GLOSSARY

Glossary

Common Geothermal Valve Dimensions (ANSI/API)

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

Glossary

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-49R-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

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