How To Order API 600 Gate Valve

Supplemental requirements of API 600 standard shall be specifically stated in the purchase order, such as valve size, pressure class, body material, trim material, end connections etc.

Annex B

(normative)

Information to be Specified by the Purchaser

1) Supplemental requirements of API 600 standard shall be specifically stated in the purchase order.

2) If no supplemental requirements are to be taken to this standard, the purchase order just needs to refer to API 600 and to specify the items in the following list that are marked with an asterisk (*). The items listed below without an asterisk are options that may also be specified:

a) valve size *;

b) pressure class *;

c) flanged ends, including flange facing finish [for sizes over DN 600 (NPS 24) specify Series A or B], or welding ends, including bore *;

d) auxiliary connections and openings;

e) valve orientation;

f) additional hard facing of body and/or wedge guides;

g) bonnet gasket and/or bonnet flange facing;

h) tapped openings;

i) wedge gate or double-disc gate (also type of wedge, if required)*;

j) lantern ring;

k) chainwheel and chain;

l) gear operation, including type and arrangement, and the design maximum pressure differential across the valve;

m) power operation, including type of power and power unit, and the design maximum pressure differential across the valve; frequency of operation;

n) bypass—specify either flanged or welded bonnet bypass valve;

o) material of the valve shell *;

p) nominal trim material *;

q) any required exceptions to the manufacturer’s permissible options (e.g., NACE MR 0103);

r) handwheels;

s) safety shield;

t) chainwheel and safety cables, if furnished as original equipment;

u) alternate stem packing material;

v) bonnet bolting material;

w) inspection by the purchaser;

x) high-pressure closure test;

y) supplementary examination and testing;

z) export packaging;

aa) pressure seal bonnet;

bb) alternate paint system or color