PPh Valves & Strainers Metric

Our range of polypropylene (PP-H) valves and strainers is specifically designed for demanding applications involving hot, aggressive, and chemically corrosive media. These components form a critical part of industrial thermoplastic pipe systems, offering reliable flow control, system protection, and long service life where traditional metal valves would corrode or fail.

Manufactured from polypropylene homopolymer (PP-H) and finished in beige-grey (RAL 7032), these valves and strainers deliver excellent chemical resistance, abrasion resistance, and thermal stability, making them ideal for use across chemical processing, water treatment, pharmaceutical, food & beverage, laboratory, and industrial waste applications.

Available with a choice of EPDM, FPM (Viton), or PTFE sealing options, and supplied with plain, spigot, BSP threaded, wafer, and flanged connections, this category offers one of the most comprehensive selections of PPh valves and strainers available in the UK.

• Excellent resistance to acids, alkalis, salts, and aggressive chemicals
• Suitable for continuous operating temperatures up to 80°C (dependent on valve type and seal material)
• Lightweight yet robust construction
• Smooth internal bores to reduce pressure loss and prevent build-up
• Corrosion-free alternative to metal valves
• Compatible with socket fusion, butt fusion, threaded, and flanged systems
• Ideal for both new installations and system upgrades

PPh ball valves provide positive shut-off and reliable flow control, making them one of the most widely used valve types in chemical and industrial pipework systems.

Available in plain, spigot-ended, and BSP threaded configurations, these valves are designed for straightforward isolation duties.

Key features:

• PP-H body and ball for maximum chemical resistance
• EPDM seals for general chemical and water applications
• FPM (Viton) seals for enhanced resistance to oils, fuels, and aggressive chemical
• Full bore design for minimal pressure loss
• Manual lever operation for quick on/off control

High-performance industrial ball valves engineered for critical process control applications.

Key features:

• Premium PP-H construction
• Double union design for easy removal and maintenance
• Lockable handle and adjustable end stops
• High pressure and temperature capability
• Suitable for aggressive and high-purity media

Designed for flow diversion, mixing, or switching between lines, these valves are commonly used in process control systems.

Key features:

• T-port configuration for multi-directional flow
• PP-H construction with chemical-resistant seals
• Compact design for tight installations
• Ideal for dosing systems and distribution manifolds

PPh non-return valves prevent backflow and reverse pressure, protecting pumps, equipment, and pipework.

Suitable for vertical or horizontal installation depending on design.

Key features:

• PP-H body with chemically resistant seals
• EPDM or FPM sealing options
• Plain metric or BSP threaded connections
• Low cracking pressure for efficient operation

Compact valves designed to be installed between flanges.

Key features:

• Space-saving wafer design
• Suitable for higher flow rates
• Ideal for industrial process lines
• Available with spring-assisted or swing-type mechanisms

Engineered for fast response and controlled closure.

Key features:

• Stainless steel spring mechanism
• Reduced water hammer
• Excellent for pump discharge applications
• EPDM or FPM sealing options

PPh butterfly valves are ideal for larger diameter pipelines where compact installation and quick operation are required.

Key features:

• PP-H body with EPDM or FPM liner
• Lightweight design compared to metal alternatives
• Quarter-turn operation
• Suitable for throttling and isolation
• Compatible with manual, gearbox, or actuated operation

Air release valves protect systems by automatically venting trapped air, improving flow efficiency and preventing pressure issues.

Designed for metric pipe systems.

Key features:

• PP-H construction
• Automatic air venting
• Suitable for chemical and water treatment systems
• Choice of EPDM or FPM seals

Ideal for retrofits or threaded pipework.

Key features:

• BSP threaded connections
• Compact and reliable design
• Reduces air locking and flow disruption
• Chemical-resistant sealing options

PPh diaphragm valves provide precise flow regulation and are especially suited to abrasive, viscous, or contaminated media.

Key features:

• PP-H body with EPDM diaphragm
• Excellent sealing performance
• Suitable for slurries and corrosive liquids
• Low maintenance design

Designed for high-purity and highly aggressive chemical applications.

Key features:

• PTFE diaphragm for superior chemical resistance
• Ideal for pharmaceutical and laboratory use
• Excellent temperature and pressure stability

Foot valves are installed at pump inlets to maintain prime and prevent debris ingress.

Key features:

• Integrated strainer basket
• Prevents backflow and pump dry-running
• PP-H body for chemical resistance
• Available in plain or threaded versions

Y strainers provide inline filtration, protecting valves, pumps, and instrumentation from solids and debris.

Key features:

• PP-H construction
• Removable strainer element for easy cleaning
• Minimal pressure drop
• Ideal for chemical processing and industrial fluid systems

With one of the broadest selections of PPh valves and strainers available, Pipestock makes it easy to design reliable, corrosion-resistant pipework systems for even the most demanding environments. Whether you’re controlling flow, preventing backflow, releasing trapped air, or protecting equipment from debris, this range offers dependable performance, long service life, and full compatibility with modern thermoplastic pipe systems.