Certifications

Walchin Certifications

Our Industry Certifications

Walchin is committed to the highest industry standards. We hold certifications ensuring quality, sustainability, and regulatory compliance.

ISO 9001:2015

ISO 9001:2015

Quality Management System Certification ensuring consistent product quality.

ISO 14001:2015

ISO 14001:2015

Environmental Management System Certification for sustainable operations.

NSF/ANSI 61

NSF/ANSI 61

Certification for safe drinking water components and materials.

Invention Patent 1

Invention Patent

Reverse osmosis membrane for fractional reverse osmosis treatment of treated liquid.

Invention Patent 2

Invention Patent

Reverse osmosis membrane functional layer solution formula and coating process.

Invention Patent 3

Invention Patent

Continuous coating device with controllable coating thickness for reverse osmosis membrane support layer.

Invention Patent 4

Invention Patent

High performance reverse osmosis membrane and its manufacturing process.

Invention Patent 5

Invention Patent

Reverse osmosis membrane coating and reverse osmosis membrane body suitable for strong acid solution.

Invention Patent 6

Invention Patent

A reverse osmosis membrane device with multiple filter chambers.