The Valtek Mark Eight control valve features a unique Y-style globe body that provides higher flow capacities and less process turbulence than conventional globe valves.
Additional information
| Valve Size | 1" to 18" |
|---|---|
| Pressure Class Standard | ASME B16.34 |
| Pressure Class Range | Class 150, 300, 600, 900, 1500, 2500 |
| Body | Y-Pattern Globe |
| End Connections | Separable Flange, Integral Flange, Screwed (NPT), Socket Weld, Butt Weld, Grayloc |
| Face-to-Face Standard | Manufacturer Standard |
| Bonnet | Standard, Extended, Cold Box Extended, Cryogenic, Bellows Seal |
| Packing | Standard, Twin Seal, Vacuum Seal, Environment Fugitive Emissions, Live-Loaded |
| Guiding | Double Top Stem Internal to Bonnet |
| Trim | Plug & Clamped Seat, Special Cage & Stack Designs |
| Trim Characteristics | Equal Percentage, Linear, Quick-Open |
| Seating | Metal-to-Metal & Soft |
| Shut-Off Classification | ANSI FCI 70-2 Class IV, V, VI |
Features & Benefits
- Lower valve recovery factor and higher Cv per given size over traditional globe style valves due to straight-through passage
- Significantly reduced noise and vibration owing to less restrictive body style, which generates less line turbulence
- Double Top Stem Guiding moves the critical function of assuring alignment of the trim out of the flow path
- Single Piece Plug & Stem assures integrity of the assembly, avoiding side load fracturing
- Oversized Stem provides greater durability for high-pressure applications
- Plug Contours provide flow characteristics with higher rangeability than cage designs
- Floating Seat is clamped in-place after alignment to ensure tight-shutoff and easy service
- Seat Retainer (Cage) is not a throttling component, allowing for more cost effective material selection
- Bolted Bonnet eliminates service issues related to threaded designs
- Severe Service Trim options can easily be designed or retro-fitted into standard trim valve
Standards & Certifications
| Certifications | Canadian Registration Number (CRN) |
|---|---|
| PED Directive 97/23/EC | |
| Design Standards | ASME B16.5 – Pipe Flanges & Flanged Fittings |
| ASME B16.9 – Factory-Made Wrought Buttwelding Fittings | |
| ASME B16.10 – Face to Face & End Dimenions of Valves | |
| ASME B16.11 – Forged Fittings, Socket-Welding & Threaded | |
| ASME B16.25 – Buttwelding Ends | |
| ASME B16.34 – Valve Flanged, Threaded, and Welding End | |
| ASME SA Materials | |
| ASTM A Materials | |
| Quality | IS0 9001:2008 |
| ATEX QAN | |
| IECEX QAR |
