HHS:PHS:FDA:CFSAN:OC:DCP:MSB
 
         5100 Paint Branch Parkway
                     College Park, MD  20740-3835
 
            									                  M-b-341
             									
            September 8, 2003
 
 
TO:  		All Regional Food and Drug Directors
      Attn:  Regional Milk Specialists
 
FROM:  	Milk Safety Branch (HFS-626)
 
SUBJECT:    APV Full Line Size Leak Detect Rosista Series DF2 Mix-Proof
                      "Double Seat Valve"
 
 
The APV Full Line Size Leak Detect Rosista Series DF2 Mix-Proof "Double Seat
Valve" utilizing an Effector "Quadronorm" proximity switch (model 1F2004FRKG/6M)
has been reviewed and found to comply with the applicable provisions of the
Grade "A" Pasteurized Milk Ordinance (PMO) when used to separate cleaning
product solution and milk and milk products.
 
Compliance with the PMO is based upon construction, installation, and operation
as described in the manufacturer's manual and attachments.
 
The APV Full Line Size Leak Detect Rosista Series DF2 Mix-Proof "Double Seat
Valve" is a single-bodied double seat valve designed to comply with Item 15p.
PROTECTION FROM CONTAMINATION, 15p.(B) of the PMO. The valve may be used as part
of a fail-safe system to separate milk and milk products from tanks or circuits
containing cleaning and/or sanitizing solution.
 
The technical information that was reviewed constitutes the APV Engineering
Design (drawing 9821025), Technical Construction File, and Regulatory Test
Procedures.
 
For further information contact:
 
      APV Invensys
      100 South CP Avenue
      Lake Mills, Wisconsin 53551
      Phone: (920)-648-8311
      Fax: (920)-648-1423
 
 
 
FDA's review and acceptance of this Double Seat Valve does not constitute agency
endorsement or approval.  Any representation on a label or in printed literature
citing or indicating "FDA Approved" is false and misleading.
 
Copies of this memorandum are enclosed for distribution to Regional Milk
Specialists, State Milk Regulatory Agencies and State Milk Sanitation Rating
Officers in your region. This memorandum will also be available on the FDA Web
site at http://www.cfsan.fda.gov at a later date and should be widely
distributed to representatives of the dairy industry and other interested
parties.
 
 
 
 
 
 
	                                     			   Jonathan M. Gardner
		                      		 	   FDA/MSB, Sr. Milk Sanitation Officer
 
 
 
 
Attachments:
Valve Liturature (page 3)
Valve Description and Dimensions (pages 4-5)
Proximity Sensor Calibration and Test Procedures (pages 6-9)
 
 
 
 

 
 
 
 
 
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M-b-341	1	     September 8, 2003