API 6D Gate Valve Face-to-face Dimensions
API 6D Gate Valves—Face-to-face and End-to-end Dimensions in inches and millimeters, covering slab gate and through counduit gate valves.
Gate Valves—Face-to-face (A) and End-to-end (B and C) Dimensions1
Class 150-300
Dimensions in inches (millimeters)
| NPS | DN | Raised Face A |
Weld End B |
Ring Joint C |
Raised Face A |
Weld End B |
Ring Joint C |
| Class 150 | Class 300 | ||||||
| 2 | 50 | 7.00 (178) | 8.50 (216) | 7.50 (191) | 8.50 (216) | 8.50 (216) | 9.13 (232) |
| 2-1/2 | 65 | 7.50 (191) | 9.50 (241) | 8.00 (203) | 9.50 (241) | 9.50 (241) | 10.13 (257 |
| 3 | 80 | 8.00 (203) | 11.13 (283) | 8.50 (216) | 11.13 (283) | 11.13 (283) | 11.75 (298) |
| 4 | 100 | 9.00 (229) | 12.00 (305) | 9.50 (241) | 12.00 (305) | 12.00 (305) | 12.63 (321) |
| 6 | 150 | 10.50 (267) | 15.88 (403) | 11.00 (279) | 15.88 (403) | 15.88 (403) | 16.50 (419) |
| 8 | 200 | 11.50 (292) | 16.50 (419) | 12.00 (305) | 16.50 (419) | 16.50 (419) | 17.13 (435) |
| 10 | 250 | 13.00 (330) | 18.00 (457) | 13.50 (343) | 18.00 (457) | 18.00 (457) | 18.63 (473) |
| 12 | 300 | 14.00 (356) | 19.75 (502) | 14.50 (368) | 19.75 (502) | 19.75 (502) | 20.38 (518) |
| 14 | 350 | 15.00 (381) | 22.50 (572) | 15.50 (394) | 30.00 (762) | 30.00 (762) | 30.63 (778) |
| 16 | 400 | 16.00 (406) | 24.00 (610) | 16.50 (419) | 33.00 (838) | 33.00 (838) | 33.63 (854) |
| 18 | 450 | 17.00 (432) | 26.00 (660) | 17.50 (445) | 36.00 (914) | 36.00 (914) | 36.63 (930) |
| 20 | 500 | 18.00 (457) | 28.00 (711) | 18.50 (470) | 39.00 (991) | 39.00 (991) | 39.75 (1010) |
| 22 | 550 | — | — | — | 43.00 (1092) | 43.00 (1092) | 43.88 (1114) |
| 24 | 600 | 20.00 (508) | 32.00 (813) | 20.50 (521) | 45.00 (1143) | 45.00 (1143) | 45.88 (1165) |
| 26 | 650 | 22.00 (559) | 34.00 (864) | — | 49.00 (1245) | 49.00 (1245) | 50.00 (1270) |
| 28 | 700 | 24.00 (610) | 36.00 (914) | — | 53.00 (1346) | 53.00 (1346) | 54.00 (1372) |
| 30 | 750 | 26.00 (660) | 36.00 (914) | — | 55.00 (1397) | 55.00 (1397) | 56.00 (1422) |
| 32 | 800 | 28.00 (711) | 38.00 (965) | — | 60.00 (1524) | 60.00 (1524) | 61.13 (1553) |
| 34 | 850 | 30.00 (762) | 40.00 (1016) | — | 64.00 (1626) | 64.00 (1626) | 65.13 (1654) |
| 36 | 900 | 32.00 (813) | 40.00 (1016) | — | 68.00 (1727) | 68.00 (1727) | 69.13 (1756) |
