Air Regulators & Filters
Air Filter Regulator Unit | G1/4 Female Ports | Integrated Flow Control
TBS-02407HYDR-00056
£16.99
Compressed Air
90 products available
A compressed air system provides reliable motive power and process air to manufacturing lines, spray bays, and production workshops. Maintaining steady line pressure and dry air requires the right compressed air equipment between your receiver tank and tool couplings. Compel supplies trade-grade compressed air supplies to plant operators, contractors, and maintenance teams worldwide.
Our inventory covers air regulators and filters, pressure switches, and replacement compressor hardware. Choose from standard modular filter-regulator-lubricator (FRL) assemblies, multi-port manifold switches, and brass safety check valves built for continuous duty cycles. We ship standard BSP and NPT threaded components directly from industrial stock, keeping your workshop compressed air lines online with zero downtime.
90 products in Compressed Air
Air Regulators & Filters
Air Compressor Filter Regulator | G1/2 & G3/4 Ports | Oil-Water Separator with Manual Drain
TBS-02408HYDR-00057
£19.99
Air Regulators & Filters
Air Compressor Filter & Regulator | AFC2000 Series | G1/4 Port | Oil & Water Separator
TBS-02424HYDR-00072
£24.99
Pressure Switches
Professional Air Pressure Switch | 0.02-1MPa Adjustable Range | NO/NC Control for Compressors & Hydraulic Systems
TBS-02430HYDR-00078
£11.99
Pressure Switches
Pneumatic Pressure Switch | QPM11-NO Adjustable Diaphragm | Air Compressor Control
TBS-02431HYDR-00079
£15.99
Air Regulators & Filters
Air Compressor Filter | 1/4 NPT Oil-Water Separator for Clean, Dry Air
TBS-00023ACCS-00003
£19.99
Showing page 4 of 4 (90 products)
Selecting Air Regulators, Traps, and FRL Combinations
Downstream pneumatic tools require clean, pressure-controlled air to prevent internal seal wear and finish defects. Point-of-use units like the AFR2000 regulate working pressures between 0.05 and 0.85 MPa while stripping line moisture. For multi-stage conditioning, paired AFC2000 units integrate an air filter, pressure regulator, and lubricator into one rail.
Match the air preparation component to your specific application rather than using a single line setup for the entire shop.
- Port threading: Most localized drops use G 1/4, G 3/8, or 1/4-inch NPT fittings to match standard tool hoses.
- Filtration media: Standard AF2000 units use copper core elements to separate oil and water condensate. Dedicated mainline line dryers such as 015 QPSC models offer fine 0.01 µm filtration at flow rates up to 1.5 m³/min.
- Tool requirements: Keep lubricated lines strictly separated from spray gun circuits, which require dry, oil-free regulation.
Configuring Pressure Switches and Manifold Regulators
The pressure switch automates compressor cycling to maintain safe tank pressure bands. Standard workshop switches operate across a 90 to 120 PSI (6.2 to 8.3 bar) pressure range. They trigger motor start when pressure drops to the lower threshold and cut power when the tank reaches peak pressure.
Multi-port manifold assemblies simplify compressor head plumbing. A 4-way 1/4-inch NPT manifold allows direct mounting of tank pressure gauges, an unloader valve, a safety relief valve, and delivery outlets on one compact cast block. Verify the maximum pressure ceiling matches your pump; industrial manifold switches regularly handle up to 175 PSI (12 bar).
Specifying Tank Hardware and Safety Relief Valves
Reliable compressor maintenance depends on properly rated physical valves. A 3-port brass check valve prevents pressurized tank air from bleeding back into the compressor pump head once the motor stops. Standard configurations feature 20 x 16 x 10 mm male threads with an integrated port for the unloader exhaust line.
Never run an air tank without a calibrated relief valve. Our 1/4-inch NPT male brass safety valves discharge tank overpressure between 125 and 200 PSI (8.6 to 13.8 bar). Zinc alloy and brass replacement parts ensure corrosion resistance on both lubricated and mute oil-free compressor tanks.
Buying guide
Choosing Compressed Air
- What pressure range do standard air compressor switches use?
- Most standard workshop compressor pressure switches operate on a factory-set band between 90 and 120 PSI (6.2 to 8.3 bar). Industrial 4-port manifold switch assemblies handle upper operating pressures up to 175 PSI (12 bar). Always set your switch within the rated design limits stamped on your air receiver tank.
- How do I identify the correct port thread for my air line fittings?
- Compel supplies compressed air equipment with both G (BSPP parallel) and NPT (tapered) threads, most commonly in 1/4-inch, 3/8-inch, and 3/4-inch sizes. Parallel G threads rely on an O-ring or flat face washer to seal, while tapered NPT threads seal across the thread flanks. Do not thread NPT male fittings into parallel G ports without an adapter, as this damages the casting.
- When should I install an FRL lubricator instead of a plain filter regulator?
- Install an FRL assembly like the AFC2000 when driving air tools, impact guns, or pneumatic cylinders that need continuous oil mist lubrication. Do not install lubricators on air drops meant for spray guns, tire inflation, or surface blow-off guns. Those use cases require dedicated dry air lines equipped with an oil-water separator trap.
- What safety valve pressure rating do I need for an air receiver tank?
- The safety valve relief threshold must be set above the normal cut-out pressure of the switch but at or below the maximum working pressure rating of the air tank. Compel carries 1/4-inch NPT brass safety valves covering 125 to 200 PSI (8.6 to 13.8 bar). Check the tank certification plate to confirm the relief pressure threshold before installation.
- How do you clean and maintain a copper core filter element?
- Isolate line pressure, depressurize the bowl, and unscrew the filter housing on units like the AF2000. Remove the sintered copper core, wash away accumulated oil and grime using a mild solvent, and blow the pores clear from inside out using low-pressure dry air. Replace the filter element if you notice persistent line pressure drops across the regulator.