China 12KV Epoxy Resin Switch Cabinet Insulation Wall Bushing Manufacturer, Supplier, Factory

Our company specializes in high-quality electrical switchgear strips designed for optimal performance and reliability. These strips are engineered to support efficient power distribution and ensure secure connections within switchgear systems. Crafted from premium materials, our switchgear strips offer excellent durability and resistance to electrical and environmental stress. We utilize advanced manufacturing techniques to produce components that meet stringent industry standards. With a commitment to innovation and quality, we provide tailored solutions that enhance the safety and efficiency of electrical installations, meeting the diverse needs of our clients.

The Switchgear Steel Cup Washer is an essential component designed to provide robust support and stability within electrical switchgear assemblies. Crafted from high-quality steel, this washer features a unique cup-shaped design that enhances load distribution and minimizes the risk of deformation under heavy loads.

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.

SOLH AR series pilot operated pressure regulators include complete models of AR425/625/635/825/835/925/935. Adopting internal pilot relief structure, they feature high flow rate and ultra-high pressure regulation precision with hysteresis ≤0.02MPa and repeatability ≤0.01MPa. Equipped with dual pressure ranges and built-in automatic overpressure relief function, they support lubrication-free operation and arbitrary installation. Suitable for large-bore main air pipelines, high-flow equipment and precision pneumatic control systems, they are ideal stabilization solutions for factory centralized air supply systems.

SOLH VM1 (VM100) miniature 2/3 port mechanical poppet valve is fully interchangeable with equivalent SMC models. Adopting compact reliable poppet sealing structure, it features ultra-narrow 11mm width and only 60g weight for easy embedded & dense stacking installation inside machinery. Operating pressure ranges from -100kPa vacuum to 1.0MPa positive pressure, with lubrication-free design, excellent tightness and strong dust resistance. Multiple thread options including M5, Rc1/8, NPT1/8 & G1/8 are available, supporting side port and bottom port piping layout. A full series of interchangeable actuator heads are offered: standard/short plunger, straight/short/one-way anti-rebound roller lever, flat pushbutton, yellow mushroom emergency stop, green indicator button, hinge lever and lockable rotary knob, with complete NC/NO 2-port & 3-port variants. Widely applied for cylinder stroke limit detection, manual jog commissioning, safety emergency interlock, mini jig fixture air switching and vacuum trigger circuits, it acts as universal mechanical air signal trigger for compact automation equipment.

FN18-D is a general purpose, three-pole, load break switch that offers switchgear owners and assemblers the advantages of an advanced interrupting technology and proven, dependable performance in a compact design. The switch is available to switchgear assemblers as a building block for metal-enclosed and pad-mounted switchgear applications in ratings from 12-40.5 kV. The standard FN18 switch includes a heavy-duty steel frame with stand-off insulators, a unique puffer-type arc extinguishing system, an operating mechanism and current-carrying components, including blade-type interrupters with cast hinges and jaw connectors. Optional accessories and features include a variety of operating handles, a motor operator, auxiliary switches, a shunt trip device, fuse bases, mechanical fuse tripping, grounding switches, mechanical door interlocking and key interlocking. FN18 series indoor high-voltage load switch has the advantages of easy design, operation, compact structure, small volume, full function, light weight, fast breaking and closing speed and high reliability. It is suitable for AC 50Hz, rated voltage 12kV, 24kV, rated current 630A and three-phase distribution system, especially for city network construction and renovation projects, high-rise buildings, ring network power supply of public facilities, and is an ideal product for box-type substation and transformer protection.