Glossary
Common Geothermal Valve Dimensions (ANSI/API)
| ANSI |
API |
RING GASKET |
| 3″ 600 |
3-1/8″ 2M |
R-31 |
| 3″ 900 |
3-1/8″ 3M |
R-31 |
| 3″ 1500 |
3-1/8″ 5M |
R-35 |
| 4″ 600 |
4-1/16″ 2M |
R-37 |
| 4″ 900 |
4-1/16″ 3M |
R-37 |
| 4″ 1500 |
4-1/16″ 5M |
R-39 |
| 6″ 600 |
7-1/16″ 2M |
R-45 |
| 6″ 900 |
7-1/16″ 3M |
R-45 |
| 6″ 1500 |
7-1/16″ 5M |
R-46 |
| 8″ 600 |
9″ 2M |
R-49 |
| 8″ 900 |
9″ 3M |
R-49 |
| 8″ 1500 |
9″ 5M |
R-50 |
| 10″ 300 |
|
R-53 |
| 10″ 600 |
11″ 2M |
R-53 |
| 10″ 900 |
11″ 3M |
R-53 |
| 10″ 1500 |
11″ 5M |
R-54 |
| 12″ 400 |
|
R-57 |
| 12″ 600 |
13-5/8″ 2M |
R-57 |
| 12″ 900 |
13-5/8″ 3M |
R-57 |
| 16″ 600 |
16-3/4″ 2M |
R-65 |
| 16″ 900 |
13-3/4″ 3M |
R-66 |
| 20″ 600 |
21-1/4″ 2M |
R-73 |
| 20″ 900 |
20-3/4″ 3M |
R-74 |
Common Gate Types
- EXP: Expanding Gate
- SLAB: Slab Gate
- Wedge: Wedge Gate
Common Geothermal Trims
- Standard: Standard Carbon Steel
- SS: Stainless Steel
- GEO: Geothermal Trim, otherwise known as a customized Stellite 21 or 6 trim
- INC: Inconel
Types of Flanges
- WN: Weld Neck to weld on a pipe as a Butt Weld
- SOW: Slip on Weld – pipe fits inside the flange
- Blind: Solid Flange with no bore
- FE: Flanged End
- RF: Raised Face – Not a common flange face from TNG inventory
- RTJ: Ring Tool Joint – Flange face on most of TNG valves
Other Identifiers
- HWO: Hand Wheel Operated
- EFO: Extended Flange Outlet
- Additional Wellhead Components
- CHF: Casing Head Flange
- SSA: Single Studded Adaptor
- DSA: Double Studded Adaptor
- CHF: Casing Head Flange
- SSA: Single Studded Adaptor
- DSA: Double Studded Adaptor
