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Products Valves Steriflow Control Valves Control Valves General SS Application Control valve MK78
Control valve MK78


Product description

The Mark 78 pneumatic control valve is designed for accurate performance and simplified maintenance. It can be used on a variety of applications including viscous/corrosive liquids, process gases or utility steam in process or utility service.
The Mark 78 utilizes a cage-retained seat design with an unbalanced plug. The top entry cage design allows maintenance while the valve is in the line. The trim comes with stainless steel standard or can easily accommodate special materials for maximum corrosion resistance.





Control valve MK78

Size
  • 1/2″ – 2″ (DN15 -DN50)
End Connections
  • Threaded (NPT, BSPT, BSPP);
  • ANSI Flanges (150#, 300#);
  • DIN Flanges (PN 10/16, PN25/40);
  • Integral Flanges (ANSI 150#, 300#)
Body Material
  • Ductile Iron, Carbon Steel, Stainless Steel
Cv (Kv)
  • up to 50 (up to 43)
Seat Materials
  • ANSI Class IV (hard seat); ANSI Class VI Teflon (soft seat)
Ranges
  • 3-15 psi (0,2 – 1,0 bar; 0,4 – 2,1 bar) or split ranges (positioner required)
Features and Benefits
  • Top entry cage design allows easy in-line maintenance
  • Optional shift seats enable ANSI Class VI shutoff
  • Characterized flow options including linear, equal percentage, quick-opening, or an equal-linear combination
  • High capacity service – Cvs up to 60 (Kvs up to 51,6) in 2″ (DN50) valves
  • Lift out seats from easy access and quick maintenance
  • Versatile use
Documents
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STEP Files MK78 - 1/2"
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STEP Files MK78 - 3/4"
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STEP Files MK78 - 1"
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STEP Files MK78 - 1 1/2"
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STEP Files MK78 - 2"
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