Pneumatic and Electronic Controls - Numatics

Directional control valves route compressed air to cylinders and actuators, controlling when and which way they move. They're the core of any pneumatic control circuit.

Valve Types

• 2/2, 3/2, 5/2 and 5/3 valves – match circuit needs
• Solenoid-operated valves – electrical control
• Manual and mechanical valves – lever, button and cam operation
• Manifold-mount valves – compact valve banks
• Fieldbus valve terminals – networked control

Choosing a Valve

Size the valve flow (Cv) to the cylinder bore and speed. Choose function, actuation, voltage and port size. Manifolds simplify plumbing.

Centro supplies directional control valves for pneumatic automation.

Related categories: Pneumatic Directional Control Valves | Solenoid Coils | Regulators | Special Purpose Valves | Manifold Assembly Kit

Directional control valve parts and kits restore valve performance without full replacement. Seals, spools, solenoid coils and operators wear with use.

Parts Available

• Seal and repair kits – restore sealing
• Solenoid coils – replace failed coils
• Manual operators – overrides and actuators
• Sub-base gaskets – leak-free mounting
• Connectors – DIN and M12 plugs

Ordering Parts

Have the valve model and series ready. Coil voltage and connector type must match.

Centro supplies valve parts and repair kits.

Related categories: Pneumatic Directional Control Valves | Ceram Valves | ISO Valves | Special Purpose Valves | Solenoid Coils

Regulators used with directional control valves set the pressure going to individual actuators or valve stations. This lets each cylinder run at the force it needs while sharing one air supply.

Regulator Options

• Manifold-mount regulators – sandwich between valve and base
• Inline regulators – adjust pressure at the actuator
• Dual pressure regulators – different pressures for extend and retract
• Gauges and locking knobs – monitor and secure settings

Choosing a Regulator

Match to your valve series and port size, then choose pressure range and flow. Lower pressures save air and reduce wear.

Centro supplies regulators for pneumatic valve systems.

Related categories: Pneumatic Directional Control Valves | Directional Control Valves | Manifold Assembly Kit | Solenoid Coils | Special Purpose Valves

Pneumatic fittings are essential components used to connect and secure pneumatic systems, enabling the efficient transfer and control of compressed air. These fittings provide a leak-free and reliable connection between pneumatic components such as hoses, pipes, valves, and actuators. They come in various types, including push-in fittings, quick-connect couplings, threaded fittings, and barbed fittings, offering versatility and compatibility with different system requirements. Pneumatic fittings are designed to withstand high pressures, vibrations, and temperature variations commonly found in pneumatic applications. With their easy installation and disassembly capabilities, pneumatic fittings enable quick and hassle-free maintenance or reconfiguration of pneumatic systems, ensuring smooth and efficient operation.

Shop by type: Flow Control Fittings | Push-Connect Fittings | Quick Connect Fittings

Related categories: Pneumatic Accessories | Tubing | Check Valves and Flow Valves | Air Volume Tanks | In-Line Filters

Rotary actuators turn air or electric power into rotation for turning, indexing, flipping and operating valves. They're common in automation for rotating parts, opening gates and positioning tools.

Rotary Actuator Types

• Rack and pinion – precise angles and high torque
• Vane actuators – compact and lightweight
• Rotary tables – handle offset loads
• Electric rotary actuators – programmable positions

Choosing an Actuator

Calculate torque from load and inertia, select rotation angle and consider cushioning for smooth stops. Position sensors confirm end points.

Centro supplies rotary actuators for automation and valve control.

Related categories: Pneumatic Cylinders and Actuators | Linear Cylinders | Pneumatic Cylinder | Clamps | Electric Linear Actuator

Guided cylinders combine a pneumatic cylinder with integrated guide rods, resisting side loads and rotation. They're ideal for lifting, pushing and stopping where precision matters.

Features

• Integrated guides – handle side and moment loads
• Anti-rotation – precise tool orientation
• Ball and plain bearings – accuracy or durability
• Compact design – replace cylinder plus external guides

Choosing a Cylinder

Select by load, stroke, moments and accuracy. Position sensors confirm movement.

Centro supplies guided cylinders for automation.

Related categories: Pneumatic Cylinders and Actuators | Round Body Cylinders | Compact and Short Stroke | High Force Actuators | Air Bellows

ISO valves follow international standards (ISO 5599) for mounting dimensions, so valves from different manufacturers can be swapped. They're common in industrial automation and machine building.

Features

• Standard mounting interface – interchangeability
• Size 1, 2 and 3 – range of flow capacities
• Sub-base and manifold mounting – flexible installation
• Solenoid and pilot operation – control options

Choosing an ISO Valve

Select size for flow, function (5/2, 5/3) and voltage. ISO valves simplify replacement and spare parts.

