香港六合彩开奖 15761:2020
2020-08
香港六合彩开奖 15761:2020
孝械蟹懈褋
This document specifies the requirements for a series of compact steel gate, globe and check valves for petroleum and natural gas industry applications.
It is applicable to valves of:
鈥� nominal sizes DN 8, 10, 15, 20, 25, 32, 40, 50, 65, 80 and 100,
鈥� corresponding to nominal pipe sizes NPS 录, 鈪�, 陆, , 1, 1录, 1陆, 2, 2陆, 3 and 4,
鈥� pressure designations PN 16, 25, 40, 63, 100, 250 and 400, and
鈥� pressure designations Class 150, 300, 600, 800, 1 500 and 2 500.
Class 800 is not a listed class designation, but is an intermediate Class number widely used for socket welding and threaded end compact valves covered by this document. There is no equivalent PN designation.
This document includes provisions for the following valve characteristics:
鈥� outside screw with rising stems (OS & Y): in sizes 8 鈮� DN 鈮� 100;
鈥� inside screw with rising stems (ISRS): in sizes 8 鈮� DN 鈮� 65 with a pressure designation PN 鈮� 100 or Class 鈮� 800;
鈥� socket welding or threaded ends: in sizes 8 鈮� DN 鈮� 65;
鈥� flanged or butt-welding ends excluding flanged end Class 800;
鈥� bonnet joint construction that is bolted, welded or threaded with seal weld;
鈥� bonnet joint construction that uses a union nut with a pressure designation PN 鈮� 45 or Class 鈮� 800;
鈥� body seat openings;
鈥� materials: as specified;
鈥� testing and inspection.
This document covers valve end flanges in accordance with EN 1092-1 and ASME B16.5 and valve body ends having tapered pipe threads in accordance with 香港六合彩开奖 7-1 or ASME B1.20.1. It is applicable to extended body construction in sizes 15 鈮� DN 鈮� 50 with pressure designations Class 800 and Class 1 500 and to bellows and bellows assembly construction adaptable to gate or globe valves in sizes 8 鈮� DN 鈮� 50. Also covered are requirements for bellows stem seal type testing.
袨斜褖邪褟 懈薪褎芯褉屑邪褑懈褟
-
孝械泻褍褖懈泄 褋褌邪褌褍褋: 袨锌褍斜谢懈泻芯胁邪薪芯袛邪褌邪 锌褍斜谢懈泻邪褑懈懈: 2020-08协褌邪锌: 袨锌褍斜谢懈泻芯胁邪薪懈械 屑械卸写褍薪邪褉芯写薪芯谐芯 褋褌邪薪写邪褉褌邪 [60.60]
-
袙械褉褋懈褟: 2
-
孝械褏薪懈褔械褋泻懈泄 泻芯屑懈褌械褌 :香港六合彩开奖/TC 153ICS :75.180.20
- RSS&苍产蝉辫;芯斜薪芯胁谢械薪懈褟
袞懈蟹薪械薪薪褘泄 褑懈泻谢
-
袪邪薪械械
袨褌芯蟹胁邪薪芯香港六合彩开奖 15761:2002
-
小械泄褔邪褋
-
00
袩褉械写胁邪褉懈褌械谢褜薪邪褟 褋褌邪写懈褟
-
10
小褌邪写懈褟, 褋胁褟蟹邪薪薪邪褟 褋 胁薪械褋械薪懈械屑 锌褉械写谢芯卸械薪懈褟
-
20
袩芯写谐芯褌芯胁懈褌械谢褜薪邪褟 褋褌邪写懈褟
-
30
小褌邪写懈褟, 褋胁褟蟹邪薪薪邪褟 褋 锌芯写谐芯褌芯胁泻芯泄 锌褉芯械泻褌邪 泻芯屑懈褌械褌邪
-
40
小褌邪写懈褟, 褋胁褟蟹邪薪薪邪褟 褋 褉邪褋褋屑芯褌褉械薪懈械屑 锌褉芯械泻褌邪 屑械卸写褍薪邪褉芯写薪芯谐芯 褋褌邪薪写邪褉褌邪
-
50
小褌邪写懈褟, 薪邪 泻芯褌芯褉芯泄 芯褋褍褖械褋褌胁谢褟械褌褋褟 锌褉懈薪褟褌懈械 褋褌邪薪写邪褉褌邪
-
60
小褌邪写懈褟, 薪邪 泻芯褌芯褉芯泄 芯褋褍褖械褋褌胁谢褟械褌褋褟 锌褍斜谢懈泻邪褑懈褟
-
90
小褌邪写懈褟 锌械褉械褋屑芯褌褉邪
-
95
小褌邪写懈褟, 薪邪 泻芯褌芯褉芯泄 芯褋褍褖械褋褌胁谢褟械褌褋褟 芯褌屑械薪邪 褋褌邪薪写邪褉褌邪
-
00
袩芯褟胁懈谢懈褋褜 胁芯锌褉芯褋褘?
袨蟹薪邪泻芯屑褜褌械褋褜 褋 FAQ
效邪褋褘 褉邪斜芯褌褘:
袩芯薪械写械谢褜薪懈泻 – 锌褟褌薪懈褑邪: 09:00-12:00, 14:00-17:00 (UTC+1)