Product description
The Mark 686G features air-loading, high capacities, accurate regulation, and easy servicing, making it an exceptional choice for your pressure regulating applications. The Mark 686G has a large effective diaphragm area for increased accuracy and sensitivity along with large orifices and body passages which provides high flow capacities. Easily removable bottom cap allows quick access for replacing seat and plug.Pressure Reducing Valve MK686G
Size
- 1/4″ – 2″ (DN8 – DN50)
Diaphragm
- Buna-N/Nylon, Stainless Steel, Viton/Nomex, Jorlon
Endconnections
- Threaded, Flanged
Body Materials
- Carbon Steel, Stainless Steel, Ductile Iron, Bronze
Seat Materials
- Plug – Buna N, Viton, Hardened 17-4 pH Stainless Steel, EPDM
Max Inlet Pressure
- 300 psi (20,7 bar)
Features and Benefits
- Easy to maintain and service – bottom entry to access plug, diaphragm is accessible from the top
- Large effective diaphragm area for increased accuracy and sensitivity
- Large orifices and body passages provide high-flow capacities
- Tight shutoff – choice of hard (ANSI Class IV) or soft (ANSI Class VI) seat
- For applications with deferential pressures up to 300 psi (20,7 bar) on water air, oil, gas, steam and chemicals
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