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In the closed position the pressure of the fluid presses the ball against the seal, further ensuring the integrity of the seal. In principle, the higher the pressure, the better the seal
Reliability
- the ball is sealed on both sides by graphite impregnated rilsan seals which are supported by perbunan compensating “O” rings. This ensures that the seal remains in contact with the ball at all times thus
extending the life of the ball valve by preventing leakage should seal wear occur.
- the stem is firmly secured within a square insert on the ball and is sealed by an “O” ring.
In order to meet industry’s requirements, Legris offers 3 other series of ball valves in addition to its standard range
- light series, for low pressure applications
- teflon series, for maximum working pressure
- stainless steel series, for use with corrosive fluids and aggressive environments
Technical Specification
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Fluid
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Contact us for more details
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Working Pressure
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Up to 10 bar20 to 40 bar according to model
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Temperatures
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-20°C to +80°C
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Material
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Body: Sand blasted nickel plated brass
Ball: polished brass
Stem: Brass
Retaining Nut: brass
Ball Seal: Graphite impregnated rilsan
Stem Seal: Nitrile
Compensating “O” rings: Nitrile
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Wide Range
- various porting configurations : in-line, right angled, 2-way, 3-way
- additional features : vented, panel mounting, lockable, compression connection
- large range of bore sizes from 4 to 50mm
- threade connection from G1/8 to G2
Long Life
- Legris ball valves provide many thousands of trouble free operations due to the “O” rings compensating for seal wear
High Performance
- full sealing due to compensatingg “O” rings
- smooth operation due to low friction coefficient of chemically nickel-plated brass
- excellent resistance to scaling due to ball seal configuration
Additional Models to meet Industry’s Requirements
- semi-standard ball valve, for special requirements
- light series ball valve, for low pressure applications
- teflon series ball valves, for maximum working pressure
- stainless steel ball valves, for corrosive fluids and aggressive environments
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