V1-1: 1/4-4″, 900-4500#

Valv Metal Seated ball Valves
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Technical Data
Pressure Classes

ASME / ANSI Class 900-4500

Materials of Construction

Carbon steel (A105) – standard
Alloy steel (F22, F91) – standard
Stainless steel (316H) – standard
Other materials available upon request

In Compliance

ASME B16.34
Nuclear ASME III Class 1, 2 and 3
Nuclear Safety Related – 10CFR50 Appendix B

End Connections

Socketweld, buttweld, NPT – standard
Others available upon request


Absolute zero-leakage shutoff

Demand the Original

The flagship of the ValvTechnologies’ product line, the V1-1, is the valve by which all other severe service metal-seated ball valves are measured. The V1-1 design includes integral seats, RiTech® hard coatings, blowout-proof stem and live-loaded packing. Primarily used in severe service applications, V1-1 valves are manufactured to each customer’s unique specifications.

The V Series’ proven seat supported design provides improved performance, far beyond the capability of linear operated valves which feature obstructed and torturous flow paths. ValvTechnologies’ design and construction delivers the extra safety margin so crucial to maintaining productivity: customers benefit by realizing increased security, less downtime and lower maintenance.

V1-1’s are engineered to be leak-free, maximize flow and reduce the overall cost of ownership. So confident of their performance, only ValvTechnologies’ V1-1 valves are backed by the best four year, zero-leakage warranty in the industry.

  1. Integral metal seat. With our proprietary HVOF RiTech® coating technology, the integral seat in ValvTechnologies’ valves is resistant to the attack of abrasive magnetite and ferrous oxides that may be seen 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 1400°F. The body seal ring is loaded at a pressure higher than 20,000 psi. In addition, valves sized three 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 HVOF RiTech® 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 V Series’ sealing design features a four stud, live-loaded assembly designed for heavy industrial applications. The sealing material is high purity Grafoil® surrounded by stainless steel wire mesh anti-extrusion rings. The six Belleville® springs (per stud) provide constant load pressure through extreme thermal shocks and prevent wear leaks in high-cycle service.
  5. Blow-out proof stem 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.
  6. Backpressure protected sealing. Standard with the V1-1 valves, the design prevents the upstream spring from collapsing in a reverse flow condition, protecting the internals from damage and guaranteeing shutoff in the reverse direction.
  7. Zero-leakage shutoff. ValvTechnologies tests every valve according to ANSI procedures, however, we toughen the standard and define zero-leakage as no detectable leakage of gas or a liquid for a period of three minutes or greater. The ValvTechnologies’ standard is zero drops and zero bubbles, guaranteed.

  • Through conduit design: No tortuous flow path. When open it has the highest possible Cv’s. Minimized wear & tear. Benefit: Eliminated vibration, reduced maintenance
  • Fixed position – quarter turn: No seating torques required. Benefit: Minimized stem wear, lower cost of ownership
  • Hardened blowout proof stem: One piece, inserted through the body & shouldered. Eliminates the weak link of collared & pinned designs. Benefit: Improved safety
  • Metallic body seal ring: Increases body integrity by eliminating external leakage. Benefit: Improved reliability, zero-leakage shutoff
  • Live-loaded packing gland: Minimum four bolt configuration with shallow stuffing box. Ensures consistent torque at variable pressures & temperatures. Benefit: Increased reliability
  • Hardcoated & mate lapped seats: High Velocity Oxygen Fuel (HVOF) RiTech® chrome carbide hardcoating with a Rockwell C of up to 72. Mate-lapped seats. Benefit: Wear & corrosion resistant, increased reliability, zero-leakage shutoff
  • Seat designs: Hardcoated, both ball & integral downstream seat to the end-cap to eliminate a potential leak path. Benefit: Increased reliability
  • Simplicity of design: Designed for ease of installation & maintenance. Benefit: Easily actuated, increased system reliability, increased efficiencies, ease of use, reduced maintenance
  • Stringent testing: Every valve is tested, documented & serialized. Benefit: Increased reliability, increased safety, total traceability
  • Four-year warranty*: The very best in the industry. Includes internal seat leakage & external leakage through the packing &/or body seal. Benefit: Lower cost of ownership, increased reliability