Centro supplies ISO valves and sub-bases.

Related categories: Pneumatic Directional Control Valves | Ceram Valves | Special Purpose Valves | Valves Parts and Kits | Solenoid Coils

Manifold assembly kits contain everything you need to build a bank of pneumatic directional control valves on a common manifold. Mounting valves together saves space, simplifies air supply and exhaust piping, and makes valve banks easier to service.

What's in a Kit

• Manifold bases and sub-plates – supply air to multiple valve stations
• End plates and seals – close off the manifold and route supply and exhaust
• Tie rods and mounting hardware – hold the assembly together
• Blanking plates – reserve stations for future valves
• Isolation and pressure plugs – create separate pressure zones on one manifold

Ordering Tips

Kits are specific to a valve series, so start with the valve model number and the number of stations you need. Plan for one or two spare stations so the bank can grow later. For electrically wired manifolds, check the connection style: individual wiring, multi-pin or fieldbus.

Centro can help you configure the right manifold kit for your valves and confirm part numbers before you order.

Related categories: Pneumatic Directional Control Valves | Regulators | Directional Control Valves | Solenoid Coils | Special Purpose Valves

Pneumatic tubing is a flexible and durable material that transports compressed air in pneumatic systems. It is designed to withstand the high pressures and dynamic forces of pneumatic applications. Pneumatic tubing is typically made from polyurethane, nylon, or PVC, offering excellent resistance to abrasion, chemicals, and UV radiation. It comes in various sizes and configurations, including different diameters and wall thicknesses, to accommodate different flow requirements. Pneumatic tubing is easy to cut, bend, and route, allowing for efficient installation and customization. With its reliable performance and flexibility, pneumatic tubing ensures the smooth and efficient transfer of compressed air, contributing to the optimal operation of pneumatic systems.

Related categories: Pneumatic Accessories | Air Volume Tanks | Pneumatic Fittings | Air Valve Switches | Check Valves and Flow Valves

Swing clamps are pneumatic or hydraulic clamps widely used in various industrial applications for secure and efficient workpiece clamping. These clamps are designed with a swinging arm mechanism that allows them to rotate or swing into position for clamping and release. Swing clamps offer versatility in their operation as they can be mounted in different orientations, such as vertically, horizontally, or at an angle, to accommodate diverse workpiece configurations. They provide a solid clamping force, enabling reliable holding and stability during machining, assembly, or welding. Swing clamps are particularly favored for their fast and precise clamping action, which reduces cycle times and enhances productivity. They are commonly utilized in automotive manufacturing, aerospace, machining centers, and assembly lines, where quick and efficient clamping is required. With their flexibility, robust construction, and reliable performance, swing clamps are crucial in improving workpiece handling, productivity, and overall operational efficiency in industrial settings.

Related categories: Clamps | Clamping Elements | Power Clamps

Seals and repair kits are indispensable for various mechanical systems and equipment maintenance and repair operations. Seals, which come in a wide range of materials and designs, are critical for preventing leaks and maintaining the integrity of hydraulic, pneumatic, and mechanical systems. These seals effectively block the escape of fluids, such as oil or gas, and play a vital role in ensuring system efficiency and longevity. Repair kits are curated collections of replacement parts, including seals, gaskets, O-rings, and other essential components. They are designed to simplify the repair and maintenance process by providing all the necessary parts in one package, facilitating quick and cost-effective fixes. Whether it's a hydraulic system in heavy machinery or a simple household appliance, seals and repair kits are crucial for ensuring the reliability and longevity of mechanical systems by preventing leaks and facilitating efficient repairs.

Related categories: Pneumatic Cylinders and Actuators | Rodless Cylinders | NFPA Cylinders | Air Bellows | Clamps

Electrical connectors make secure, serviceable connections for power, signal and data. Quality connectors reduce failures and make equipment faster to install and maintain.

Connector Types

• Terminal blocks – DIN rail wiring
• Heavy-duty industrial connectors – modular power and signal
• Circular connectors – M8, M12 and M23
• Pin-and-sleeve devices – portable power
• Wire connectors and lugs – splices and terminations

Choosing Connectors

Match current, voltage, wire size and environment. Choose IP-rated connectors for washdown and outdoor use. Coding prevents wrong connections.

Centro supplies connectors for panels and machines.

