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API Std 609

$64.50

Butterfly Valves: Double-flanged, Lug- and Wafer-type, Seventh Edition
standard by American Petroleum Institute, 10/01/2009

Category:

Description

This standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection and test requirements for gray iron, ductile iron, bronze, steel, nickel-based alloy, or special alloy butterfly valves that provide tight shutoff in the closed position. The following two categories of butterfly valves are included.

Category A-Manufacturer’s rated cold working pressure (CWP) butterfly valves, usually with a concentric disc and seat configuration. Sizes covered are NPS 2 to NPS 48 for valves having ASME Class 125 or Class 150 flange bolting patterns.

Category B-ASME Class and pressure-temperature rated butterfly valves that have an offset seat and either an eccentric or a concentric disc configuration. These valves may have a seat rating less than the body rating. For lug and wafer, Class 150, 300, and 600, sizes covered are NPS 3 to NPS 24. For double flanged long pattern, Class 150, 300, and 600, sizes covered are NPS 3 to NPS 36. For double flanged short pattern, Class 150 and 300, sizes covered are NPS 3 to NPS 48. For double-flanged short pattern, Class 600, sizes covered are NPS 3 to NPS 24.

Product Details

Edition:
7th
Published:
10/01/2009
Number of Pages:
30
File Size:
1 file , 480 KB
Redline File Size:
2 files , 930 KB
Product Code(s):
C60907, C60907C, C60907C, C60907, C60907C, C60907
Note:
This product is unavailable in Cuba, Iran, North Korea, Syria