HTST Valve Schedule
Valve #	Valve Type	Function
28	MID actuator	CLT1 inlet
29	MID actuator	Open during CIP cleaning; closed during forward flow so all product goes through regenerative heating system; mid-position during start-up to allow some milk to pass through regenerative heating system.
30		spare valve
31	valve positioner	Serves as a flow control device based on output from MM1. When flow is diverted, it partially closes to induce a pressure loss approximately equal to that found in the mechanical components of the system located after the flow diversion valves. Open when processing mix or milk.
32	actuator	extended hold tube inlet for ice cream mix
33	actuator	extended hold tube outlet for ice cream mix
34	flow diversion	divert valve
35	flow diversion	leak detect
36	valve positioner	Used to by-pass regenerative heating by-pass to keep (cheese) milk warm. Open for cheese milk and yogurt; closed for mix
37		spare valve
38	MID actuator	Directs product to separator when open; product by-passes separator when closed; mid position used for CIP operation.
39	throttling valve	controls skim milk back pressure from PS5 signal
40	MID actuator	skim milk shutoff
41	throttling valve	controls regen back pressure from PS3 signal
42	MID actuator	HTST1 to pasteurized tanks PT1 and PT2)
43	MID actuator	HTST1 to cheese vats
44	MID actuator	HTST1 to skim tank (SK1)
45	MID actuator	HTST1 to recycle. Serves as a safety valve that opens if a set pressure limit is exceeded (fails open)
46	MID actuator	HTST1 to drain
MSV 1	sampling valve	sampling valve for cream stream
MSV 2	sampling valve	sampling valve for skim stream