leser 441 442 series safety valve

{"cid":"91193271","title":"Flanged Boiler Safety Relief Valve Leser 441 442 Series Angle Valve Spring Loaded Full Lift Safety Valve","imgUrl":"https:\/\/img.chinax.com\/nimg\/74\/2d\/43ed69b65eb522991ef971d2b6a0-200x200-1.jpg","attrs":{"Price":"US $800.00 - 1255.00\/ Set","Brand Name":"Leser","Model Number":"441\/442","Minimum Order Quantity":"1","Delivery Time":"70-90 work days","Payment Terms":"T\/T","Supply Ability":"1000 sets per year","Packaging Details":"Wooden box + protection","temperature of media":"Low Temperature, Medium Temperature, High Temperature, Normal Temperature","Set pressure(according to CE)":"0,1 - 40 bar | 1,5 - 580 psig","Flange class":"PN 10 - PN 40","Narrowest flow area":"254 - 6.8347 mm\u00b2 | 0.394 - 105.938 in\u00b2","Temperature":"-270 - 450 \u00b0C | -454 - 842 \u00b0F","Bellows material":"Stainless steel and elastomer"}}