Specifications
| Parameter | Details |
|---|---|
| Product Type | Pneumatic Fittings |
| Structure | 5 Way Reducing (Multi-Port) |
| Connection | Tube to Thread |
| Ports | 5 Ports |
| Function | Reducing + Distribution |
| Thread Type | BSPP (G) / BSPT / NPT |
| Material | Nickel-Plated Brass + Engineering Plastic |
| Seal Type | O-Ring Seal |
| Operating Fluid | Air, Vacuum |
| Working Pressure | 0 – 1.0 MPa |
| Proof Pressure | Up to 1.5 MPa |
| Temperature Range | 0 – 60°C |
| Lock Claw | Stainless Steel |
| Applicable Tubing | PU / Nylon Tube |
PKD fittings are designed as male reducing multi-branch connectors, allowing different tube sizes to be connected within one fitting while maintaining stable pressure and sealing performance.
| Model | ΦD×4 | B | E | ΦP×4 | A | R | H |
| PKD4-M5 | 4 | 61.5 | 17.5 | 11 | 3.5 | M5 | 10 |
| PKD4-01 | 4 | 65 | 17.5 | 11 | 7 | R1/8 | 10 |
| PKD4-02 | 4 | 66 | 17.5 | 11 | 8 | R1/4 | 14 |
| PKD6-M5 | 6 | 69 | 19.5 | 13 | 3.5 | M5 | 12 |
| PKD6-01 | 6 | 72.5 | 19.5 | 13 | 7 | R1/8 | 12 |
| PKD6-02 | 6 | 73.5 | 19.5 | 13 | 8 | R1/4 | 14 |
| PKD6-03 | 6 | 74.5 | 19.5 | 13 | 9 | R3/8 | 17 |
| PKD6-04 | 6 | 76 | 19.5 | 13 | 10 | R1/2 | 21 |
| PKD8-01 | 8 | 82 | 22.5 | 15 | 7 | R1/8 | 14 |
| PKD8-02 | 8 | 83 | 22.5 | 15 | 8 | R1/4 | 14 |
| PKD8-03 | 8 | 84 | 22.5 | 15 | 9 | R3/8 | 17 |
| PKD8-04 | 8 | 85.5 | 22.5 | 15 | 10 | R1/2 | 21 |
| PKD10-01 | 10 | 93 | 24.5 | 18.5 | 7 | R1/8 | 17 |
| PKD10-02 | 10 | 94 | 24.5 | 18.5 | 8 | R1/4 | 17 |
| PKD10-03 | 10 | 95 | 24.5 | 18.5 | 9 | R3/8 | 17 |
| PKD10-04 | 10 | 96.5 | 24.5 | 18.5 | 10 | R1/2 | 21 |
| PKD12-01 | 12 | 105.5 | 27.5 | 21 | 7 | R1/8 | 19 |
| PKD12-02 | 12 | 106.5 | 27.5 | 21 | 8 | R1/4 | 19 |
| PKD12-03 | 12 | 107.5 | 27.5 | 21 | 9 | R3/8 | 19 |
| PKD12-04 | 12 | 109 | 27.5 | 21 | 10 | R1/2 | 21 |
Explore Our Brass Series:
Key Features
- 5-way multi-port structure for air distribution
- Reducing function for different tube sizes
- Tube-to-thread connection
- Compact design for space-saving installation
- Nickel-plated brass for corrosion resistance
- O-ring sealing for leak-proof performance
- Push-to-connect quick installation
Applications
Pneumatic control systems
Used for distributing airflow to multiple lines with different tube sizes
Industrial automation systems
Supports complex piping layouts with mixed tube diameters
Air distribution systems
Enables centralized and flexible air routing
Machinery equipment
Reduces the number of connectors and simplifies piping
Compact pneumatic installations
Ideal for multi-branch and reducing applications
Widely used in pneumatic systems requiring multi-direction distribution and tube size conversion.
Product Function
PKD fittings distribute compressed air into multiple directions while simultaneously adapting different tube sizes.
Compared to standard 5-way fittings (PKB):
- PKB = same size distribution
- PKD = reducing + distribution (更高级功能)
This makes PKD ideal for systems where airflow needs to be split and resized at the same point.
Product Structure & Size Range
- Models: PKD6-4 / PKD8-6 / PKD10-8 / PKD12-10
- Tube sizes: 4mm → 16mm（reducing combinations）
- Thread sizes: G1/8 → G1/2
- 5-port reducing configuration
- Push-in connection on all ports
Why Choose Our Pneumatic Fittings
- Professional PKD pneumatic fitting manufacturer
- OEM / ODM customization for reducing fittings
- Reliable multi-port distribution connector
- Durable nickel plated brass construction
- O-ring sealing for stable leak-proof connection
- Fast delivery and global B2B supply capability
FAQ
Q1: What is a PKD pneumatic fitting?
It is a 5-way reducing push-to-connect fitting used for distributing air and connecting different tube sizes.
Q2: What is a reducing pneumatic fitting used for?
It allows connection between tubes of different diameters within a pneumatic system.
Q3: What is the difference between PKB and PKD fittings?
PKB distributes airflow with same-size ports, while PKD supports reducing (different tube sizes).
Q4: Does PKD include an O-ring seal?
Yes, it uses an O-ring sealing system for reliable airtight performance.
Q5: What tubing is compatible with PKD fittings?
It is suitable for PU tubing and nylon tubing.
Q6: Can PKD fittings be customized?
Yes, OEM and ODM customization is available.
CTA
Looking for reliable PKD 5-way reducing push-to-connect pneumatic fittings?
Contact us today for OEM/ODM solutions, bulk pricing, and fast delivery.
