ASME B16-10 Valve Face To Face

WHAT IS VALVE FACE-TO-FACE DIMENSION?

The valve face-to-face dimension refers to the distance between the two end faces of a valve, which are the points where the valve connects to the piping system.

This measurement is crucial for ensuring that the valve fits properly within a given piping layout and for facilitating valve replacement or system upgrades. Manufacturers and industry standards, such as those provided by the American National Standards Institute (ANSI), American Petroleum Institute (API), and the Manufacturers Standardization Society (MSS), specify face-to-face dimensions for different types of valves (e.g., gate, globe, check, ball, and butterfly valves) and service conditions. Standardizing these dimensions helps in maintaining uniformity across valves produced by different manufacturers, allowing for easier interchangeability and system maintenance.

THE ASME B16.10 SPECIFICATION

ASME B16.10 is a widely recognized standard issued by the American Society of Mechanical Engineers (ASME) that specifies the face-to-face and end-to-end dimensions of flanged and butt-welded end steel valves. This standard is critical for ensuring the compatibility and interchangeability of valves within piping systems, facilitating easier installation, maintenance, and replacement.

The standard covers a variety of valve types, including gate, globe, plug, ball, check, and butterfly valves, and applies to a broad range of sizes and pressure classes.

By defining precise dimensions for each valve type, ASME B16.10 helps to standardize valve design across the industry, making it simpler for engineers and designers to select and specify valves for new installations or to find suitable replacements for existing systems.

Adherence to ASME B16.10 ensures that valves manufactured by different companies can be used interchangeably in a piping system without the need for modifications, provided they conform to the same type, size, and pressure class as specified in the standard.

This interoperability is crucial for maintaining the efficiency, safety, and reliability of fluid handling systems across various applications, including oil and gas, chemical processing, power generation, and water treatment.

ASME B16.10 SIGNIFICANCE FOR VALVES MANUFACTURERS

The ASME B16.10 standard plays a crucial role for valve manufacturers by providing a comprehensive guideline for the face-to-face and end-to-end dimensions of various types of valves, including gate, globe, check, ball, and butterfly valves. Adhering to this standard offers several significant benefits to manufacturers:

Ensures Interoperability: By defining standardized dimensions for valves, ASME B16.10 ensures that valves produced by different manufacturers can be used interchangeably within piping systems without the need for system modification. This interoperability is crucial for end-users looking to replace or upgrade valves without altering existing piping layouts.
Facilitates Design and Manufacturing Processes: ASME B16.10 provides a clear set of guidelines that manufacturers can follow during the design and manufacturing processes. This standardization helps streamline production, reduce design costs, and minimize the risk of errors that could lead to incompatibility with existing systems.
Enhances Market Competitiveness: Compliance with internationally recognized standards like ASME B16.10 demonstrates a manufacturer’s commitment to quality and reliability. This compliance can enhance a manufacturer’s reputation in the market, making their products more attractive to customers who prioritize standardization for ease of maintenance and system integrity.
Promotes Safety and Reliability: Following ASME B16.10 helps ensure that valves are designed to fit properly within a variety of systems, thereby reducing the likelihood of leaks or failures due to improper fit or installation. This contributes to the overall safety and reliability of fluid handling systems in critical applications across industries.
Simplifies Inventory and Distribution: For distributors and stockists, the standardization of valve dimensions means that a smaller inventory can serve a wider range of applications, reducing storage costs and simplifying logistics. This efficiency benefits manufacturers, distributors, and end-users alike.
Supports Regulatory Compliance: In many industries and regions, compliance with ASME standards is either a regulatory requirement or a key factor in project specifications. By adhering to ASME B16.10, valve manufacturers ensure that their products meet the necessary criteria for use in a wide range of projects, from industrial applications to infrastructure and beyond.

In summary, ASME B16.10 is essential for valve manufacturers as it promotes interoperability, streamlines production processes, enhances competitiveness, ensures safety and reliability, simplifies inventory management, and supports regulatory compliance. These benefits underscore the importance of this standard in the global valve manufacturing industry.

