Today, I will take you to visit our gate valve workshop.

Firstly, we hope to introduce the gate valve usage. Gate valves can be used for a vast number of fluids. Davan Flowtek’s gate valves are suitable under the following working conditions: Potable water, waste water , neutral liquids and gas.

PN25 resilient seat gate valve

It is designed for fully open or fully closed service. And they are installed in pipelines as isolating valves, and should not be used as control or regulating valves. When operating the valve stem, the gate moves up- or downwards on the threaded part of the stem. Operation of a gate valve is performed doing an either clockwise to close (CTC) or clockwise to open (CTO) rotating motion of the stem.

The resilient-seated gate valve is of particular advantage in the waste water sector because it does not have a valve bag at its bottom. The valve is a so-called smooth bottom passage which prevents deposits from building up in the bottom. The plastic sliding cap made of elastomer vulcanized all over a ductile iron core ensures 100% tightness, featuring very low operating torques at the same time. As the rubber(EPDM or NBR) is compressible, it can compensate unevenness in the coating, if any.


Here is the gate valve stem and disc storage area:

valve stem storage valve disc storage

Pressure Testing area:

pressure testing pressure testing for big size

Machining area:


Plywood case packing, ready for shipment

plywood case

Body stock:

valve body stock

The excite moment for this introduction is most most most biggest gate valve, DN1200 size. My height is about 178cm, so can you guess what about the height for this big brother?

DN1200 gate valveDN1200 GATE VALVE AND KEVIN GUO