Water Vapour Permeability Tester

Product Description

The  Water Vapour Permeability Tester is made of twelve brass bottles. It measures water vapour permeability of leather. The bottles have nut of circular opening. The bottles are mounted on the bottles holders which rotate at specified revolution per minute with the help of motor pulley & belts.

The axis of the bottles is parallel to the axle of the bottles holders. A fan mounted in front of the mouths of the bottles and consisting of three blades in planes that is inclined at 120º to one another. The planes of the blades pass through the prolongation of the axle of the wheel.

A pre set digital timer is mounted for setting total no. Of hours of instrument movement. All the components are chrome/ zinc plating & painting for corrosion resistance long life.

The weight of water vapours absorbed by a sample of leather is determined by fixing a circular piece of leather over a cylindrical cavity in a metal container having distilled water inside it. The test specimen is held firmly against the lip of the cavity and allowed to come in contact with the vapours left off by the water for a specified period of time. The gain in weight of the test specimen because of absorption of vapours by it is determined, from which the value of water vapour absorption is calculated.

Features:

• Appreciable performance
• Highly efficient
• Better testing capacity