The maximum recommended differential water pressure across a valve is 60 psi (4.1 bar).
Figure 1. 3/8 in. direct acting low-flow valve flowchart
Figure 2. 3/8 in. direct acting valve flowchart
Figure 3. 1/2 in. direct acting valve flowchart
Figure 4. 3/4 in. direct acting valve flowchart
Figure 5. 1 in. direct acting valve flowchart
Figure 6. 1 1/4 in. direct acting valve flowchart
Figure 7. 1 1/2 in. direct acting valve flowchart
Figure 8. 2 in. direct acting valve flowchart