FOOTNOTES
Tolerance: ±0.06 in. (1.5 mm) on valve sizes 10 in. and smaller
±0.12 in. (3.0 mm) on valve sizes 12 in. and larger
1 See Figure B.13 and Figure B.14 for reference to dimension A, dimension B and dimension C.
Gate Valves—Face-to-face (A) and End-to-end (B and C) Dimensions1
Class 600-900
Dimensions in inches (millimeters)
| NPS | DN | Raised Face A | Weld End B | Ring Joint C | Raised Face A | Weld End B | Ring Joint C |
| Class 600 | Class 900 | ||||||
| 2 | 50 | 11.50 (292) | 11.50 (292) | 11.63 (295) | 14.50 (368) | 14.50 (368) | 14.63 (371) |
| 2 1/2 | 65 | 13.00(330) | 13.00 (330) | 13.13 (333) | 16.50 (419) | 16.50 (419) | 16.63 (422) |
| 3 | 80 | 14.00 (356) | 14.00 (356) | 14.13 (359) | 15.00 (381) | 15.00 (381) | 15.13 (384) |
| 4 | 100 | 17.00 (432) | 17.00 (432) | 17.13 (435) | 18.00 (457) | 18.00 (457) | 18.13 (460) |
| 6 | 150 | 22.00 (559) | 22.00 (559) | 22.13 (562) | 24.00 (610) | 24.00 (610) | 24.13 (613) |
| 8 | 200 | 26.00 (660) | 26.00 (660) | 26.13 (664) | 29.00 (737) | 29.00 (737) | 29.13 (740) |
| 10 | 250 | 31.00(787) | 31.00 (787) | 31.13 (791) | 33.00 (838) | 33.00 (838) | 33.13 (841) |
| 12 | 300 | 33.00 (838) | 33.00 (838) | 33.13 (841) | 38.00 (965) | 38.00 (965) | 38.13 (968) |
| 14 | 350 | 35.00 (889) | 35.00 (889) | 35.13 (892) | 40.50 (1029) | 40.50 (1029) | 40.88 (1038) |
| 16 | 400 | 39.00 (991) | 39.00 (991) | 39.13 (994) | 44.50 (1130) | 44.50 (1130) | 44.88 (1140) |
| 18 | 450 | 43.00 (1092) | 43.00 (1092) | 43.13 (1095) | 48.00 (1219) | 48.00 (1219) | 48.50 (1232) |
| 20 | 500 | 47.00 (1194) | 47.00 (1194) | 47.25 (1200) | 52.00 (1321) | 52.00 (1321) | 52.50 (1334) |
| 22 | 550 | 51.00 (1295) | 51.00 (1295) | 51.38 (1305) | — | — | — |
| 24 | 600 | 55.00 (1397) | 55.00 (1397) | 55.38 (1407) | 61.00 (1549) | 61.00 (1549) | 61.75 (1568) |
| 26 | 650 | 57.00 (1448) | 57.00 (1448) | 57.50 (1461) | — | — | — |
| 28 | 700 | 61.00 (1549) | 61.00 (1549) | 61.50 (1562) | — | — | — |
| 30 | 750 | 65.00 (1651) | 65.00 (1651) | 65.50 (1664) | — | — | — |
| 32 | 800 | 70.00 (1778) | 70.00 (1778) | 70.63 (1794) | — | — | — |
| 34 | 850 | 76.00 (1930) | 76.00 (1930) | 76.63 (1946) | — | — | — |
| 36 | 900 | 82.00 (2083) | 82.00 (2083) | 82.63 (2099) | — | — | — |
FOOTNOTES
Tolerance: ±0.06 in. (1.5 mm) on valve sizes 10 in. and smaller
±0.12 in. (3.0 mm) on valve sizes 12 in. and larger
1 See Figure B.13 and Figure B.14 for reference to dimension A, dimension B and dimension C.
Gate Valves—Face-to-face (A) and End-to-end (B and C) Dimensions1
Class 1500-2500
Dimensions in inches (millimeters)
| NPS | DN | Raised Face A | Weld End B | Ring Joint C | Raised Face A | Weld End B | Ring Joint C |
| Class 1500 | Class 2500 | ||||||
| 2 | 50 | 14.50 (368) | 14.50 (368) | 14.63 (371) | 17.75 (451) | 17.75 (451) | 17.88 (454) |
| 21/2 | 65 | 16.50 (419) | 16.50 (419) | 16.63 (422) | 20.00 (508) | 20.00 (508) | 20.25 (514) |
| 3 | 80 | 18.50 (470) | 18.50 (470) | 18.63 (473) | 22.75 (578) | 22.75 (578) | 23.00 (584) |
| 4 | 100 | 21.50 (546) | 21.50 (546) | 21.63 (549) | 26.50 (673) | 26.50 (673) | 26.88 (683) |
| 6 | 150 | 27.75 (705) | 27.75 (705) | 28.00 (711) | 36.00 (914) | 36.00 (914) | 36.50 (927) |
| 8 | 200 | 32.75 (832) | 32.75 (832) | 33.13 (841) | 40.25 (1022) | 40.25 (1022) | 40.88 (1038) |
| 10 | 250 | 39.00(991) | 39.00 (991) | 39.38 (1000) | 50.00 (1270) | 50.00 (1270) | 50.88 (1292) |
| 12 | 300 | 44.50 (1130) | 44.50 (1130) | 45.13 (1146) | 56.00 (1422) | 56.00 (1422) | 56.88 (1445) |
| 14 | 350 | 49.50 (1257) | 49.50 (1257) | 50.25 (1276) | — | — | — |
| 16 | 400 | 54.50 (1384) | 54.50 (1384) | 55.38 (1407) | — | — | — |
| 18 | 450 | 60.50 (1537) | 60.50 (1537) | 61.38 (1559) | — | — | — |
| 20 | 500 | 65.50 (1664) | 65.50 (1664) | 66.38 (1686) | — | — | — |
| 22 | 550 | — | — | — | — | — | — |
| 24 | 60 | 76.50 (1943) | 76.50 (1943) | 77.63 (1972) | — | — | — |
FOOTNOTES
Tolerance: ±0.06 in. (1.5 mm) on valve sizes 10 in. and smaller
±0.12 in. (3.0 mm) on valve sizes 12 in. and larger
1 See Figure B.13 and Figure B.14 for reference to dimension A, dimension B and dimension C.
