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Xactrol Mark II Control Valve
Brand: ValvTechnologiesIn addition to normal flow conditions, the Xactrol® Mark II has a second flow port through the ball which is designed to handle continuous minimum flow conditions.
For minimum flow conditions, with the valve in the closed position, the cross-hole through the ball determines the minimum flow condition.
Features- Integral Metal Seat - With our exclusive HVOF RiTech® coating process, the integral seat in ValvTechnologies’ rotary operating valves are resistant from the attack of abrasive magnetite or ferrous oxides 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 3″ 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.
- The Xactrol® product group unites ValvTechnologies’ zero-leakage technology with special designs that allow rotary modulating control. From the Mark I’s design that features a characterized upstream seat to the Mark III’s precision engineered stacked disks, the Xactrol® allows the customer to combine precise flow control with tight shut-off. The Xactrol® is typically used in applications where minimum flow and relatively high differential pressures are required.
Specifications
Brand
End Connections
- Buttweld - Standard
- Other End Connections Available Upon Request
- Raised Face Flange - Standard
- Socketweld - 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, A217 WC9, A217 C12A) - Standard
- Carbon Steel (A105, A216 WCB) - Standard
- Duplex Steel
- Exotic Alloys
- Other Materials Available Upon Request
- Stainless Steel (316H, A351 CF8M) - Standard
Pressure Classes
- ASME /ANSI Class 150-4500
Sizes
- 1/2 - 36 “