新型防结晶、防冲蚀、防汽蚀尿素专用P4阀

New-type dedicated urea P4 valve (anti-crystallization, anti-erosion, anti-cavitation)

ZMBM-220/320K

用途：该调节阀为尿素合成塔出口专用阀，主要适用于6～30万吨/年尿素装置尿素合成塔的压力调节。

   主要特点：防结晶、防冲蚀、防汽蚀，阀芯强度高，稳定性好，检修方便等。

主要零件材料：阀体：316L、316Lmod、U3、2RE69

                阀芯、阀座：316L、A4、U3、316Lmod、2RE69

    填料：高强度V型四氟填料

        压缩弹簧：60Si2Mn

Purpose: dedicated valve for outlet of urea synthesis converter of this regulating valve is applicable for pressure regulation of synthesis converter of urea plant with a capacity of 60,000--300,000 tons.

Main Features: anti-crystallization, anti-erosion, anti-cavitation, high-intensity of valve core, small volume, light weight, good stability, convenient maintenance, etc.

Main components:

Valve body: 316L, 316Lmod, U3, 2RE69

Valve core & valve seat: 316L, A4, U3, 316Lmod, 2RE69

Stuffing: high-intensity V-type PTFE stuffing

Compression spring: 60Si2Mn

技术参数

Technical Parameters

公称通径	15		25		32、40、50
阀座直径	12	16	16	20	20	22.5	24	30
额定行程	25					38
流量系数KV	2.5	6.3	6.3	8 10 14	8 10 14	16	20	30
执行机构	HA3R				HAV4R			300汽缸式
手轮机构	SHM—3				SHM—4			SHM—5
允许压差	≥18.5Mpa

注：允许压差确定依据：阀关闭P2=0