OVIKO Forged trunnion mounted ball valve is developed by the engineering technical personnel from the factory with more than 30 years experience in design and manufacture of high-pressure valve and international latest technical standard,The valve is mainly used for the long distance pipeline transportation of petrol,natural gas and gas pipeline system in cities.For the special characteristics in use of the valve by long distance pipeline transportation,full consideration is given in the design to capability in bearing pipe stress,safety,weather resistance and reliability in long time used.The design of sealing and structure belong exclusively to the factory..Various kinds of operation are available included manual,worm gear,pneumatic,electricity,pneumatic-hydraulic,electrically-hydyaulic,computer controlled,as well as various special control models.

For the purpose of preventing the stem from flying off resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.

For the purpose of preventing the stem from flying off resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.

OVIKO TOP ENTRY BALL VALVE is mainly used in pipeline and industry system and it has a top entry and on line maintenance function.It has a lot of advantages,such as small fluid resistance,simple structure,small volume,light weight,reliable saaling,convenience for operation and maintenance,open and close quickly,as well as start and close flexibly.

For the purpose of preventing the stem from flying off resulting in abnormal rising of the inner pressure of valve,shoulder is fixed at the lower part of the stem.In addition,in order to prevent leakage resulting from burnout of packing set of the stem in a fire,thrust bearing is set at the contact position of the shoulder at lower part of the stem and valve body.Thus an inverse seal seat is formed which will prevent leakage and avoid accident.

Oviko metal to metal seated ball valve owns not only various advantages of common industrial ball valves,but also particular and outstanding characteristics in heat-durability,especially when soft seal could not be used,such as in pipeline delivery of medium with high friction dust,slurry,and solid foreign matters mixture.

Product Name: Trunnion Ball Nominal Size: NPS 2"-16" (DN50-300) Pressure Rating: Class 150-600(PN20-100) Basic Material: ASTM A105,A350 LF2,A182 F304 A182 F316,A182 F6A,A182 F51 A182 F53,A564 630(17-4PH),Monel Coatings: *Nitridation *Nickel Plating *Chrome Plating *Tungsten Carbide *Spray Stellite *Spray Nickel Alloy *Spray Cobalt Alloy Etc.

Product Name: Floating Ball Nominal Size: NPS 2"-12" (DN50-300) Pressure Rating: Class 150-600(PN20-100) Basic Material: ASTM A105,A350 LF2,A182 F304 A182 F316,A182 F6A,A182 F51 A182 F53,A564 630(17-4PH),Monel Coatings: *Nitridation *Nickel Plating *Chrome Plating *Tungsten Carbide *Spray Stellite *Spray Nickel Alloy *Spray Cobalt Alloy Etc.

OVIKO forged ball valve,the forging material can ensure sufficient rigidity and strength under maximum rated operation pressure without inherent flaw of cast. Enough wall thikness of separate body and adaptation of high strength tie bolts are convenient for valve maintenance and sufficient to bear the stress of pipe.The internal parts of valve are carefully designed and selected to ensure reliability under all kinds of work condition.