In drainage and water supply networks where gravity flow and pump pressure coexist, the direct (straight-through) component is the most frequently used yet often overlooked pressure-bearing unit. K-SHOW has summarized 21 years of on-site data on the solid-rigid-viscous triphasic transformation of rigid PVC into an “orientation-contraction-relaxation” equilibrium table. This has transformed the direct mould from a mere transitional cylinder forming tool into the first node that determines the system's 30-year static pressure creep and fusion reliability. It meets the requirements of ISO 1452, ASTM D1785, and GB/T 10002, providing a “one-time fusion, lifetime maintenance-free” connection guarantee for municipal water supply and drainage, building interior cold and hot water, and low-pressure chemical transportation.
K-SHOW is a professional manufacturer and supplier of plastic molds. Welcome to consult.
The cavity of UPVC Plastic Pipe Coupling Mould is made of ESR-remelted H13 with a hardness of 48-50 HRC. After secondary tempering, the residual austenite is less than 2%, ensuring dimensional stability at 185 °C over the long term. The sealing surface is fitted with a NiCr25 ring, with a corrosion rate to Cl⁻ of ≤0.018 g/(m²·h). The entire template undergoes a deep-cold + hot cycle treatment of –190 °C × 6 h + 590 °C × 2 h, with a difference in thermal expansion coefficient of less than 1×10⁻⁶ /℃, eliminating seasonal "gaping."
A "four-zone-three-level" oil circulation design is adopted, with independent temperature control for the three major functional areas of socket, spigot, and reinforcement ribs, maintaining a temperature difference of ≤±0.3 °C. Pulse cooling is added to the gate area to achieve an inner wall roughness of Ra ≤0.25 µm, reducing biofilm attachment. An infrared temperature measurement interface is reserved, which can be linked with the extruder or injection molding machine's PLC to achieve thermal inertia compensation at the 0.05 s level. The scrap rate during color change or machine restart is less than 0.2%.
Covers the full series from DN15 to DN250, including seven common types of construction pipe fittings: 90° elbows, 45° elbows, tees, reducing tees, couplings, unions, and flanges. For sizes below DN50, a symmetrical four-cavity layout in one mould is used, and changing the mouth and core can complete specification switching within 30 minutes. Sizes above DN65 use a split assembly structure, which does not require removing the mould from the machine for maintenance. UPVC Plastic Pipe Coupling Mould supports four wall thickness grades of SDR26, SDR21, SDR17, and SDR13.5. The lip gap is adjustable online within the range of 0-1.2 mm, meeting the needs of mixed production of multiple orders on the same machine.
| Product Details | |
| Place of Origin: | Zhejiang China |
| Brand Name: | KSHOW |
| Certification: | ISO9001 |
| Product Material | Plastic |
| Product | UPVC Plastic Pipe Coupling Mould |
| Design | 3D or 2D |
| Runner Type | Cold Runner; Hot Runner |
| Mould Steel | P20H/718/2316/2738etc |
| Mould Llife | 500,000~1million shots |
| Payment & Shipping Terms | |
| Minimum Order | 1set |
| Packaging Details: | Standard Wooden Case Package, Size depend on mould size |
| Delivery Time: | 45-60workdays |
| Payment Terms: | L/C, T/T |
| Supply Ability: | 50sets per month |
Q: How can l know my project going on without visiting your company?
A: We provide regular updates through emails, online meetings, and weeklyreports with pictures and videos for real-time monitoring of your project.
Q: What is the lead time of UPVC Plastic Pipe Coupling Mould, and first trial samples?
A: 3~6 weeks usually ( After DFM report confirmed )
Q: How soon can l get 3D printing prototype samples?
A: Depending on your specific project, it usually takes around 7-12 working days.
Q:Will my drawings be divulged if you benefit?
A: No, we pay the great importance to protect our customers’ privacy of drawings, NDA can be signed if need.
Q: What will you do if we are not satisfied with the product quality?
A: lf you're not satisfied with the product quality, we reassess the issues, makenecessary adjustments or corrections, and ensure the product meets your expectations and quality standards.
Address
No.18 Shangxian Road, Beicheng Industrial Zone, Huangyan District Taizhou City, Zhejiang Province, China
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