Moulding flange gate valve
Model No.: DN800
About BS5163 Non Rising Stem Resilient Seated Wedge Gate Valve:
gate valve are widely used for all types of applications and are suitable for both above ground and underground installation.Not least for underground installations it is paramount to choose the right type of Valve to avoid high replacement costs.
Gate valves are designed for fully open or fully closed service.The are installed in pipelines as isolating valves,and should not be used as control or regulating valves.Operation of a Gate Valve is performed doing an either clockwise to close (CTC) or clockwise to open (CTO) rotating motion of the stem.When operating the valve stem,the gate moves up or downwards on the threaded part of the stem.
Gate valves are often used when minimum pressure loss and a free bore is needed.When fully open,a typical gate valve has no obstruction in the flow path resulting in a very low pressure loss,and this design makes it possible to use a pipe-cleaning pig.A gate valve is a multiturn valve meaning that the operation of the valve is done by means of a threaded stem.As the valve has to turn multiple times to go from open to closed position,the slow operation also prevents water hammer effects.
Gate valves can be used for a vast number of fluids.Gate valves are suitable under the following working conditions:Potable water,wastewater and neutral liquids:temperature between -20 and +80 ℃,maximum 5m/s flow velocity and up to 16 bar differential pressure.
BS5163 Non Rising Stem Resilient Seated Wedge Gate Valve feature:
*Gate Valves are made of ductile iron and meet BS5163 requirements.
*Stainless steel stems provided as standard to eliminate bent or broken stems.
*Fully encapsulated EPDM wedge to prevent deterioration from disinfectants.
*Certified to WRAS.
*Made in China