burkert 2712 burkert2702 burkert 2000是常用的气动调节阀的底座，burkert8693、burkert 8694是常用的宝德定位器。如图：他们之间可与连接：

英文德国宝德资料介绍：

Manually-operated angle-seat valve of the type series 2000/2702 are delivered as standard with threaded or weld end port connection. Type 2000 with manual actuator without position indicator is used only for On/Off function. Type 2702 with manual actuator andposition indicator is designed with a parabolic trim and therefore it can be used to control a defi ned fl ow.