- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
 |
| Quantity: | |
|---|---|
SIZE | PCS/CTN | WEIGHT | MEASURE(mm) | ||
20 25 32 40 50 63 75 90 | 90 57 38 20 16 8 4 4 | 195 325 445 710 1070 1760 2150 4480 | 45 45 50 48 50 50 50 40 | 35 35 30 35 30 30 30 40 | 31 37 35 35 35 35 35 46 |
The Leak-proof PP True Union Valve redefines reliability in water distribution systems with its innovative design and premium polypropylene (PP) construction. Engineered to eliminate the most common cause of valve failure—junction leaks—this valve features a true union structure that isolates the sealing mechanism from fluid pressure, ensuring drip-free operation even under fluctuating flow conditions. Made from beta-nucleated PP-H (high-performance polypropylene), it outperforms standard plastics with a temperature tolerance up to 110°C, making it suitable for both cold and hot water applications. Whether controlling flow in residential plumbing or industrial pipelines, this valve combines durability, ease of maintenance, and cost-effectiveness in a single solution.
Equipped with an integrated EPDM sealing ring (compliant with EN 681-2 standards), the valve achieves a hermetic seal with a pressure rating of ≥0.5 bar in the coupling area. The double O-ring design prevents backflow and ensures zero leakage, even after 10,000+ cycles of operation. The true union design allows for easy removal of internal components without disconnecting the entire pipeline, simplifying repairs and replacements.
Constructed from PP-H (polypropylene homopolymer) as per DIN 8077/78 specifications, the valve exhibits superior chemical resistance to acids, alkalis, and organic solvents. Its beta-nucleated structure enhances impact strength (H 50 >1.2m according to EN ISO 11173) and creep resistance, ensuring long-term performance in high-pressure systems up to 10 kg/cm² .
The valve features a non-rising stem with a ergonomic handwheel, allowing precise flow control even in tight spaces. Its lightweight polypropylene construction (30% lighter than PVC valves) reduces installation effort, while the full-bore design minimizes pressure loss. The union connections accommodate standard pipe sizes from 20mm to 110mm, with compatibility for both PP and HDPE piping systems.
This versatile valve finds applications across multiple sectors:
Residential Water Systems: Controls water flow to kitchens, bathrooms, and irrigation lines, withstanding daily pressure fluctuations.
Commercial Buildings: Manages water distribution in hotels, hospitals, and offices, where leak prevention is critical for operational efficiency.
Industrial Processing: Regulates flow in chemical dilution lines and water treatment plants, resisting corrosion from cleaning agents.
Agricultural Irrigation: Controls water distribution in farms and greenhouses, handling fertilizer mixtures without degradation.
A true union valve features separate union connections on both ends, allowing the valve body to be removed for maintenance without cutting the pipeline. This design reduces downtime during repairs compared to standard valves, which require full disconnection.
Yes. The PP-H material withstands continuous operating temperatures up to 95°C and intermittent peaks up to 110°C, making it suitable for domestic hot water systems and light industrial heating applications .
Under normal operating conditions, the EPDM sealing rings have a service life of 5–7 years. Replacement intervals may vary in aggressive environments or high-cycle applications; visual inspection for leaks is recommended annually.
While primarily designed for PP and HDPE piping, the valve can connect to metal pipes using appropriate transition fittings. Ensure the transition fitting is rated for the same pressure and temperature as the valve to maintain system integrity.
