Emerson 788 DVC manual Recommended Low Flow Set-point

DANIELTM MODEL 788DVC DIGITAL CONTROL VALVES D E C 2012

6.Lift off the cylinder head by taking out the socket screws.

7.Remove and inspect all O-rings for nicks, cuts and wear.

Figure 5-1. Using the Piston to Insert the Seat Ring into the 150/300 lb. Cylinder

Table 5-l. Typical Opening/Closing Speed

	Typical	Recommended Low Flow Set-point				Typical	Typical	Typical	Typical
Line	Dead					Opening	Opening	Closing	Closing
Size	Time		Turbine	PD Meter		Speed	Time	Speed	Time
Inches	Setting					Adjust-	(Shut-off	Adjust-	(Full
	(Seconds)					ment	to Full	ment	Open to
		gpm	K-factor	gpm	K-factor	(Turns	Open)	(Turns	Shut-off)
						Open)	Seconds	Open)	Seconds
2-3	0.015	100	50	100	100	0.25	5.0	0.75	2.0
4	0.015	150	25	150	25	0.25	5.0	0.75	2.0
6	0.030	150	25	150	25	0.75	5.0	1.25	2.0
8	0.030	150	25	150	25	0.75	5.0	1.25	2.0

DISASSEMBLY AND REASSEMBLY 5-3