Related categories: Electrical Accessories | Networking | Thermal Management | Drag Chains | Control Lighting

Pneumatic directional control valves are pivotal components within pneumatic systems, responsible for determining the path of compressed air flow and subsequently controlling the movement of actuators. These valves govern the direction in which air travels, enabling the activation and deactivation of pneumatic cylinders or other actuators that perform mechanical tasks. With the ability to switch between multiple ports, pneumatic directional control valves facilitate intricate automation processes, allowing machinery to execute precise movements and sequences. Whether in manufacturing lines, robotics, or other industrial settings, these valves are indispensable for achieving efficient and accurate motion control, contributing to enhanced productivity and streamlined operations.

Shop by type: Manifold Assembly Kit | Regulators | Directional Control Valves | Solenoid Coils | Special Purpose Valves | ISO Valves | Ceram Valves | Valves Parts and Kits

Related categories: Pneumatic and Electronic Controls | HMIs | Electric Power Tools | Pneumatic Check Valves | Pneumatic Accessories

Pneumatic slides are essential mechanical components used in various industrial and automation applications. These devices harness compressed air to facilitate controlled linear motion, allowing objects or tools to rapidly move back and forth. Pneumatic slides are designed to be versatile and adaptable, making them suitable for tasks such as material handling, assembly, and positioning in manufacturing and automation processes. They are often equipped with features like adjustable stroke length, speed control, and robust construction to withstand demanding operating conditions. Pneumatic slides contribute to increased efficiency, repeatability, and accuracy in various industries, making them valuable for achieving streamlined and reliable mechanical motion in automated systems.

Related categories: Pneumatic Cylinders and Actuators | Cylinder Accessories | Mounting | Specialty Cylinders | High Force Actuators

Air bellows are rubber actuators that expand under air pressure to lift, press, clamp or isolate vibration. They have no seals or rods, so they're nearly maintenance-free and tolerate misalignment.

Features

• High force in compact height – lifting and pressing
• No internal parts – low maintenance
• Tolerate side loads – flexible mounting
• Vibration isolation – protect equipment
• Single, double and triple convolution – stroke options

Choosing Air Bellows

Select by force, stroke and available height. Use mechanical stops to limit travel.

Centro supplies air bellows for actuation and isolation.

Related categories: Pneumatic Cylinders and Actuators | Compact and Short Stroke | Rodless Cylinders | Guided Cylinders | Seal and Repair Kits

Pneumatic accessories connect, protect and fine-tune compressed air systems. Fittings, tubing, check valves, flow controls and filters may be small parts, but they have a big effect on machine performance, air consumption and reliability.

Pneumatic Accessories

• Pneumatic fittings and tubing – push-to-connect, compression and barbed
• Check and flow control valves – control direction and speed
• In-line filters – point-of-use protection for valves and actuators
• Air volume tanks – supply surges for high-demand cycles
• Air valve switches and relief valves – sensing and overpressure protection

Choosing Accessories

Match tube size and material (polyurethane, nylon, PTFE) to pressure, flexibility and chemical exposure. Use flow controls to set cylinder speed. Fixing small leaks in fittings and tubing is one of the easiest ways to cut compressed air costs.

Centro carries pneumatic accessories to build, maintain and improve air systems.

Shop by type: In-Line Filters | Check Valves and Flow Valves | Pneumatic Fittings | Tubing | Air Volume Tanks | Air Valve Switches | Pneumatic Relief Valves | Tubing Components

Related categories: Pneumatic and Electronic Controls | Software | Pneumatic Check Valves | Pneumatic Cylinders and Actuators | Electric Power Tools

Mufflers, silencers and speed controls fine-tune pneumatic systems by cutting exhaust noise and setting actuator speed.

Products Available

• Sintered bronze mufflers – compact exhaust silencing
• Plastic silencers – high noise reduction
• Speed control mufflers – adjust exhaust flow
• Inline flow controls – meter in or out
• Banjo flow controls – mount at cylinder ports

Choosing Products

Match thread and flow size, and use meter-out speed control for most cylinder applications.

Centro supplies mufflers, silencers and speed controls.

Related categories: Pneumatic Accessories | Shutoff Valves | Exhaust Valves | Tubing Components | Pneumatic Relief Valves

Check and flow valves optimized for pneumatics are indispensable components within pneumatic systems, ensuring controlled and efficient fluid movement in various applications. Check valves permit air flow in one direction while preventing backflow maintaining pressure and system integrity. Flow control valves regulate the rate of airflow, enabling precise adjustments to pneumatic actuator speed and force. Engineered for accuracy and reliability, these valves are crucial in industries like automation, manufacturing, and robotics. Check and flow valves tailored for pneumatics contribute significantly to smooth operation, preventing pressure loss, and optimizing system performance. With diverse sizes and configurations, these valves offer tailored solutions for achieving precise and efficient pneumatic control in various industrial settings.

