Ginde Company introduces the most advanced technology and equipment form Germany Krauss-Maffei Company, Reimelt Company. We adopt the high quality PVC resin and import processing aids, with a scientific formulation to produce new PVC-U composite drainage pipes and fittings according to the national standards. Besides, we can produce high flame-retardant downcomer which accords with the strict fireproof requirement for high-rise in terms of customer’s requirements.
.Our products have high quality, various specifications and passed strict inspections. Our products have passed the ISO 9001Quality Management System Certificate and ISO 14001 Environmental Management System Certificate. Our products match the Q/JDG.J02.13-2002 and GB/T5836.2-1992 standards respectively

Density                                            1350-1460kg/m3
Vicat melt temperature                                 ≥80℃
Tensile strength                                     ≦5%
CH2C12 immersion test                                No changing on the surface
(15℃×15min)                                                         

High-class products derive from high-class equipment, advanced process, scientific management and high-quality materials. Ginde pipe industry has imported the advanced production technology and equipment from Krauss-Maffei Company, Reimelt Company, make use of high-quality PVC resins, imported process auxiliary agent and green nano-materials, through scientific formulation to produce high-quality new-type composite drainage pipes. This kind of new-type PVC-U composite drainage pipe has features as follows:
1.Compared to solid-wall PVC-U pipe and other drainage pipes, Ginde new-type PVC-U composite drainage pipe is lightweight, very convenient to transport, load and unload. Easy to maintain, lower cost and the density of pipe surface is 0.90~1.20 g/cm3.
2.Beautiful and elegant appearance, suitable for large-scale modern buildings; smooth wall inside of PVC-U pipe reduces the resistance to the fluids, thus increasing the capacity to conduct water with less noise.
 3.Compared to the solid-wall pipe, Ginde new-type PVC-U composite drainage pipe owns better impact strength with its ring rigidity eight times over ordinary PVC-U. It is particularly suitable for airports, roads and railways as drainage pipes. Ginde new-type PVC-U composite drainage pipe owns good mechanical properties. The composite multilayer structure makes the pressive strength of inner wall greatly improved. This pipe has more reasonable cross-section mechanical properties. So it possesses advantages such as high mechanical properties, good toughness and pressive strength. In order to reduce the breaking problem during construction and application, the impact energy of  Ginde new-type PVC-U composite drainage pipe is 2-4 times of the national standard for solid-wall PVC-U pipes according to test result. Therefore, it can greatly reduce the accidental damage due to construction and application.
4.Ginde new-type PVC-U composite drainage pipe can be use in wider range of temperature (-300C~700C) and it has better stability as humidity changes while ordinary PVC-U can only be used under -150C~650C and be covered with humid coating when applied outdoor to prevent frost cracking in the winter.
5.Ginde new-type PVC-U composite drainage pipe greatly improves the sound insulation property due to its special composite multilayer structure. The composite multilayer effectively insulates and absorbs noise transmission to greatly reduce the flow noise and more suitable for the drainage system of high-rise buildings.
6.The heat shielding performance of the Ginde PVC-U new type composite drainage pipe is excellent, and the heat transfer efficiency of the PVC-U new type composite drainage pipe is 35% less than the solid tubing; the working temperature range is wide, no dew on surface; when it can be used for the transportation of the cold and hot liquid with humidity protection, the temperature cost can be saved.
7.Ginde new-type PVC-U composite drainage pipe owns excellent electric insulation and is suitable to be used as casings for electric wires and cables.
8.Ginde new-type PVC-U composite drainage pipe has 10 years more of service lifespan than ordinary PVC-U drainage pipe under the flexural condition.
9.Light stabilizer has been added into the raw materials of Ginde new-type PVC-U composite drainage pipe to effectively prevent lifespan reducing due to light aging.
10.The advanced nanometer technology has been adopted to produce Ginde new-type PVC-U composite drainage pipe, which provides strong corrosion resistance, excellent aging resistance, with its service lifespan up to 50 years and excellentaging resistance, with its service lifespan up to 50 years and excellent comprehensive property.
11.Ginde new-type PVC-U composite drainage pipe is not easy to break up, does no harm to environment, European committee of PVC products has verified by experiments that PVC-U product which is difficult to break up does not cause adverse impact on human body during application, and can be buried together with other solid waste without harm to environment.
12.Complete supports and accessories of pipes can match various design and installation requirements.

III.Production technique of Ginde PVC-U composite drainage pipes

1. Production equipment

The plastics molding extruder (for tubing) imported from Germany KraussMaffei Company is designed and manufactured with the most advanced technology at present in the world, which owns advanced performances such as three-layer co-extrusion, high-speed extrusion molding, automatic cut-of-length, on-line hot-melt tube end expansion and PC software controlled production processes.
The PC software (C4) for controlling the production processes can be inputted and set in advance according to process specification, start-up time, temperature control criterion and other conditions during production operations. Meanwhile, all the modification of running speed, melt pressure, extrude output, torque load and regulations of equipment motor and screw rod is automatically monitored, recorded, stored for reading; it also can alarm dangerous conditions, automatically shut down and display suggestions or correcting instructions on the screen (it can read and used with three languages). Therefore, it can guarantee fundamentally equipment in good condition as well as normal operation of production processes.
Advanced mechanical structural design adopts planoconic twin screw with slenderness ratio of 36D, perfectly integrated with scientific and special compression ratio process technological design and mechanical structure. It owns prominent performances such as secondary air exhaust, repeated compression, moderate melting, high-speed extruding production process. Meanwhile, it equipped with large mixing equipment imported from Germany Reimelt, which owns the functions of automatic metering and convey, dust-free seal and uniform mixing and dispersing; therefore it can guarantee the continuous process of production automatization.
2.Raw material

PVC resins are adopted as the carriers; they own the high quality performance such as accurate response to temperature, timing melt and rapid absorption of addition agents when reducing the intermolecular gravitational interaction of resins. Meanwhile, our company has adopted the world top brand complex thermal stabilizer - German "Bea"  which can capture, inhibit, absorb and neutralize emitted hydrochloride, make double-bond addition reaction with polyene and replace active and unstable atom chlorine in molecules. Therefore, catalytic degradation and oxygenolysis of resins under molting state can be effectively and scientifically controlled