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REXROTH比例方向阀：原理：它是一种直动和先导式相结合的原理，当入口与出口没有压差时，通电后，电磁力直接把先导小阀和主阀关闭件依次向上提起，阀门打开。当入口与出口达到启动压差时，通电后，电磁力先导小阀，主阀下腔压力上升，上腔压力下降，从而利用压差把主阀向上推开；断电时，先导阀利用弹簧力或介质压力推动关闭件，向下移动，使阀门关闭。
特点：在零压差或真空、高压时亦能可*动作，但功率较大，要求必须水平安装。
REXROTH比例方向阀：原理：通电时，电磁力把先导孔打开，上腔室压力迅速下降，在关闭件周围形成上低下高的压差，流体压力推动关闭件向上移动，阀门打开；断电时，弹簧力把先导孔关闭，入口压力通过旁通孔迅速腔室在关阀件周围形成下低上高的压差，流体压力推动关闭件向下移动，关闭阀门。

Rexroth	R912001755	FRKS0001/003,0
Rexroth	R912002613	FVCA01.1-7K50-3P4-MDA-LP-NNNN-01V01
Rexroth	R912002623	FVAA01.1-P-NNNN-01V01
Rexroth	R912003316	FENF01.1A-A075-E0022-A-480-NNNN
Rexroth	R912003760	EFC3600-1K50-1P2-MDA-7P-NNNN
Rexroth	R912003761	EFC3600-2K20-1P2-MDA-7P-NNNN
Rexroth	R912003765	EFC3600-2K20-3P4-MDA-7P-NNNN
Rexroth	R912004668	FVCA01.1-1K50-3P4-MDA-LP-P002-01V01
Rexroth	R912004670	FVCA01.1-4K00-3P4-MDA-LP-P002-01V01
Rexroth	R912004671	FVCA01.1-5K50-3P4-MDA-LP-P002-01V01
Rexroth	R912005093	EFC3610-11K0-3P4-MDA-7P-NNNNN-NNNN
Rexroth		019793-K-36024VDC1.45A(4WE10J33/CG24N9K4)
Rexroth	R900019793	019793-K40424VDC1.45A
Rexroth	0510425009	AZPF-11-008RCB20MB
Rexroth	0510525009	AZPF-11-011RCB20MB
Rexroth		10通径Φ13X1.6X2
SIEMENS		1LA7070-2AA11-Z
Rexroth		2460433S28V（O45DFR泵控制阀）
Rexroth	R983032414	2FRM6B36-2X/6QMV-IN001
Rexroth	R900205507	2FRM6B36-3X/1,5QRV
Eaton		35MPAΦ8M16*1.5=8000
Eaton		35MPAΦ8M16*1.5=9500
Rexroth	R901017022	3PZ5LM12-240VSP&带灯
Rexroth	R901278770	3WE10A5X/EG24N9K4/M
Rexroth	R900561180	3WE6A6X/EG24N9K4
Rexroth	R901350367	4WE10Q3X/CG24N9K4/V升级为4WE10Q5X/EG24N9K4/V
Rexroth	R900595531	4WE10Y3X/CG24N9K4
Rexroth	R900561272	4WE6C6X/EG24N9K4
Rexroth	R900915069	4WE6D6X/EG24N9K4/B10
Rexroth		4WE6G6X/EG24N9K4
Rexroth	R900561288	4WE6J6X/EG24N9K4
Rexroth		4WE6J7X/HG24N9K4
Rexroth	R900940462	4WE6MB6X/EW230N9K4
Rexroth	R900913276	4WE6X7-6X/EG24N9K4
Rexroth	R900561276	4WE6Y6X/EG24N9K4
Rexroth	R900907114	4WREE6E32-2X/G24K31/A1V
HAWE		6905117F1
Rexroth		6通径Φ9.81X1.5X1.78