Overview Of Ball Valve

Ball Valve Is A Type Of Valve That Emerged In The 1950s. In Half A Century, Ball Valve Has Developed Into A Major Type Of Valve. Ball Valves Are Mainly Used To Cut Off Or Connect Media, And Can Also Be Used For Fluid Regulation And Control. V-shaped Ball Valves Can Achieve More Accurate Flow Regulation And Control, While Three-way Ball Valves Are Used To Distribute Media And Change The Flow Direction Of Media. Compared With Other Types Of Valves, Ball Valves Have The Following Advantages.

1. Low Fluid Resistance, Ball Valve Is One Of The Valves With Relatively Low Fluid Resistance, Even For Reduced Diameter Ball Valves, Its Fluid Resistance Is Quite Small.

2. The Switch Is Fast And Convenient. As Long As The Valve Stem Rotates 90 °, The Ball Valve Completes The Fully Open Or Fully Closed Action, Making It Easy To Achieve Rapid Opening And Closing.

3. Good Sealing Performance. The Sealing Ring Of The Ball Valve Seat Is Generally Made Of Elastic Materials Such As Polytetrafluoroethylene, Which Is Easy To Ensure Sealing, And The Sealing Force Of The Ball Valve Increases With The Increase Of Medium Pressure.

4. The Valve Stem Seal Is Reliable. When The Ball Valve Is Opened And Closed, The Valve Stem Only Rotates, So The Packing Seal Of The Valve Stem Is Not Easily Damaged, And The Sealing Force Of The Valve Stem Reverse Seal Increases With The Increase Of Medium Pressure.

5. The Opening And Closing Of The Ball Valve Can Only Rotate 90 Degrees, Making It Easy To Achieve Automation And Remote Control. The Ball Valve Can Be Equipped With Pneumatic, Electric, Hydraulic, Pneumatic Hydraulic Or Electro-hydraulic Linkage Devices.

6. The Ball Valve Channel Is Flat And Smooth, Not Easy To Deposit Media, And Can Be Used For Pipeline Ball Passing.  

Our Company Has Accumulated Rich Experience In The Design, Manufacturing, And Quality Control Of Ball Valves. Our Products Include Floating Ball Valves, Fixed Ball Valves, Metal Hard Sealed Ball Valves, Integral Ball Valves, V-shaped Ball Valves, Three-way Ball Valves, Clamp Connected Ball Valves, Insulation Jacket Clamp Connected Ball Valves, Insulation Jacket Flange Connected Ball Valves, Internally Threaded Ball Valves, High-pressure Forged Ball Valves, And Other Series Of Products.

The Parameters And Standards For Our Company's Ball Valves Are Shown In The Table Below.

Product Structure, Functions, And Features

Our Company Has Accumulated Rich Experience In Valve Design, Manufacturing, And Quality Control, Especially In The Research And Exploration Of Ball Valves For Many Years. Not Only Have We Made Multiple Improvements To The Structure Of The Ball Valve, But We Have Also Developed Some New Products. The Ball Valves Produced By Our Factory Mainly Have The Following Structures, Functions, And Characteristics.

Clamp Series Ball Valve

Compared With Ordinary Products, Clamp Ball Valves And Clamp Insulated Jacket Ball Valves Have The Advantages Of Short Structural Length, Light Weight, Easy Installation, And Material Saving.

Reliable Sealing Of Valve Seat

The Floating Ball Valve Adopts A Double Inclined Elastic Sealing Ring Or V-shaped Groove Elastic Sealing Ring Structure Design. When The Medium Pressure Is Low, The Contact Area Between The Sealing Ring And The Sphere Is Small, So There Is A Larger Sealing Pressure Ratio To Ensure Reliable Sealing. When The Medium Pressure Is High, The Contact Area Between The Sealing Ring And The Ball Valve Increases, So The Sealing Ring Can Withstand A Large Medium Thrust Without Being Damaged.

For Ball Valves With Low Working Pressure, Considering That The Medium Pressure Cannot Ensure Reliable Sealing Of The Valve Seat, And The Pre Tightening Force Will Decay After Long-term Use, A Plate Spring Loaded Valve Seat Sealing Structure Is Adopted For Ball Valves Used In Low Pressure, Ultra-low Pressure Or Vacuum Conditions To Ensure Long-term Reliable Sealing Of The Ball Valve.

The Fixed Ball Valve Selects The Ball Front Sealing Structure, Ball Back Sealing Structure, Or Ball Front And Rear Double Sealing Structure According To The Pressure, Medium Properties, And Sealing Requirements.

