Product description
The Mark 53 is designed to maintain inlet pressure at a set differential pressure over the signal pressure loaded on the diaphragm. The Mark 54 provides the same flow capacity but with less offset in controlled pressure due to a larger diaphragm. It can be used for both differential and remotely adjusted applications. A negative differential version is also available.Back Pressure Reducing Valve MK53/54
Size
- MK53: 1/4″ – 2″ (DN8 – DN50);
- MK54: 1/4″ – 3/4″ (DN8 – DN20)
Cv (Kv)
- up to 30 (up to 25,8)
Diaphragm
- Jorlon, Stainless Steel, Buna-N, Viton
Setpoint
- MK53: 0.5 – 150 psi (0,03 - 10,3 bar);
- MK 54: 0.5 - 170 psi (0,03 - 11,7 bar)
Body Materials
- Ductile Iron, Bronze, Carbon Steel, Stainless Steel
End Connections
- Threaded, Flanged, Socket Weld, Butt Weld
Options
- Double Diaphragm, Flow through Dome, and Handwheel
Features and Benefits
- Maintains a constant differential between the inlet pressure and the pressure loaded to the top of the diaphragm
- Straight-through flow for reduced turbulence and quiet operation
- Short stroke for fast response and accurate regulation
- Easily interchangeable CV’s
- Tight shutoff
STEP Files
- 54-050-BRDI-BP
- 54-050-BRDI-BT
- 54-050-BRDI-F3
- 54-050-BRDI-F5
- 54-050-BRDI-PT
- 54-050-CSS6-BP
- 54-050-CSS6-BT
- 54-050-CSS6-F3
- 54-050-CSS6-F5
- 54-050-CSS6-PT
- 54-050-CSS6-SW
- 54-075-BRDI-BP
- 54-075-BRDI-BT
- 54-075-BRDI-F3
- 54-075-BRDI-F5
- 54-075-BRDI-PT
- 54-075-CSS6-BP
- 54-075-CSS6-PT
- 54-075-CSS6-F5
- 54-075-CSS6-F3
- 54-075-CSS6-SW
- 54-075-CSS6-BT