Ball valves

Euroguarco manufactures ball valves in forged or cast steel and alloys, by trunnion and floating construction type, lever and gear operated or actuated with any type of actuator: electric, pneumatic, hydraulic and gas over oil.

Construction conforming to API 6D, ASTM/ANSI, ASME, EN, DIN, GOST, BS, JIS.

Various optional designs are available: fire safe design, cryogenic service, buried service, stem extended, metal-to-metal, etc.


Manufacturing Range

  • Temperature from -196°C to 400°C
  • ASME Class 150# up to 2500#
  • Class Rating PN 20 to PN250
  • Sizes from 1/2” to 36”
  • Materials:
    • Cast and Forged Carbon Steel: WCB, WCC, LCB, LCC, A105, LF2,LF3.
    • Forged Stainless & Duplex Steel: F304, F316(L), F6, 17-4PH, AISI 4140, F321, F347, F44, F51, F53, F55.
    • Special Alloys: Inconel 625, Hastelloy, Monel 6Mo, Incolloy 825, Alloy 20, Sanycro 28, Titanium.

Seat Design: Soft or Metal-To-Metal Type

Seat insert and special coatings (for high temperature or aggressive media).

  • Standard materials:
    • PTFE, Nylon, HNBR, VITON, Fluoroloy, PEEK, Vespel, KEL-F, Buna N.
  • Coating and cladding:
    • Electro-less nickel plating (ENP), overlays of seat pockets or the whole surface in contact with fluid by Stellite 6, while TCC (Tungsten Carbide Coating) for metal-to-metal seated valves. Inconel 625 weld overlay on wetted parts and dynamic seals area is available (overlay thickness upon request), as well as CCC (Chromium Carbide Coating), C.R.A. overlays & cladding.
  • Seals & Gaskets (made also in-house by Euroguarco Gasket Division):
    • Viton, HNBR, Graphite, SW316+Graphite, Kel-F, Buna, Lip Seals. Other materials are available on Customer’s request.
  • Bore:
    • Full or reduced
  • Ends:
    • Socket, NPT, butt weld or flanged.

Floating Ball Valves

Euroguarco floating ball valves are mainly used for low-pressure service, as an alternative to trunnion mounted ball valves.With a double chip structure, the ball can float from one side to the other for reducing the operating torque and decrease the valve wear.

Full or reduced port design, in two or three pieces, class rating 150-300-600#, threaded NPT or SW up to 2”, flanged up to 6”.

All balls are precision-machined and mirror-finished for bubble-tight shut-off and less operating torque.

Valve bodies are made by investment casting process; moreover through solution annealing or normalization the highest properties for quality and strength obtained. All body castings are marked with a foundry heat number for full traceability


Trunnion Mounted Ball Valves: Side Entry, Top Entry

Trunnion mounted ball valves are designed for withstanding higher pressure matched to high or low temperature, widely used for a variety of applications for crude oil, natural gas pipelines and others.

They can be of different designs:

split body/side entry, top entry, three-way, fully welded and double block & bleed construction.

Side Entry/Split Body

The body construction comes in 2 or 3-piece (up to 6”) and 3-piece (above 6”).

The combination of trunnion mounted balls and unique spring-loaded upstream sealing, provides bubble-tight shut-off and low operating torques, even at extremely high shut-off pressure.

Low Operating Torque:

the accurate machining of stem, stem packing housing and sealing surface, together with best quality Euroguarco or other equivalent brands sealing material, ensure strict compliance with the most severe pollution control regulations.

Top Entry

The top entry design enables maintenance keeping the valve in service: the valve’s internal parts can be inspected and repaired without removing the valve off the pipeline.

Widely used in pipelines for its safe and reliable operation, our top entry ball valves follow API 6D standard design mainly.

The vast choice of materials, sizes and pressure classes that we offer may permit an ideal selection for virtually any application.


Double Block & Bleed

DBB valves are engineered with one body and two balls, in order to secure more safety but also save weight and space in working environments where these factors are important, e.g. offshore platform.

EG DBB valve enables an easy design of the distribution systems for liquid and gaseous fluids, reducing the risk of failure and leakage. It also provides a reduced maintenance cost of the plant itself and contributes towards a safer workplace.


Fully Welded

Fully Welded ball valves also provide high-reliability and safety with save of weight, for heavy duty maintenance-free performance.

These valves can be used under aggressive environment conditions in the distribution of fluids (gas, oil, hydrocarbons, sour fluids).


Optionals

Stem Extension: valves installed underground or in inaccessible areas, can be equipped with stem and auxiliary piping extensions (drain, vent, sealant, actuator power, etc.).

Transition pieces or pups can be welded on our valves to solve the problem of connection of valve to the existing pipeline, that sometimes may occur.

  • Euroguarco S.p.A.
  • Via Terralba Loc. Pietralba
  • 19021 Arcola (La Spezia), Italy
  • Tel. (+39) 0187 562611
  • Fax (+39) 0187 562955
  • Iscriz. Reg. Imprese CCIAA
    Riviere di Liguria n. 00933640112
  • P.IVA 00933640112
  • Cap. Soc. euro 1.350.000,00 i.v.
  • Informativa sulla privacy