Cage Guided Electric Actuated Globe Valve with Electric Actuator

Cage Guided Electric Actuated Globe Valve with Electric Actuator

The电动环球阀是一种压力平衡型调节控制阀，它采用笼子指导，压力平衡阀塞和电动执行器。Electric globe valvereceives the signal of the industrial automation control system to drive the valve to change the cross-sectional area between the valve plug and the valve seat, and control the flow medium, temperature, pressure and other process parameters of the pipeline medium to achieve remote automatic control.This series of electric actuated globe valves are available in various forms such as normal temperature type, high temperature type, cryogenic type and bellows seal type.

The Principle of Cage Guided Electric Actuated Globe Valve:

The electric actuated globe valve automatically controls the opening of the valve according to the signal of the regulating part, thereby achieving the control of the medium flow, pressure and liquid level.In the most commonly used 4-20 mA current signal, when the control system gives the electric globe valve a signal of 4 mA, the electric globe valve is fully closed;and when the 20 mA signal is given, the electric actuated globe valve is fully closed. The different signal values within the range of 4-20 mA correspond to different control valve opening, that is, the valve opening is 50% when giving it 12 mA signal. According to the medium of the working condition, the flow rate,temperature and pressure corresponding to each opening of the electric globe valve can be calculated. Thereby, the modulating requirement of the regulating valve to the working medium is achieved.

Technical Parameters of Electric Actuated Globe Valve:

DN(mm)			20	25	32	40	50	65	80	100	125	150	200	250		300
Seat Diameter(mm)			20	25	32	40	50	65	80	100	125	150	200		250	300
Flow Coefficient (Kv)	Linear		6.9	11	17.6	27.5	44	69	110	176	275	440	690	1100		1760
	Equal Percentage		6.3	10	16	25	40	63	100	160	250	400	630	1000		1600
额定旅行（MM）			10	16		25		40			60				100
Actuator Type		3810L	381LS-8	381LS-20		381LS-30		381LS-50			381LS-65				381LS-99
		PSL	PSL201	PSL202		PSL204		PSL208			PSL312				PSL325
		Explosion-proof	381LX-20			381LX-30		381LX-50			381LX-65				381LX-99
电压			AC220V 50Hz
信号范围			4～20mA DC 0～10mA DC or 1～5V DC 0～10V DC
Fault Position			fully open, fully closed, self-locking
Flow Characteristics			线性，相等的百分比
允许泄漏（L/H）			single seated:IV class;
			双座：ⅲ课；
Adjustable Ratio(R)			50:1

The Main Materials and Suitable Medium & Temperature of Electric Globe Valve:

DN(mm)		DN15-DN300
Main Parts	Body/Bonnet	WCB（ZG230-450）	ZG1CR18NI9TI（304）	ZG1Cr18Ni12Mo2Ti（316）
	插头/座椅	1CR18NI9TI（304）或星状浮焊	1CR18NI9TI（304）或星状浮焊	1Cr18Ni12Mo2Ti(316) or stellite surfacing welding
	Stem	2Cr13	1Cr18Ni9Ti	1Cr18Ni12Mo2Ti
	Packing	PTFE,flexible graphite,stainless steel bellows
	垫圈	RPTFE,stainless steel gasket,metal graphite spiral gasket
	推杆，笼子	2Cr13
Application	Medium	water,steam,oil,liquid,etc	Alkali corrosive gas & liquid	Corrosive gas & liquid such as acetic acid
	Normal Temperature	-30～+250 F4：≤200℃	-40～+250 F4：≤200℃	-40～+250℃ F4：≤200℃
	高温	-30～+450℃	-40～+500℃	-40～+500℃
	低温	-40～-196℃

The Dimensions of Electric Actuated Globe Valve with Electric Actuator:

DN(mm)			25	32	40	50	65	80	100	125	150	200	250	300
L（mm）	PN16		185	205	220	254	275	300	350	410	451	600	670	735
	PN40		200	210	235	267	292	317	368	425	473	615	685	750
	PN64		210	220	251	286	311	337	394	440	508	630	700	765
H1(mm)	PN16		58	68	73	80	90	98	108	123	140	168	203	230
H1(mm)	PN40		58	68	73	80	90	98	115	135	150	188	223	255
H1(mm)	PN64		68	75	83	88	100	105	125	148	170	203	235	265
Equipped with PSL	H	正常温度。	614	630	635	640	712	739	761	930	940	960	1165	1185
		高温。	765	788	790	800	895	940	970	1150	1190	1220	1470	1490
	D		176							225
Equipped with 361L	H	正常温度。	665	725	731	755	957	980	1028	1329	1348	1423	1621	1734
		高温。	820	870	895		1125	1150	1195	1410	1586	1667年	1884	2000
	D		225							310
低温Type	-196℃	H2	500		600					700
		H	1120	1310	1320		1460	1478	1497	1850	1860	1900

笼子引导的电动驱动地球阀的特征：

1. The electric actuated globe valve adopts a cage pressure balance structure, and a pressure balance hole is arranged to effectively eliminate the axial unbalance force acting on the upper and lower portions of the valve plug.
2. By changing the shape of the valve plug;,different spool shapes will result in different flow characteristics: equal percentage and linear.
3.适用于流体温度range is -196~+500°C and the valve bonnets of电动环球阀can be divided into normal temperature type, high temperature type and cryogenic type.