Profile: Wenzhou Pioneer Valve Co., Ltd. designs and manufactures a wide range of valves. We are accredited with ISO 9001:2000 certification. We offer various types of ball valves including ultra short, ultra short jacketed, three-way, dumping, metal-to-metal seal and V-type ball valve. Our products are used in various industries including chemical, paper making, dyeing & printing, environmental protection, pharmaceuticals and water treatment.