PPb Pipe Inch

Our PPb (Polypropylene block copolymer) pipe in imperial sizes is specifically designed for demanding industrial environments where high temperatures, aggressive chemicals and long-term reliability are critical. Manufactured from high-grade polypropylene and produced in accordance with BS 4991 : 1974, this pipe system offers outstanding chemical resistance, excellent mechanical strength and dependable performance across a wide range of process applications.

Polypropylene is a proven thermoplastic polymer widely used in industrial pipework thanks to its excellent resistance to chemicals, abrasion and impact, combined with a favourable strength-to-weight ratio. These properties make PPb pipe an ideal solution for conveying hazardous or corrosive media safely, even at elevated temperatures, without compromising system integrity.

• Material: Polypropylene (PPb)
• Temperature range: -20°C to 120°C
• Pressure ratings: Available from 3 bar up to 15 bar (class dependent)
• Standards: Manufactured in accordance with BS 4991 : 1974
• Bore finish: Smooth internal bore for low friction losses
• Flow performance: Reduced pressure drop and high volume flow rates
• Chemical resistance: Excellent resistance to a wide range of acids, alkalis and aggressive process fluids
• Durability: High resistance to abrasion and long service life in industrial conditions

The smooth internal surface of polypropylene pipework helps minimise friction losses, improving flow efficiency while reducing the risk of build-up or fouling within the system. This makes PPb pipe particularly well-suited to continuous-flow and high-throughput process lines.

Our imperial PPb pipe system is suitable for a broad range of industrial and specialist applications, including:

• Acid transportation
• Alkali transportation
• Chemical processing and chemical dosing systems
• Industrial waste and effluent treatment
• Pharmaceutical manufacturing
• Biotechnology facilities
• Hospitals and laboratory installations
• Water treatment plants
• Brewing and distilling processes
• Electronics manufacturing
• Food and beverage processing
• Nuclear and high-specification industrial environments

Thanks to its ability to handle hot, corrosive liquids without risk, polypropylene pipework is often chosen where traditional metal systems would suffer from corrosion, scaling or premature failure.

To suit different system pressures and duty requirements, our inch PPb pipe is available in five pressure classes, allowing you to select the correct pipe for your application without unnecessary over-specification.

Class A - 3 Bar

Designed for low-pressure systems, Class A PPb pipe is ideal for applications where chemical resistance and temperature performance are required, but system pressures remain modest. Often used for gravity-fed systems, vent lines and low-stress chemical transfer.

Class B - 6 Bar

Class B pipe offers a step up in pressure capability while retaining the same excellent chemical and thermal performance. Suitable for light-to-medium duty process pipework where moderate operating pressures are present.

Class C - 9 Bar

A popular all-round option, Class C PPb pipe balances higher pressure resistance with flexibility across a wide range of industrial applications. Commonly specified for chemical processing lines and industrial fluid handling systems.

Class D - 12 Bar

Class D pipe is designed for higher-pressure process environments, providing increased wall thickness and mechanical strength. Ideal for more demanding installations where pressure safety margins are critical.

Class E - 15 Bar

The highest pressure rating in the range, Class E PPb pipe is intended for high-pressure, high-temperature chemical conveyance. This class is typically used in critical process applications where system reliability and safety are paramount.

Polypropylene pipe systems offer a cost-effective alternative to metal pipework while delivering superior performance in chemically aggressive environments.

Benefits include:

• No corrosion or rusting
• Lightweight for easier handling and installation
• Long service life with minimal maintenance
• Excellent performance at elevated temperatures
• Broad chemical compatibility

For guidance on chemical resistance, pressure selection or suitability for your specific application, our technical team is always happy to help. Selecting the correct pipe class is essential to ensure safe, compliant and long-lasting system performance.