Vรกlvulas, Normas de Fabricaciรณn Ing. Juan Carlos Sua
Temario. • Introducción • Clasificación de válvulas y normas de diseño aplicables • Criterios de diseño: Normas de Fabricación.
¿Qué es una Válvula? Es un dispositivo mecánico que sirve para administrar el paso de un fluido en un proceso.
De acuerdo a su función pueden ser: •DE BLOQUEO (ON-OFF) •REGULACIÓN: Controlar Diferentes variables como Q, P, T°, etc. •RETENCIÓN.
Clasificación de válvulas y normas de diseño aplicables • • • • • •
Gate valves (API 600, API 602, API 603, ASME B16.34) Ball valves (API 608, API 6D, ASME B16.34). Plug valves (API 599, API 6D). Butterfly valves (API 609). Check valves (API 594, API 602, BS1868). Globe valves (API 623, API 602, BS 1873, ASME B16.34).
Válvulas de Compuerta • • • •
ASME B16.34: Valves - Flanged, Threaded, and Welding End. API 600: Steel Gate Valves - Flanged and Butt-Welding Ends, Bolted Bonnets. API 6D: Specification for Pipeline Valves. API 602: Steel Gate, Globe, and Check Valves for Sizes NPS 4 (DN 100) and Smaller for the Petroleum and Natural Gas Industries. • API 598: Valve Inspection and Testing. • API 607/6FA: Testing of Valves - Fire Type Testing Requirements.
Vรกlvulas de Compuerta-Tipos de Obturador:
API 6D Slab Gate API 600 Flexible Wedge API 602 SolidWedge
API 6D Double Expanding Wedge
Fuente: API 600: Steel Gate Valves - Flanged and Butt-Welding Ends, Bolted Bonnets.
Fuente: API 602: Steel Gate, Globe, and Check Valves for Sizes NPS 4 (DN 100) and Smaller for the Petroleum and Natural Gas Industries.
Fuente: API 6D Specification for Pipeline and Piping Valves
Válvulas Check • ASME B16.34: Valves - Flanged, Threaded, and Welding End.API 594: Check Valves: Flanged, Lug, Wafer, and Butt-Welding. • BS 1868: steel Check Valves (Flanged and Butt-Welding Ends) for the Petroleum, Petrochemical and Allied Industries. • API 6D: Specification for Pipeline Valves. • API 602: Steel Gate, Globe, and Check Valves for Sizes NPS 4 (DN 100) and Smaller for the Petroleum and Natural Gas Industries. • API 598: Valve Inspection and Testing. • API 607/6FD: Testing of Valves - Fire Type Testing Requirements.
BS 1868 o API 594
API 6D
BS 1868 vs API 594
BS 1868 vs API 594
Válvulas Globo: • ASME B16.34: Valves - Flanged, Threaded, and Welding End. • BS 1873: Steel Check Valves (Flanged and Butt-Welding Ends) for Petroleum, Petrochemical and Allied Industries. • API 623: Steel Globe Valves - Flanged and Butt-Welding Ends, Bolted Bonnets. • API 602: Steel Gate, Globe, and Check Valves for Sizes NPS 4 (DN 100) and Smaller for the Petroleum and Natural Gas Industries. • API 598: Valve Inspection and Testing. • API 607: Testing of Valves - Fire Type Testing Requirements.
Fuente: API 623: Steel Globe Valves - Flanged and Butt-Welding Ends, Bolted Bonnets.
Válvulas Bola: • ASME B16.34: Valves - Flanged, Threaded, and Welding End.API 608 “Metal Ball Valves—Flanged, Threaded, and Welding Ends”. • Norma API 608 “Metal Ball Valves—Flanged, Threaded, and Welding Ends”. • BS 5351 “Specification for Steel Ball Valves for the Petroleum, Petrochemical and Allied Industries”. • API 6D “Specification for Pipeline and Piping Valves”. • API 598 “Valve Inspection and Testing” • API 607/6FA: Testing of Valves - Fire Type Testing Requirements.
Consideraciones a tener en cuenta para válvulas API 608 • No hace referencia a la Norma EN10204 “Metallic Products- Types of Inspection Documents”. • No menciona Injection Points. • No menciona valve Cavity Pressure Relief. • No requiere monograma API. • Aplica NACE MR0103.
Consideraciones a tener en cuenta para vรกlvulas API 6D - Double Block and Bleed (DBB) Valves. - Double Isolation and Bleed DIB-1 (Both Seats Bidirectional). - Double Isolation and Bleed DIB-2 (One Seat Unidirectional and One Seat Bidirectional)
Consideraciones a tener en cuenta para vรกlvulas API 6D
Materiales para asientos de vรกlvulas API 608 y API 6D Material
PTFE
RPTFE NYLON 12 DEVLON V
PEEK
PCTFE
Temp. Range( Class Range at full pressure CL150
-50~200
CL300
-50~170
CL600 / 800
-50~120
CL150/300
-196~200
CL600/800
-196~150
CL150~1500
-50~120
CL150~1500
-50~150
CL2500
-50~50
CL150~900
-100~275
CL1500
-100~250
CL2500
-100~177
CL150~600
-196~150
CL900
-196~120
CL1500
-196~80
)
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