single acting positioner fail lock torleo

{"cid":"91193271","title":"Corrugated Pipe Control Valve With Masoneilan SVI3 Digital Valve Positioner And Masoneilan 78-40 Filter Regulator","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/9f\/43\/488cfd1d332b042a6773788fde4e-200x200-1.jpg","attrs":{"Price":"2200USD~2700USD","Brand Name":"Masoneilan","Model Number":"SVI3 Digital Valve Positioner","Minimum Order Quantity":"1","Delivery Time":"4~8 work week","Place of Origin":"China","Packaging Details":"Based on demand","Payment Terms":"T\/T","Supply Ability":"50PCS\/Month","Signal - Communication":"HART 7 Over 4-20mA","Supply Pressure":"20 To 120psi","Construction \/ Materials":"Copper-free Aluminum Housing","Diagnostics":"Positioner Diagnostics;Advanced Diagnostics;Online Valve Diagnostics","Material":"Aluminum \/stainless Steel","Operating Temperature":"-55\u00b0C To +85\u00b0C"}}

{"cid":"91221431","title":"6DR5212-0EM01-0AA1 Siemens PLC Smart SIPART PS2 Electrical Positioner Original Module","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/b8\/e5\/8fff5fed24cea178a39b07501130-200x200-1.jpg","attrs":{"Price":"$400.00 - $600.00\/pieces","Brand Name":"Simens","Model Number":"6DR5510-0NG30-0AA0","Minimum Order Quantity":"2 pieces","Delivery Time":"7-14 days","Place of Origin":"Shaanxi, China","Payment Terms":"T\/T","Supply Ability":"100 pc 1 week","Application":"General","Port Size":"1\/4 NPT","Warranty":"1 year","Power":"Electric","Temperature of Media":"High Temperature, Low Temperature, Medium Temperature, Normal Temperature","Structure":"Control","Media":"Gas","Customized support":"OEM, ODM","Product Name":"Electric valve positioner","MOQ":"1","Type":"Electric valve positioner"}}