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API STD 599

Steel Plug Valves Flanged or Buttwelding Ends

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Organization: API
Publication Date: 1 January 1978
Status: active
Page Count: 16
scope:

This standard covers steel plug valves with flanged or buttwelding ends NPS 1 through NPS 24 corresponding to nominal pipe sizes in ANSI BJ6.10.

This standard covers valves in Classes 150 to 2500 in ANSI B16.34.

The valves described in this standard are the lubricated or nonlubricated type having two-way coaxial ports. This standard includes valves fitted with internal body or port liners or applied hard facings on either bodies, body ports, plugs, or plug ports. The material and extent of liners are not covered. These special needs must be stated in the purchase order when desired.

Three-way and four-way plug valves are not included in this standard.

Plug valves covered by this sumdard are classified under four general design groups as follows:

1.Short pattern: The short pattern design has the same face-to-face dimensions as Classes 150 and 300 flanged steel gate valves corresponding to those in ANSI B16.10.

2.Regular pattern: The body of the regular pattern design, although designed as nearly as possible for streamline flow, does not approach the shape of a venturi throat because the plug ports are larger than those in the venturi pattern. In the regular pattern design, the plug port area is substantially greater than that for the venturi valve.

3.Venturi pattern: Valves of the venturi pattern are designed for minimum pressure loss consistent with the reduced port area used in this type of valve and have a conjunction of body and plug ports approximating a venturi throat.

4.The round-port full-bore pattern: The round-port- full-bore pattern has a circular port through both plug and body equal to at least the inside diameter of the comparable ANSI B16.5 fitting.

The standard nomenclature for valve parts is shown in Figure 1. Although the figure indicates a lubricated design, nonlubricated valves may be similar except for the omission of the lubrication groove and the substitution of mechanical means for freeing the plug.

Document History

March 1, 2020
Metal Plug Valves—Flanged, Threaded, and Welding Ends
This standard specifies the requirements for quarter turn metal plug valves, including the lift plug type, for the petroleum, petrochemical, and industrial applications. This standard is applicable...
January 1, 2013
Metal Plug Valves—Flanged, Threaded and Welding Ends
This standard covers design, materials, face-to-face dimensions, pressure-temperature ratings, and examination, inspection, and test requirements for metallic plug valves as follows. — Steel, nickel...
October 1, 2007
Metal Plug Valves—Flanged, Threaded and Welding Ends
This standard covers steel, nickel base and other alloy plug valves with flanged or butt-welding ends and ductile iron plug valves with flanged ends in sizes NPS 1/2 through NPS 24 and threaded or...
August 1, 2002
Metal Plug Valves - Flanged, Threaded and Welding Ends
This standard covers steel, nickel base and other alloy plug valves with flanged or butt-welding ends and ductile iron plug valves with flanged ends in sizes NPS ½ through NPS 24 and threaded or...
January 1, 1994
Metal Plug Valves - Flanged and Welding Ends
1.1 Scope 1.1.1 This standard covers metal plug valves with flanged or butt-welding ends and ductile iron plug valves with flanged ends in sizes NPS 1 through NPS 24, which correspond to nominal pipe...
March 1, 1988
Steel and Ductile Iron Plug Valves
This standard covers steel, alloy steel, and stainless steel plug valves with flanged or butt-welding ends and ductile iron plug valves with flanged ends in sizes NPS 1 through NPS 24, which...
API STD 599
January 1, 1978
Steel Plug Valves Flanged or Buttwelding Ends
This standard covers steel plug valves with flanged or buttwelding ends NPS 1 through NPS 24 corresponding to nominal pipe sizes in ANSI BJ6.10. This standard covers valves in Classes 150 to 2500 in...
October 1, 1970
STEEL PLUG VALVES FLANGED OR BUTTWELDING ENDS
a. This standard covers steel plug valves with flanged or buttwelding ends, in nominal sizes of 1 to 24 in. corresponding to nominal pipe sizes (NPS) in ANSI B36.10. b. This standard covers valves...

References

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