概述
这种二级可调的溢流阀限制由内装溢流阀芯所控制的管路中的压力。压力调整选项有手动旋钮(带或不带锁)或螺杆／锁紧螺母型式。二级控制和一直使用的平衡活塞阀基本上是同样的，
详细说明见威格士工业液压手册。
以下是DGM系列的阀，常年特价供应，部分型号现货，详情请咨询上海栎洵工业设备有限公司
DGMC2-3-AB-CW-BA-CW-41
871708
DGMC2-3-AB-GW-BA-GW-41
871701
DGMC2-3-AT-BW-BT-BW-41
02-323187
DGMC2-3-AT-CW-BT-BW-41
870074
DGMC2-3-AT-CW-BT-CW-41
871702
DGMC2-3-AT-GW-BT-GW-41
868858
DGMC2-5-AB-FW-BA-FW-30
867323
DGMC2-5-AB-GW-BA-GW-30
02-126877
DGMC2-5-AT-FW-BT-FW-B-30
868308
DGMC2-5-AT-GW-BT-GW-B-30
02-138107
DGMC-3-AT-AW-41
02-138108
DGMC-3-AT-BW-41
02-332812
DGMC-3-AT-BW-B-41
02-139196
DGMC-3-AT-CW-41
02-146949
DGMC-3-AT-CW-B-41
02-108716
DGMC-3-AT-GW-41
02-157052
DGMC-3-AT-GW-B-41
02-147390
DGMC-3-BA-CW-41
870257
DGMC-3-BT-CW-41
02-108133
DGMC-3-BT-GW-41
02-108132
DGMC-3-PT-AW-41
869640
DGMC-3-PT-BW-41
02-147590
DGMC-3-PT-BW-B-41
694419
DGMC-3-PT-CW-41
870233
DGMC-3-PT-CW-B-41
869641
DGMC-3-PT-GW-41
870235
DGMC-3-PT-GW-B-41
02-149394
DGMC-5-AT-FW-B-30
02-395181
DGMC-5-AT-FW-E-B-30
868304
DGMC-5-AT-GW-B-30
868305
DGMC-5-AT-GW-E-B-30
02-127594
DGMC-5-BT-FW-B-30
868306
DGMC-5-BT-GW-B-30
02-317383
DGMC-5-PT-BW-B-30
879342
DGMC-5-PT-FW-B-30
868300
DGMC-5-PT-GW-B-30
867315
DGMC-5-PT-GW-S-30
02-352630
DGMC-7-AT-FH-20
02-352632
DGMC-7-AT-GH-20
02-352635
DGMC-7-BT-FH-20
02-352637
DGMC-7-BT-GH-20
02-352625
DGMC-7-PT-FH-20
02-352624
DGMC-7-PT-GH-20