pneumatic flow control valve symbol

{"title":"Rexroth Direction Valve 4WP6D6X\/N For Compatibility With Specific Requirements","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/d4\/2e\/71d2c5f402c0dde2bb40776d3244-200x200-1.jpg","attrs":{"Price":"RMB\/1000-10000\/PC","Brand Name":"Rexroth","Model Number":"4WP6D6X\/N","Minimum Order Quantity":"1","Delivery Time":"3days","Certification":"cc","Place of Origin":"Germany","Payment Terms":"T\/T","Supply Ability":"10PCS\/days","Packaging Details":"wooden case\/carton","Brand":"Rexroth","Model":"4WP6D6X\/N","Spool symbol":"Symbol D","Max. pressure":"315","Productgroup ID":"9,10,11,12,13,14","Number of ports":"4","Type of actuation":"with pneumatic actuation","Size":"6"}}

{"title":"Manual 3\/2-way On \/ Off Piston Gate Valve HE-D-MINI 170681 GTIN4052568013059","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/84\/e7\/8f4705520e6a8e228dd1509ff188-200x200-1.jpg","attrs":{"Price":"EXW USD30-40","Brand Name":"FESTO","Model Number":"HE-D-MINI","Minimum Order Quantity":"1pc","Delivery Time":"5-7working days","Place of Origin":"China","Payment Terms":"T\/T, Western Union, Paypal","Supply Ability":"500 pcs per month","Packaging Details":"Plastic bag, Carton","Type":"HE-D-MINI","Part no":"170681","Brand":"FESTO","Type of actuation":"Manual","Design":"Piston gate valve","Valve function":"3\/2 double solenoid"}}