API 600 Trim Number Chart
API 600 Trim Number Chart
Trim No. | Material | Seat | Disc | Back Seat | Stem |
1 | 410 | 410 | 410 | 410 | 410 |
2 | 304 | 304 | 304 | 304 | 304 |
3 | F310 | 310 | 310 | 310 | 310 |
4* | Hard 410 | Hard 410 | Hard 410 | 410 | 410 |
5 | Hard Faced | Stellite | Stellite | 410 | 410 |
5A | Hard Faced | Ni-Cr | Ni-Cr | 410 | 410 |
6 | 410 and Cu-Ni | 410 | 410 | 410 | 410 |
7* | 410 and Hard 410 | Hard 410 | Hard 410 | 410 | 410 |
8 | 410 and Hard Faced | Stellite | 410 | 410 | 410 |
8A | 410 and Hard Faced | Ni-Cr | 410 | 410 | 410 |
9 | Monel | Monel | Monel | Monel | Monel |
10 | 316 | 316 | 316 | 316 | 316 |
11 | Monel and Hard Faced | Stellite | Monel | Monel | Monel |
12 | 316 and Hard Faced | Stellite | 316 | 316 | 316 |
13 | Alloy 20 | Alloy 20 | Alloy 20 | Alloy 20 | Alloy 20 |
14 | Alloy 20 | Stellite | Alloy 20 | Alloy 20 | Alloy 20 |
15 | 304 and Hard Faced | Stellite | Stellite | 304 | 304 |
16 | 316 and Hard Faced | Stellite | Stellite | 316 | 316 |
17 | 347 and Hard Faced | Stellite | Stellite | 347 | 347 |
18 | Alloy 20 and Hard Faced | Stellite | Stellite | Alloy 20 | Alloy |
* The seats shall be 750BHN Min.
E.g.:
1) Gate Valve , WCB body, API 600 Trim no. 5 means the seat: A105+Stelite, disc: WCB+Stelite, Stem: ASTM A182 F6a
2) Class 150 Gate Valve, WCB body, API 600 Trim no. 1 means the seat: A105+13Cr, disc: WCB+13Cr, Stem: ASTM A182 F6a
3) Carbon Steel Gate Valve, WCB body, API 600 Trim no. 8 means the seat: A105+Stelite, disc: WCB+13Cr, Stem: ASTM A182 F6a
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