Page 34 - Apollo - Top Entry Ball Valves

EXTENDED BONNETS

EXTENDED BONNET HEIGHT
ASME Class 150 ASME Class 600
See ASME Class 300
Table Std Port Full Port Std Port Full Port
in. (mm) in. (mm) in. (mm) in. (mm)
3" & Smaller 4" 4" 4" 4"
DN 80 & Smaller (102) (102) (102) (102)
4" 4" 6.5" 4" 6.5"
DN 100 (102) (165) (102) (165)
6" 6.5" 6.5" 6.5" 6.5"
DN 150 (165) (165) (165) (165)
8" 6.5" 10" 6.5" 10"
DN 200 (165) (254) (165) (254)
10" 10" 12.5"
DN 250 (254) (318)
12" 10" 12.5"
EXTENDED DN 300 (254) (318)
BONNET
(Add “-70” Suffix)

ADVANTAGES:

£ Extended bonnets provide excellent performance in higher temperature or semi cryogenic applications.
• The extended bonnet design moves the stem seals further away from the process flow’s temperature, and the stem
seals’ temperature is closer to ambient temperature.

£ Extended bonnets move the packing adjustment at least 4”; therefore, installed insulation typically will not need
to be disturbed to adjust the stem packing.
• If and when stem leakage occurs, it can be immediately observed and corrective action taken without insulation
removal.

£ A valuable feature of the Extended Bonnet is that it is field retrofitable.
• In addition to being able to order valves with several bonnet styles direct from the factory, pre-assembled
kits are available with the stem, bonnet, packing, gland, plate and nuts assembled together and properly torqued
for dependable performance. Contact your local Apollo Representative for kit part numbers for any specific valve
or application.

N-34 www.apollovalves.com Customer Service (704) 841-6000