Karwins has established strict quality assurance and control system and safety, health and environment management based on ISO 9001, ISO 14001 and OHSAS 18001. Our valves have been certified in compliance with API 6D, API 607, API 6FA, CE, GOST and CU-TR requirements.

The main specifications for our valves are as follows:  

Major products: gate valves, globe valves, check valves, ball valves, butterfly valves, control valves and etc.

The working pressure and temperature: Class 150 ~ Class 4500 and -196°C ~ 800°C

Main materials: carbon steel, stainless steel, alloy steel and nickel-based

Design Standard:API, ANSI, JIS, DIN, BS, GB and etc.