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V1-1: 1/4-4″, 900-4500# Metal-Seated Ball Valve
Brand: ValvTechnologiesThe 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*.
Features- 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.
- 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
- 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.
- 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.
- 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.
- 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.
- 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.
Specifications
Brand
End Connections
- Others Available Upon Request
- Socketweld, Buttweld, NPT - Standard
In Compliance
- ASME B16.34
- Nuclear ASME III Class 1, 2 & 3
- Nuclear Safety Related - 10CFR50 Appendix B
- PED
- SIL
Materials of Construction
- Alloy Steel (F22, F91) - Standard
- Carbon Steel (A105) - Standard
- Other Materials Available Upon Request
- Stainless Steel (316H) - Standard
Pressure Classes
- ASME /ANSI Class 900-4500
Shutoff
- Absolute Zero-Leakage Shutoff
Sizes
- 1/4-4”