3 Layer PEXa EVOH Oxygen Barrier Pipe Production Line
EVOH oxygen barrier Coating Layer Making Machine
PEX-a EVOH Pipe: Suitable for underfloor heating systems and
Its manufactured by the peroxide xa cross-linking system. It has 3
layers: PEXa / adhesive / EVOH. The PEXa EVOH pipe has great
flexibility and perfect homogenization of the cross-linking. It is
very resistant to corrosion and chemical agents. It has an
excellent thermal memory.
The EVOH barrier is a thin layer of ethyl vinyl alcohol that
prevents the permeability of the pipe and diffusion of oxygen
throught it. This avoids the corrosion of the metal parts, which
prolongs the life of the whole installation.
Chemical resistance to building materials allows the PEXa EVOH pipe
to be embeded in walls and floors without the need for protection.
Produced Pipe Size
|No.||Pipe Diameter||Pipe Thickness|
Production Line Brief Introduction:
- Dual working position;
- Passive pipe uncoiling
- Special designed screw and barrel for EVOH material, and Glue
material, having better plasticizing effort
- Using ABB brand converter; Schneider electric elements, and also
all China top brand driven motor and gear reducer
- Extruder temperature is set and controlled by PLC with PID system,
more precise and stable;
- And other operation controls are all operated on the main PLC
system, with alarm, sync control and protection system
- Two layer co-extrusion die head for glue and EVOH layer coating
- Special VACUUM type design, ensuring better compound of glue and
- High quality mould steel 40Cr material, processed by imported CNC
Tip and die mould surface are chrome-painted, to reduce friction
force, increase its hardness and longer its service life, also easy
- Two sets haul-off machines are equipped; first one is to straight
the pipe, and keep stable of the pipe, to avoid any vibration of
the pipe while entering the die head;
- Several stage of pipe straighten and guide devices equipped
- Haul-off speed is controlled by ABB controller, with SYNCRONIZED
function with extruder’s rotation speed.
- Haul-off speed ratio of two machines are set on PLC system,
ensuring stable working of the system
- Torque motor driven; Coiling speed can be easily adjusted with
- Coil sizes like ID and width can be adjusted; and size with laser
maker for operation convenience.
Contact Us to Get Detailed Quotation!!