Ningbo Richge Technology Co., Ltd.
Ningbo Richge Technology Co., Ltd.
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China compressed air pre-filter for air source treatment Manufacturer, Supplier, Factory

We believe that long expression partnership is often a result of top of the range, value added service, prosperous encounter and personal contact for compressed air pre-filter for air source treatment, AF series pneumatic air filter, industrial water and dust air filter, 5μm precision pneumatic filter, manual / auto drain air filter, Are you still on the lookout for a good quality product that is in accordance together with your very good organization image while expanding your item range? Consider our quality merchandise. Your choice will prove to be intelligent!
compressed air pre-filter for air source treatment, The credibility is the priority, and the service is the vitality. We promise we now have the ability to supply excellent quality and reasonable price products and solutions for customers. With us, your safety is guaranteed.

Hot Products

  • Switchgear Copper Connector Bar

    Switchgear Copper Connector Bar

    Switchgear Copper Connector Bar – Product Details and Applications The Switchgear Copper Connector Bar is a critical component used in electrical switchgear systems, ensuring the efficient and reliable flow of electrical current between different conductors. Made from high-quality copper, this connector bar offers superior electrical conductivity and low resistivity, minimizing energy loss during power transmission. The copper material also provides excellent thermal performance, which is crucial for high-current applications. Additionally, the connector bar is often coated with a protective layer such as tin or silver plating to enhance corrosion resistance, ensuring long-term durability in harsh operating environments. These bars come in various shapes and dimensions, including flat bars, U-shaped, and T-shaped designs, to accommodate different connection needs in switchgear panels. They are customizable to match specific system layouts, with pre-drilled holes or slots for easy mounting. Some models may feature insulation covers to enhance safety, especially in medium- and high-voltage switchgear systems.
  • 4H Series Hane Lever Valve | 5/2 & 5/3 Way

    4H Series Hane Lever Valve | 5/2 & 5/3 Way

    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.
  • Electrical control panel indicator sign

    Electrical control panel indicator sign

    The Electrical Panel Indicator is a vital component in industrial and commercial electrical panels, designed to provide clear, real-time visual indications of operational status. Constructed from high-quality, durable materials, this indicator is built to withstand harsh environmental conditions and ensure long-term reliability.
  • 35KV Shutter mechanism

    35KV Shutter mechanism

    The 35kV Shutter Mechanism from Ruiziger Technologies is a safety device for use in 35 (kV) electrical equipment. Its main role is to shield or isolate the electrical parts during the operation of the equipment by mechanical or electrical means to ensure that the operator will not come into contact with the live part during the operation of the equipment, to ensure the safety of personnel and to prevent electrical accidents.
  • HRQ Series Rotary Cylinder

    HRQ Series Rotary Cylinder

    SOLH HRQ dual piston rack & pinion rotary cylinder includes micro sizes HRQ2/3/7 and medium-to-large HRQ10~HRQ200 with infinitely adjustable swing angle 0~190°. It outputs higher torque and stronger bending/radial load capacity than vane rotary actuators. Three configurations are available: basic mechanical stop buffer (low-cost for light low-speed duty), -A integrated hydraulic shock absorber (high-speed heavy load precise stopping), and -A(S) hydraulic version with stainless steel end caps for humid & slightly corrosive environments. The rotary table features central hollow through hole for tubing and wiring, and side sensor slots compatible with universal magnetic reed switches. Micro models adopt bottom mounting holes while medium/large sizes provide multi-side mounting taps for flexible layout. Pre-filled long-life grease enables lubrication-free operation. Selection requires simultaneous verification of torque, radial/axial load and bending moment. Widely used for rotary indexing in automatic assembly, material sorting, packaging capping and jig turnover stations.
  • Switchgear Aluminum Alloy Guide Rail

    Switchgear Aluminum Alloy Guide Rail

    Product Details and Application of Switchgear Aluminum Guide Rail The Switchgear Aluminum Guide Rail is a critical component designed for the efficient operation and support of switchgear systems. Constructed from high-quality aluminum, this guide rail offers exceptional strength while remaining lightweight, facilitating easy installation and maintenance. Its corrosion-resistant properties ensure durability, making it suitable for various environments, including industrial settings and outdoor applications.

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