ASME B16.10 pdf free download

ASME B16.10 pdf free download FACE-TO-FACEAND END-TO-END DIMENSIONSOF VALVES
1.1 General
This Standard covers face-to-face and end-to-enddimensions of straightway valves, and center-to-face andcenter-to-end dimensions of angle valves. Its purpose isto assure installation interchangeability for valves of agiven material,type,size,rating class,and end connec-tion. Face-to-face and center-to-face dimensions applyto flanged end valves with facings defined in para.2.3.1 and to other valves intended for assembly betweenflat face or raised face flanges. End-to-end dimensionsapply to grooved end，buttwelding end, and flangedend valves with facings defined in para.2.3.3.Center-to-end dimensions apply to buttwelding end and toflanged end valves with facings defined in para. 2.3.3.In Tables 1 to 6 (Tables Al to A6),A or D in acolumn head denotes valves having flanged ends asillustrated; B or E denotes valves having buttweldingends.
1.2 Standard Units
The values stated in either millimeter units (Tablesl to 10) or inch units’ (Tables A1 to A10) are to beregarded separately as standard. Within the text，theinch units are shown in parentheses.The values statedin each system are not exact equivalents; therefore,each system must be used independently of the other.Combining values from the two systems may result innonconformance with the standard.
1.3 Cast lronValves
Only flanged end valves (and others intended forassembly between fianges) are covered by this Standard.Mating dimensions and facings of flanged ends conformto those in ASME B16.1. Dimensional tables for varioustypes and sizes of valves are as follows.
1.3.1 Gate,Plug, and Check Valves(a)Class2125 – Tables 1 and A1(b)Class 250 — Tables 2 and A21.3.2 Globe and Angle Valves(a) Class 125 —Tables 1 and Al(b)Class 250 —Tables 2 and A21.3.3 Wafer Swing Check Valves(a) Class 125 — Tables 7 and A7(b) Class 250 —Tables 7 and A71.3.4 Butterfly Valves
(a) Class 25 -Tables 8 and A8(b) Class 125– Tables 8 and A81.4 Ductile lron Valves
Only flanged end valves (and others intended forassembly between flanges) are covered. Mating dimen-sions and facings of flanged ends conform to those inASME B16.42.Valves are rated Class 150 and Class300.The following cast iron and steel dimensionaltables are also used for ductile valves.
(a)Class 150 —Tables 1 and A1(b)Class 300 —Tables 2 and A21.5 Steel and Alloy Valves
This category includes carbon，alloy, and stainlesssteels，and the nonferrous materials listed in ASMEB16.34. It includes flanged,buttwelding, and groovedends，as well as the types of valves intended forassembly between flanges. Mating dimensions and fac-ings of flanged ends conform to those in ASME B16.5,
ASME B16.47，Series A,or MsS SP-44.[For fangedend butterfly valves,refer to Note (3) of Table 8 (A8)for flange information.] For flangeless or wafer valvesintended for assembly between flanges,refer to Tables7and 8 (A7 and A8) for flange information. Onlybuttwelding end valves in rating Classes 150 through2500 are included in this Standard. Dimensional tablesfor various types and sizes of valves are as follows.
1.5.1Gate,Globe,Angle，Check,Plug, andBall Valves
(a) Class 150—Tables 1 and A1(b)Class 300- Tables 2 and A2(c) Class 600 — Tables 3 and A3(d) Class 900 — Tables 4 and A4ie) Class 1500 — Tables 5 and A5Class 2500 — Tables 6 and A6
1.5.2 Y-Pattern Globe and Y-Pattern SwingCheck Valves
Class 15o – Tables 1 and Al
1.5.3 Wafer Knife Gate ValvesClass 15o — Tables 7 and A7
1.5.4 Wafer Swing Check ValvesClass 150 to 2500 — Tables 7 and A71.5.5 Butterfly Valves
a) Class 150 -Tables 8 and A8(b) Class 300 –Tables 8 and A8c)Class 600 — Tables 8 and A8
1.6 Convention
For the purpose of determining conformance -withthis Standard, the convention for fixing significant digitswhere limits，maximum or minimum values,are speci-fied shall be “rounding off’ as defined in ASTMPractice E29.This requires that an observed or calcu-lated value shall be rounded off to the nearest unit inthe last right-hand digit used for expressing the limit.Decimal values and tolerance do not imply a particularmethod of measurement.
DEFINITIONS
2.1 Valve Size Designation
2.1.1 (DN){Nominal Diameter).The size of avalve is designated by the nominal size of its endconnections. This is denoted by (DN),a dimensionlessnumber indirectly related to the physical size of the connecting pipe (See Tables 1 through 10).The valvesize is not necessarily the same as the inside diameteror port diameter.
2.1.2 NPS (Nominal Pipe Size).The size of avalve is designated by the nominal size of its endconnections.This is denoted by NPS, a dimensionlessnumber indirectly related to the physical size of theconnecting pipe (See Tables A1l through A10). Thevalve size is not necessarily the same as the insidediameter or port diameter.
2.1.3 Reduced port, gate,and ball valves conformingto API 6D are designated for size by two numbers,the first being the NPS (DN) on the valve ends，thesecond being the NPS (DN) of the port (seats，movingparts, etc.); e.g., NPS 6×4 (DN 150 x 100) designatesa valve of end size NPS 6 (DN 150) with a port tomatch NPS 4 (DN 100). These valves , shali haveface-to-face or end-to-end dimensions corresponding tovalves having the same size end connections; i.e.，aNPS 6 × 4(DN 150 x 100) valve shall have theface-to-face or end-to-end dimensions of a NPS 6 (DN150y valve.
2.1.4 Reduced port, pressure seal bonnet,gate, globe,and check valves are designated for size by threenumbers，the first and last being the NPS (DN) of thevalve ends,the second being the NPS (DN) of theport; e.g.，NPS 6 × 4 × 6 (DN 150 x 100 x 150)designates a valve having ends matching NPS 6(DN150) with a port to match NPS 4 (DN 100). Likewise,NPS 6 × 4 × 4 (DN 150 x 100 x i00) woulddesignate a valve having one end matching NPS 6(DN 150),the other matching NPS 4 (DN 100),andthe port matching NPS 4 (DN 100).These valves shallhave face-to-face or end-to-end dimensions correspond-ing to valves having the same port size; i.e.，either aNPS 6 × 4 × 6 (DN 150 × io0 x 150) or a NPS6 ×4 × 4 (DN 150 × 100 x 100) valve shall havethe face-to-face or end-to-end dimensions of a NPS 4(DN 100) valve.