描述
1.产品定位与核心功能
VALM-818144推测为强腐蚀介质兼容型阀门定位器，定位极端化学环境下的高可靠性控制，聚焦哈氏合金C-276阀体、自修复聚合物涂层与分布式电化学传感。其核心功能包括：
控制性能：
-位置精度：±0.09%（全行程范围内，亚微米级分辨率）；
-响应时间：≤20ms（阶跃信号响应，耐腐蚀优化型）。
环境适应性：
-防护等级：IP68（长期浸没防护）；
-介质兼容性：耐浓硫酸/液氯/海水（ASTM G71-17达标）。
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HART、Modbus RTU）；
-输出类型：磁阻同步电机+柔性齿轮减速；
供电要求
-电压范围：24–240V AC/DC（宽压工业兼容）；
-功耗：≤10W（峰值），休眠模式0.1W；
通信接口
-数字总线：EtherNet/IP、Profibus DP；
-无线扩展：LoRaWAN远程诊断（10km无盲区覆盖）。
3.功能特性
耐腐蚀突破：
-阀体材料：哈氏合金C-276+钽喷镀（耐王水侵蚀）；
-自修复涂层：聚苯并咪唑基复合材料（损伤后48小时自愈）。
智能监测系统：
-电化学阻抗谱：实时评估介质腐蚀性（预警精度>95%）；
-漏率检测：电容层析成像（CTI）非侵入式泄漏定位。
安全设计：
-双密封冗余：串联金属密封+PTFE软密封（双失效防护）；
-在线清洗：超声波振荡模块（抑制结垢，兼容PID调节）。
1.Product positioning and core functions
VALM-818144 is speculated to be a highly corrosive medium-compatible valve positioner,which locates high reliability control in extreme chemical environments,focusing on Hastelloy C-276 valve body,self-healing polymer coating and distributed electrochemical sensing.Its core functions include:
Control performance:
-Position accuracy:±0.09%(within the entire travel range,submicron resolution);
-Response time:≤20ms(step signal response,corrosion-resistant and optimized type).
Environmental adaptability:
-Protection level:IP68(long-term immersion protection);
-Media compatibility:Resistance to concentrated sulfuric acid/liquid chlorine/seawater(ASTM G71-17 meets the standard).
2.Key technical parameters
Project Typical specifications(refer to similar products)
Input/Output
-Input signal:4–20mA DC(supports HART,Modbus RTU);
-Output type:magnetoresistive synchronous motor+flexible gear reduction;
Power supply requirements
-Voltage range:24–240V AC/DC(Wide voltage industrial compatible);
-Power consumption:≤10W(peak),sleep mode 0.1W;
Communication interface
-Digital bus:EtherNet/IP,Profibus DP;
-Wireless expansion:LoRaWAN remote diagnosis(10km no blind spot coverage).
3.Functional characteristics
Corrosion resistance breakthrough:
-Valve body material:Hastelloy C-276+tantalum spraying(resistant to water regia);
-Self-healing coating:polybenzimidazolyl composite material(self-healing 48 hours after injury).
Intelligent monitoring system:
-Electrochemical impedance spectrum:Real-time assessment of the corrosion of the medium(early warning accuracy>95%);
-Leakage rate detection:Capacitive tomography(CTI)non-invasive leakage location.
Safety design:
-Double seal redundancy:series metal seal+PTFE soft seal(double failure protection);
-Online cleaning:Ultrasonic oscillation module(scaling inhibits,compatible with PID adjustment).