Related categories: Pneumatic Accessories | Pneumatic Fittings | In-Line Filters | Tubing | Air Volume Tanks

Shutoff valves isolate air supply to machines and pneumatic circuits for maintenance and safety. Lockable valves support lockout/tagout procedures.

Shutoff Valve Types

• Ball valves – quick quarter-turn shutoff
• Lockout valves – exhaust downstream air
• Soft-start dump valves – safe pressurization
• Slide valves – compact shutoff

Choosing a Valve

Select port size and flow, and use lockable exhausting valves for machine safety.

Centro supplies pneumatic shutoff valves.

Related categories: Pneumatic Accessories | Mufflers, Silencers, and Speed Controls | Exhaust Valves | Tubing Components | Pneumatic Relief Valves

Exhaust valves quickly vent air from cylinders and pneumatic systems. They speed up cylinder return, allow safe depressurization and support safety circuits.

Exhaust Valve Types

• Quick exhaust valves – faster cylinder movement
• Safety exhaust valves – depressurize on emergency stop
• Lockout exhaust valves – maintenance isolation
• Silenced exhaust – reduce noise

Choosing a Valve

Select port size and flow for the cylinder or system. Mount quick exhaust valves close to the cylinder.

Centro supplies pneumatic exhaust valves.

Related categories: Pneumatic Accessories | Mufflers, Silencers, and Speed Controls | Tubing Components | Shutoff Valves | Pneumatic Relief Valves

Cylinder and actuator mounts attach pneumatic cylinders securely to machines in the right orientation. The right mount prevents side loading and extends cylinder life.

Mount Types

• Clevis and pivot mounts – allow angular movement
• Foot and flange mounts – fixed mounting
• Trunnion mounts – pivot at cylinder center
• Rod clevises and eyes – connect to loads
• Alignment couplers – compensate misalignment

Choosing Mounts

Match mounts to cylinder standard (ISO, NFPA) and bore size. Use pivot mounts where the load moves in an arc.

Centro supplies cylinder mounts and accessories.

Related categories: Pneumatic Cylinders and Actuators | Pneumatic Slides | High Force Actuators | Cylinder Accessories | Round Body Cylinders

Flow control valves are essential devices used in fluid control systems to regulate the flow rate within a pipeline or system. These valves allow for precise adjustment of flow rates, ensuring optimal performance and efficiency. By controlling the opening or closing of the valve or by using throttling mechanisms, flow control valves can increase or decrease the flow rate as desired. This enables operators to maintain stable flow conditions, prevent fluid overload, and achieve accurate flow control for various applications. Flow control valves are commonly used in manufacturing, oil and gas, water treatment, and HVAC systems, where precise flow management is critical for operational success.

Related categories: Valves | Fuel, Gas, and Oil Valves | Directional Control Valves | Butterfly Valves | Valve Positioners

Ceram valves are directional control valves engineered for automation that exemplify the fusion of advanced ceramics and precise engineering in fluid control systems. These valves are purpose-built to excel in automated processes, offering unparalleled precision and reliability in regulating fluid flow and actuator movement. With remarkable corrosion resistance, wear resistance, and thermal stability, Ceram directional control valves thrive even in demanding industrial environments. They play a pivotal role in manufacturing, robotics, and automotive industries, where accuracy and dependability are paramount. By harnessing cutting-edge ceramics, Ceram directional control valves provide a robust solution for achieving efficient and accurate fluid control within automated systems, contributing significantly to enhanced productivity and seamless operations.

Related categories: Pneumatic Directional Control Valves | Valves Parts and Kits | ISO Valves | Special Purpose Valves | Solenoid Coils

Pneumatic cylinders and actuators are used in a variety of industrial applications. Pneumatic cylinders and actuators use compressed air to create a force in a linear or rotary motion. Pneumatic cylinders come in various sizes and shapes and can be used for many different applications. Pneumatic cylinders and actuators are an essential part of many industries, and we are proud to offer our customers a wide selection of products. We carry a complete selection of pneumatic cylinders and actuators, including rotary actuators and linear cylinders. Our pneumatic cylinders and actuators are available in various sizes and configurations, making it easy to find the perfect product for your application. Please browse our website or contact us today to learn more about our pneumatic cylinder and actuator offerings.

Shop by type: Electric Linear Actuator | Pneumatic Cylinder | Rotary Actuators | Linear Cylinders | Clamps | NFPA Cylinders | Seal and Repair Kits | Rodless Cylinders

Related categories: Pneumatic and Electronic Controls | Enclosures | Software | Motor Control | Pneumatic Accessories