*steam and water applications

  • Insulating jackets: For further protection valves can be fitted with removable and reusable valve insulation blanket jackets
  • Mounting hardware: ValvTechnologies’ external stop mounting hardware minimizes or eliminates stem and sealing performance problems caused by a faulty re-installation of an operator on an automated valve
  • Other options:
    • Bi-directional shutoff
    • Special end connections available
    • Class V sealing in the reverse direction
    • Tandem arrangements
    • Complete automation packages available
    • Characterized trim
    • Oval hand wheel
    • Actuator mounting

Fossil Power Applications

  • Above and below seat drains
  • Ash handling
  • Attemporator spray control
  • Boiler drains
  • Boiler feed pump isolation
  • Continuous boiler blowdown
  • Electronic relief
  • Feedwater heater drains
  • Feedwater isolation
  • Instrument isolation
  • Main steam stop
  • Recirculation
  • Seal steam regulators
  • Sight/gauge glass drains
  • Soot blower regulators
  • Startup vents
  • Steam dump
  • Turbine bypass systems
  • Turbine drain

Nuclear Generation Applications

  • Boiler feedwater
  • Circulating water system
  • Component cooling
  • Condensate extraction
  • Condensate cooling water
  • Emergency feedwater
  • Fire protection system
  • HP safety injection
  • HP & LP heater drains
  • Heat exchanger vent & drains
  • Main steam system isolation, drain & vent
  • Power operated relief valve (PORV)
  • Pressurizer drain & vent
  • Rad waste system
  • Reactor coolant pump drain & vent
  • Reactor head vents
  • Reactor water cooling vents & drains
  • Safety injection system
  • Secondary system isolation, drain & vent
  • Service water system isolation
  • Steam generator system
  • Turbine by-pass
  • Turbine drain & vent
  • Fukushima tie ins
  • Reliable hardened vents

Upstream Oil and Gas

  • Wellhead choke isolation
  • Emergency shutdown
  • Compressor recycle and isolation
  • Sour gas isolation and control
  • Steam, water and gas injection
  • Steam chokes
  • SAG-D isolation
  • Pig launcher and receiver
  • Mud drilling isolation and check
  • Lean & rich amine isolation
  • Molecular sieve regeneration isolation
  • Molecular sieve absorber isolation
  • First and second stage separator isolation

Downstream and Chemical Processing

  • Coking (delayed & flexi)
    Feed isolation
    Overhead vapor line
    Cutting water isolation
  • Fluidized catalytic cracking
    Catalyst handling
    Slurry isolation & control steam
  • Ethylene
    Steam decoke isolation
    Furnace isolation
    Steam vent
    Quench oil isolation & control
  • Polyethylene
    High cycle (PTO)
    Reactor block
  • Heavy oil upgrading & hydrocracking
    (H-oil & LC fining)
    Catalyst addition & withdrawal
    Filter & pump isolation
    Overhead vapor isolation & control
    High delta-P isolation & control
  • Reforming (CCR)

Mining and Minerals

  • High pressure slurry
    Transportation Systems
    Pump discharge isolation
    Pipeline isolation stations
    Pipeline choke stations
    Rupture disk isolation
    Instrument isolation
  • Autoclaves
    Vessel feed and discharge
    Acid injection
    Gas injection
    Steam injection
  • Mineral concentrators
    Thickener underflow
    Discharge isolation
    Filter press manifold isolation
    Slurry transfer systems
    PRV isolation
  • Waste disposal
    Tailings pipelines
    Paste backfill

Pulp and Paper

  • Boiler vent and drain
  • Liquor isolation and control
  • Rapid drain
  • Steam isolation
  • Sky vents
  • Dryer pressure control
  • Digester steam control
  • Lime mud isolation and  control

Specialty industries: Other industry solutions available. Contact the factory for more information.

Standard ValvTechnologies’ four-year zero leakage warranty in steam and water applications.