Ningbo Fangli Technology Co., Ltd. is a
mechanical equipment manufacturer with nearly 30 years’ experiences of plastic
pipe extrusion equipment, new environmental protection and new materials
equipment. Since its establishment Fangli has been developed based on user’s
demands. Through continuous improvement, independent R&D on the core
technology and digestion & absorption of advanced technology and other
means, we have developed PVC pipe extrusion line, PP-R pipe extrusion line, PE
water supply / gas pipe extrusion line, which was recommended by the Chinese
Ministry of Construction to replace imported products. We have gained the title
of “First-class Brand in Zhejiang Province”.
The toughness and resistance to chemicals
of polyethylene, as well as the corrosion resistance and low weight have
contributed to its growing use in situations where cost-effective and durable
fluid and gas piping systems are required. According to a press release from
the Plastics Pipe Institute, "PE piping has been used for water and other
fluids in Europe and America since the 1950s due to its durability, leak free
joints, resistance to corrosion, and long-term cost-effectiveness."
HDPE pipe can be joined by butt welding,
electrofusion welding, socket welding, or extrusion welding. These joints heat
the pipe during the joining process, creating a completely homogenous joint so
the weld becomes as strong, or stronger than the existing pipe on either side
of the weld. There is no need to use rubber seals or jointing chemicals, as is
used for joining PVC pipe, which cause environmental health issues and increase
the chance of failure over time. PE is less likely to have problems with root
intrusion, and provides integrity for the pipeline, even when installed in
unstable soils.
Due to the fusion welding system, the need
for anchors or thrust restraint blocks are eliminated, as the joints become
fully end load resistant, reducing costs for material and installation time.
This also allows for safer excavation close to the pipeline in future, which is
particularly important for high pressure gas pipelines. Coils of PE Pipe make
trench-less installation safer and less intrusive on the surrounding
environment.
HDPE Pipe Systems are available for many
applications, providing for standard trenching of water mains, fire ring mains,
sewer mains, and gas mains pipelines, as well as horizontal drilling for
electrical and telecommunications conduits. According to a company that
manufactures HDPE, HDPE systems are cost-effective to install and have
long-term maintenance cost savings, and also allow for cheaper installation
methods, such as HDD (horizontal directional drilling), sliplining, pipe
bursting, floating and submerged pipe.
HDPE pipe is very durable and flexible and
can be bent on site to a radius twenty-five times the nominal pipe diameter -
for SDR11 and SDR17 pipe, at or below 20°C ambient temperature. This provides
major cost savings, when compared to different pipe systems, some of which
require glued fittings, restraints or thrust blocks for even minor changes in
direction. Because of the high impact resistance and flexibility of HDPE pipe,
it is well suited to installation in dynamic soils including in
earthquake-prone areas. HDPE pipe has very high flow capacity, because of its
smooth bore and end-to-end jointing methods. HDPE pipe does not corrode in the
environment, and will maintain its flow capabilities over time, unlike ferrous
piping systems, which will rust and build up internal resistance to fluid
flowing through it.
Because food-grade polyethylene virgin
material is used to fabricate HDPE pipes, they are safe for the transfer of
drinking water, provided that any initial debris has been flushed out. HDPE
pipe is resistant to many chemicals, facilitating its use in process plants or
around corrosive or acidic environments, without needing to use protective
coatings or galvanising, as is required on steel pipes. As HDPE has a very low
thermal conductivity, it can maintain more uniform temperatures compared to
metal pipes when carrying fluids, which will greatly reduce any need for
insulation to control condensation around the pipeline.
If you need more information, Ningbo Fangli
Technology Co., Ltd. welcomes you to contact for a detailed inquiry, we will
provide you with professional technical guidance or equipment procurement
suggestions.