PPH Butt-Weld Steel-Lined Slip-On Flange DN15-500 GB Standard

Wholesale High Quality Earthy Yellow PPH Butt-Weld Steel-Lined Slip-On Flange 1.0-1.6 MPa working pressure, DN15-DN500 general-purpose plastic pipe fittings for the sewage and chemical industries
Place of Origin: China
Brand Name: KXPV
Material: PPH
Technics: Forged
Connection: socket
Shape: Equal
Head Code: Square
Color: Earthy Yellow
Size: DN15-DN500
Application: Industry
Packing: Carton Box
Working Pressure: 1.0-1.6Mpa (10-25bar)

App Temperature Bound List
Material        Medium temperature℃ Material Medium temperature℃
PVC-C -20℃~+95℃ PVC-U -5℃~+45℃
FRPP -20℃~+120℃ PPH -20℃~+110℃
PVDF 40℃~+150℃

Product Structural Features

1. High Crystallinity
Made from a single polypropylene monomer, the molecular chain contains no ethylene monomers; the molecular chain is highly regular and offers a long service life.
2. Excellent Corrosion Resistance
It can withstand corrosion from high-concentration acids and bases within a pH range of 1-14.
3. Heat-Resistant, Insulating, and Energy-Saving
It can operate in temperatures from -20°C to 110°C. Its low thermal conductivity provides excellent insulation performance.
4. Reliable Connection
The hot-melt joints are stronger than the pipe itself, preventing them from breaking due to soil movement or loads.
5. Excellent Construction Performance
This product is lightweight, features a simple welding process, is easy to install, and offers a low overall cost, suitable for complex process piping. PPH piping systems are widely used in industries such as electroplating, etching, chemicals, pharmaceuticals, wastewater treatment, and environmental engineering.

PPH Butt Welding Vanstone Flange

DN D1 D2 D3 D4 S L1 L2 T h n-Φ
15  20  65  95  2.5  71.5  50  14  7.5  4-Φ14
20  25  75  105  2.7  75.5  50  16  9.5  4-Φ14
25  32  85  115  77  50.5  16  10.5  4-Φ14
32  40  100  140  3.7  80  50.5  18  11.5  4-Φ19
40  50  110  150  4.6  81  50.5  18  12.5  4-Φ19
50  63  125  165  5.8  85  50.5  20  14.5  4-Φ19
65  75  145  185  6.9  87  50.5  20  16.5  4-Φ19
80  90  160  200  8.2  78  40  20  17  8-Φ19
100  110  180  229  10  78  40  22  18  8-Φ19
125  140  210  250  12.7  110  60  22  25  8-Φ19
150  160  240  285  14.6  107  60  24  25  8-Φ23
200  225  295  340  20.5  121  60  24  32  8-23
250  280  350  362  410  25.4  126  60  30  35  12-Φ22X28
300  315  400  432  483  28.6  135  60  36  37  12-Φ25X41
350  355  460  470  520  32.2  145  60  42  47  16-Φ25X30
400  400  515  540  597  36.3  160  63  46  52  16-Φ29X41.5
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About Us
Kaixin Pipeline Technologies Co., Ltd.

Founded in 1999, Kaixin Pipeline Technologies Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing, sales, and service. The company holds multiple prestigious certifications, including National High-Tech Enterprise, “Little Giant” Specialized and Sophisticated SME, National Single Product Champion (Cultivation), Provincial Technology-based SME, Ningbo Specialized and Sophisticated SME, Ningbo Single Product Champion (Cultivation), Ningbo Polymer Pipe & Valve Technology R&D Center, District-Level Green Factory, Ningbo Four-Star Management Innovation Enterprise, and Enterprise Data Management Capability Maturity Level 2.

We specialize in developing, producing, and supplying non-metallic corrosion-resistant products for chemical applications, including plastic valves, pipes, pipe fittings, and corrosion-resistant pumps. Our product portfolio spans materials such as PVC-C, PVC-U, PVDF, PPH, and FRPP, with a comprehensive range of types and specifications. Notably, our butterfly valves can reach DN1000 in diameter, while pipes and fittings extend up to DN800, addressing market gaps and maintaining our competitive edge in the industry.

Guided by the principle of “Technology-Driven, Keeping Pace with the Times,” Kaixin allocates nearly RMB 10 million annually to R&D. We ensure superior product quality through standardized automated manufacturing and strict sourcing of imported raw materials. Aligned with our international development strategy, we continuously monitor global market trends and leverage digital channels to bring high-quality “Made in China” products to customers worldwide.

Ningbo • Fenghua R&D & Production Base

With a total investment of RMB 200 million, Kaixin Ultra-Pure Pipe Technology (Ningbo) Co., Ltd. has established a new materials laboratory in collaboration with universities and research institutes, built a modern manufacturing base, and installed 8 fully automated production lines for modified plastics and 8 for polymer materials. The facility is dedicated to the R&D, production, and application of new modified plastics and polymer materials. Kaixin is also committed to attracting top talent across disciplines, continuously driving product innovation and brand development, with the goal of becoming a globally recognized leader in the R&D and manufacture of polymer valves, pipes, and fittings.
Certificate Of Honor
  • 一种化工用超大型蝶阀
  • 一种抗腐蚀耐热改性塑料及其制备工艺
  • 一种耐紫外老化纳米改性塑料及其制备工艺
  • 一种移动式塑料管道切割装置
  • 一种方便收纳隐藏的饮用水管道阀门
  • 化工用超大型蝶阀
  • 一种蝶阀阀瓣结构
  • 一种蝶阀阀体结构及控制阀
  • 一种法兰球阀结构
  • 一种隔膜阀
  • 一种隔膜阀执行机构
  • 一种管道连接用法兰