Trunnion side entry ball valve is the most popular ball valve design for Oil & Gas application. The ball is hold on a fixed vertical a xis, and it’s free to rotate about it. Sealing is assured by pressure & spring energized seats. Body could be 2 or 3 bolted pieces. In Smaller size ball is supported by a Trunnion, while in larger size Trunnion plates are employed. Valves are designed in accordance with most recognized international standards, as well as the applicable customer specifications.

Body Material may vary from carbon steel, stainless steel, duplex stainless steel and any exotic alloy. Various solutions are available for body seals and seats, including true metal-to-metal contact sealing

TECHNICAL FEATURES
- Design according API 6D, ISO 17292, ASME B16.34, ASME VII
- 2 or 3 pieces Split Bolted Body
- Metal to metal seats
- Ends according ASME B16,5 RTJ or RF,BW, Custom design Clamps.
- Size from1” to 60”, pressure class form ASME 150 to ASME 2500
- Size from 1”1/8 to 10 1/16” class from API 3000 to API 10.000
- Anti blowout stem
- Antistatic design
- Double block & Bleed configuration
- Self Relieving or Double Piston Seats
- Optional Emergency sealant grease injection for seat and stem sealings
- Fire safe according ISO 10497, API 607, API 6FA, B6755-2

Fully welded ball valves are characterized by body fabricated by welding of forged rings. The result is a solid
assembly with no leakage paths.
Fully welded application are preferable solution when no maintenance is scheduled on valves and when avoid
any external leakage is mandatory. A typical application are Underground valves
Welding is performed by Highly qualified professionals, in accordance with all applicable ASME requirements.
Same options and features of side entry Trunnion ball valve are available also Fully welded ball valves

TECHNICAL FEATURES
- Design according API 6D, APi 6A, Api 6DSS, API 17D ISO 17292, ASME B16.34, ASME VII
- Metal to metal seats
- Ends according ASME B16,5 RTJ or RF,BW, Custom design Clamps.
- Size from1” to 48”, pressure class form ASME 150 to ASME 2500
- Size from 1”1/8 to 10 1/16” class from API 3000 to API 10.000
- Fire safe according ISO 10497, API 607, API 6FA, B6755-2

Top Entry ball valve design is characterized by one piece body construction, with top access to all internal
components.
Top Entry Ball Valves are the preferable solution when it is required to perform in line maintenance, and when
the reduction of possible leakage path is mandatory
Body could be manufactured from forged billet or high quality castings.
Same options and features of side entry Trunnion ball valve are available also for top entry ball valves

TECHNICAL FEATURES
- Design according API 6D, APi 6A, ISO 17292, ASME B16.34, ASME VII
- Forged or Cast body
- Metal to metal seats
- Ends according ASME B16,5 RTJ or RF,BW, Custom design Clamps.
- Size from1” to 48”, pressure class form ASME 150 to ASME 2500
- Size from 1”1/8 to 10 1/16” class from API 3000 to API 10.000
- Available in cryogenic, high temperature, or high pressure configuration
- Fire safe according ISO 10497, API 607, API 6FA, B6755-2

Della Foglia is one of the first company worldwide to reach API 6DSS qualification for subsea pipeline ball
valves. This proves the capability of Della Foglia to manufacture such critical products
Special design is developed for each application in order to guarantee the required performance level for the
whole predicted life of the valve
High level quality control inspection & test, as well as advanced design tools (finite element simulation, fatigue
analysis, fluidodynamic study etc.) contribute to increase the performance of the valves
Internal testing facility is available to perform hydrostatic and gas test up to 1000bar pressure.

TECHNICAL FEATURES
- Design according API 6DSS, 17D, ASME VII Div.2
- Bolted Body, Top Entry or Fully Welded design
- Metal to metal seats
- Special Engineered gaskets for high pressure service
- High tpressure testing according customer spec
- Highest Quality control level
- Size up to 10 1/16 API 10.000, 24” ASME 2500

Double Ball Valves are basically made up of two ball valves in one solid body. They provide two physical barrier
against downstream leakages, with a very compact pattern.
Double ball are available in both floating and trunnion mounted configuration. Dif ferent body construction are
available: one piece body (cartridge type), bolted body and fully welded body.
Center bleed port between the valves allows testing of valve’s performance, and provide “double block and
bleed” feature with the maximum safety.

TECHNICAL FEATURES
- Design according API 6D, APi 6A, ISO 17292, ASME B16.34, ASME VII
- Forged body
- Metal to metal seats
- Ends according ASME B16,5 RTJ or RF,BW, Custom design Clamps.
- Size from1” to 48”, pressure class form ASME 150 to ASME 2500
- Size from 1”1/8 to 10 1/16” class from API 3000 to API 10.000
- Available in cryogenic, high temperature, or high pressure configuration
- Fire safe according ISO 10497, API 607, API 6FA, B6755-2