Reliable Sealing Of Valve Stem

The Valve Stem Adopts A Bottom Mounted Structure With A Reverse Seal, And The Sealing Force Of The Reverse Seal Increases With The Increase Of Medium Pressure, Ensuring The Reliable Sealing Of The Valve Stem. Moreover, When The Valve Chamber Is Under Constant Pressure, The Valve Stem Will Not Be Flushed Out. The Valve Stem Adopts A Well-designed V-shaped Packing, Which Can Effectively Convert The Clamping Force And Dielectric Pressure Of The Packing Cover Into The Sealing Force Of The Valve Stem.

Flexible And Reliable Operation

A Set Of Reinforced Polytetrafluoroethylene With Low Friction Coefficient Is Installed In Parts With Relative Motion (such As Valve Stem And Valve Body, Valve Stem And Packing Pressure Sleeve), Which Accidentally Reduces The Operating Torque, Makes Opening And Closing More Flexible, And Avoids Scratches Between Metal Parts.

Fire Resistant Structure

According To User Needs, Ball Valves Can Be Designed With Fire-resistant Structures. In The Event Of A Fire Causing The Soft Sealing Ring Such As Polytetrafluoroethylene To Burn Out, The Ball Valve Can Still Operate Reliably And Have Good Sealing Performance To Prevent The Expansion Of The Fire. The Fire-resistant Structure And Performance Requirements Of The Ball Valve Comply With The Provisions Of AP1607 And JB/T6899 Standards.

Anti Static Structure

According To User Requirements, Ball Valves Can Be Designed With Anti-static Structures. Using A Spring Plunger Type Electrostatic Discharge Device, An Electrostatic Channel Is Formed Between The Ball And The Rod, As Well As Between The Valve Stem And The Valve Body. To Achieve The Goal Of Eliminating Static Electricity Accumulation.

Full Diameter Series And Reduced Diameter Series

Our Ball Valves Generally Come In Two Series: Full Bore And Reduced Bore, To Meet The Different Needs Of Users. The Channel Inner Diameter Of The Full Bore Ball Valve Is Consistent With The Inner Diameter Of The Pipeline, With Low Fluid Resistance And Easy Pipeline Cleaning. The Weight Of The Reduced Diameter Series Ball Valve Is Only About 70% Of That Of The Same Diameter Full Bore Ball Valve, Which Can Effectively Reduce Costs And Prices. Its Fluid Resistance Is Only About 1/7 Of That Of The Same Diameter Globe Valve, So The Reduced Diameter Ball Valve Has Been Widely Used.

Prevent Accidental Operation

A 90 ° Switch With A Hole Positioning Piece Is Set Up, Which Can Be Locked As Needed To Prevent Accidental Operation.

V-shaped Ball Valve

Our Factory Has Developed A Hard Sealed V-shaped Ball Valve, Which Has A Strong Shear Force Between The V-shaped Core And The Metal Valve Seat Made Of Cut And Welded Hard Alloy. It Is Particularly Suitable For Media Containing Lead, Small Solid Particles, Slurry, Etc.

Automatic Pressure Relief Structure

When The Liquid Medium Trapped In The Valve Chamber Vaporizes Due To An Increase In Temperature, Resulting In An Abnormal Increase In Pressure In The Chamber, The Medium In The Chamber Can Automatically Release Pressure By Pushing The Valve Seat With Its Own ThrustTo Ensure The Safety Of The Valve Body.

Seat Sealing Structure Of Medium And High Temperature Ball Valves

The Use Of Para Polystyrene As A Sealing Ring Can Be Used For Temperatures Up To 300 ℃, While Ball Valves Designed With Metal Sealed High-temperature Resistant Composite Materials Can Be Used For Higher Temperatures.

Low Temperature Ball Valve

In Order To Prevent The Failure Of The Valve Stem Packing Seal Under Low Temperature Conditions, The Low-temperature Ball Valve Adopts A Long Neck Structure Design. The Valve Seat Adopts A Structural Design With Automatic Pressure Relief Function To Prevent Abnormal Pressure Rise Of The Medium In The Valve Chamber Due To Temperature Rise. Strictly Control The Chemical Composition And Mechanical Performance Indicators Such As Low-temperature Impact Toughness Of Materials.

Parameters, Materials, And Standards

Our Products Can Be Manufactured According To Various Standards, With A Complete Range Of Series And Varieties, Which Can Meet The Needs Of Various Engineering Projects And User Requirements.