PP Threaded Socket
Technical Specification
- Material: Polypropylene block copolymer (PP-B)
- Fitting type: Threaded socket
- Thread standard: To suit BS 4991:1974
- Pressure rating: 6 bar
- Operating temperature range: -20°C to 110°C (continuous)
- Size range: 1/2" to 4"
- Colour: Beige grey (RAL 7032)
- Manufacturing standard: DIN 16962
Description
This polypropylene threaded socket is designed to connect PP pipework to threaded components within pressure-rated systems where a demountable joint is required. Featuring two threaded outlets, it provides a practical interface between threaded valves, fittings or equipment.
Manufactured from high heat stabilised polypropylene block copolymer (PP-B), the fitting offers excellent resistance to chemicals, corrosion and mechanical wear. The threaded connection allows straightforward installation and future disassembly, making it particularly useful where components may need to be replaced or adjusted.
Due to the nature of threaded joints, this fitting is pressure rated to 6 bar, making it suitable for low to medium pressure applications where flexibility and serviceability are more important than permanent fusion joints.
Key Features & Benefits
- 6 bar pressure rating: Suitable for threaded polypropylene connections up to 4"
- Threaded outlets: Allows connection to threaded valves, fittings and equipment
- PP-B construction: Enhanced impact resistance, including at sub-zero temperatures
- Wide temperature capability: Reliable performance from -20°C to 110°C in continuous service
- Corrosion resistant: Will not rust, scale or degrade in aggressive environments
- Lightweight fitting: Easier handling and installation compared to metal alternatives
- Industrial suitability: Commonly used in chemical processing, water treatment, laboratories, food production and general industrial pipe systems


| Product Code | d (inch | D (mm) | I (mm) | Z (mm) | Pressure Rating (bar) |
| 355838 | ½ | 27 | 38 | 4 | 6 |
| 355839 | ¾ | 34 | 42 | 4 | 6 |
| 355840 | 1 | 48 | 50 | 4 | 6 |
| 355841 | 1 ½ | 61 | 53 | 3 | 6 |
| 355842 | 2 | 77 | 61 | 3 | 6 |
| 355843 | 3 | 110 | 81 | 5 | 6 |
| 355844 | 4 | 134 | 96 | 6 | 6 |
