Figure 5-5B. Non-Blending Flow Control Valve Holding Back Pressure - Wayne Vista Series Service

FIGURE 5-5B. NON-BLENDING FLOW CONTROL VALVE HOLDING BACK PRESSURE

November 1992
12 13
1
Indicates High Pressure
1. Actuator
2. Passageway from inlet chamber to outer chamber
3. Orifice through valve plate to center chamber
4. Passageway to the actuator inlet from the center chamber
5. Actuator outlet
6. Relief valve
7. Center section
8. Diaphragm material
9. Valve plate
10. Cover
11. Body
12. Slow flow poppet
13. Full flow poppet
14. Diaphragm return spring
5
OUTLET
INLET
LEGEND
A. Inlet chamber
B. Outer chamber
C. Center chamber
11
14
6
4
3
2
A
B
C
A
9
8
7
10
Part No. 917543 Rev. A
37