking structure maintains the set position firmly without drifting or air leakage caused by accidental touching. Different from 4HV rotary hand valves used for forward/backward switching of double-acting cylinders, the HSV series is engineered exclusively for pipeline on-off and pressure release. It can be directly installed in series within air pipelines without extra mounting bases to save installation space. Widely deployed for isolating air supply before equipment overhaul, main air circuit safety cut-off of automation tooling, vacuum pipeline switching and branch circuit independent air source control, it effectively eliminates hidden dangers brought by residual pressure during maintenance and guarantees on-site operational safety.