Royal Sales Corporation
Ball Valves
Floating Ball Valves
Size
1/4" to 8" (8 mm to 200 mm)
ASME Class
Class 150 to 2500
Design Standard
ISO 17292, API 608, API 6D
L&T Valves manufactures a versatile range of Process Ball Valves in single, two and three piece constructions. The valves are available in full-bore and regular-bore designs, in a variety of end connections and materials to suit customer requirements.
The valves are of floating-ball design where the ball moves towards the downstream seat, under pressure, to effect a tight seal.
Salient Features:
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Fire-safe to ISO 10497 and API 607
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Mirror-finished solid stainless ball
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Fine-grained PTFE seats
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Cavity Pressure Relief mechanism
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Blowout-proof stem
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High integrity stem sealing – Belleville springs compensate for wear and expansions
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Antistatic feature
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Actuator-mounting flange conforms to ISO 5211
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SIL3 Safety Integrity Level for Automated Valves
Versatile Range:
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Single, two and three piece construction
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Full-bore and regular-bore designs
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Soft and metal-seated
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Offered in carbon steel, stainless steel and duplex stainless steels
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Screwed, socket-weld and flanged ends
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ASME classes up to 2500
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Variety of actuation options
GALLERY
Trunnion-mounted Ball Valves
Size
2" to 56" (50 mm to 1400 mm)
ASME Class
Class 150 to 2500
Design Standard
API 6D
Beyond Standards:
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Trunnion-mounted Ball Valve design complies to API 6D
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Valves offered with API 6D monogram
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Wide portfolio of Side-entry and Top-entry designs
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Fugitive emissions - Soft and Metal seated valves complies to ISO 15848-1, Class AH and BH
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Stem seal configurations tested to API 622 at Yarmouth Research labs, Maine, USA
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Firesafe design - Tested to API 607 and API 6FA
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CE Marking - Meets requirements of Pressure Equipment Directive 2014/68/EU, Annexure III, Module H
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PED Module B1 Design examination certificate (certified by DNV) available
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Atex - Meets requirements of Atex Directive 94/9/EC (ATEX), category 2 non-electrical equipment
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SIL3 - Safety Integrity Level SIL 3 certification to IEC 61508, certified by Exida/ TUV
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Valves successfully tested to Shell Design Evaluation Test, Procedure 77/300 for temperature -29 to 150 degree C (O rings) and -50 to 150 degree C (Lip seals).
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Pneumatic shell test conducted at 1.1 times rated pressure to check shell integrity, when required
Features that Add Value:
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Double block and bleed (DBB) feature - Valves are designed and tested for automatic cavity relief
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Anti-blowout stem design
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Coil springs used for consistent seat loading and lower operating torque
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Lip seals provided for low temperature services
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2/3 stage Stem and 2 stage Body Joint sealing system; Primary O ring and Secondary graphite (in 3 stage stem, thrust washer is primary)
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Where tight shut off is required, Double piston effect (DPE) seats provided for redundancy in sealing
Versatile Solutions:
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Wide portfolio of Side-entry and Top-entry designs
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Options: Buried service, Cryogenic
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Offered with Electric, Pneumatic and Hydraulic Actuators
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In-house Tests Capabilities - Cryogenic Test, Pipe Bending Test, Vacuum Test and Fast Closure Test
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ValvTrac™ RFID tagging offered for reliable digital traceability
GALLERY
