AS 轴流式安全切【qiē】断阀【fá】AS axial on-off valve,轴【zhóu】流式:是指流【liú】体【tǐ】到控【kòng】制【zhì】区以前在阀【fá】的内体和外【wài】体之【zhī】间有一轴向对称【chēng】的流道 ,有呈流线型并均匀对称的自 由流通路径,大大【dà】降低了流体局部高速流、紊【wěn】流、喷射流等【děng】的冲击,且提高【gāo】了阀门的【de】稳定性 .
公称尺寸 Nominal size |
NPS8~48 |
公称压力 Nominal pressure |
Class600~2500 |
阀体材料 Body material |
A352 LCC,A350 LF2 |
执行标准 Standard |
IEC 60534 |
关断时间 On-off time |
≤ 2S |
适用介质 Suitable medium |
天然气、液化气、石油及液化化工品 |
适用温度 Suitable temperature |
-46℃~ +150℃ |
泄漏等级 Leakage |
符合 FCI-9-21,IEC 60534-4 VI 级 In accordace with FCI-9-21,IEC 60534-4 VI |
应 用 Application |
用于长输管线输油、输气站、调压站、用于紧急情况下的快速切断 Long-distance pipeline oil, gas stations, pressure regulat- ing stations for export pressure quickly shut off |
执行机构 Actuator |
气动、液压弹簧复位执行机构 Pneumatic,spring-hydraulic linkage |
@ 产品特点【diǎn】 / Product feature:
轴流式:是指流【liú】体到控制区以前在【zài】阀的内体【tǐ】和外体之间有一【yī】轴向对【duì】称的【de】流道 ,有呈流线型并【bìng】均匀对称的自【zì】 由流通路径,大大降【jiàng】低了流体【tǐ】局部高速流、紊流、喷【pēn】射【shè】流等的冲【chōng】击,且提高【gāo】了阀门的【de】稳定性 .
“Axial flow”describes the in-line symmetrical flow path between the valve inner and outer body
before the flow reaches the trim zone,with the free flow path was streamlined and symmetrical,
reducing the local high speed flow of the fluid,turbulence flow jet stream, such as shock, and to
improve the stability of the valve.
1、轴【zhóu】流式安【ān】全切断阀在高集成【chéng】压力【lì】保护【hù】系统(HIPPS)中【zhōng】用于保护低压力等级避免超压,通【tōng】过切断压力界面来【lái】 避免超压。
Axial on-off valves in HIPPS applications high integrity pressure protecting systems (HIPPS)
are used to protect lower rated downstream sections from overpressure, by isolating these
sections from the source of the overpressure.
2、轴流式,流通能力高且压降低。
Axial flow type, high capacity and low pressure drop.
3、切断时间【jiān】快【kuài】,≤36" 的阀门均可以 2 秒【miǎo】切断,≤ 12" 的 阀【fá】门【mén】可在 1 秒【miǎo】内切断。 Fast shut off, the valves ≤36" shut off within 2s and ≤ 12" within 1s.
4、全压力平衡阀芯。
Mechanically fully pressure balanced design.
5、在阀【fá】门全开位置主密封自动保【bǎo】护尽可能的避免【miǎn】了【le】高速介质的冲刷破坏。另外,主【zhǔ】密封在行【háng】程【chéng】中【zhōng】不与其它【tā】 部件【jiàn】接触。
Main seal is protected from erosional velocities in the open position. Furthermore the main seal
is not in contact with other parts during the stroke of the valve.
6、线【xiàn】性【xìng】的活塞式弹簧关执行机【jī】构,通过多层弹【dàn】簧关【guān】闭动作具有很高的安【ān】全可靠性【xìng】。
Rugged linear piston actuator, closing action by means of multiple parallel springs,have high
reliability.
7、活【huó】塞式弹簧关【guān】自驱【qū】动式执行机【jī】构不需要任何外部动力源,保证【zhèng】阀门动【dòng】作【zuò】的安全性【xìng】和【hé】可靠性,并且节能 环保。
Self-contained piston actuator with failing close function selected for this project to ensure
valve action safety and reliability, furthermore energy saving and environmental protection.
8、轴流式切【qiē】断阀已在世界范【fàn】围内得到认可,广泛 应用【yòng】于气液【yè】场【chǎng】合【hé】,包括气【qì】液的处理、输送 、储存 和分配过程。这些气液流体【tǐ】可【kě】以从原油到成品 油【yóu】, 从气【qì】液比很【hěn】高的【de】多相流【liú】体【tǐ】到含砂量极高的 天然气【qì】。
Axial on-off valves combine high quality engineering with a thorough understanding of the needs of the oil and gas produc-tion, process industries and companies involved with transmission, distribution and storage of fluids.
@ 应用范【fàn】围 / Application
典型 HIPPS 系统
Typical HIPPS system
典型 HIPPS 系统由以下三部分组成:
Typical HIPPS system includes the following three parts.
● 最终【zhōng】执行元件 Final element
● 逻辑控制器【qì】 Logic solver● 检测仪表 Sensors