The VMDC relief valve has been updated.  The new version is backward compatible but pressure ranges have changed on the options slightly.  Refer to the attached PDF for details on the new VMDC relief valve.  Additionally, please note that installation torque has changed.  The old VMDC had a tightening torque of 40 Nm.  The new version has a tightening torque of 30 Nm.

Specifications:  VMDC Specifications