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The Fixed Orifice Joint is a push-in fitting designed to precisely control air flow in pneumatic systems. It features a fixed orifice that restricts the passage of air, ensuring consistent and reliable flow rates for applications requiring regulated airflow, such as in automated controls or pressure-sensitive devices.
The joint's main resin components are made from PBT (polybutylene terephthalate), a durable and environmentally stable material suitable for general use environments. The primary metal parts are constructed from brass with an electroless nickel plating, providing corrosion resistance and long-term mechanical integrity. The sealing element is composed of NBR (nitrile rubber), which offers effective sealing under typical conditions but has limited ozone resistance.
The joint features a push-in fitting design that allows for quick and secure assembly. Available in multiple connection types including M5x0.8 metric male thread (in mini type fittings) and R1/8 taper pipe male thread, as well as UNF 10-32UNF and NPT1/8 threads, enabling compatibility with a range of piping systems and equipment.
The joint is rated for operation with air as the fluid medium. It can withstand a maximum operating pressure of 1.0MPa and a maximum vacuum of -100kPa. The operating temperature range is from 0°C to 60°C, ensuring performance in standard ambient conditions without risk of freezing or thermal degradation.
Available in three standard sizes: φ4mm, φ6mm, and φ8mm (equivalent to φ5/32 inch, φ1/4 inch respectively). Orifice bore options are selectable from φ0.1mm to φ2.0mm in 0.1mm increments, allowing precise flow control based on application requirements. The mini type fitting includes an M5x0.8 thread for compact piping solutions.
Installation is supported through standard threaded interfaces including metric M5x0.8 (mini type), R1/8 taper pipe, UNF 10-32UNF, and NPT1/8 threads. The P-set series design includes features to prevent unintended operation, ensuring safe and reliable deployment in automated or safety-critical systems.
| Specification | Details |
|---|---|
| Fluid medium | Air |
| Max. operating pressure | 1.0MPa |
| Max. vacuum | -100kPa |
| Operating temp. range | 0 to 60℃ (No freezing) |
| mm size (mm) | φ4, φ6, φ8 |
| inch size | φ5/32, φ1/4 |
| Metric male thread | M5x0.8 |
| Taper pipe male thread | R1/8 |
| UNF Thread | 10-32UNF |
| NPT Thread | NPT1/8 |
| Main resin material | PBT |
| Main metal material | Brass with electroless nickel plating |
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