China air pressure holding lock valve Manufacturer, Supplier, Factory

SOLH VEX1133 high-flow precision relief regulator adopts combined nozzle-flapper pilot and balanced poppet structure. Compact in size yet with strong supply & exhaust capacity, it realizes ultra-fast pressure stabilization with negligible overshoot under sudden load changes and large downstream volume. It delivers ultra-high control precision with sensitivity ≤0.2% FS and repeatability ≤±0.5% FS, fully meeting micron-level positioning and constant force/tension process standards. Built-in overflow relief automatically discharges excess pressure inside closed air chambers to maintain stable set pressure without drift. Featuring friction-free internal components, lubrication-free and anti-contamination design, it allows arbitrary-angle mounting and supports standalone or manifold stacked assembly. Widely applied to film & wire tension control, pneumatic balancers, precision press-fit machinery and laboratory test bench constant pressure systems.

FKN12-12D series air-blast Ioad break switch and FKRN12-12D series air-blast load break switch-fuse combination apparatus are new series switchgear applies to three-phase electric distribution system of rated 12kV, acting as protecting and control apparatus for transformers, cable and overhead wiring. These series are especially applicable in rural, urban terminal substation and prefabricated substations, as well as ring network power supply. FKN12-12D can break and make Ioad current and over-current. FKRN12-12D can break and make over-current load current and short-circuit current(Iimited current fuse). This product is featured with impact structure aesthetic appearance. reliable interlock and high insulating level. In the spring storage operation mechanism, ON/OFF speed is free from the influence of the manpower. For the arc-extinguish, electric arc-extinguish inside the insulating cover, the free gas occurs at sparking do not cause descend of insulating level between phases and phase to earth. The insulation cover clapboard separates electrified part thus boost protection grade of ring main unit. The copper-tungsten contact and main contact brings along reliable conductivity and long life. This product achieves sound fame due to easy maintenance and operation as well as reliable performance. It is in compliance with IEC62271-105.

SOLH VH series 4-way 90° manual rotary hand valve switches air circuits by rotating handle, with three optional center functions: 3-position center closed, 3-position center exhaust and 2-position type. Adopting precision rotary spool seal for ultra-low internal leakage, it features zinc alloy / die-cast aluminum body and lubrication-free long service life, with built-in mechanical position lock to avoid accidental operation. It supports side port and bottom port piping layout, available for panel flush mounting or direct body fixing, with port sizes from Rc1/4" to 1" and max operating pressure 0.7~1.0MPa. Center closed version keeps cylinder clamping pressure during shutdown, while center exhaust fully releases pressure for safe maintenance. Widely used for manual cylinder reversing, equipment commissioning venting, emergency air source isolation, semi-automatic machine manual operation and pneumatic teaching test benches.

Micro Switch for Switchgear are critical components in electrical switchgear systems, designed to support and isolate high-voltage conductors while ensuring operational safety and efficiency. These insulators are typically made from high-quality materials such as porcelain or polymer, offering excellent dielectric properties and mechanical strength. Their robust design allows them to withstand extreme environmental conditions, including temperature fluctuations, humidity, and pollution, making them suitable for both indoor and outdoor applications.

Switchgear rollover control panel frame At Richge, we deliver top-quality switchgear solutions, including our advanced rollover control panel frames. Designed for durability and ease of use, our frames ensure optimal support and protection for switchgear systems. Engineered with precision, they enhance safety and operational efficiency, meeting the highest industry standards. Trust us for reliable, high-performance switchgear components.

SOLH HFR pivot-linkage 180° wide-opening pneumatic gripper is driven by piston linkage to rotate jaws. Each jaw swings up to 90°, forming a straight line when fully opened to provide maximum clearance and eliminate mechanical interference during pick-and-place. Bore sizes cover 10/16/20/25/32 mm with purely double acting design. The -2°~-5° overclose angle ensures stable clamping. Three mounting surfaces (side, bottom, rear) are available; locating pin holes on the base improve assembly accuracy, and suffix-N through-hole mounting is optional. All models come with built-in permanent magnets and sensor grooves compatible with CMSH magnetic switches. Optimized dust-proof jaw structure and anti-friction metal separators deliver service life over 5 million cycles for moderately dusty workshop environments. Widely used for gripping and turnover of deep-cavity workpieces, large plastic housings and box materials. MHW2 gear-driven swing gripper can be considered for medium-load applications if extreme avoidance clearance is unnecessary. A minimum 30% safety margin must be reserved during torque calculation; extended jaw overhang greatly reduces effective clamping torque.