816 series Technical features:
- non-rising stem;
- body and bonnet connected by bolts;
- body and bonnet sealing: spiral wound gasket;
- gate: parallel expanding, with spring;
- stem packing for high temperature and steam service;
- end connection: 6B flange type acc. to API 6A (with Ring Joint), or API threaded;
- back seat permits to replace stem packing under pressure.
GT 910 series Technical features:
- non-rising stem;
- body and bonnet connected by bolts;
- body and bonnet sealing: metallic gasket;
- gate: parallel expanding, with spring;
- stem packing: Graf oil gaskets & soft packing;
- end connection: 6B flange type acc. to API 6A (with Ring Joint), or API threaded;.
| Design, manufacturing |
API Spec 6A |
| Size |
2 1/16” to 4 1/16” |
| Working Pressure |
2,000; 3,000; 5,000 PSI |
| Temperature Range |
0 to 650 oF (-18 to + 345)oC |
