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M-b-340: Tuchenhagen Varivent Mix-Proof Type M.O Valve

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HHS:PHS:FDA:CFSAN:OC:DCP:MSB

5100 Paint Branch Parkway
College Park, MD 20740-3835

M-b-340

September 8, 2003

TO: All Regional Food and Drug Directors
Attn: Regional Milk Specialists

FROM: Milk Safety Branch (HFS-626)

SUBJECT: Tuchenhagen Varivent Mix-Proof Type M.O Valve

The Tuchenhagen Varivent Mix-Proof Type M.O Valve 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 manufacture's manual and attachments.

Tuchenhagen Varivent Mix-Proof Type M.O 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, addressing the Tuchenhagen Varivent Mix-Proof Type M.O Valve, constitutes the Tuchenhagen Engineering Design and Technical Construction File.

For further information contact:

Tuchenhagen North America
1000 Riverside Street
Portland, ME 04103
Phone: (207) 979-9500
Fax: (207) 878-7914

FDA's review and acceptance of this Single-Bodied 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
Sr. Milk Sanitation Officer

Attachments:

Literature (page 3)
Technical Data Sheets (page 4)
Regulatory Test Procedures (page 5)
Proximity Switches Adjustment Procedures (page 6)