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2. General product information
2.1 General description
These instructions apply to the DP17 and most derivatives including the DP17E, DP17G,
DP17R, DP17Y and DP27G.
The instructions primarily relate to the use of the DP17 on steam but can be used as a guide
when the valve is used on compressed air.
For compressed air the DP17G and DP27G are recommended which have a nitrile seal for
both the main valve and pilot valve.
Note: For additional information see the relevant Technical Information Sheets.
2.2 Sizes and pipe connections - DP17, DP17G, DP17R, DP17Y and DP27G
DN15LC (not available for type DP17G), DN15, DN20, DN25, DN32, DN40 and DN50.
Screwed BSP (BS 21 parallel) or NPT (DN15 to DN25 only).
Standard flanges:
DN15 - DN50 BS 4504 PN16 and PN25
DN25 - DN50 BS 10 Table H and ANSI 300
Available on request:
DN15 - DN50 JIS 10, JIS 16 and ANSI 150
DN15 - DN20 BS 10 Table F
DN15 ANSI 300
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