HOW TO SELECT VALVE FACE-TO-FACE

Selecting the appropriate valve face-to-face dimension according to ASME B16.10 involves a systematic approach, taking into consideration the type of valve, its application, and the specific requirements of the piping system. Here’s how you can go about it:

Identify the Valve Type
Start by identifying the type of valve you need for your application (e.g., gate, globe, ball, butterfly, check). Each valve type has different design characteristics and applications, influencing the required face-to-face dimension.
Determine the Valve Size and Class
Determine the size (diameter) of the valve required based on the flow rate and the size of the piping system. Also, identify the pressure class of the valve, which is based on the maximum pressure and temperature the valve needs to withstand. The size and class will impact the face-to-face dimensions.
Consult ASME B16.10
With the valve type, size, and class in mind, consult the ASME B16.10 standard. The standard provides tables with face-to-face and end-to-end dimensions for various types of valves across different sizes and pressure classes. Locate the appropriate table for your valve type and find the dimension that matches your valve’s size and class.
Consider System Requirements
Consider any specific requirements of your piping system that may influence the selection. For instance, if the valve is to replace an existing valve, ensure the selected dimension matches the available space and existing piping layout. For new installations, consider ease of maintenance, future replacements, and system expansion possibilities.
Check for Exceptions or Special Cases
Note that certain applications or systems may have exceptions or require special considerations that could affect the choice of valve face-to-face dimension. For example, specialized processes or extreme operating conditions may necessitate custom or non-standard dimensions. In such cases, consultation with valve manufacturers or engineering experts is advised.
Confirm Compatibility
Ensure that the selected valve and its face-to-face dimension are compatible with the flanges or end connections of the piping system. Compatibility is crucial for a leak-proof system and efficient operation.
Seek Manufacturer’s Data
Manufacturers often provide detailed catalogs or datasheets with their valves’ dimensions, including face-to-face lengths, which are compliant with ASME B16.10. Refer to these documents to confirm the selection and availability of the required valve.

Selecting the correct valve face-to-face dimension according to ASME B16.10 enhances the efficiency, safety, and reliability of your piping system. This process ensures that the valve will fit properly within the system, facilitating maintenance and future replacements while adhering to industry standards.

ASME B16.10 VALVE FACE-TO-FACE SIZE CHARTS (CLASS 150 TO 2500)

VALVES CLASS 150

Note: dimensions in mm for flanged valves with RF face (ASME B16.10)

150#	Ball Long Pattern	Ball Short Pattern	Gate Solid Wedge and Double Disc	Gate Conduit	Plug Short Pattern	Plug Regular Pattern	Plug Venturi Pattern	Plug Round Port Full Bore	Globe Lift and Swing Check	Y-Globe and Y-Swing Check
1/2	108	108	108	–	–	–	–	–	108	140
3/4	117	117	117	–	–	–	–	–	117	152
1	127	127	127	–	140	–	–	176	127	165
1 1/4	140	140	140	–	–	–	–	–	140	184
1 1/2	165	165	165	–	165	–	–	222	165	203
2½	178	178	178	178	178	–	178	267	203	229
2½	190	190	190	190	190	–	–	298	216	279
3	203	203	203	203	203	–	203	343	241	318
4	229	229	229	229	229	305	229	432	292	368
5	–	–	254	–	254	381	–	–	356	–
6	394	267	267	267	267	394	394	–	406	470
8	457	292	292	292	292	457	457	–	495	597
10	533	330	330	330	330	533	533	–	622	673
12	610	356	356	356	356	610	610	–	698	775
14	686	381	381	381	–	686	686	–	787	–
16	762	406	406	406	–	762	762	–	914	–
18	864	–	432	432	–	864	864	–	978	–
20	914	–	457	457	–	914	914	–	978	–
22	–	–	–	508	–	–	–	–	1067	–
24	1067	–	508	508	–	1067	1067	–	1295	–
26	–	–	559	559	–	–	–	–	1295	–
28	–	–	610	610	–	–	–	–	1448	–
30	–	–	610	660	–	–	–	–	1524	–
32	–	–	–	711	–	–	–	–	–	–
34	–	–	–	762	1016	–	–	–	–	–
36	–	–	711	813	–	–	–	–	1956	–

VALVES CLASS 300

Note: dimensions in mm for flanged valves with RF face (ASME B16.10)

300#	Ball Long Pattern	Ball Short Pattern	Gate Solid Wedge and Double Disc and Conduit	Plug Short and Venturi Pattern	Plug Regular Pattern	Plug Round Port Full Bore	Globe and Lift Check	Swing Check
1/2	140	140	140	–	–	–	152	–
3/4	152	152	152	–	–	–	178	–
1	165	165	165	159	–	190	203	216
1 1/4	178	178	178	–	–	–	216	229
1 1/2	190	190	190	190	–	241	229	241
2½	216	216	216	216	–	282	267	267
2½	241	241	241	241	–	330	292	292
3	282	282	282	282	–	387	318	318
4	305	305	305	305	–	457	356	356
5	–	–	381	–	–	–	400	400
6	403	403	403	403	403	559	444	444
8	502	419	419	419	502	686	559	533
10	568	457	457	457	568	826	622	622
12	648	502	502	502	711	965	711	711
14	762	572	762	762	762	–	–	838
16	838	610	838	838	838	–	–	864
18	914	660	914	914	914	–	–	978
20	991	711	991	991	991	–	–	1016
22	1092	–	1092	1092	1092	–	–	1118
24	1143	813	1143	1143	1143	–	–	1346
26	1245	–	1245	1245	1245	–	–	1346
28	1346	–	1346	1346	1346	–	–	1499
30	1397	–	1397	1397	1397	–	–	1594
32	1524	–	1524	1524	1524	–	–	–
34	1626	–	1626	1626	1626	–	–	–
36	1727	–	1727	1727	1727	–	–	2083

