China 3-Pole Switchgear Drawer Connector Manufacturer, Supplier, Factory

SOLH 4H series hand lever directional control valves are developed in accordance with mainstream industrial standards, covering 5/2-position and 5/3-position configurations. Operated purely by manual lever manipulation without electromagnetic coils or pneumatic pilot signals, these spool-type manual valves are widely adopted for on-site equipment commissioning, emergency safety shutdown and inching control of double-acting cylinders. Constructed with high-strength aluminum alloy housings and precision spool assemblies, two positioning structures are optional: automatic spring return and steel ball mechanical locking. Crucially, the mounting dimensions are fully consistent with 4V solenoid valves and 4A air-operated valves, enabling direct interchange and flexible switching among electric, pneumatic and manual control modes in standard pneumatic systems. The five-port layout complies with international general specifications: P serves as the main compressed air supply inlet; Ports A and B connect to two cavities of double-acting cylinders to govern extension and retraction movements; R and S are exhaust ports compatible with standard silencers to lower exhaust noise. For 5/2-position models, spring-reset variants automatically rebound once the lever is released to deliver foolproof protection against unintended continuous actions; self-locking versions secure the spool position via steel ball positioning and stay latched until manual switching, ideal for long-duration fixed working states. All 5/3-position units adopt dual stable ball positioning with three configurable neutral modes. Closed Center (Type C) seals all ports to lock cylinders and prevent falling of vertically mounted actuators; Exhaust Center (Type C) vents A/B ports for pressure relief, allowing free cylinder floating during manual testing; Pressure Center (Type P) supplies compressed air to both working ports for synchronous clamping and force balance regulation. Running on filtered compressed air within 0.15~0.8 MPa under lubrication-free conditions, the valves work steadily at -20℃ to +70℃. Available specifications range from 4H200 to 4H400 with multiple thread options. Devoid of electrical components, the valves feature spark-free inherent explosion resistance, well-suited for flammable, dusty and high-risk production sites. They support panel mounting and base installation, frequently applied for production line manual commissioning, emergency pneumatic circuit cut-off, safety interlock loops and retrofitting replacement of automatic control valves.

The Switchgear Bracket for Outlets is a crucial component designed to securely mount electrical outlets within switchgear assemblies. This bracket is engineered for robustness, ensuring that outlets are firmly held in place to maintain reliable electrical connections. Made from high-grade materials, typically galvanized steel or aluminum, the bracket provides excellent durability and resistance to corrosion, which is essential for maintaining the integrity of the electrical system over time.

We are committed to developing Load Switch, Outdoor High Voltage Auto Recloser, Indoor Voltage Vacuum Breaker that are closer to the needs of consumers and provide consumers with better products. We always take rewarding society as a blessing and take the prosperity and revitalization of the motherland as our own responsibility. Our company takes our enterprise reputation and staff quality ahead of enterprise development as our development guarantee. We insist on the idea of science and technology is the first productive force. With our technical skils, efficient management and high-quality products, we have won praise from our customers with our cost-effective goods. FKRN-24D when load break switch equip with high voltage current limited fuse(with striker), it comes into being load break switch and fuse combination apparatus,acting as protecting and control apparatus for transformers, cable and overhead wiring. When a phase or multiphase fuse fusing, load break switch automatic brake three-phase. These series load break switch are especially applicable in rural,urban terminal substation and prefabricated substations, as well as ring network power supply.

SOLH 2W series 2/2-way normally closed fluid solenoid valve with solid brass body includes small orifice direct-acting 030/050 models and large bore pilot-operated 150~500 variants, designed for automatic on-off control of clean water, compressed air, cutting coolant, lubricating oil and weakly corrosive fluid pipelines. The direct-acting version realizes zero differential pressure startup with no minimum working pressure limit, features compact size, universal mounting orientation and millisecond high-frequency switching, ideal for low-pressure micro-flow branches, vacuum auxiliary water circuits and single-point cooling for small machine tools. The pilot-operated type requires a minimum 0.05MPa startup differential pressure, delivers ultra-large flow with low-power low-temperature-rise coils, suited for air compressor main drain lines, general assembly main spray water circuits and high-flow circulating pipelines for water treatment systems. Standard NBR nitrile rubber seals are equipped, with optional heat & acid resistant EPDM food-grade seals. Multiple international thread standards (PT/G/NPT) and full-range coil voltages (DC12/24V, AC24/110/220V) are available, supported by DIN plug sockets for cabinet wiring and IP65 waterproof wire leads for humid outdoor equipment. Heat-resistant coils allow 24-hour continuous energization without burnout. Selection guidelines: choose direct-acting type for pipelines with static pressure below 0.05MPa and micro single-point flow; select pilot-operated variant for G1/2 and above main headers with stable high-pressure large circulation. EPDM seal is mandatory for hot water, purified water and food-grade fluid media.

The NS250 Polyfast switchgear accessories are essential components designed to enhance the functionality and safety of electrical switchgear systems. Engineered for robustness and reliability, these accessories are specifically tailored for the NS250 series, ensuring compatibility and optimal performance.

SOLH AFF main-line coarse filter and AM oil mist separator can be cascaded in series and are fully interchangeable with matching SMC air purification components, complying with ISO8573-1 compressed air cleanliness standards. The 1μm AFF primary filter removes 99% condensed water droplets, dust and rust particles; the 0.1μm AM fine oil mist separator limits residual oil content below 1mg/m³ for oil-free clean air supply. The full flow lineup ranges from 300 to 14500 L/min with port threads 1/4"~2". Each unit comes with built-in visual clog indicator and lightweight stainless steel water bowl, while suffix-D normally open float auto drain is optional. Pressure drop is controlled under 5kPa with 20% higher flow capacity than conventional filters. Modular cascade connection is supported for combination with AMD ultra-fine activated carbon filters, serving as multi-stage water & oil removal post-processing equipment after air compressors for CNC machinery, food & pharmaceutical lines, 3C coating workshops and semiconductor oil-free processes. A 1.2~1.5 times flow margin is recommended during selection, and auto drain variants are preferred for 24-hour unattended production with high condensate output.