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V1-2 article

V1-2

Flexibility in Action

Get outstanding flexibility and reliability in the lower pressure class rage (150-600).  ValvTechnologies V1-2 flanged valves come in more sizes – you can put superior performance and long life where they are needed, in virtually any cast or forged material. Specify them with special end connections. Order them with the purge ports you need – and cavity fillers, cryogenic stem extensions, fugitive emission bonnets…all these options can be added to the valves that feature patented hard coatings as standard – and absolute zero leakage guarantee.

Key Benefits

  • Precisely match size and service requirements: ½ to 36 inches, 150-600 pressure classes
  • Proven blowout stem, in one piece, offers safety above standard
  • Abrasive flow damage eliminated with hard-coated ball and integral downstream seat
  • Live loaded packing reduces the need for adjustments, lengthens service intervals
  • Fully engineered fire safety – exceeds the fire test requirements of API 607 Rev 4

Design Features

  1. Integral Metal Seat. With our patented Ceramet and Rocket Applied Metallic (RAM) coatings, the integral seat in ValvTechnologies’ rotary operating valves are resistant from the attack of abrasive magnetite or ferrous oxides in the steam flow.
  2. Body Seal Ring. ValvTechnologies employs a field proven seal ring technology to ensure sealing under all operating conditions, up to 1400o F. The body seal ring is loaded at a pressure higher than 20,000 psi. In addition, valves sized 3 inch and above contain a secondary Grafoil seal to further guarantee reliability
  3. Patented Coating Process. The sealing surfaces are overlaid with Tungsten or Chromium Carbide using our exclusive RAM® process. These surfaces have a hardness of 68 - 72 Rc to allow long periods of operation in the most severe conditions.
  4. Live Loaded Gland Area. The V1 Series gland packing design features a four stud, live-loaded assembly designed for heavy industrial applications. The packing material is high purity Grafoil® surrounded by Carbon Fiber / Inconel anti-extrusion rings. The six Bellville springs (per stud) provide constant load pressure through extreme thermal shocks and prevent wear leaks in high cycle service
  5. Blow-out Proof Stem. ValvTechnologies design utilizes a one piece, hard-faced, blow-out proof stem that is inserted through the inside of the body cavity eliminating the possibility of blow-out through the gland area

Technical Data

Sizes

½ - 36 inches

Pressure Classes

ASME / ANSI Class 150 - 600

Materials of Construction

Carbon Steel (A216 WCB) - standard Stainless Steel (A351 CF8M) - standard Duplex Steel Exotic Alloys Other materials available upon request

In Compliance

ASME B16.34 API 6D PED N & NPT – Nuclear Authorized

End Connections

 Raised Face Flange – standard Other end connections available upon request

Options

Purge ports Bi-directional Sealing Wafer Style Actuator mounting




ZERO LEAK METAL SEATED BALL VALVES

V1-1 article
V1-3 article
V1-4 article



Copyright @ 2013 IMI Industries Company Limited