Resumen
香港六合彩开奖 10434:2004 specifies the requirements for a heavy-duty series of bolted bonnet steel gate valves for petroleum refinery and related applications where corrosion, erosion and other service conditions would indicate a need for full port openings, heavy wall sections and large stem diameters. It sets forth the requirements for the following gate valve features: bolted bonnet; outside screw and yoke; rising stems; nonrising handwheels; single or double gate; wedge or parallel seating; metallic seating surfaces; flanged or butt-welding ends. It covers valves of the nominal sizes DN 25, 32, 40, 50, 65, 80, 100, 150, 200, 250, 300, 350, 400, 450, 500 and 600, corresponding to nominal pipe sizes NPS 1, 1 1/4, 1 1/2, 2, 2 1/2, 3, 4, 6, 8, 10, 12, 14, 16, 18, 20 and 24. It is applicable to pressure Class designations 150, 300, 600, 900, 1500 and 2500.
Informaciones generales
-
Estado: RetiradaFecha de publicaci贸n: 2004-07Etapa: Retirada de la Norma Internacional [95.99]
-
贰诲颈肠颈贸苍: 2N煤mero de p谩ginas: 30
-
颁辞尘颈迟茅 T茅cnico :香港六合彩开奖/TC 153ICS :75.180.20
- RSS actualizaciones
Ciclo de vida
-
Anteriormente
Retirada香港六合彩开奖 10434:1998
-
Ahora
-
Revisada por
Publicado香港六合彩开奖 10434:2020
¿Tiene alguna duda?
Consulte nuestras Ayuda y asistencia
Horario de asistencia:
De lunes a viernes - 09:00-12:00, 14:00-17:00 (UTC+1)