YS VALVE Limited is a Company that specialises in manufacturing valves for 40 years. 　　Our quality is approved to AGA, (US) UL and ISO 9001. We are constantly & developing new products, and we have new patent designs. 　　In technology we are leaders and have created various new designs with the result that we have impressed many customers in the market place. In future we are focusing more attention to developing with our constantly striving to improve quality so as to reach the highest standards possible at all times.

1964 Our Company was founded. 1970 Starting exporting overseas. 1978 We purchased the eight shafts way special purpose Machine to increase production. 1987 Our Gas Ball Valve became AGA approved. 1999 We became ISO 9002 approved, and to improve our quality purchased the CNC machinery. 1999 The Globe/Angle Valves was (US) UL approved. 2002 The Gate Valve was (US) UL approved. 2003 Approved for ISO 9001 / 2000 standards. 2004 Purchased more CNC machinery and starting to use the new upright type CNC machine to further stabilize our quality.