API Std 609

API Std 609 – Butterfly Valves: Double-flanged, Lug- and Wafer-type, and Butt-welding Ends, Ninth Edition

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.

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 60 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. Sizes covered are listed below:

• for lug and wafer, Class 150 and 300: NPS 2 to NPS 60;
• for lug and wafer, Class 600: NPS 3 to NPS 60;
• for double-flanged short and long pattern, Class 150, 300, and 600: NPS 3 to NPS 60;
• for butt-welding ends, Class 150, 300 and 600: NPS 3 to 60;

Product Details

Edition:

9th

Published:

04/01/2021

Number of Pages:

34

File Size:

1 file , 820 KB

Redline File Size:

2 files , 7 MB

Product Code(s):

C60909, C60909, C60909, C60909

Note:

This product is unavailable in Russia, Cuba, Syria, North Korea, Ukraine, Belarus, Iran

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-base alloy, or special alloy butterfly valves that provide tight shutoff in the closed position and are suitable for flow regulation.

Product Details

Edition:

6th

Published:

05/01/2004

Number of Pages:

13

File Size:

1 file , 220 KB

Product Code(s):

C60906, C60906R, C60906, C60906R, C60906, C60906R

Note:

This product is unavailable in Russia, Cuba, Syria, North Korea, Ukraine, Belarus, Iran

Please note that the API Monogram Program effective date for the this document’s next edition is October 2021. Until then, this edition will still be considered active and not historical.

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.

The following two categories of butterfly valves are included.

a) Category A–Manufacturer’s rated cold workingpressure (CWP) butterfly valves, usually with aconcentric disc and seat configuration. Sizes coveredare NPS 2 to NPS 48 for valves having ASME Class125 or Class 150 flange bolting patterns.

b) Category B–ASME Class and pressure-temperaturerated butterfly valves that have an offset seat andeither an eccentric or a concentric disc configuration.These valves may have a seat rating less than thebody rating. Sizes covered are listed below.

• For lug and wafer, Class 150: NPS 3 to NPS 48.
• For lug and wafer, Class 300 and Class 600: NPS 3 to NPS 48.
• For double-flanged long pattern, Class 150, 300, and 600: NPS 3 to NPS 36.
• For double-flanged short pattern, Class 150 and Class 300: NPS 3 to NPS 48.
• For double-flanged short pattern, Class 600: NPS 3 to NPS 24.

Valve configurations include double flanged, lug- and wafer-type with facings that permits installation between ASME and MSS flanges that conform to the standards and specifications listed in Section 2. Typical valve construction and nomenclature for valve parts are shown in Annex C.

Product Details

Edition:

8th

Published:

02/01/2016

Number of Pages:

36

File Size:

1 file , 780 KB

Redline File Size:

2 files , 4.6 MB

Product Code(s):

C60908, C60908, C60908

Note:

This product is unavailable in Russia, Cuba, Syria, North Korea, Ukraine, Belarus, Iran