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LowFlow's Mark 8000 is a family of heavy-duty control valves specifically designed for process applications requiring full flow or fractional flow control.
LowFlow's Mark 8000 is a family of heavy-duty control valves specifically designed for process applications requiring full flow or fractional flow control. Available in a wide selection of body sizes and styles, this valve can be configured in two-way or three-way designs, for diverting or mixing service, and with globe or angle valve style seats. It can be ordered with a bellows stem seal, with an extended bonnet extension for cryogenic use to -425°F, or with an electric actuator.
The Mark 8000 Series valve subassembly is manufactured completely from barstock, which combined with the standard heavy duty yoke and actuator, gives the valve the ability to handle pressure up to 6000 PSI, while still being able to offer Cvs ranging from 0.05 to 17.
- Heavy-duty barstock construction for pressures up to 6000 PSI
- Ideal for corrosive or harsh process environments
- Globe design to 2", angle pattern to 1"
- In-line maintainable for quick, easy trim repairs
- ANSI shutoff Class III for Cv <3.5, Class IV for Cv 3.5 or higher
Model Selection Guide
Make one selection from each section of the chart. A finished model number
will look like this: 8000G050CB/PTT6AEA30000AD00
Description | Catalog Number | |
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Fractional Flow Control Valve, Threaded Ends, Teflon Packing, with Air Regulator | ||
Model | Two-Way Globe Valve | 8000G- |
Size and Body Material |
1/2" Carbon Steel 1/2" Stainless Steel 3/4" Carbon Steel 3/4" Stainless Steel 1" Carbon Steel 1" Stainless Steel 1-1/4" Carbon Steel 1-1/4" Stainless Steel 1-1/2" Carbon Steel 1-1/2" Stainless Steel 2" Carbon Steel 2" Stainless Steel |
050CB/PTST 050SB/PTST 075CB/PTST 075SB/PTST 100CB/PTST 100SB/PTST 125CB/PTST 125SB/PTST 150CB/PTST 150SB/PTST 200CB/PTST 200SB/PTST |
Plus and Seat | Standard: Linear Hard Standard: =% Hard |
A B |
Flow Coefficient (Cv) |
0.05 0.1 0.2 0.5 1.0 1.5 1.8 2.0 3.0 3.5 4.0 4.3 6.5 7.1 9.0 12.5 16.0 17.0 25.0 |
A B C D E M N F P Q G R H S I T J U K |
Range | 3-15 Direct Acting (Valves <1.5") 3-15 Direct Acting (Valves 1.5" or 2") 3-15 Reverse Acting (Valves <1.5") 3-15 Reverse Acting (Valves 1.5" or 2") |
A30000A A50000A B30000B B50000A |
Action | Direct Air-to-Close Direct Air-to-Open |
D00 R00 |
Control Valve Type | Fractional Flow |
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