VALVES CLASS 600

Note: dimensions in mm for flanged valves with RF face (ASME B16.10)

600#	Ball Long Pattern	Gate Solid Wedge and Double Disc and Conduit Long Pattern	Plug Regular and Venturi Pattern	Plug Round Port Full Bore	Globe Lift Check and Swing Check Long Pattern
1/2	165	165	–	–	165
3/4	190	190	–	–	190
1	216	216	216	254	216
1 1/4	229	229	229	–	229
1 1/2	241	241	241	318	241
2½	292	292	292	330	292
2½	330	330	330	381	330
3	356	356	356	444	356
4	432	432	432	508	432
5	–	508	–	–	508
6	559	559	559	660	559
8	660	660	660	794	660
10	787	787	787	940	787
12	838	838	838	1067	838
14	889	889	889	–	889
16	991	991	991	–	991
18	1092	1092	1092	–	1092
20	1194	1194	1194	–	1194
22	1295	1295	1295	–	1295
24	1397	1397	1397	–	1397
26	1448	1448	1448	–	1448
28	1549	1549	–	–	1600
30	1651	1651	1651	–	1651
32	1778	1778	1778	–	–
34	1930	1930	1930	–	–
36	2083	2083	2083	–	2083

VALVES CLASS 900

Note: dimensions in mm for flanged valves with RF face (ASME B16.10)

900 #	Gate Solid Wedge and Double Disc and Conduit Long Pattern	Plug Regular and Venturi Pattern	Plug Round Port Full Bore	Globe Lift Check and Swing Check Long Pattern	Ball Long Pattern
3/4	–	–	–	229	–
1	254	254	–	254	254
1¼	279	279	–	279	279
1½	305	305	356	305	305
2	368	368	381	368	368
2½	419	419	432	419	419
3	381	381	470	381	381
4	457	457	559	457	457
5	559	–	–	559	–
6	610	610	737	610	610
8	737	737	813	737	737
10	838	838	965	838	838
12	965	965	1118	965	965
14	1029	–	–	1029	1029
16	1130	1130	–	1130	1130
18	1219	–	–	1219	1219
20	1321	1321	–	1321	1321
22	–	–	–	–	–
24	1549	–	–	1549	1549

VALVES CLASS 1500

Note: dimensions in mm for flanged valves with RF face (ASME B16.10)

1500#	Gate Solid Wedge Double Disc and Conduit Long Pattern	Plug Regular and Venturi Pattern	Plug Round Port Full Bore	Globe Lift Check and Swing Check Short Pattern	Ball Long Pattern
1/2	–	–	–	216	–
3/4	–	–	–	229	–
1	254	254	–	254	–
1¼	279	279	–	279	–
1½	305	305	–	305	–
2	368	368	391	368	368
2½	419	419	454	419	419
3	470	470	524	470	470
4	546	546	625	546	546
5	673	–	–	673	–
6	705	705	787	705	705
8	832	832	889	832	832
10	991	991	1067	991	991
12	1130	1130	1219	1130	1130
14	1257	–	–	1257	1257
16	1384	1384	–	1384	1384
18	1537	–	–	1537	–
20	1664	–	–	1664	–
22	–	–	–	–	–
24	1943	–	–	1943	–

VALVES CLASS 2500

Note: dimensions in mm for flanged valves with RF face (ASME B16.10)

2500#	Gate Solid Wedge Double Disc and Conduit Long Pattern	Plug Regular Pattern	Globe Lift Check and Swing Check Long Pattern	Ball Long Pattern
1/2	264	–	264	–
3/4	273	–	273	–
1	308	308	308	–
1¼	349	–	349	–
1½	384	384	384	–
2	451	451	451	451
2½	508	508	508	508
3	578	578	578	578
4	673	673	673	673
5	794	794	794	–
6	914	914	914	914
8	1022	1022	1022	1022
10	1270	1270	1270	1270
12	1422	1422	1422	1422