Plastic Tri-Pack – Temperature and Chemical Resistance for Water Treatment

Plastic tri-pack is a type of random tower packing, which has hollow, spherical structure. Plastic tri-pack has a symmetrical geometry, which is made from a unique network of ribs, struts and drip rods. It is made of injection molded plastic, including PP, PE, PVC, PVDF and other materials. The most widely used diameter of plastic tri-pack is 1", 1-1/4", 3" and 3-1/2".

Available materials

Polypropylene (PP).
Polyethylene (PE).
Polyvinyl chloride (PVC).
Chlorinate polyvinyl chloride (CPVC).
Polyvinylidene Fluoride (PVDF).
Reinforced Polypropylene (RPP).

A 360° overview of plastic tri-pack on the blue background.

PTP-01: 360° shows of plastic tri-pack for comprehensive understanding.

Two plastic tri-packs on the blue background and we can see the sectional structure.

PTP-02: Sectional view of plastic tri-pack.

Two plastic tri-pack on the blue background and we can see the side structure.

PTP-03: Side view of plastic tri-pack.

Two plastic tri-pack: one is standing and the other is lying on the blue background.

PTP-04: Plastic tri-pack has a hollow spherical structure with several ribs and struts.

Three big and several small plastic tri-packs on the blue background.

PTP-05: Plastic tri-pack can be customized into any size according to customers' requirements.

Table 1: The Specification of Plastic Tri-Pack
Item	Size (mm)	Surface Area (m²/m³)	Voidage	Bulk Number (n/m³)	Bulk Density (kg/m³)	Dry Packing Factor (m^-1)
PTPR-01	25	85	90%	81200	81	28
PTPR-02	32	70	92%	25000	70	25
PTPR-03	50	48	93%	11500	62	16
PTPR-04	95	38	95%	1800	45	12

Table 2: Physical & Chemical Properties of Different Materials of Plastic Tri-Pack
Material/Performance	Density (After Injection Molding) (g/cm³)	Operation Temperature (°C)	Chemical Corrosion Resistance	Compression Strength (MPa)
PE	0.98	90	good	>6.0
PP	0.96	>100	good	>6.0
RPP	1.2	>120	good	>6.0
PVC	1.7	>60	good	>6.0
CPVC	1.8	>90	good	>6.0
PVDF	1.8	>150	good	>6.0

Features of plastic tri-pack

High mass transfer efficiency.
Evenly gas and liquid distribution.
High surface area.
Extremely low pressure drop.
Temperature and chemical resistance.

Applications of plastic tri-pack

Gas absorption and purification.
Gas & liquid separation.
Liquid extraction.
Water treatment.
Biological filtration.