Australian Pipeline Valve - Installation, Operation and Maintenance Manual
24
SIDE ENTRY 2P TRUNNION BALL VALVES API6D STANDARD - FS9000 SERIES
Stud lubrication
• Re-tightening of body (with system de-pressurisation) bolting is permissible, if body leakage occurs.
• Required Torque values are given in Table .
• Use a Copper-Based Anti-Seize Grease for stud lubrication.
Bolt tensions shown in Table 1 must be decreased by 25% when other or no
lubrication is used. Non lubricated bolts can have an efficiency of 50% less than the
torque values stated.
Indicative torques are shown only, different body gasket systems, different seating
styles, different sizes & classes etc., will have different torque requirements.
Furthermore, other stud grades can have much lower torques depending if class 1 or
class 2, and or above variables.
A P P E N D I X 2
Label details
DIAGRAM 2
API6D
ANSI B16.34
RATING:
BODY:
P/N:
SEAT:
BALL:
STEM:
S/N:
FIRESAFE
API6FA
API607
9
1
2 4
3
5 7
8
6
No. Figure Number Code
Description
1
Standard
Identifies manufacturing design & standard
2
Pressure Classes
Identifies pressure classification per API requirements
3
Body Material
Identifies body material composition (A105, WCB, F51, CF8M, etc.)
4
Figure Number
Identifies the detailed valve configuration (valve type, bore size, pressure class, materials, etc.)
5
Seat Material
Identifies seat material composition (PEEK, Teflon, Nylon, etc.)
6
Ball Material
Identifies ball/disc material composition (A105, 316SS, ENP, etc.)
7
Stem Material
Identifies stem material composition (A105, 410SS, 17-4pH, etc.)
8
Serial Number
Identifies certified manufacturers serial number
9
Firesafe
Identifies firesafe standard
*
Size
Identifies bore size
**
NACE MR0175
Identifies corrosion resistance
* The body size is cast on the body.
** NACE is indicated by a separate NACE tag.
