Types of Hawach Filter Membranes

Hawach Scientific Co., Ltd provides membrane disc filters with different varieties. Generally, there are two major sorts– Disc filter and Filter Roll, which respectively are distributed with many subordinate orders. Membrane disc filters, for example, have nylon, PTFE, hydrophilic PTFE, PES, MCE. etc.
Essential Technical Parameters

Pore size0.1/0.22/0.45/0.8/1.0/3.0/5.0/10.0um

(Disc Filter)

13/25/47/90/142/293/300 mm

(Filter Roll)


Fixed inner core: 22mm

Bubble Point0.22, >=0.31/0.45, >=0.17(um,mpa)
Flow velocityProportional to the pore size
Package47mm, 100pcs/pack;  142, 50pcs/pack

*Home-made Nylon Membrane Filters supply all the listed Pore sizes, while home-made PTFE Filters only provide size of 0.1, 0.22, 0.45, 0.8, 1.0, 3.0 um.
* The bubble point is used for testing if the pore size is qualified.
1 Membrane filters are applicable for both non-sterile and sterile conditions
2 The applications rely on distinguish sizes of the membranes.
Naming Rules of Product Number
Product Number consists of product name, material, pore size and Others.
For instance, MLNY13010 means that the product is named Membrane Filters, made of nylon and possesses diameter of 13mm and pore size of 0.10um.