POV VALVE continues to focus on improving product quality. Only through the provision of zero-defective products and good after-sales services can the company win an ever-increasing reputation.

The company has passed ISO9001 quality management system certification, ISO14001 environmental protection management system certification, EU CE certification, EU ATEX certification, German DVGW gas certification. Product design and manufacturing meet API, ASME, EN/DIN, BS, JIS standards.

The company has professional painting and dusting equipment, which can provide surface treatment according to customer needs.


In addition to appearance, function and size inspection items of the butterfly valve, POV VALVE hardness and thickness of the sealing rubber
Strictly controlled, professional laboratories are also used to analyze the chemical composition of each batch of rubber and metal

Process inspection

Operators of the production line conduct self-inspection for each process, and professional quality inspection provides quality support and supervises product quality at all times. The thickness of each paint is measured by a thickness gauge to meet the standard.

Assembly inspection

All assembled valves require 100% pressure testing and the butterfly valve must also pass a torque test. Test records are kept as product files for more than 10 years, providing customers with good after-sales service guarantees.
Butterfly valve body ultrasonic wall thickness test    Butterfly valve disc surface finish test

Factory inspection

All valves must pass the final inspection before leaving the factory. The valve parameters must be consistent with the customer’s order requirements. Only products that meet the order requirements can enter the ERP delivery system.