Established in 2008, Zhejiang Demelong Fluid Technology Co., Ltd. is a manufacturer specializing in plug valves and fluid control products. We combine product development, machining, assembly and testing within our manufacturing operation, serving overseas distributors, contractors and industrial customers.

The product range covers sleeve type, lubricated, metal seated, eccentric and double block and bleed plug valves, with options for different materials, connection types and valve configurations. Production and inspection requirements are defined according to the product specification and individual order.

Our Advantages
Multiple plug valve designs for different pipeline requirements.

CNC machining and grinding for key valve components.

Assembly and functional testing within the production process.

Pressure, leakage and dimensional inspection before shipment.

API and CE requirements covered for applicable valve products.

OEM options for valve materials, connections, dimensions and configurations.