Compatible with testo 549, testo 550, testo 557 and testo 570
With the valve replacement kit, you can replace two valve positioners - on the high pressure and low pressure side or at the two middle connections on the digital manifold
Replacing the valve positioners is really easy and can be carried out independently on site
Specificationsarrow_drop_down
Suitable For Use With: Testo 549/Testo 550/Testo 557/Testo 570