描述
1.产品定位与核心功能
VALM-818418推测为高压动态响应型阀门定位器,定位油气管道紧急切断、消防系统流量调控及化工高压反应釜控制,聚焦毫秒级关断速度、抗振抗震设计与本质安全防爆。其核心功能包括:
控制性能:
-位置精度:±0.005%(全行程范围内,抗高压脉动干扰);
-响应时间:≤2ms(紧急关断模式)。
环境适应性:
-压力范围:真空至30MPa(兼容天然气超临界工况);
-抗震等级:IEC 60068-2-65(5g/5–2000Hz)。
2.关键技术参数
项目典型规格(参考同类产品)
输入/输出
-输入信号:4–20mA DC(支持FOUNDATION Fieldbus);
-输出类型:锻造碳钢阀体+碳化钨阀芯(硬度≥1500 HV);
供电要求
-电压范围:12–48V DC(宽压冗余设计);
-功耗:≤8W(峰值),休眠模式<0.02W;
通信接口
-数字总线:Modbus TCP/IP(工业物联网集成);
-无线扩展:NB-IoT(远程状态监控)。
3.功能特性
高压安全设计:
-结构强化:积分球墨铸铁阀体(爆破压力>45MPa);
-密封技术:组合式金属缠绕垫+氮气背压平衡(零泄漏等级)。
动态控制算法:
-自适应PID:基于压力脉动频率的主动抑制模型;
-故障逻辑:管道破裂时自动触发“故障关”模式(符合IEC 61508 SIL3)。
本质安全:
-防爆认证:ATEX Zone 0/IECEx Class I Div.1;
-能量限制:本质安全电路最大功率<0.5W(防点燃风险)。
4.典型应用场景
能源与管道:
-天然气trunkline紧急切断阀(耐10MPa超压);
-LNG低温泵出口调节阀(-162°C工况)。
化工与危化品:
-反应釜压力释放阀(耐环氧乙烷等易爆介质);
-高压水射流系统流量阀(流量稳定性±0.03%)。
消防与安全:
-消防栓自动控制阀(兼容NFPA 13标准);
-核电站应急冷却阀(抗震设计,耐Richter 8级地震)。

1.Product positioning and core functions
VALM-818418 is speculated to be a high-pressure dynamic responsive valve positioner,which locates emergency cutoff of oil and gas pipelines,fire protection system flow regulation and chemical high-pressure reactor control,focusing on millisecond-level shutdown speed,vibration and earthquake resistance design and inherent safety and explosion protection.Its core functions include:
Control performance:
-Position accuracy:±0.005%(within the entire stroke range,resisting high-pressure pulsation interference);
-Response time:≤2ms(emergency shutdown mode).
Environmental adaptability:
-Pressure range:vacuum to 30MPa(compatible with natural gas supercritical conditions);
-Seismic resistance level:IEC 60068-2-65(5g/5–2000Hz).
2.Key technical parameters
Project Typical specifications(refer to similar products)
Input/Output
-Input signal:4–20mA DC(supports FOUNDATION Fieldbus);
-Output type:Forged carbon steel valve body+tungsten carbide valve core(hardness≥1500 HV);
Power supply requirements
-Voltage range:12–48V DC(Wide voltage redundant design);
-Power consumption:≤8W(peak),sleep mode<0.02W;
Communication interface
-Digital bus:Modbus TCP/IP(Industrial Internet of Things Integration);
-Wireless extension:NB-IoT(Remote Status Monitoring).
3.Functional characteristics
High voltage safety design:
-Structural strengthening:integral ductile cast iron valve body(blasting pressure>45MPa);
-Sealing technology:Combined metal winding pad+nitrogen backpressure balance(zero leakage grade).
Dynamic control algorithm:
-Adaptive PID:Active suppression model based on pressure pulsation frequency;
-Fault logic:The”Fault Off”mode is automatically triggered when the pipeline breaks(compliant with IEC 61508 SIL3).
Intrinsically safe:
-Explosion-proof certification:ATEX Zone 0/IECEx Class I Div.1;
-Energy Limitation:The maximum power of intrinsic safety circuit is<0.5W(proof of ignition risk).
4.Typical application scenarios
Energy and Pipelines:
-Natural gas trunkline emergency shutoff valve(resistant to 10MPa overpressure);
-LNG cryogenic pump outlet regulating valve(-162°C operating condition).
Chemicals and hazardous chemicals:
-Reactor pressure release valve(resistant to explosive media such as ethylene oxide);
-High-pressure water jet system flow valve(flow stability±0.03%).
Fire and Safety:
-Fire hydrant automatic control valve(compatible with NFPA 13 standard);
-Nuclear power plant emergency cooling valve(seismic design,resistant to Richter 8 earthquakes).

