Jordan MK57 series is a pilot operated pressure sustaining valve and provides greater accuracy and lower offset than can be achieved with self acting valves. It is available in sizes ½”-6″ (Cv’s 5.0-395) and consists of a main valve with a small pilot valve. The Mk57 combines the short stroke of the sliding gate with the action of a pilot valve to create a faster, more accurate response (less droop as flows increase).
Can be used where greater accuracy is required than self acting valves or where control systems are not an option. Suitable for steam, water, oil, gas and chemicals.
Technical Specifications| Brand | Jordan |
| Model | MK57 |
| Type | Pressure Sustaining Valve |
| Style | Pilot Operated Sliding Gate |
| Size Range | 1/4" (DN8) - 6" (DN150) |
| Pressure Rating | Up to 950 PSI |
| Adjustment Range | 20 - 40 PSI (1.4 - 3.1 Bar) 30 - 135 PSI (2.1 - 9.3 Bar) 80 - 185 PSI (5.52 - 12.8 Bar) |
| End Connections | Threaded (FNPT, BSPT, BSPP) ANSI Flanges (150#, 300#) DIN Flanges (PN10/16, PN25/40) |
Material Specifications| Body | Ductile Iron Cast Iron Carbon Steel Stainless Steel |
| Diaphragm | Stainless Steel |
| Seat | Jorcote on SST Jorcote/Jordanic on SST (Severe Service) Chrome Plated SST (Light Duty) |
| Trim | 303 Stainless Steel (Standard on Ductile Iron, Cast Iron, Carbon Steel) 316 Stainless Steel (Standard on Stainless Steel Valves) Monel, Hastelloy & other Alloys available. |
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Jordan MK57 Pressure Sustaining Tech Sheet
Overview-Pressure Sustaining Valves
