J61Y Type High Temperature and High Pressure Closed Welding Needle Valve This valve is applicable to the high pressure and high temperature pipelines of steam power plants as the opening and closing mechanism. The valve body material is made of high-quality carbon steel stainless steel (1Cr18Ni9Ti) or heat-resistant alloy steel (12CrMoV) forging, and the sealing surface is made of hard alloy surfacing. Model and performance size High Efficiency Spirotal Heat Exchanger The equipment is made of two rolls forming spiral channels.Two kinds of heat transfer media can flow in full countercurrent, which greatly enhances the heat transfer effect, Even small temperature difference can achieve ideal heat transfer. High Temperature Spiral Plate Heat Exchanger,Spirotal Heat Exchanger Equipment,Spiral Board Plate Heat Exchanger,Carbon Steel Spiral Plate Heat Exchanger Yangzhou Tongyang Chemical Equipment Co., Ltd. , https://www.tongyangchemic.com
(Figure 1: Schematic diagram of high temperature and high pressure needle valve) model Nominal diameter (DN) Nominal pressure (MPa) Body material Applicable temperature (°C) Suitable medium J61Y-32P-6 6 32 1Cr18Ni9Ti ≤570 Water, steam, etc. J61Y-32P-10 10 J61Y-32P-15 15 J61Y-32P-20 20 J61Y-P57 170V 6 17 12CrMoV ≤570 J61Y-P57 170V 10 J61Y-P57 170V 15 J61Y-P57 170V 20 J61Y-250-6 6 25 Carbon steel ≤450 J61Y-250-10 10 J61Y-250-15 15 J61Y-250-20 20
The nozzle of tangential structure with Low resistance, Due to helical channel are average curvature, There is no big liquid flow, Therefore, the design flow rate can be increased so it has high heat transfer capacity.
Type I Non detachableSpiral plateHeat exchanger`s helical channel are welded and sealed, so it has high sealing performance.
Type II detachableSpiral plateHeat exchanger`s Structure principle similar to above,But one of the channel can be disassembled and cleaned, especially for heat exchange with viscous and precipitated liquid.
Type III detachableSpiral plateHeat exchanger`s Structure principle similar to above,But two channels can be disassembled and cleaned,ranges aremore extensive.
The nominal pressure PN of spiral plate heat exchanger is 0.6, 1, 1.6 and 2.5MPa (refers to the maximum working pressure of single channel) , material can be divided into carbon steel and stainless steel.Customers can choose according to the actual process
When a single device cannot meet the requirements, multiple devices can be used in combination, but the combination must conform to the following provisions: parallel combination, series combination, equipment and channel spacing is the same. Hybrid combination: one channel in parallel, one channel in series